Hello,
We've been working to find a way to bring storage encryption to
entry-level Android devices like the inexpensive "Android Go" devices
sold in developing countries, and some smartwatches. Unfortunately,
often these devices still ship with no encryption, since for cost
reasons they have to use older CPUs like ARM Cortex-A7; and these CPUs
lack the ARMv8 Cryptography Extensions, making AES-XTS much too slow.
We're trying to change this, since we believe encryption is for
everyone, not just those who can afford it. And while it's unknown how
long CPUs without AES support will be around, there will likely always
be a "low end"; and in any case it's immensely valuable to provide a
software-optimized cipher that doesn't depend on hardware support.
Lack of hardware support should not be an excuse for no encryption.
But after an extensive search (e.g. see [1]) we were unable to find an
existing cipher that simultaneously meets the very strict performance
requirements on ARM processors, is secure (including having sufficient
security parameters as well as sufficient cryptanalysis of any
primitive(s) used), is suitable for practical use in dm-crypt and
fscrypt, *and* avoids any particularly controversial primitive.
Therefore, we (well, Paul Crowley did the real work) designed a new
encryption mode, Adiantum. In essence, Adiantum makes it secure to use
the ChaCha stream cipher for disk encryption. Adiantum is specified by
our paper here: https://eprint.iacr.org/2018/720.pdf ("Adiantum:
length-preserving encryption for entry-level processors"). Reference
code and test vectors are here: https://github.com/google/adiantum.
Most of the high-level concepts of Adiantum are not new; similar
existing modes include XCB, HCTR, and HCH. Adiantum and these modes are
true wide-block modes (tweakable super-pseudorandom permutations), so
they actually provide a stronger notion of security than XTS.
Adiantum is an improved version of our previous algorithm, HPolyC [2].
Like HPolyC, Adiantum uses XChaCha12, two passes of an
ε-almost-∆-universal (εA∆U) hash function, and one AES-256 encryption of
a single 16-byte block. On ARM Cortex-A7, on 4096-byte messages
Adiantum is about 4x faster than AES-256-XTS (about 5x for decryption),
and about 30% faster than Speck128/256-XTS.
Adiantum is a construction, not a primitive. Its security is reducible
to that of XChaCha12 and AES-256, subject to a security bound; the proof
is in Section 5 of our paper. Therefore, one need not "trust" Adiantum;
they only need trust XChaCha12 and AES-256. Note that of these two
primitives, AES-256 currently has the lower security margin.
Adiantum is ~20% faster than HPolyC, with no loss of security; in fact,
Adiantum's security bound is slightly better than HPolyC's. It does
this by choosing a faster εA∆U hash function: it still uses Poly1305's
εA∆U hash function, but now a hash function from the "NH" family of hash
functions is used to "compress" the message by 32x first. NH is εAU (as
shown in the UMAC paper[3]) but is over twice as fast as Poly1305. Key
agility is reduced, but that's acceptable for disk encryption.
NH is also very simple, and it's easy to implement in SIMD assembly,
e.g. in ARM NEON. Now, to get good performance only a SIMD
implementation of NH is required, not Poly1305. Therefore, Adiantum can
be easier to port to new platforms than HPolyC, despite Adiantum's
slightly increased complexity. For now this patchset only includes an
ARM32 NEON implementation of NH, but as a proof of concept I've also
written SSE2, AVX2, and ARM64 NEON implementations of NH; see
https://github.com/google/adiantum/tree/master/benchmark/src.
This patchset adds Adiantum to Linux's crypto API, focusing on generic
and ARM32 implementations. Patches 1-9 add support for XChaCha20 and
XChaCha12. Patches 10-13 add NHPoly1305 support, needed for Adiantum
hashing. Patch 14 adds Adiantum support as a skcipher template.
Patch 15 adds Adiantum support to fscrypt ("file-based encryption").
In fscrypt, Adiantum is used for filenames encryption as well as
contents encryption; since Adiantum is a SPRP, it fixes the information
leak when filenames share a common prefix. We also take advantage of
Adiantum's support for long tweaks to include the per-inode nonce
directly in the tweak, which allows providing an option to skip the
per-file key derivation, providing even greater performance benefits.
This patchset applies to v4.20-rc1. It can also be found in git at
branch "adiantum-v3" of:
https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git
As before, the XChaCha and Poly1305 changes conflict with the new "Zinc"
crypto library. But I don't know when Zinc will be merged, so for now
I've continued to base this patchset on upstream. An experimental
version of this patchset based on Zinc can be found at branch
"adiantum-zinc" of the git repository above.
Again, for more details please read our paper:
Adiantum: length-preserving encryption for entry-level processors
(https://eprint.iacr.org/2018/720.pdf)
References:
[1] https://www.spinics.net/lists/linux-crypto/msg33000.html
[2] https://patchwork.kernel.org/cover/10558059/
[3] https://fastcrypto.org/umac/umac_proc.pdf
Changed since v2:
- Simplify the generic NH implementation.
- Add patches to reduce atomic walks and disabling preemption.
- Split Poly1305 changes into two patches.
- Add tcrypt test mode for Adiantum.
- Make NEON 'chacha_permute' a function rather than a macro.
- Use .base.* style when declaring algorithms.
- Replace BUG_ON() in chacha_permute() with WARN_ON_ONCE().
- Set Adiantum instance {min,max}_keysize correctly in all cases.
- Make the Adiantum template take the nhpoly1305 driver name as
optional third argument (useful for testing).
Thanks to Ard Biesheuvel for reviewing the patches.
Changed since v1:
- Replace HPolyC with Adiantum (uses a faster hash function).
- Drop ARM accelerated Poly1305.
- Add fscrypt patch.
Eric Biggers (15):
crypto: chacha20-generic - add HChaCha20 library function
crypto: chacha20-generic - don't unnecessarily use atomic walk
crypto: chacha20-generic - add XChaCha20 support
crypto: chacha20-generic - refactor to allow varying number of rounds
crypto: chacha - add XChaCha12 support
crypto: arm/chacha20 - limit the preemption-disabled section
crypto: arm/chacha20 - add XChaCha20 support
crypto: arm/chacha20 - refactor to allow varying number of rounds
crypto: arm/chacha - add XChaCha12 support
crypto: poly1305 - use structures for key and accumulator
crypto: poly1305 - add Poly1305 core API
crypto: nhpoly1305 - add NHPoly1305 support
crypto: arm/nhpoly1305 - add NEON-accelerated NHPoly1305
crypto: adiantum - add Adiantum support
fscrypt: add Adiantum support
Documentation/filesystems/fscrypt.rst | 187 +-
arch/arm/crypto/Kconfig | 7 +-
arch/arm/crypto/Makefile | 6 +-
...hacha20-neon-core.S => chacha-neon-core.S} | 98 +-
arch/arm/crypto/chacha-neon-glue.c | 201 ++
arch/arm/crypto/chacha20-neon-glue.c | 127 -
arch/arm/crypto/nh-neon-core.S | 116 +
arch/arm/crypto/nhpoly1305-neon-glue.c | 77 +
arch/arm64/crypto/chacha20-neon-glue.c | 40 +-
arch/x86/crypto/chacha20_glue.c | 52 +-
arch/x86/crypto/poly1305_glue.c | 20 +-
crypto/Kconfig | 46 +-
crypto/Makefile | 4 +-
crypto/adiantum.c | 658 ++++
crypto/chacha20_generic.c | 137 -
crypto/chacha20poly1305.c | 10 +-
crypto/chacha_generic.c | 217 ++
crypto/nhpoly1305.c | 254 ++
crypto/poly1305_generic.c | 174 +-
crypto/tcrypt.c | 12 +
crypto/testmgr.c | 30 +
crypto/testmgr.h | 2856 ++++++++++++++++-
drivers/char/random.c | 51 +-
fs/crypto/crypto.c | 35 +-
fs/crypto/fname.c | 22 +-
fs/crypto/fscrypt_private.h | 66 +-
fs/crypto/keyinfo.c | 322 +-
fs/crypto/policy.c | 5 +-
include/crypto/chacha.h | 53 +
include/crypto/chacha20.h | 27 -
include/crypto/nhpoly1305.h | 74 +
include/crypto/poly1305.h | 28 +-
include/uapi/linux/fs.h | 4 +-
lib/Makefile | 2 +-
lib/{chacha20.c => chacha.c} | 59 +-
35 files changed, 5380 insertions(+), 697 deletions(-)
rename arch/arm/crypto/{chacha20-neon-core.S => chacha-neon-core.S} (90%)
create mode 100644 arch/arm/crypto/chacha-neon-glue.c
delete mode 100644 arch/arm/crypto/chacha20-neon-glue.c
create mode 100644 arch/arm/crypto/nh-neon-core.S
create mode 100644 arch/arm/crypto/nhpoly1305-neon-glue.c
create mode 100644 crypto/adiantum.c
delete mode 100644 crypto/chacha20_generic.c
create mode 100644 crypto/chacha_generic.c
create mode 100644 crypto/nhpoly1305.c
create mode 100644 include/crypto/chacha.h
delete mode 100644 include/crypto/chacha20.h
create mode 100644 include/crypto/nhpoly1305.h
rename lib/{chacha20.c => chacha.c} (58%)
--
2.19.1.930.g4563a0d9d0-goog
From: Eric Biggers <[email protected]>
In preparation for exposing a low-level Poly1305 API which implements
the ε-almost-∆-universal (εA∆U) hash function underlying the Poly1305
MAC and supports block-aligned inputs only, create structures
poly1305_key and poly1305_state which hold the limbs of the Poly1305
"r" key and accumulator, respectively.
Signed-off-by: Eric Biggers <[email protected]>
---
arch/x86/crypto/poly1305_glue.c | 20 +++++++------
crypto/poly1305_generic.c | 52 ++++++++++++++++-----------------
include/crypto/poly1305.h | 12 ++++++--
3 files changed, 47 insertions(+), 37 deletions(-)
diff --git a/arch/x86/crypto/poly1305_glue.c b/arch/x86/crypto/poly1305_glue.c
index f012b7e28ad1..88cc01506c84 100644
--- a/arch/x86/crypto/poly1305_glue.c
+++ b/arch/x86/crypto/poly1305_glue.c
@@ -83,35 +83,37 @@ static unsigned int poly1305_simd_blocks(struct poly1305_desc_ctx *dctx,
if (poly1305_use_avx2 && srclen >= POLY1305_BLOCK_SIZE * 4) {
if (unlikely(!sctx->wset)) {
if (!sctx->uset) {
- memcpy(sctx->u, dctx->r, sizeof(sctx->u));
- poly1305_simd_mult(sctx->u, dctx->r);
+ memcpy(sctx->u, dctx->r.r, sizeof(sctx->u));
+ poly1305_simd_mult(sctx->u, dctx->r.r);
sctx->uset = true;
}
memcpy(sctx->u + 5, sctx->u, sizeof(sctx->u));
- poly1305_simd_mult(sctx->u + 5, dctx->r);
+ poly1305_simd_mult(sctx->u + 5, dctx->r.r);
memcpy(sctx->u + 10, sctx->u + 5, sizeof(sctx->u));
- poly1305_simd_mult(sctx->u + 10, dctx->r);
+ poly1305_simd_mult(sctx->u + 10, dctx->r.r);
sctx->wset = true;
}
blocks = srclen / (POLY1305_BLOCK_SIZE * 4);
- poly1305_4block_avx2(dctx->h, src, dctx->r, blocks, sctx->u);
+ poly1305_4block_avx2(dctx->h.h, src, dctx->r.r, blocks,
+ sctx->u);
src += POLY1305_BLOCK_SIZE * 4 * blocks;
srclen -= POLY1305_BLOCK_SIZE * 4 * blocks;
}
#endif
if (likely(srclen >= POLY1305_BLOCK_SIZE * 2)) {
if (unlikely(!sctx->uset)) {
- memcpy(sctx->u, dctx->r, sizeof(sctx->u));
- poly1305_simd_mult(sctx->u, dctx->r);
+ memcpy(sctx->u, dctx->r.r, sizeof(sctx->u));
+ poly1305_simd_mult(sctx->u, dctx->r.r);
sctx->uset = true;
}
blocks = srclen / (POLY1305_BLOCK_SIZE * 2);
- poly1305_2block_sse2(dctx->h, src, dctx->r, blocks, sctx->u);
+ poly1305_2block_sse2(dctx->h.h, src, dctx->r.r, blocks,
+ sctx->u);
src += POLY1305_BLOCK_SIZE * 2 * blocks;
srclen -= POLY1305_BLOCK_SIZE * 2 * blocks;
}
if (srclen >= POLY1305_BLOCK_SIZE) {
- poly1305_block_sse2(dctx->h, src, dctx->r, 1);
+ poly1305_block_sse2(dctx->h.h, src, dctx->r.r, 1);
srclen -= POLY1305_BLOCK_SIZE;
}
return srclen;
diff --git a/crypto/poly1305_generic.c b/crypto/poly1305_generic.c
index 47d3a6b83931..a23173f351b7 100644
--- a/crypto/poly1305_generic.c
+++ b/crypto/poly1305_generic.c
@@ -38,7 +38,7 @@ int crypto_poly1305_init(struct shash_desc *desc)
{
struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
- memset(dctx->h, 0, sizeof(dctx->h));
+ memset(dctx->h.h, 0, sizeof(dctx->h.h));
dctx->buflen = 0;
dctx->rset = false;
dctx->sset = false;
@@ -50,11 +50,11 @@ EXPORT_SYMBOL_GPL(crypto_poly1305_init);
static void poly1305_setrkey(struct poly1305_desc_ctx *dctx, const u8 *key)
{
/* r &= 0xffffffc0ffffffc0ffffffc0fffffff */
- dctx->r[0] = (get_unaligned_le32(key + 0) >> 0) & 0x3ffffff;
- dctx->r[1] = (get_unaligned_le32(key + 3) >> 2) & 0x3ffff03;
- dctx->r[2] = (get_unaligned_le32(key + 6) >> 4) & 0x3ffc0ff;
- dctx->r[3] = (get_unaligned_le32(key + 9) >> 6) & 0x3f03fff;
- dctx->r[4] = (get_unaligned_le32(key + 12) >> 8) & 0x00fffff;
+ dctx->r.r[0] = (get_unaligned_le32(key + 0) >> 0) & 0x3ffffff;
+ dctx->r.r[1] = (get_unaligned_le32(key + 3) >> 2) & 0x3ffff03;
+ dctx->r.r[2] = (get_unaligned_le32(key + 6) >> 4) & 0x3ffc0ff;
+ dctx->r.r[3] = (get_unaligned_le32(key + 9) >> 6) & 0x3f03fff;
+ dctx->r.r[4] = (get_unaligned_le32(key + 12) >> 8) & 0x00fffff;
}
static void poly1305_setskey(struct poly1305_desc_ctx *dctx, const u8 *key)
@@ -107,22 +107,22 @@ static unsigned int poly1305_blocks(struct poly1305_desc_ctx *dctx,
srclen = datalen;
}
- r0 = dctx->r[0];
- r1 = dctx->r[1];
- r2 = dctx->r[2];
- r3 = dctx->r[3];
- r4 = dctx->r[4];
+ r0 = dctx->r.r[0];
+ r1 = dctx->r.r[1];
+ r2 = dctx->r.r[2];
+ r3 = dctx->r.r[3];
+ r4 = dctx->r.r[4];
s1 = r1 * 5;
s2 = r2 * 5;
s3 = r3 * 5;
s4 = r4 * 5;
- h0 = dctx->h[0];
- h1 = dctx->h[1];
- h2 = dctx->h[2];
- h3 = dctx->h[3];
- h4 = dctx->h[4];
+ h0 = dctx->h.h[0];
+ h1 = dctx->h.h[1];
+ h2 = dctx->h.h[2];
+ h3 = dctx->h.h[3];
+ h4 = dctx->h.h[4];
while (likely(srclen >= POLY1305_BLOCK_SIZE)) {
@@ -157,11 +157,11 @@ static unsigned int poly1305_blocks(struct poly1305_desc_ctx *dctx,
srclen -= POLY1305_BLOCK_SIZE;
}
- dctx->h[0] = h0;
- dctx->h[1] = h1;
- dctx->h[2] = h2;
- dctx->h[3] = h3;
- dctx->h[4] = h4;
+ dctx->h.h[0] = h0;
+ dctx->h.h[1] = h1;
+ dctx->h.h[2] = h2;
+ dctx->h.h[3] = h3;
+ dctx->h.h[4] = h4;
return srclen;
}
@@ -220,11 +220,11 @@ int crypto_poly1305_final(struct shash_desc *desc, u8 *dst)
}
/* fully carry h */
- h0 = dctx->h[0];
- h1 = dctx->h[1];
- h2 = dctx->h[2];
- h3 = dctx->h[3];
- h4 = dctx->h[4];
+ h0 = dctx->h.h[0];
+ h1 = dctx->h.h[1];
+ h2 = dctx->h.h[2];
+ h3 = dctx->h.h[3];
+ h4 = dctx->h.h[4];
h2 += (h1 >> 26); h1 = h1 & 0x3ffffff;
h3 += (h2 >> 26); h2 = h2 & 0x3ffffff;
diff --git a/include/crypto/poly1305.h b/include/crypto/poly1305.h
index f718a19da82f..493244c46664 100644
--- a/include/crypto/poly1305.h
+++ b/include/crypto/poly1305.h
@@ -13,13 +13,21 @@
#define POLY1305_KEY_SIZE 32
#define POLY1305_DIGEST_SIZE 16
+struct poly1305_key {
+ u32 r[5]; /* key, base 2^26 */
+};
+
+struct poly1305_state {
+ u32 h[5]; /* accumulator, base 2^26 */
+};
+
struct poly1305_desc_ctx {
/* key */
- u32 r[5];
+ struct poly1305_key r;
/* finalize key */
u32 s[4];
/* accumulator */
- u32 h[5];
+ struct poly1305_state h;
/* partial buffer */
u8 buf[POLY1305_BLOCK_SIZE];
/* bytes used in partial buffer */
--
2.19.1.930.g4563a0d9d0-goog
On 6 November 2018 at 00:25, Eric Biggers <[email protected]> wrote:
> From: Eric Biggers <[email protected]>
>
> Add an XChaCha20 implementation that is hooked up to the ARM NEON
> implementation of ChaCha20. This is needed for use in the Adiantum
> encryption mode; see the generic code patch,
> "crypto: chacha20-generic - add XChaCha20 support", for more details.
>
> We also update the NEON code to support HChaCha20 on one block, so we
> can use that in XChaCha20 rather than calling the generic HChaCha20.
> This required factoring the permutation out into its own macro.
>
> Signed-off-by: Eric Biggers <[email protected]>
Reviewed-by: Ard Biesheuvel <[email protected]>
> ---
> arch/arm/crypto/Kconfig | 2 +-
> arch/arm/crypto/chacha20-neon-core.S | 70 ++++++++++++------
> arch/arm/crypto/chacha20-neon-glue.c | 103 ++++++++++++++++++++-------
> 3 files changed, 126 insertions(+), 49 deletions(-)
>
> diff --git a/arch/arm/crypto/Kconfig b/arch/arm/crypto/Kconfig
> index ef0c7feea6e2..0aa1471f27d2 100644
> --- a/arch/arm/crypto/Kconfig
> +++ b/arch/arm/crypto/Kconfig
> @@ -117,7 +117,7 @@ config CRYPTO_CRC32_ARM_CE
> select CRYPTO_HASH
>
> config CRYPTO_CHACHA20_NEON
> - tristate "NEON accelerated ChaCha20 symmetric cipher"
> + tristate "NEON accelerated ChaCha20 stream cipher algorithms"
> depends on KERNEL_MODE_NEON
> select CRYPTO_BLKCIPHER
> select CRYPTO_CHACHA20
> diff --git a/arch/arm/crypto/chacha20-neon-core.S b/arch/arm/crypto/chacha20-neon-core.S
> index 50e7b9896818..2335e5055d2b 100644
> --- a/arch/arm/crypto/chacha20-neon-core.S
> +++ b/arch/arm/crypto/chacha20-neon-core.S
> @@ -52,27 +52,16 @@
> .fpu neon
> .align 5
>
> -ENTRY(chacha20_block_xor_neon)
> - // r0: Input state matrix, s
> - // r1: 1 data block output, o
> - // r2: 1 data block input, i
> -
> - //
> - // This function encrypts one ChaCha20 block by loading the state matrix
> - // in four NEON registers. It performs matrix operation on four words in
> - // parallel, but requireds shuffling to rearrange the words after each
> - // round.
> - //
> -
> - // x0..3 = s0..3
> - add ip, r0, #0x20
> - vld1.32 {q0-q1}, [r0]
> - vld1.32 {q2-q3}, [ip]
> -
> - vmov q8, q0
> - vmov q9, q1
> - vmov q10, q2
> - vmov q11, q3
> +/*
> + * chacha20_permute - permute one block
> + *
> + * Permute one 64-byte block where the state matrix is stored in the four NEON
> + * registers q0-q3. It performs matrix operations on four words in parallel,
> + * but requires shuffling to rearrange the words after each round.
> + *
> + * Clobbers: r3, ip, q4-q5
> + */
> +chacha20_permute:
>
> adr ip, .Lrol8_table
> mov r3, #10
> @@ -142,6 +131,27 @@ ENTRY(chacha20_block_xor_neon)
> subs r3, r3, #1
> bne .Ldoubleround
>
> + bx lr
> +ENDPROC(chacha20_permute)
> +
> +ENTRY(chacha20_block_xor_neon)
> + // r0: Input state matrix, s
> + // r1: 1 data block output, o
> + // r2: 1 data block input, i
> + push {lr}
> +
> + // x0..3 = s0..3
> + add ip, r0, #0x20
> + vld1.32 {q0-q1}, [r0]
> + vld1.32 {q2-q3}, [ip]
> +
> + vmov q8, q0
> + vmov q9, q1
> + vmov q10, q2
> + vmov q11, q3
> +
> + bl chacha20_permute
> +
> add ip, r2, #0x20
> vld1.8 {q4-q5}, [r2]
> vld1.8 {q6-q7}, [ip]
> @@ -166,9 +176,25 @@ ENTRY(chacha20_block_xor_neon)
> vst1.8 {q0-q1}, [r1]
> vst1.8 {q2-q3}, [ip]
>
> - bx lr
> + pop {pc}
> ENDPROC(chacha20_block_xor_neon)
>
> +ENTRY(hchacha20_block_neon)
> + // r0: Input state matrix, s
> + // r1: output (8 32-bit words)
> + push {lr}
> +
> + vld1.32 {q0-q1}, [r0]!
> + vld1.32 {q2-q3}, [r0]
> +
> + bl chacha20_permute
> +
> + vst1.32 {q0}, [r1]!
> + vst1.32 {q3}, [r1]
> +
> + pop {pc}
> +ENDPROC(hchacha20_block_neon)
> +
> .align 4
> .Lctrinc: .word 0, 1, 2, 3
> .Lrol8_table: .byte 3, 0, 1, 2, 7, 4, 5, 6
> diff --git a/arch/arm/crypto/chacha20-neon-glue.c b/arch/arm/crypto/chacha20-neon-glue.c
> index 2bc035cb8f23..f2d3b0f70a8d 100644
> --- a/arch/arm/crypto/chacha20-neon-glue.c
> +++ b/arch/arm/crypto/chacha20-neon-glue.c
> @@ -1,5 +1,5 @@
> /*
> - * ChaCha20 256-bit cipher algorithm, RFC7539, ARM NEON functions
> + * ChaCha20 (RFC7539) and XChaCha20 stream ciphers, NEON accelerated
> *
> * Copyright (C) 2016 Linaro, Ltd. <[email protected]>
> *
> @@ -30,6 +30,7 @@
>
> asmlinkage void chacha20_block_xor_neon(u32 *state, u8 *dst, const u8 *src);
> asmlinkage void chacha20_4block_xor_neon(u32 *state, u8 *dst, const u8 *src);
> +asmlinkage void hchacha20_block_neon(const u32 *state, u32 *out);
>
> static void chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
> unsigned int bytes)
> @@ -57,20 +58,16 @@ static void chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
> }
> }
>
> -static int chacha20_neon(struct skcipher_request *req)
> +static int chacha20_neon_stream_xor(struct skcipher_request *req,
> + struct chacha_ctx *ctx, u8 *iv)
> {
> - struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
> - struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
> struct skcipher_walk walk;
> u32 state[16];
> int err;
>
> - if (req->cryptlen <= CHACHA_BLOCK_SIZE || !may_use_simd())
> - return crypto_chacha_crypt(req);
> -
> err = skcipher_walk_virt(&walk, req, false);
>
> - crypto_chacha_init(state, ctx, walk.iv);
> + crypto_chacha_init(state, ctx, iv);
>
> while (walk.nbytes > 0) {
> unsigned int nbytes = walk.nbytes;
> @@ -88,22 +85,73 @@ static int chacha20_neon(struct skcipher_request *req)
> return err;
> }
>
> -static struct skcipher_alg alg = {
> - .base.cra_name = "chacha20",
> - .base.cra_driver_name = "chacha20-neon",
> - .base.cra_priority = 300,
> - .base.cra_blocksize = 1,
> - .base.cra_ctxsize = sizeof(struct chacha_ctx),
> - .base.cra_module = THIS_MODULE,
> -
> - .min_keysize = CHACHA_KEY_SIZE,
> - .max_keysize = CHACHA_KEY_SIZE,
> - .ivsize = CHACHA_IV_SIZE,
> - .chunksize = CHACHA_BLOCK_SIZE,
> - .walksize = 4 * CHACHA_BLOCK_SIZE,
> - .setkey = crypto_chacha20_setkey,
> - .encrypt = chacha20_neon,
> - .decrypt = chacha20_neon,
> +static int chacha20_neon(struct skcipher_request *req)
> +{
> + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
> + struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
> +
> + if (req->cryptlen <= CHACHA_BLOCK_SIZE || !may_use_simd())
> + return crypto_chacha_crypt(req);
> +
> + return chacha20_neon_stream_xor(req, ctx, req->iv);
> +}
> +
> +static int xchacha20_neon(struct skcipher_request *req)
> +{
> + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
> + struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
> + struct chacha_ctx subctx;
> + u32 state[16];
> + u8 real_iv[16];
> +
> + if (req->cryptlen <= CHACHA_BLOCK_SIZE || !may_use_simd())
> + return crypto_xchacha_crypt(req);
> +
> + crypto_chacha_init(state, ctx, req->iv);
> +
> + kernel_neon_begin();
> + hchacha20_block_neon(state, subctx.key);
> + kernel_neon_end();
> +
> + memcpy(&real_iv[0], req->iv + 24, 8);
> + memcpy(&real_iv[8], req->iv + 16, 8);
> + return chacha20_neon_stream_xor(req, &subctx, real_iv);
> +}
> +
> +static struct skcipher_alg algs[] = {
> + {
> + .base.cra_name = "chacha20",
> + .base.cra_driver_name = "chacha20-neon",
> + .base.cra_priority = 300,
> + .base.cra_blocksize = 1,
> + .base.cra_ctxsize = sizeof(struct chacha_ctx),
> + .base.cra_module = THIS_MODULE,
> +
> + .min_keysize = CHACHA_KEY_SIZE,
> + .max_keysize = CHACHA_KEY_SIZE,
> + .ivsize = CHACHA_IV_SIZE,
> + .chunksize = CHACHA_BLOCK_SIZE,
> + .walksize = 4 * CHACHA_BLOCK_SIZE,
> + .setkey = crypto_chacha20_setkey,
> + .encrypt = chacha20_neon,
> + .decrypt = chacha20_neon,
> + }, {
> + .base.cra_name = "xchacha20",
> + .base.cra_driver_name = "xchacha20-neon",
> + .base.cra_priority = 300,
> + .base.cra_blocksize = 1,
> + .base.cra_ctxsize = sizeof(struct chacha_ctx),
> + .base.cra_module = THIS_MODULE,
> +
> + .min_keysize = CHACHA_KEY_SIZE,
> + .max_keysize = CHACHA_KEY_SIZE,
> + .ivsize = XCHACHA_IV_SIZE,
> + .chunksize = CHACHA_BLOCK_SIZE,
> + .walksize = 4 * CHACHA_BLOCK_SIZE,
> + .setkey = crypto_chacha20_setkey,
> + .encrypt = xchacha20_neon,
> + .decrypt = xchacha20_neon,
> + }
> };
>
> static int __init chacha20_simd_mod_init(void)
> @@ -111,12 +159,12 @@ static int __init chacha20_simd_mod_init(void)
> if (!(elf_hwcap & HWCAP_NEON))
> return -ENODEV;
>
> - return crypto_register_skcipher(&alg);
> + return crypto_register_skciphers(algs, ARRAY_SIZE(algs));
> }
>
> static void __exit chacha20_simd_mod_fini(void)
> {
> - crypto_unregister_skcipher(&alg);
> + crypto_unregister_skciphers(algs, ARRAY_SIZE(algs));
> }
>
> module_init(chacha20_simd_mod_init);
> @@ -125,3 +173,6 @@ module_exit(chacha20_simd_mod_fini);
> MODULE_AUTHOR("Ard Biesheuvel <[email protected]>");
> MODULE_LICENSE("GPL v2");
> MODULE_ALIAS_CRYPTO("chacha20");
> +MODULE_ALIAS_CRYPTO("chacha20-neon");
> +MODULE_ALIAS_CRYPTO("xchacha20");
> +MODULE_ALIAS_CRYPTO("xchacha20-neon");
> --
> 2.19.1.930.g4563a0d9d0-goog
>
On Mon, Nov 19, 2018 at 01:24:51PM +0800, Herbert Xu wrote:
>
> In response to Martin's patch-set which I merged last week, I think
> here is quick way out for the zinc interface.
>
> Going through the past zinc discussions it would appear that
> everybody is quite happy with the zinc interface per se. The
> most contentious areas are in fact the algorithm implementations
> under zinc, as well as the conversion of the crypto API algorithms
> over to using the zinc interface (e.g., you can no longer access
> specific implementations).
>
> My proposal is to merge the zinc interface as is, but to invert
> how we place the algorithm implementations. IOW the implementations
> should stay where they are now, with in the crypto API. However,
> we will provide direct access to them for zinc without going through
> the crypto API. IOW we'll just export the functions directly.
>
> Here is a proof of concept patch to do it for chacha20-generic.
> It basically replaces patch 3 in the October zinc patch series.
> Actually this patch also exports the arm/x86 chacha20 functions
> too so they are ready for use by zinc.
>
> If everyone is happy with this then we can immediately add the
> zinc interface and expose the existing crypto API algorithms
> through it. This would allow wireguard to be merged right away.
>
> In parallel, the discussions over replacing the implementations
> underneath can carry on without stalling the whole project.
>
> PS This patch is totally untested :)
Here is an updated version demonstrating how we could access the
accelerated versions of chacha20. It also includes a final patch
to deposit the new zinc version of x86-64 chacha20 into
arch/x86/crypto where it can be used by both the crypto API as well
as zinc.
The key differences between this and the last zinc patch series:
1. The crypto API algorithms remain individually accessible, this
is crucial as these algorithm names are exported to user-space so
changing the names to foo-zinc is not going to work.
2. The arch-specific algorithm code lives in their own module rather
than in a monolithic module.
Cheers,
--
Email: Herbert Xu <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
Hi Eric,
> This patchset adds Adiantum to Linux's crypto API, focusing on
> generic and ARM32 implementations. Patches 1-9 add support for
> XChaCha20 and XChaCha12. Patches 10-13 add NHPoly1305 support,
> needed for Adiantum hashing. Patch 14 adds Adiantum support as a
> skcipher template.
Nice work. I did a quick review only, but you may add my
Acked-by: Martin Willi <[email protected]>
for patches 1-5, 10 and 11.
Thanks,
Martin
On 6 November 2018 at 00:25, Eric Biggers <[email protected]> wrote:
> From: Eric Biggers <[email protected]>
>
> In preparation for adding XChaCha12 support, rename/refactor the NEON
> implementation of ChaCha20 to support different numbers of rounds.
>
> Signed-off-by: Eric Biggers <[email protected]>
Reviewed-by: Ard Biesheuvel <[email protected]>
> ---
> arch/arm/crypto/Makefile | 4 +-
> ...hacha20-neon-core.S => chacha-neon-core.S} | 44 ++++++++-------
> ...hacha20-neon-glue.c => chacha-neon-glue.c} | 56 ++++++++++---------
> 3 files changed, 56 insertions(+), 48 deletions(-)
> rename arch/arm/crypto/{chacha20-neon-core.S => chacha-neon-core.S} (94%)
> rename arch/arm/crypto/{chacha20-neon-glue.c => chacha-neon-glue.c} (72%)
>
> diff --git a/arch/arm/crypto/Makefile b/arch/arm/crypto/Makefile
> index bd5bceef0605..005482ff9504 100644
> --- a/arch/arm/crypto/Makefile
> +++ b/arch/arm/crypto/Makefile
> @@ -9,7 +9,7 @@ obj-$(CONFIG_CRYPTO_SHA1_ARM) += sha1-arm.o
> obj-$(CONFIG_CRYPTO_SHA1_ARM_NEON) += sha1-arm-neon.o
> obj-$(CONFIG_CRYPTO_SHA256_ARM) += sha256-arm.o
> obj-$(CONFIG_CRYPTO_SHA512_ARM) += sha512-arm.o
> -obj-$(CONFIG_CRYPTO_CHACHA20_NEON) += chacha20-neon.o
> +obj-$(CONFIG_CRYPTO_CHACHA20_NEON) += chacha-neon.o
>
> ce-obj-$(CONFIG_CRYPTO_AES_ARM_CE) += aes-arm-ce.o
> ce-obj-$(CONFIG_CRYPTO_SHA1_ARM_CE) += sha1-arm-ce.o
> @@ -52,7 +52,7 @@ aes-arm-ce-y := aes-ce-core.o aes-ce-glue.o
> ghash-arm-ce-y := ghash-ce-core.o ghash-ce-glue.o
> crct10dif-arm-ce-y := crct10dif-ce-core.o crct10dif-ce-glue.o
> crc32-arm-ce-y:= crc32-ce-core.o crc32-ce-glue.o
> -chacha20-neon-y := chacha20-neon-core.o chacha20-neon-glue.o
> +chacha-neon-y := chacha-neon-core.o chacha-neon-glue.o
>
> ifdef REGENERATE_ARM_CRYPTO
> quiet_cmd_perl = PERL $@
> diff --git a/arch/arm/crypto/chacha20-neon-core.S b/arch/arm/crypto/chacha-neon-core.S
> similarity index 94%
> rename from arch/arm/crypto/chacha20-neon-core.S
> rename to arch/arm/crypto/chacha-neon-core.S
> index 2335e5055d2b..eb22926d4912 100644
> --- a/arch/arm/crypto/chacha20-neon-core.S
> +++ b/arch/arm/crypto/chacha-neon-core.S
> @@ -1,5 +1,5 @@
> /*
> - * ChaCha20 256-bit cipher algorithm, RFC7539, ARM NEON functions
> + * ChaCha/XChaCha NEON helper functions
> *
> * Copyright (C) 2016 Linaro, Ltd. <[email protected]>
> *
> @@ -27,9 +27,9 @@
> * (d) vtbl.8 + vtbl.8 (multiple of 8 bits rotations only,
> * needs index vector)
> *
> - * ChaCha20 has 16, 12, 8, and 7-bit rotations. For the 12 and 7-bit
> - * rotations, the only choices are (a) and (b). We use (a) since it takes
> - * two-thirds the cycles of (b) on both Cortex-A7 and Cortex-A53.
> + * ChaCha has 16, 12, 8, and 7-bit rotations. For the 12 and 7-bit rotations,
> + * the only choices are (a) and (b). We use (a) since it takes two-thirds the
> + * cycles of (b) on both Cortex-A7 and Cortex-A53.
> *
> * For the 16-bit rotation, we use vrev32.16 since it's consistently fastest
> * and doesn't need a temporary register.
> @@ -53,18 +53,19 @@
> .align 5
>
> /*
> - * chacha20_permute - permute one block
> + * chacha_permute - permute one block
> *
> * Permute one 64-byte block where the state matrix is stored in the four NEON
> * registers q0-q3. It performs matrix operations on four words in parallel,
> * but requires shuffling to rearrange the words after each round.
> *
> + * The round count is given in r3.
> + *
> * Clobbers: r3, ip, q4-q5
> */
> -chacha20_permute:
> +chacha_permute:
>
> adr ip, .Lrol8_table
> - mov r3, #10
> vld1.8 {d10}, [ip, :64]
>
> .Ldoubleround:
> @@ -128,16 +129,17 @@ chacha20_permute:
> // x3 = shuffle32(x3, MASK(0, 3, 2, 1))
> vext.8 q3, q3, q3, #4
>
> - subs r3, r3, #1
> + subs r3, r3, #2
> bne .Ldoubleround
>
> bx lr
> -ENDPROC(chacha20_permute)
> +ENDPROC(chacha_permute)
>
> -ENTRY(chacha20_block_xor_neon)
> +ENTRY(chacha_block_xor_neon)
> // r0: Input state matrix, s
> // r1: 1 data block output, o
> // r2: 1 data block input, i
> + // r3: nrounds
> push {lr}
>
> // x0..3 = s0..3
> @@ -150,7 +152,7 @@ ENTRY(chacha20_block_xor_neon)
> vmov q10, q2
> vmov q11, q3
>
> - bl chacha20_permute
> + bl chacha_permute
>
> add ip, r2, #0x20
> vld1.8 {q4-q5}, [r2]
> @@ -177,30 +179,32 @@ ENTRY(chacha20_block_xor_neon)
> vst1.8 {q2-q3}, [ip]
>
> pop {pc}
> -ENDPROC(chacha20_block_xor_neon)
> +ENDPROC(chacha_block_xor_neon)
>
> -ENTRY(hchacha20_block_neon)
> +ENTRY(hchacha_block_neon)
> // r0: Input state matrix, s
> // r1: output (8 32-bit words)
> + // r2: nrounds
> push {lr}
>
> vld1.32 {q0-q1}, [r0]!
> vld1.32 {q2-q3}, [r0]
>
> - bl chacha20_permute
> + mov r3, r2
> + bl chacha_permute
>
> vst1.32 {q0}, [r1]!
> vst1.32 {q3}, [r1]
>
> pop {pc}
> -ENDPROC(hchacha20_block_neon)
> +ENDPROC(hchacha_block_neon)
>
> .align 4
> .Lctrinc: .word 0, 1, 2, 3
> .Lrol8_table: .byte 3, 0, 1, 2, 7, 4, 5, 6
>
> .align 5
> -ENTRY(chacha20_4block_xor_neon)
> +ENTRY(chacha_4block_xor_neon)
> push {r4-r5}
> mov r4, sp // preserve the stack pointer
> sub ip, sp, #0x20 // allocate a 32 byte buffer
> @@ -210,9 +214,10 @@ ENTRY(chacha20_4block_xor_neon)
> // r0: Input state matrix, s
> // r1: 4 data blocks output, o
> // r2: 4 data blocks input, i
> + // r3: nrounds
>
> //
> - // This function encrypts four consecutive ChaCha20 blocks by loading
> + // This function encrypts four consecutive ChaCha blocks by loading
> // the state matrix in NEON registers four times. The algorithm performs
> // each operation on the corresponding word of each state matrix, hence
> // requires no word shuffling. The words are re-interleaved before the
> @@ -245,7 +250,6 @@ ENTRY(chacha20_4block_xor_neon)
> vdup.32 q0, d0[0]
>
> adr ip, .Lrol8_table
> - mov r3, #10
> b 1f
>
> .Ldoubleround4:
> @@ -443,7 +447,7 @@ ENTRY(chacha20_4block_xor_neon)
> vsri.u32 q5, q8, #25
> vsri.u32 q6, q9, #25
>
> - subs r3, r3, #1
> + subs r3, r3, #2
> bne .Ldoubleround4
>
> // x0..7[0-3] are in q0-q7, x10..15[0-3] are in q10-q15.
> @@ -553,4 +557,4 @@ ENTRY(chacha20_4block_xor_neon)
>
> pop {r4-r5}
> bx lr
> -ENDPROC(chacha20_4block_xor_neon)
> +ENDPROC(chacha_4block_xor_neon)
> diff --git a/arch/arm/crypto/chacha20-neon-glue.c b/arch/arm/crypto/chacha-neon-glue.c
> similarity index 72%
> rename from arch/arm/crypto/chacha20-neon-glue.c
> rename to arch/arm/crypto/chacha-neon-glue.c
> index f2d3b0f70a8d..385557d38634 100644
> --- a/arch/arm/crypto/chacha20-neon-glue.c
> +++ b/arch/arm/crypto/chacha-neon-glue.c
> @@ -28,24 +28,26 @@
> #include <asm/neon.h>
> #include <asm/simd.h>
>
> -asmlinkage void chacha20_block_xor_neon(u32 *state, u8 *dst, const u8 *src);
> -asmlinkage void chacha20_4block_xor_neon(u32 *state, u8 *dst, const u8 *src);
> -asmlinkage void hchacha20_block_neon(const u32 *state, u32 *out);
> -
> -static void chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
> - unsigned int bytes)
> +asmlinkage void chacha_block_xor_neon(const u32 *state, u8 *dst, const u8 *src,
> + int nrounds);
> +asmlinkage void chacha_4block_xor_neon(const u32 *state, u8 *dst, const u8 *src,
> + int nrounds);
> +asmlinkage void hchacha_block_neon(const u32 *state, u32 *out, int nrounds);
> +
> +static void chacha_doneon(u32 *state, u8 *dst, const u8 *src,
> + unsigned int bytes, int nrounds)
> {
> u8 buf[CHACHA_BLOCK_SIZE];
>
> while (bytes >= CHACHA_BLOCK_SIZE * 4) {
> - chacha20_4block_xor_neon(state, dst, src);
> + chacha_4block_xor_neon(state, dst, src, nrounds);
> bytes -= CHACHA_BLOCK_SIZE * 4;
> src += CHACHA_BLOCK_SIZE * 4;
> dst += CHACHA_BLOCK_SIZE * 4;
> state[12] += 4;
> }
> while (bytes >= CHACHA_BLOCK_SIZE) {
> - chacha20_block_xor_neon(state, dst, src);
> + chacha_block_xor_neon(state, dst, src, nrounds);
> bytes -= CHACHA_BLOCK_SIZE;
> src += CHACHA_BLOCK_SIZE;
> dst += CHACHA_BLOCK_SIZE;
> @@ -53,13 +55,13 @@ static void chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
> }
> if (bytes) {
> memcpy(buf, src, bytes);
> - chacha20_block_xor_neon(state, buf, buf);
> + chacha_block_xor_neon(state, buf, buf, nrounds);
> memcpy(dst, buf, bytes);
> }
> }
>
> -static int chacha20_neon_stream_xor(struct skcipher_request *req,
> - struct chacha_ctx *ctx, u8 *iv)
> +static int chacha_neon_stream_xor(struct skcipher_request *req,
> + struct chacha_ctx *ctx, u8 *iv)
> {
> struct skcipher_walk walk;
> u32 state[16];
> @@ -76,8 +78,8 @@ static int chacha20_neon_stream_xor(struct skcipher_request *req,
> nbytes = round_down(nbytes, walk.stride);
>
> kernel_neon_begin();
> - chacha20_doneon(state, walk.dst.virt.addr, walk.src.virt.addr,
> - nbytes);
> + chacha_doneon(state, walk.dst.virt.addr, walk.src.virt.addr,
> + nbytes, ctx->nrounds);
> kernel_neon_end();
> err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
> }
> @@ -85,7 +87,7 @@ static int chacha20_neon_stream_xor(struct skcipher_request *req,
> return err;
> }
>
> -static int chacha20_neon(struct skcipher_request *req)
> +static int chacha_neon(struct skcipher_request *req)
> {
> struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
> struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
> @@ -93,10 +95,10 @@ static int chacha20_neon(struct skcipher_request *req)
> if (req->cryptlen <= CHACHA_BLOCK_SIZE || !may_use_simd())
> return crypto_chacha_crypt(req);
>
> - return chacha20_neon_stream_xor(req, ctx, req->iv);
> + return chacha_neon_stream_xor(req, ctx, req->iv);
> }
>
> -static int xchacha20_neon(struct skcipher_request *req)
> +static int xchacha_neon(struct skcipher_request *req)
> {
> struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
> struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
> @@ -110,12 +112,13 @@ static int xchacha20_neon(struct skcipher_request *req)
> crypto_chacha_init(state, ctx, req->iv);
>
> kernel_neon_begin();
> - hchacha20_block_neon(state, subctx.key);
> + hchacha_block_neon(state, subctx.key, ctx->nrounds);
> kernel_neon_end();
> + subctx.nrounds = ctx->nrounds;
>
> memcpy(&real_iv[0], req->iv + 24, 8);
> memcpy(&real_iv[8], req->iv + 16, 8);
> - return chacha20_neon_stream_xor(req, &subctx, real_iv);
> + return chacha_neon_stream_xor(req, &subctx, real_iv);
> }
>
> static struct skcipher_alg algs[] = {
> @@ -133,8 +136,8 @@ static struct skcipher_alg algs[] = {
> .chunksize = CHACHA_BLOCK_SIZE,
> .walksize = 4 * CHACHA_BLOCK_SIZE,
> .setkey = crypto_chacha20_setkey,
> - .encrypt = chacha20_neon,
> - .decrypt = chacha20_neon,
> + .encrypt = chacha_neon,
> + .decrypt = chacha_neon,
> }, {
> .base.cra_name = "xchacha20",
> .base.cra_driver_name = "xchacha20-neon",
> @@ -149,12 +152,12 @@ static struct skcipher_alg algs[] = {
> .chunksize = CHACHA_BLOCK_SIZE,
> .walksize = 4 * CHACHA_BLOCK_SIZE,
> .setkey = crypto_chacha20_setkey,
> - .encrypt = xchacha20_neon,
> - .decrypt = xchacha20_neon,
> + .encrypt = xchacha_neon,
> + .decrypt = xchacha_neon,
> }
> };
>
> -static int __init chacha20_simd_mod_init(void)
> +static int __init chacha_simd_mod_init(void)
> {
> if (!(elf_hwcap & HWCAP_NEON))
> return -ENODEV;
> @@ -162,14 +165,15 @@ static int __init chacha20_simd_mod_init(void)
> return crypto_register_skciphers(algs, ARRAY_SIZE(algs));
> }
>
> -static void __exit chacha20_simd_mod_fini(void)
> +static void __exit chacha_simd_mod_fini(void)
> {
> crypto_unregister_skciphers(algs, ARRAY_SIZE(algs));
> }
>
> -module_init(chacha20_simd_mod_init);
> -module_exit(chacha20_simd_mod_fini);
> +module_init(chacha_simd_mod_init);
> +module_exit(chacha_simd_mod_fini);
>
> +MODULE_DESCRIPTION("ChaCha and XChaCha stream ciphers (NEON accelerated)");
> MODULE_AUTHOR("Ard Biesheuvel <[email protected]>");
> MODULE_LICENSE("GPL v2");
> MODULE_ALIAS_CRYPTO("chacha20");
> --
> 2.19.1.930.g4563a0d9d0-goog
>
On 6 November 2018 at 00:25, Eric Biggers <[email protected]> wrote:
> From: Eric Biggers <[email protected]>
>
> In preparation for exposing a low-level Poly1305 API which implements
> the ε-almost-∆-universal (εA∆U) hash function underlying the Poly1305
> MAC and supports block-aligned inputs only, create structures
> poly1305_key and poly1305_state which hold the limbs of the Poly1305
> "r" key and accumulator, respectively.
>
> Signed-off-by: Eric Biggers <[email protected]>
> ---
> arch/x86/crypto/poly1305_glue.c | 20 +++++++------
> crypto/poly1305_generic.c | 52 ++++++++++++++++-----------------
> include/crypto/poly1305.h | 12 ++++++--
> 3 files changed, 47 insertions(+), 37 deletions(-)
>
> diff --git a/arch/x86/crypto/poly1305_glue.c b/arch/x86/crypto/poly1305_glue.c
> index f012b7e28ad1..88cc01506c84 100644
> --- a/arch/x86/crypto/poly1305_glue.c
> +++ b/arch/x86/crypto/poly1305_glue.c
> @@ -83,35 +83,37 @@ static unsigned int poly1305_simd_blocks(struct poly1305_desc_ctx *dctx,
> if (poly1305_use_avx2 && srclen >= POLY1305_BLOCK_SIZE * 4) {
> if (unlikely(!sctx->wset)) {
> if (!sctx->uset) {
> - memcpy(sctx->u, dctx->r, sizeof(sctx->u));
> - poly1305_simd_mult(sctx->u, dctx->r);
> + memcpy(sctx->u, dctx->r.r, sizeof(sctx->u));
> + poly1305_simd_mult(sctx->u, dctx->r.r);
> sctx->uset = true;
> }
> memcpy(sctx->u + 5, sctx->u, sizeof(sctx->u));
> - poly1305_simd_mult(sctx->u + 5, dctx->r);
> + poly1305_simd_mult(sctx->u + 5, dctx->r.r);
> memcpy(sctx->u + 10, sctx->u + 5, sizeof(sctx->u));
> - poly1305_simd_mult(sctx->u + 10, dctx->r);
> + poly1305_simd_mult(sctx->u + 10, dctx->r.r);
> sctx->wset = true;
> }
> blocks = srclen / (POLY1305_BLOCK_SIZE * 4);
> - poly1305_4block_avx2(dctx->h, src, dctx->r, blocks, sctx->u);
> + poly1305_4block_avx2(dctx->h.h, src, dctx->r.r, blocks,
> + sctx->u);
> src += POLY1305_BLOCK_SIZE * 4 * blocks;
> srclen -= POLY1305_BLOCK_SIZE * 4 * blocks;
> }
> #endif
> if (likely(srclen >= POLY1305_BLOCK_SIZE * 2)) {
> if (unlikely(!sctx->uset)) {
> - memcpy(sctx->u, dctx->r, sizeof(sctx->u));
> - poly1305_simd_mult(sctx->u, dctx->r);
> + memcpy(sctx->u, dctx->r.r, sizeof(sctx->u));
> + poly1305_simd_mult(sctx->u, dctx->r.r);
> sctx->uset = true;
> }
> blocks = srclen / (POLY1305_BLOCK_SIZE * 2);
> - poly1305_2block_sse2(dctx->h, src, dctx->r, blocks, sctx->u);
> + poly1305_2block_sse2(dctx->h.h, src, dctx->r.r, blocks,
> + sctx->u);
> src += POLY1305_BLOCK_SIZE * 2 * blocks;
> srclen -= POLY1305_BLOCK_SIZE * 2 * blocks;
> }
> if (srclen >= POLY1305_BLOCK_SIZE) {
> - poly1305_block_sse2(dctx->h, src, dctx->r, 1);
> + poly1305_block_sse2(dctx->h.h, src, dctx->r.r, 1);
> srclen -= POLY1305_BLOCK_SIZE;
> }
> return srclen;
> diff --git a/crypto/poly1305_generic.c b/crypto/poly1305_generic.c
> index 47d3a6b83931..a23173f351b7 100644
> --- a/crypto/poly1305_generic.c
> +++ b/crypto/poly1305_generic.c
> @@ -38,7 +38,7 @@ int crypto_poly1305_init(struct shash_desc *desc)
> {
> struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
>
> - memset(dctx->h, 0, sizeof(dctx->h));
> + memset(dctx->h.h, 0, sizeof(dctx->h.h));
> dctx->buflen = 0;
> dctx->rset = false;
> dctx->sset = false;
> @@ -50,11 +50,11 @@ EXPORT_SYMBOL_GPL(crypto_poly1305_init);
> static void poly1305_setrkey(struct poly1305_desc_ctx *dctx, const u8 *key)
> {
> /* r &= 0xffffffc0ffffffc0ffffffc0fffffff */
> - dctx->r[0] = (get_unaligned_le32(key + 0) >> 0) & 0x3ffffff;
> - dctx->r[1] = (get_unaligned_le32(key + 3) >> 2) & 0x3ffff03;
> - dctx->r[2] = (get_unaligned_le32(key + 6) >> 4) & 0x3ffc0ff;
> - dctx->r[3] = (get_unaligned_le32(key + 9) >> 6) & 0x3f03fff;
> - dctx->r[4] = (get_unaligned_le32(key + 12) >> 8) & 0x00fffff;
> + dctx->r.r[0] = (get_unaligned_le32(key + 0) >> 0) & 0x3ffffff;
> + dctx->r.r[1] = (get_unaligned_le32(key + 3) >> 2) & 0x3ffff03;
> + dctx->r.r[2] = (get_unaligned_le32(key + 6) >> 4) & 0x3ffc0ff;
> + dctx->r.r[3] = (get_unaligned_le32(key + 9) >> 6) & 0x3f03fff;
> + dctx->r.r[4] = (get_unaligned_le32(key + 12) >> 8) & 0x00fffff;
> }
>
> static void poly1305_setskey(struct poly1305_desc_ctx *dctx, const u8 *key)
> @@ -107,22 +107,22 @@ static unsigned int poly1305_blocks(struct poly1305_desc_ctx *dctx,
> srclen = datalen;
> }
>
> - r0 = dctx->r[0];
> - r1 = dctx->r[1];
> - r2 = dctx->r[2];
> - r3 = dctx->r[3];
> - r4 = dctx->r[4];
> + r0 = dctx->r.r[0];
> + r1 = dctx->r.r[1];
> + r2 = dctx->r.r[2];
> + r3 = dctx->r.r[3];
> + r4 = dctx->r.r[4];
>
> s1 = r1 * 5;
> s2 = r2 * 5;
> s3 = r3 * 5;
> s4 = r4 * 5;
>
> - h0 = dctx->h[0];
> - h1 = dctx->h[1];
> - h2 = dctx->h[2];
> - h3 = dctx->h[3];
> - h4 = dctx->h[4];
> + h0 = dctx->h.h[0];
> + h1 = dctx->h.h[1];
> + h2 = dctx->h.h[2];
> + h3 = dctx->h.h[3];
> + h4 = dctx->h.h[4];
>
> while (likely(srclen >= POLY1305_BLOCK_SIZE)) {
>
> @@ -157,11 +157,11 @@ static unsigned int poly1305_blocks(struct poly1305_desc_ctx *dctx,
> srclen -= POLY1305_BLOCK_SIZE;
> }
>
> - dctx->h[0] = h0;
> - dctx->h[1] = h1;
> - dctx->h[2] = h2;
> - dctx->h[3] = h3;
> - dctx->h[4] = h4;
> + dctx->h.h[0] = h0;
> + dctx->h.h[1] = h1;
> + dctx->h.h[2] = h2;
> + dctx->h.h[3] = h3;
> + dctx->h.h[4] = h4;
>
> return srclen;
> }
> @@ -220,11 +220,11 @@ int crypto_poly1305_final(struct shash_desc *desc, u8 *dst)
> }
>
> /* fully carry h */
> - h0 = dctx->h[0];
> - h1 = dctx->h[1];
> - h2 = dctx->h[2];
> - h3 = dctx->h[3];
> - h4 = dctx->h[4];
> + h0 = dctx->h.h[0];
> + h1 = dctx->h.h[1];
> + h2 = dctx->h.h[2];
> + h3 = dctx->h.h[3];
> + h4 = dctx->h.h[4];
>
> h2 += (h1 >> 26); h1 = h1 & 0x3ffffff;
> h3 += (h2 >> 26); h2 = h2 & 0x3ffffff;
> diff --git a/include/crypto/poly1305.h b/include/crypto/poly1305.h
> index f718a19da82f..493244c46664 100644
> --- a/include/crypto/poly1305.h
> +++ b/include/crypto/poly1305.h
> @@ -13,13 +13,21 @@
> #define POLY1305_KEY_SIZE 32
> #define POLY1305_DIGEST_SIZE 16
>
> +struct poly1305_key {
> + u32 r[5]; /* key, base 2^26 */
> +};
> +
> +struct poly1305_state {
> + u32 h[5]; /* accumulator, base 2^26 */
> +};
> +
Sorry to bikeshed, but wouldn't it make more sense to have single definition
struct poly1305_val {
u32 v[5]; /* base 2^26 */
};
and have 'key' and 'accum[ulator]' fields of type struct poly1305_val
in the struct below?
> struct poly1305_desc_ctx {
> /* key */
> - u32 r[5];
> + struct poly1305_key r;
> /* finalize key */
> u32 s[4];
> /* accumulator */
> - u32 h[5];
> + struct poly1305_state h;
> /* partial buffer */
> u8 buf[POLY1305_BLOCK_SIZE];
> /* bytes used in partial buffer */
> --
> 2.19.1.930.g4563a0d9d0-goog
>
From: Eric Biggers <[email protected]>
Refactor the unkeyed permutation part of chacha20_block() into its own
function, then add hchacha20_block() which is the ChaCha equivalent of
HSalsa20 and is an intermediate step towards XChaCha20 (see
https://cr.yp.to/snuffle/xsalsa-20081128.pdf). HChaCha20 skips the
final addition of the initial state, and outputs only certain words of
the state. It should not be used for streaming directly.
Reviewed-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Eric Biggers <[email protected]>
---
include/crypto/chacha20.h | 2 ++
lib/chacha20.c | 50 ++++++++++++++++++++++++++++++++++-----
2 files changed, 46 insertions(+), 6 deletions(-)
diff --git a/include/crypto/chacha20.h b/include/crypto/chacha20.h
index f76302d99e2b..fbec4e6a8789 100644
--- a/include/crypto/chacha20.h
+++ b/include/crypto/chacha20.h
@@ -19,6 +19,8 @@ struct chacha20_ctx {
};
void chacha20_block(u32 *state, u8 *stream);
+void hchacha20_block(const u32 *in, u32 *out);
+
void crypto_chacha20_init(u32 *state, struct chacha20_ctx *ctx, u8 *iv);
int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keysize);
diff --git a/lib/chacha20.c b/lib/chacha20.c
index d907fec6a9ed..6a484e16171d 100644
--- a/lib/chacha20.c
+++ b/lib/chacha20.c
@@ -1,5 +1,5 @@
/*
- * ChaCha20 256-bit cipher algorithm, RFC7539
+ * The "hash function" used as the core of the ChaCha20 stream cipher (RFC7539)
*
* Copyright (C) 2015 Martin Willi
*
@@ -16,14 +16,10 @@
#include <asm/unaligned.h>
#include <crypto/chacha20.h>
-void chacha20_block(u32 *state, u8 *stream)
+static void chacha20_permute(u32 *x)
{
- u32 x[16];
int i;
- for (i = 0; i < ARRAY_SIZE(x); i++)
- x[i] = state[i];
-
for (i = 0; i < 20; i += 2) {
x[0] += x[4]; x[12] = rol32(x[12] ^ x[0], 16);
x[1] += x[5]; x[13] = rol32(x[13] ^ x[1], 16);
@@ -65,6 +61,25 @@ void chacha20_block(u32 *state, u8 *stream)
x[8] += x[13]; x[7] = rol32(x[7] ^ x[8], 7);
x[9] += x[14]; x[4] = rol32(x[4] ^ x[9], 7);
}
+}
+
+/**
+ * chacha20_block - generate one keystream block and increment block counter
+ * @state: input state matrix (16 32-bit words)
+ * @stream: output keystream block (64 bytes)
+ *
+ * This is the ChaCha20 core, a function from 64-byte strings to 64-byte
+ * strings. The caller has already converted the endianness of the input. This
+ * function also handles incrementing the block counter in the input matrix.
+ */
+void chacha20_block(u32 *state, u8 *stream)
+{
+ u32 x[16];
+ int i;
+
+ memcpy(x, state, 64);
+
+ chacha20_permute(x);
for (i = 0; i < ARRAY_SIZE(x); i++)
put_unaligned_le32(x[i] + state[i], &stream[i * sizeof(u32)]);
@@ -72,3 +87,26 @@ void chacha20_block(u32 *state, u8 *stream)
state[12]++;
}
EXPORT_SYMBOL(chacha20_block);
+
+/**
+ * hchacha20_block - abbreviated ChaCha20 core, for XChaCha20
+ * @in: input state matrix (16 32-bit words)
+ * @out: output (8 32-bit words)
+ *
+ * HChaCha20 is the ChaCha equivalent of HSalsa20 and is an intermediate step
+ * towards XChaCha20 (see https://cr.yp.to/snuffle/xsalsa-20081128.pdf).
+ * HChaCha20 skips the final addition of the initial state, and outputs only
+ * certain words of the state. It should not be used for streaming directly.
+ */
+void hchacha20_block(const u32 *in, u32 *out)
+{
+ u32 x[16];
+
+ memcpy(x, in, 64);
+
+ chacha20_permute(x);
+
+ memcpy(&out[0], &x[0], 16);
+ memcpy(&out[4], &x[12], 16);
+}
+EXPORT_SYMBOL(hchacha20_block);
--
2.19.1.930.g4563a0d9d0-goog
On Tue, 20 Nov 2018 at 07:02, Herbert Xu <[email protected]> wrote:
>
> On Mon, Nov 19, 2018 at 01:24:51PM +0800, Herbert Xu wrote:
> >
> > In response to Martin's patch-set which I merged last week, I think
> > here is quick way out for the zinc interface.
> >
> > Going through the past zinc discussions it would appear that
> > everybody is quite happy with the zinc interface per se. The
> > most contentious areas are in fact the algorithm implementations
> > under zinc, as well as the conversion of the crypto API algorithms
> > over to using the zinc interface (e.g., you can no longer access
> > specific implementations).
> >
> > My proposal is to merge the zinc interface as is, but to invert
> > how we place the algorithm implementations. IOW the implementations
> > should stay where they are now, with in the crypto API. However,
> > we will provide direct access to them for zinc without going through
> > the crypto API. IOW we'll just export the functions directly.
> >
> > Here is a proof of concept patch to do it for chacha20-generic.
> > It basically replaces patch 3 in the October zinc patch series.
> > Actually this patch also exports the arm/x86 chacha20 functions
> > too so they are ready for use by zinc.
> >
> > If everyone is happy with this then we can immediately add the
> > zinc interface and expose the existing crypto API algorithms
> > through it. This would allow wireguard to be merged right away.
> >
> > In parallel, the discussions over replacing the implementations
> > underneath can carry on without stalling the whole project.
> >
> > PS This patch is totally untested :)
>
> Here is an updated version demonstrating how we could access the
> accelerated versions of chacha20. It also includes a final patch
> to deposit the new zinc version of x86-64 chacha20 into
> arch/x86/crypto where it can be used by both the crypto API as well
> as zinc.
>
> The key differences between this and the last zinc patch series:
>
> 1. The crypto API algorithms remain individually accessible, this
> is crucial as these algorithm names are exported to user-space so
> changing the names to foo-zinc is not going to work.
>
Are you saying user space may use names like "ctr-aes-neon" directly
rather than "ctr(aes)" for any implementation of the mode?
If so, that is highly unfortunate, since it means we'd be breaking
user space by wrapping a crypto library function with its own arch
specific specializations into a generic crypto API wrapper.
Note that I think that using AF_ALG to access software crypto routines
(as opposed to accelerators) is rather pointless to begin with, but if
it permits that today than we're stuck with it.
> 2. The arch-specific algorithm code lives in their own module rather
> than in a monolithic module.
>
This is one of the remaining issues I have with Zinc. However, modulo
the above concerns, I think it does make sense to have a separate
function API for synchronous software routines below the current
crypto API. What I don't want is a separate Zinc kingdom with a
different name, different maintainers and going through a different
tree, and with its own approach to test vectors, arch specific code,
etc etc
On Tue, Nov 20, 2018 at 12:15:17AM +0100, Jason A. Donenfeld wrote:
> Hi Eric,
>
> On Mon, Nov 19, 2018 at 11:54 PM Eric Biggers <[email protected]> wrote:
> > Will v9 include a documentation file for Zinc in Documentation/crypto/?
> > That's been suggested several times.
>
> I had started writing that there, but then thought that the requested
> information could go in the commit message instead. But I'm guessing
> you're asking again now because you poked into the repo and didn't
> find the Documentation/, so presumably you still want it. I can
> reorganize the presentation of that to be more suitable for
> Documentation/, and I'll have that for v9.
>
It's much better to have the documentation in a permanent location.
> > I'd still prefer to see the conversion patches included. Skipping them would be
> > kicking the can down the road and avoiding issues that will need to be addressed
> > anyway. Like you, I don't want a "half-baked concoction that will be maybe
> > possibly be replaced 'later'" :-)
>
> Okay, fair enough. Will do.
>
> > Either way though, it would make things much easier if you at least named the
> > files, structures, constants, etc. "ChaCha" rather than "ChaCha20" from the
> > start where appropriate. For an example, see the commit "crypto: chacha -
> > prepare for supporting non-20-round variants" on my "adiantum-zinc" branch:
> > https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git/commit/?h=adiantum-zinc&id=754af8d7d39f31238114426e39786c84d7cc0f98
> > Then the actual introduction of the 12-round variant is much less noisy.
>
> That's a good idea. I'll do it like that. I'll likely order it as what
> we have now (renamed to omit the 20), and then put the 12 stuff on top
> of that, so it's easier to see what's changed in the process. I
> noticed in that branch, you didn't port the assembly to support fewer
> rounds. Shall I follow suite, and then expect patches from you later
> doing that? Or were you expecting me to also port the architecture
> implementations to chacha12 as well?
>
I actually did add ChaCha12 support to most of the Zinc assembly in
"[WIP] crypto: assembly support for ChaCha12"
(https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git/commit/?h=adiantum-zinc&id=0a7787a515a977e11b680f1752b430ca1744e399).
But I skipped AVX-512 and MIPS since I didn't have a way to test those yet,
and I haven't ported the changes to your new perl scripts yet.
- Eric
On Tue, Nov 20, 2018 at 05:18:24PM +0100, Jason A. Donenfeld wrote:
>
> N'ack. As I mentioned in the last email, this really isn't okay, and
> mostly defeats the purpose of Zinc in the first place, adding
> complexity in a discombobulated half-baked way. Your proposal seems to
> be the worst of all worlds. Having talked to lots of people about the
> design of Zinc at this point to very positive reception, I'm going to
> move forward with submitting v9, once I rebase with the required
> changes for Eric's latest merge.
Do you have any actual technical reasons for rejecting this apart
from your apparent hatred of the existing crypto API?
Cheers,
--
Email: Herbert Xu <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
On Tue, Nov 20, 2018 at 05:24:41PM +0100, Jason A. Donenfeld wrote:
> On Tue, Nov 20, 2018 at 3:19 PM Herbert Xu <[email protected]> wrote:
> > Yes. In fact it's used for FIPS certification testing.
> > Sure, nobody sane should be doing it. But when it comes to
> > government certification... :)
>
> The kernel does not aim toward any FIPS certification, and we're not
> going to start bloating our designs to fulfill this. It's never been a
> goal. Maybe ask Ted to add a FIPS mode to random.c and see what
> happens... When you start arguing "because FIPS!" as your
> justification, you really hit a head scratcher.
There are crazy people who go for FIPS certification for the kernel.
That's why crypto/drbg.c exists. There is a crazy fips mode in
drivers/char/random.c which causes the kernel to panic with a 1 in
2**80 probability each time _extract_entropy is called. It's not the
default, and I have no idea if any one uses it, or if it's like the
NIST OSI mandate, which forced everyone to buy an OSI networking stack
--- and then put it on the shelf and use TCP/IP instead.
Press release from March 2018:
https://www.redhat.com/en/about/press-releases/red-hat-completes-fips-140-2-re-certification-red-hat-enterprise-linux-7
- Ted
From: Eric Biggers <[email protected]>
In preparation for adding XChaCha12 support, rename/refactor
chacha20-generic to support different numbers of rounds. The
justification for needing XChaCha12 support is explained in more detail
in the patch "crypto: chacha - add XChaCha12 support".
The only difference between ChaCha{8,12,20} are the number of rounds
itself; all other parts of the algorithm are the same. Therefore,
remove the "20" from all definitions, structures, functions, files, etc.
that will be shared by all ChaCha versions.
Also make ->setkey() store the round count in the chacha_ctx (previously
chacha20_ctx). The generic code then passes the round count through to
chacha_block(). There will be a ->setkey() function for each explicitly
allowed round count; the encrypt/decrypt functions will be the same. I
decided not to do it the opposite way (same ->setkey() function for all
round counts, with different encrypt/decrypt functions) because that
would have required more boilerplate code in architecture-specific
implementations of ChaCha and XChaCha.
Reviewed-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Eric Biggers <[email protected]>
---
arch/arm/crypto/chacha20-neon-glue.c | 40 +++----
arch/arm64/crypto/chacha20-neon-glue.c | 40 +++----
arch/x86/crypto/chacha20_glue.c | 52 ++++-----
crypto/Makefile | 2 +-
crypto/chacha20poly1305.c | 10 +-
.../{chacha20_generic.c => chacha_generic.c} | 110 ++++++++++--------
drivers/char/random.c | 51 ++++----
include/crypto/chacha.h | 46 ++++++++
include/crypto/chacha20.h | 41 -------
lib/Makefile | 2 +-
lib/{chacha20.c => chacha.c} | 43 ++++---
11 files changed, 227 insertions(+), 210 deletions(-)
rename crypto/{chacha20_generic.c => chacha_generic.c} (57%)
create mode 100644 include/crypto/chacha.h
delete mode 100644 include/crypto/chacha20.h
rename lib/{chacha20.c => chacha.c} (67%)
diff --git a/arch/arm/crypto/chacha20-neon-glue.c b/arch/arm/crypto/chacha20-neon-glue.c
index 59a7be08e80c..7386eb1c1889 100644
--- a/arch/arm/crypto/chacha20-neon-glue.c
+++ b/arch/arm/crypto/chacha20-neon-glue.c
@@ -19,7 +19,7 @@
*/
#include <crypto/algapi.h>
-#include <crypto/chacha20.h>
+#include <crypto/chacha.h>
#include <crypto/internal/skcipher.h>
#include <linux/kernel.h>
#include <linux/module.h>
@@ -34,20 +34,20 @@ asmlinkage void chacha20_4block_xor_neon(u32 *state, u8 *dst, const u8 *src);
static void chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
unsigned int bytes)
{
- u8 buf[CHACHA20_BLOCK_SIZE];
+ u8 buf[CHACHA_BLOCK_SIZE];
- while (bytes >= CHACHA20_BLOCK_SIZE * 4) {
+ while (bytes >= CHACHA_BLOCK_SIZE * 4) {
chacha20_4block_xor_neon(state, dst, src);
- bytes -= CHACHA20_BLOCK_SIZE * 4;
- src += CHACHA20_BLOCK_SIZE * 4;
- dst += CHACHA20_BLOCK_SIZE * 4;
+ bytes -= CHACHA_BLOCK_SIZE * 4;
+ src += CHACHA_BLOCK_SIZE * 4;
+ dst += CHACHA_BLOCK_SIZE * 4;
state[12] += 4;
}
- while (bytes >= CHACHA20_BLOCK_SIZE) {
+ while (bytes >= CHACHA_BLOCK_SIZE) {
chacha20_block_xor_neon(state, dst, src);
- bytes -= CHACHA20_BLOCK_SIZE;
- src += CHACHA20_BLOCK_SIZE;
- dst += CHACHA20_BLOCK_SIZE;
+ bytes -= CHACHA_BLOCK_SIZE;
+ src += CHACHA_BLOCK_SIZE;
+ dst += CHACHA_BLOCK_SIZE;
state[12]++;
}
if (bytes) {
@@ -60,17 +60,17 @@ static void chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
static int chacha20_neon(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
- struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_walk walk;
u32 state[16];
int err;
- if (req->cryptlen <= CHACHA20_BLOCK_SIZE || !may_use_simd())
- return crypto_chacha20_crypt(req);
+ if (req->cryptlen <= CHACHA_BLOCK_SIZE || !may_use_simd())
+ return crypto_chacha_crypt(req);
err = skcipher_walk_virt(&walk, req, true);
- crypto_chacha20_init(state, ctx, walk.iv);
+ crypto_chacha_init(state, ctx, walk.iv);
kernel_neon_begin();
while (walk.nbytes > 0) {
@@ -93,14 +93,14 @@ static struct skcipher_alg alg = {
.base.cra_driver_name = "chacha20-neon",
.base.cra_priority = 300,
.base.cra_blocksize = 1,
- .base.cra_ctxsize = sizeof(struct chacha20_ctx),
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
.base.cra_module = THIS_MODULE,
- .min_keysize = CHACHA20_KEY_SIZE,
- .max_keysize = CHACHA20_KEY_SIZE,
- .ivsize = CHACHA20_IV_SIZE,
- .chunksize = CHACHA20_BLOCK_SIZE,
- .walksize = 4 * CHACHA20_BLOCK_SIZE,
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = CHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .walksize = 4 * CHACHA_BLOCK_SIZE,
.setkey = crypto_chacha20_setkey,
.encrypt = chacha20_neon,
.decrypt = chacha20_neon,
diff --git a/arch/arm64/crypto/chacha20-neon-glue.c b/arch/arm64/crypto/chacha20-neon-glue.c
index 727579c93ded..96e0cfb8c3f5 100644
--- a/arch/arm64/crypto/chacha20-neon-glue.c
+++ b/arch/arm64/crypto/chacha20-neon-glue.c
@@ -19,7 +19,7 @@
*/
#include <crypto/algapi.h>
-#include <crypto/chacha20.h>
+#include <crypto/chacha.h>
#include <crypto/internal/skcipher.h>
#include <linux/kernel.h>
#include <linux/module.h>
@@ -34,15 +34,15 @@ asmlinkage void chacha20_4block_xor_neon(u32 *state, u8 *dst, const u8 *src);
static void chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
unsigned int bytes)
{
- u8 buf[CHACHA20_BLOCK_SIZE];
+ u8 buf[CHACHA_BLOCK_SIZE];
- while (bytes >= CHACHA20_BLOCK_SIZE * 4) {
+ while (bytes >= CHACHA_BLOCK_SIZE * 4) {
kernel_neon_begin();
chacha20_4block_xor_neon(state, dst, src);
kernel_neon_end();
- bytes -= CHACHA20_BLOCK_SIZE * 4;
- src += CHACHA20_BLOCK_SIZE * 4;
- dst += CHACHA20_BLOCK_SIZE * 4;
+ bytes -= CHACHA_BLOCK_SIZE * 4;
+ src += CHACHA_BLOCK_SIZE * 4;
+ dst += CHACHA_BLOCK_SIZE * 4;
state[12] += 4;
}
@@ -50,11 +50,11 @@ static void chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
return;
kernel_neon_begin();
- while (bytes >= CHACHA20_BLOCK_SIZE) {
+ while (bytes >= CHACHA_BLOCK_SIZE) {
chacha20_block_xor_neon(state, dst, src);
- bytes -= CHACHA20_BLOCK_SIZE;
- src += CHACHA20_BLOCK_SIZE;
- dst += CHACHA20_BLOCK_SIZE;
+ bytes -= CHACHA_BLOCK_SIZE;
+ src += CHACHA_BLOCK_SIZE;
+ dst += CHACHA_BLOCK_SIZE;
state[12]++;
}
if (bytes) {
@@ -68,17 +68,17 @@ static void chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
static int chacha20_neon(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
- struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_walk walk;
u32 state[16];
int err;
- if (!may_use_simd() || req->cryptlen <= CHACHA20_BLOCK_SIZE)
- return crypto_chacha20_crypt(req);
+ if (!may_use_simd() || req->cryptlen <= CHACHA_BLOCK_SIZE)
+ return crypto_chacha_crypt(req);
err = skcipher_walk_virt(&walk, req, false);
- crypto_chacha20_init(state, ctx, walk.iv);
+ crypto_chacha_init(state, ctx, walk.iv);
while (walk.nbytes > 0) {
unsigned int nbytes = walk.nbytes;
@@ -99,14 +99,14 @@ static struct skcipher_alg alg = {
.base.cra_driver_name = "chacha20-neon",
.base.cra_priority = 300,
.base.cra_blocksize = 1,
- .base.cra_ctxsize = sizeof(struct chacha20_ctx),
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
.base.cra_module = THIS_MODULE,
- .min_keysize = CHACHA20_KEY_SIZE,
- .max_keysize = CHACHA20_KEY_SIZE,
- .ivsize = CHACHA20_IV_SIZE,
- .chunksize = CHACHA20_BLOCK_SIZE,
- .walksize = 4 * CHACHA20_BLOCK_SIZE,
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = CHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .walksize = 4 * CHACHA_BLOCK_SIZE,
.setkey = crypto_chacha20_setkey,
.encrypt = chacha20_neon,
.decrypt = chacha20_neon,
diff --git a/arch/x86/crypto/chacha20_glue.c b/arch/x86/crypto/chacha20_glue.c
index dce7c5d39c2f..bd249f0b29dc 100644
--- a/arch/x86/crypto/chacha20_glue.c
+++ b/arch/x86/crypto/chacha20_glue.c
@@ -10,7 +10,7 @@
*/
#include <crypto/algapi.h>
-#include <crypto/chacha20.h>
+#include <crypto/chacha.h>
#include <crypto/internal/skcipher.h>
#include <linux/kernel.h>
#include <linux/module.h>
@@ -29,31 +29,31 @@ static bool chacha20_use_avx2;
static void chacha20_dosimd(u32 *state, u8 *dst, const u8 *src,
unsigned int bytes)
{
- u8 buf[CHACHA20_BLOCK_SIZE];
+ u8 buf[CHACHA_BLOCK_SIZE];
#ifdef CONFIG_AS_AVX2
if (chacha20_use_avx2) {
- while (bytes >= CHACHA20_BLOCK_SIZE * 8) {
+ while (bytes >= CHACHA_BLOCK_SIZE * 8) {
chacha20_8block_xor_avx2(state, dst, src);
- bytes -= CHACHA20_BLOCK_SIZE * 8;
- src += CHACHA20_BLOCK_SIZE * 8;
- dst += CHACHA20_BLOCK_SIZE * 8;
+ bytes -= CHACHA_BLOCK_SIZE * 8;
+ src += CHACHA_BLOCK_SIZE * 8;
+ dst += CHACHA_BLOCK_SIZE * 8;
state[12] += 8;
}
}
#endif
- while (bytes >= CHACHA20_BLOCK_SIZE * 4) {
+ while (bytes >= CHACHA_BLOCK_SIZE * 4) {
chacha20_4block_xor_ssse3(state, dst, src);
- bytes -= CHACHA20_BLOCK_SIZE * 4;
- src += CHACHA20_BLOCK_SIZE * 4;
- dst += CHACHA20_BLOCK_SIZE * 4;
+ bytes -= CHACHA_BLOCK_SIZE * 4;
+ src += CHACHA_BLOCK_SIZE * 4;
+ dst += CHACHA_BLOCK_SIZE * 4;
state[12] += 4;
}
- while (bytes >= CHACHA20_BLOCK_SIZE) {
+ while (bytes >= CHACHA_BLOCK_SIZE) {
chacha20_block_xor_ssse3(state, dst, src);
- bytes -= CHACHA20_BLOCK_SIZE;
- src += CHACHA20_BLOCK_SIZE;
- dst += CHACHA20_BLOCK_SIZE;
+ bytes -= CHACHA_BLOCK_SIZE;
+ src += CHACHA_BLOCK_SIZE;
+ dst += CHACHA_BLOCK_SIZE;
state[12]++;
}
if (bytes) {
@@ -66,7 +66,7 @@ static void chacha20_dosimd(u32 *state, u8 *dst, const u8 *src,
static int chacha20_simd(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
- struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
u32 *state, state_buf[16 + 2] __aligned(8);
struct skcipher_walk walk;
int err;
@@ -74,20 +74,20 @@ static int chacha20_simd(struct skcipher_request *req)
BUILD_BUG_ON(CHACHA20_STATE_ALIGN != 16);
state = PTR_ALIGN(state_buf + 0, CHACHA20_STATE_ALIGN);
- if (req->cryptlen <= CHACHA20_BLOCK_SIZE || !may_use_simd())
- return crypto_chacha20_crypt(req);
+ if (req->cryptlen <= CHACHA_BLOCK_SIZE || !may_use_simd())
+ return crypto_chacha_crypt(req);
err = skcipher_walk_virt(&walk, req, true);
- crypto_chacha20_init(state, ctx, walk.iv);
+ crypto_chacha_init(state, ctx, walk.iv);
kernel_fpu_begin();
- while (walk.nbytes >= CHACHA20_BLOCK_SIZE) {
+ while (walk.nbytes >= CHACHA_BLOCK_SIZE) {
chacha20_dosimd(state, walk.dst.virt.addr, walk.src.virt.addr,
- rounddown(walk.nbytes, CHACHA20_BLOCK_SIZE));
+ rounddown(walk.nbytes, CHACHA_BLOCK_SIZE));
err = skcipher_walk_done(&walk,
- walk.nbytes % CHACHA20_BLOCK_SIZE);
+ walk.nbytes % CHACHA_BLOCK_SIZE);
}
if (walk.nbytes) {
@@ -106,13 +106,13 @@ static struct skcipher_alg alg = {
.base.cra_driver_name = "chacha20-simd",
.base.cra_priority = 300,
.base.cra_blocksize = 1,
- .base.cra_ctxsize = sizeof(struct chacha20_ctx),
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
.base.cra_module = THIS_MODULE,
- .min_keysize = CHACHA20_KEY_SIZE,
- .max_keysize = CHACHA20_KEY_SIZE,
- .ivsize = CHACHA20_IV_SIZE,
- .chunksize = CHACHA20_BLOCK_SIZE,
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = CHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
.setkey = crypto_chacha20_setkey,
.encrypt = chacha20_simd,
.decrypt = chacha20_simd,
diff --git a/crypto/Makefile b/crypto/Makefile
index 5c207c76abf7..7e673f7c7110 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -116,7 +116,7 @@ obj-$(CONFIG_CRYPTO_KHAZAD) += khazad.o
obj-$(CONFIG_CRYPTO_ANUBIS) += anubis.o
obj-$(CONFIG_CRYPTO_SEED) += seed.o
obj-$(CONFIG_CRYPTO_SALSA20) += salsa20_generic.o
-obj-$(CONFIG_CRYPTO_CHACHA20) += chacha20_generic.o
+obj-$(CONFIG_CRYPTO_CHACHA20) += chacha_generic.o
obj-$(CONFIG_CRYPTO_POLY1305) += poly1305_generic.o
obj-$(CONFIG_CRYPTO_DEFLATE) += deflate.o
obj-$(CONFIG_CRYPTO_MICHAEL_MIC) += michael_mic.o
diff --git a/crypto/chacha20poly1305.c b/crypto/chacha20poly1305.c
index 600afa99941f..573c07e6f189 100644
--- a/crypto/chacha20poly1305.c
+++ b/crypto/chacha20poly1305.c
@@ -13,7 +13,7 @@
#include <crypto/internal/hash.h>
#include <crypto/internal/skcipher.h>
#include <crypto/scatterwalk.h>
-#include <crypto/chacha20.h>
+#include <crypto/chacha.h>
#include <crypto/poly1305.h>
#include <linux/err.h>
#include <linux/init.h>
@@ -51,7 +51,7 @@ struct poly_req {
};
struct chacha_req {
- u8 iv[CHACHA20_IV_SIZE];
+ u8 iv[CHACHA_IV_SIZE];
struct scatterlist src[1];
struct skcipher_request req; /* must be last member */
};
@@ -91,7 +91,7 @@ static void chacha_iv(u8 *iv, struct aead_request *req, u32 icb)
memcpy(iv, &leicb, sizeof(leicb));
memcpy(iv + sizeof(leicb), ctx->salt, ctx->saltlen);
memcpy(iv + sizeof(leicb) + ctx->saltlen, req->iv,
- CHACHA20_IV_SIZE - sizeof(leicb) - ctx->saltlen);
+ CHACHA_IV_SIZE - sizeof(leicb) - ctx->saltlen);
}
static int poly_verify_tag(struct aead_request *req)
@@ -494,7 +494,7 @@ static int chachapoly_setkey(struct crypto_aead *aead, const u8 *key,
struct chachapoly_ctx *ctx = crypto_aead_ctx(aead);
int err;
- if (keylen != ctx->saltlen + CHACHA20_KEY_SIZE)
+ if (keylen != ctx->saltlen + CHACHA_KEY_SIZE)
return -EINVAL;
keylen -= ctx->saltlen;
@@ -639,7 +639,7 @@ static int chachapoly_create(struct crypto_template *tmpl, struct rtattr **tb,
err = -EINVAL;
/* Need 16-byte IV size, including Initial Block Counter value */
- if (crypto_skcipher_alg_ivsize(chacha) != CHACHA20_IV_SIZE)
+ if (crypto_skcipher_alg_ivsize(chacha) != CHACHA_IV_SIZE)
goto out_drop_chacha;
/* Not a stream cipher? */
if (chacha->base.cra_blocksize != 1)
diff --git a/crypto/chacha20_generic.c b/crypto/chacha_generic.c
similarity index 57%
rename from crypto/chacha20_generic.c
rename to crypto/chacha_generic.c
index 4305b1b62b16..438f15a14054 100644
--- a/crypto/chacha20_generic.c
+++ b/crypto/chacha_generic.c
@@ -12,33 +12,33 @@
#include <asm/unaligned.h>
#include <crypto/algapi.h>
-#include <crypto/chacha20.h>
+#include <crypto/chacha.h>
#include <crypto/internal/skcipher.h>
#include <linux/module.h>
-static void chacha20_docrypt(u32 *state, u8 *dst, const u8 *src,
- unsigned int bytes)
+static void chacha_docrypt(u32 *state, u8 *dst, const u8 *src,
+ unsigned int bytes, int nrounds)
{
/* aligned to potentially speed up crypto_xor() */
- u8 stream[CHACHA20_BLOCK_SIZE] __aligned(sizeof(long));
+ u8 stream[CHACHA_BLOCK_SIZE] __aligned(sizeof(long));
if (dst != src)
memcpy(dst, src, bytes);
- while (bytes >= CHACHA20_BLOCK_SIZE) {
- chacha20_block(state, stream);
- crypto_xor(dst, stream, CHACHA20_BLOCK_SIZE);
- bytes -= CHACHA20_BLOCK_SIZE;
- dst += CHACHA20_BLOCK_SIZE;
+ while (bytes >= CHACHA_BLOCK_SIZE) {
+ chacha_block(state, stream, nrounds);
+ crypto_xor(dst, stream, CHACHA_BLOCK_SIZE);
+ bytes -= CHACHA_BLOCK_SIZE;
+ dst += CHACHA_BLOCK_SIZE;
}
if (bytes) {
- chacha20_block(state, stream);
+ chacha_block(state, stream, nrounds);
crypto_xor(dst, stream, bytes);
}
}
-static int chacha20_stream_xor(struct skcipher_request *req,
- struct chacha20_ctx *ctx, u8 *iv)
+static int chacha_stream_xor(struct skcipher_request *req,
+ struct chacha_ctx *ctx, u8 *iv)
{
struct skcipher_walk walk;
u32 state[16];
@@ -46,7 +46,7 @@ static int chacha20_stream_xor(struct skcipher_request *req,
err = skcipher_walk_virt(&walk, req, false);
- crypto_chacha20_init(state, ctx, iv);
+ crypto_chacha_init(state, ctx, iv);
while (walk.nbytes > 0) {
unsigned int nbytes = walk.nbytes;
@@ -54,15 +54,15 @@ static int chacha20_stream_xor(struct skcipher_request *req,
if (nbytes < walk.total)
nbytes = round_down(nbytes, walk.stride);
- chacha20_docrypt(state, walk.dst.virt.addr, walk.src.virt.addr,
- nbytes);
+ chacha_docrypt(state, walk.dst.virt.addr, walk.src.virt.addr,
+ nbytes, ctx->nrounds);
err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
}
return err;
}
-void crypto_chacha20_init(u32 *state, struct chacha20_ctx *ctx, u8 *iv)
+void crypto_chacha_init(u32 *state, struct chacha_ctx *ctx, u8 *iv)
{
state[0] = 0x61707865; /* "expa" */
state[1] = 0x3320646e; /* "nd 3" */
@@ -81,53 +81,61 @@ void crypto_chacha20_init(u32 *state, struct chacha20_ctx *ctx, u8 *iv)
state[14] = get_unaligned_le32(iv + 8);
state[15] = get_unaligned_le32(iv + 12);
}
-EXPORT_SYMBOL_GPL(crypto_chacha20_init);
+EXPORT_SYMBOL_GPL(crypto_chacha_init);
-int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key,
- unsigned int keysize)
+static int chacha_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keysize, int nrounds)
{
- struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
int i;
- if (keysize != CHACHA20_KEY_SIZE)
+ if (keysize != CHACHA_KEY_SIZE)
return -EINVAL;
for (i = 0; i < ARRAY_SIZE(ctx->key); i++)
ctx->key[i] = get_unaligned_le32(key + i * sizeof(u32));
+ ctx->nrounds = nrounds;
return 0;
}
+
+int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keysize)
+{
+ return chacha_setkey(tfm, key, keysize, 20);
+}
EXPORT_SYMBOL_GPL(crypto_chacha20_setkey);
-int crypto_chacha20_crypt(struct skcipher_request *req)
+int crypto_chacha_crypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
- struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
- return chacha20_stream_xor(req, ctx, req->iv);
+ return chacha_stream_xor(req, ctx, req->iv);
}
-EXPORT_SYMBOL_GPL(crypto_chacha20_crypt);
+EXPORT_SYMBOL_GPL(crypto_chacha_crypt);
-int crypto_xchacha20_crypt(struct skcipher_request *req)
+int crypto_xchacha_crypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
- struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
- struct chacha20_ctx subctx;
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct chacha_ctx subctx;
u32 state[16];
u8 real_iv[16];
/* Compute the subkey given the original key and first 128 nonce bits */
- crypto_chacha20_init(state, ctx, req->iv);
- hchacha20_block(state, subctx.key);
+ crypto_chacha_init(state, ctx, req->iv);
+ hchacha_block(state, subctx.key, ctx->nrounds);
+ subctx.nrounds = ctx->nrounds;
/* Build the real IV */
memcpy(&real_iv[0], req->iv + 24, 8); /* stream position */
memcpy(&real_iv[8], req->iv + 16, 8); /* remaining 64 nonce bits */
/* Generate the stream and XOR it with the data */
- return chacha20_stream_xor(req, &subctx, real_iv);
+ return chacha_stream_xor(req, &subctx, real_iv);
}
-EXPORT_SYMBOL_GPL(crypto_xchacha20_crypt);
+EXPORT_SYMBOL_GPL(crypto_xchacha_crypt);
static struct skcipher_alg algs[] = {
{
@@ -135,50 +143,50 @@ static struct skcipher_alg algs[] = {
.base.cra_driver_name = "chacha20-generic",
.base.cra_priority = 100,
.base.cra_blocksize = 1,
- .base.cra_ctxsize = sizeof(struct chacha20_ctx),
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
.base.cra_module = THIS_MODULE,
- .min_keysize = CHACHA20_KEY_SIZE,
- .max_keysize = CHACHA20_KEY_SIZE,
- .ivsize = CHACHA20_IV_SIZE,
- .chunksize = CHACHA20_BLOCK_SIZE,
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = CHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
.setkey = crypto_chacha20_setkey,
- .encrypt = crypto_chacha20_crypt,
- .decrypt = crypto_chacha20_crypt,
+ .encrypt = crypto_chacha_crypt,
+ .decrypt = crypto_chacha_crypt,
}, {
.base.cra_name = "xchacha20",
.base.cra_driver_name = "xchacha20-generic",
.base.cra_priority = 100,
.base.cra_blocksize = 1,
- .base.cra_ctxsize = sizeof(struct chacha20_ctx),
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
.base.cra_module = THIS_MODULE,
- .min_keysize = CHACHA20_KEY_SIZE,
- .max_keysize = CHACHA20_KEY_SIZE,
- .ivsize = XCHACHA20_IV_SIZE,
- .chunksize = CHACHA20_BLOCK_SIZE,
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = XCHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
.setkey = crypto_chacha20_setkey,
- .encrypt = crypto_xchacha20_crypt,
- .decrypt = crypto_xchacha20_crypt,
+ .encrypt = crypto_xchacha_crypt,
+ .decrypt = crypto_xchacha_crypt,
}
};
-static int __init chacha20_generic_mod_init(void)
+static int __init chacha_generic_mod_init(void)
{
return crypto_register_skciphers(algs, ARRAY_SIZE(algs));
}
-static void __exit chacha20_generic_mod_fini(void)
+static void __exit chacha_generic_mod_fini(void)
{
crypto_unregister_skciphers(algs, ARRAY_SIZE(algs));
}
-module_init(chacha20_generic_mod_init);
-module_exit(chacha20_generic_mod_fini);
+module_init(chacha_generic_mod_init);
+module_exit(chacha_generic_mod_fini);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Martin Willi <[email protected]>");
-MODULE_DESCRIPTION("ChaCha20 and XChaCha20 stream ciphers (generic)");
+MODULE_DESCRIPTION("ChaCha and XChaCha stream ciphers (generic)");
MODULE_ALIAS_CRYPTO("chacha20");
MODULE_ALIAS_CRYPTO("chacha20-generic");
MODULE_ALIAS_CRYPTO("xchacha20");
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 2eb70e76ed35..38c6d1af6d1c 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -265,7 +265,7 @@
#include <linux/syscalls.h>
#include <linux/completion.h>
#include <linux/uuid.h>
-#include <crypto/chacha20.h>
+#include <crypto/chacha.h>
#include <asm/processor.h>
#include <linux/uaccess.h>
@@ -431,11 +431,10 @@ static int crng_init = 0;
#define crng_ready() (likely(crng_init > 1))
static int crng_init_cnt = 0;
static unsigned long crng_global_init_time = 0;
-#define CRNG_INIT_CNT_THRESH (2*CHACHA20_KEY_SIZE)
-static void _extract_crng(struct crng_state *crng,
- __u8 out[CHACHA20_BLOCK_SIZE]);
+#define CRNG_INIT_CNT_THRESH (2*CHACHA_KEY_SIZE)
+static void _extract_crng(struct crng_state *crng, __u8 out[CHACHA_BLOCK_SIZE]);
static void _crng_backtrack_protect(struct crng_state *crng,
- __u8 tmp[CHACHA20_BLOCK_SIZE], int used);
+ __u8 tmp[CHACHA_BLOCK_SIZE], int used);
static void process_random_ready_list(void);
static void _get_random_bytes(void *buf, int nbytes);
@@ -863,7 +862,7 @@ static int crng_fast_load(const char *cp, size_t len)
}
p = (unsigned char *) &primary_crng.state[4];
while (len > 0 && crng_init_cnt < CRNG_INIT_CNT_THRESH) {
- p[crng_init_cnt % CHACHA20_KEY_SIZE] ^= *cp;
+ p[crng_init_cnt % CHACHA_KEY_SIZE] ^= *cp;
cp++; crng_init_cnt++; len--;
}
spin_unlock_irqrestore(&primary_crng.lock, flags);
@@ -895,7 +894,7 @@ static int crng_slow_load(const char *cp, size_t len)
unsigned long flags;
static unsigned char lfsr = 1;
unsigned char tmp;
- unsigned i, max = CHACHA20_KEY_SIZE;
+ unsigned i, max = CHACHA_KEY_SIZE;
const char * src_buf = cp;
char * dest_buf = (char *) &primary_crng.state[4];
@@ -913,8 +912,8 @@ static int crng_slow_load(const char *cp, size_t len)
lfsr >>= 1;
if (tmp & 1)
lfsr ^= 0xE1;
- tmp = dest_buf[i % CHACHA20_KEY_SIZE];
- dest_buf[i % CHACHA20_KEY_SIZE] ^= src_buf[i % len] ^ lfsr;
+ tmp = dest_buf[i % CHACHA_KEY_SIZE];
+ dest_buf[i % CHACHA_KEY_SIZE] ^= src_buf[i % len] ^ lfsr;
lfsr += (tmp << 3) | (tmp >> 5);
}
spin_unlock_irqrestore(&primary_crng.lock, flags);
@@ -926,7 +925,7 @@ static void crng_reseed(struct crng_state *crng, struct entropy_store *r)
unsigned long flags;
int i, num;
union {
- __u8 block[CHACHA20_BLOCK_SIZE];
+ __u8 block[CHACHA_BLOCK_SIZE];
__u32 key[8];
} buf;
@@ -937,7 +936,7 @@ static void crng_reseed(struct crng_state *crng, struct entropy_store *r)
} else {
_extract_crng(&primary_crng, buf.block);
_crng_backtrack_protect(&primary_crng, buf.block,
- CHACHA20_KEY_SIZE);
+ CHACHA_KEY_SIZE);
}
spin_lock_irqsave(&crng->lock, flags);
for (i = 0; i < 8; i++) {
@@ -973,7 +972,7 @@ static void crng_reseed(struct crng_state *crng, struct entropy_store *r)
}
static void _extract_crng(struct crng_state *crng,
- __u8 out[CHACHA20_BLOCK_SIZE])
+ __u8 out[CHACHA_BLOCK_SIZE])
{
unsigned long v, flags;
@@ -990,7 +989,7 @@ static void _extract_crng(struct crng_state *crng,
spin_unlock_irqrestore(&crng->lock, flags);
}
-static void extract_crng(__u8 out[CHACHA20_BLOCK_SIZE])
+static void extract_crng(__u8 out[CHACHA_BLOCK_SIZE])
{
struct crng_state *crng = NULL;
@@ -1008,14 +1007,14 @@ static void extract_crng(__u8 out[CHACHA20_BLOCK_SIZE])
* enough) to mutate the CRNG key to provide backtracking protection.
*/
static void _crng_backtrack_protect(struct crng_state *crng,
- __u8 tmp[CHACHA20_BLOCK_SIZE], int used)
+ __u8 tmp[CHACHA_BLOCK_SIZE], int used)
{
unsigned long flags;
__u32 *s, *d;
int i;
used = round_up(used, sizeof(__u32));
- if (used + CHACHA20_KEY_SIZE > CHACHA20_BLOCK_SIZE) {
+ if (used + CHACHA_KEY_SIZE > CHACHA_BLOCK_SIZE) {
extract_crng(tmp);
used = 0;
}
@@ -1027,7 +1026,7 @@ static void _crng_backtrack_protect(struct crng_state *crng,
spin_unlock_irqrestore(&crng->lock, flags);
}
-static void crng_backtrack_protect(__u8 tmp[CHACHA20_BLOCK_SIZE], int used)
+static void crng_backtrack_protect(__u8 tmp[CHACHA_BLOCK_SIZE], int used)
{
struct crng_state *crng = NULL;
@@ -1042,8 +1041,8 @@ static void crng_backtrack_protect(__u8 tmp[CHACHA20_BLOCK_SIZE], int used)
static ssize_t extract_crng_user(void __user *buf, size_t nbytes)
{
- ssize_t ret = 0, i = CHACHA20_BLOCK_SIZE;
- __u8 tmp[CHACHA20_BLOCK_SIZE] __aligned(4);
+ ssize_t ret = 0, i = CHACHA_BLOCK_SIZE;
+ __u8 tmp[CHACHA_BLOCK_SIZE] __aligned(4);
int large_request = (nbytes > 256);
while (nbytes) {
@@ -1057,7 +1056,7 @@ static ssize_t extract_crng_user(void __user *buf, size_t nbytes)
}
extract_crng(tmp);
- i = min_t(int, nbytes, CHACHA20_BLOCK_SIZE);
+ i = min_t(int, nbytes, CHACHA_BLOCK_SIZE);
if (copy_to_user(buf, tmp, i)) {
ret = -EFAULT;
break;
@@ -1622,14 +1621,14 @@ static void _warn_unseeded_randomness(const char *func_name, void *caller,
*/
static void _get_random_bytes(void *buf, int nbytes)
{
- __u8 tmp[CHACHA20_BLOCK_SIZE] __aligned(4);
+ __u8 tmp[CHACHA_BLOCK_SIZE] __aligned(4);
trace_get_random_bytes(nbytes, _RET_IP_);
- while (nbytes >= CHACHA20_BLOCK_SIZE) {
+ while (nbytes >= CHACHA_BLOCK_SIZE) {
extract_crng(buf);
- buf += CHACHA20_BLOCK_SIZE;
- nbytes -= CHACHA20_BLOCK_SIZE;
+ buf += CHACHA_BLOCK_SIZE;
+ nbytes -= CHACHA_BLOCK_SIZE;
}
if (nbytes > 0) {
@@ -1637,7 +1636,7 @@ static void _get_random_bytes(void *buf, int nbytes)
memcpy(buf, tmp, nbytes);
crng_backtrack_protect(tmp, nbytes);
} else
- crng_backtrack_protect(tmp, CHACHA20_BLOCK_SIZE);
+ crng_backtrack_protect(tmp, CHACHA_BLOCK_SIZE);
memzero_explicit(tmp, sizeof(tmp));
}
@@ -2208,8 +2207,8 @@ struct ctl_table random_table[] = {
struct batched_entropy {
union {
- u64 entropy_u64[CHACHA20_BLOCK_SIZE / sizeof(u64)];
- u32 entropy_u32[CHACHA20_BLOCK_SIZE / sizeof(u32)];
+ u64 entropy_u64[CHACHA_BLOCK_SIZE / sizeof(u64)];
+ u32 entropy_u32[CHACHA_BLOCK_SIZE / sizeof(u32)];
};
unsigned int position;
};
diff --git a/include/crypto/chacha.h b/include/crypto/chacha.h
new file mode 100644
index 000000000000..ae79e9983c72
--- /dev/null
+++ b/include/crypto/chacha.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common values and helper functions for the ChaCha and XChaCha stream ciphers.
+ *
+ * XChaCha extends ChaCha's nonce to 192 bits, while provably retaining ChaCha's
+ * security. Here they share the same key size, tfm context, and setkey
+ * function; only their IV size and encrypt/decrypt function differ.
+ */
+
+#ifndef _CRYPTO_CHACHA_H
+#define _CRYPTO_CHACHA_H
+
+#include <crypto/skcipher.h>
+#include <linux/types.h>
+#include <linux/crypto.h>
+
+/* 32-bit stream position, then 96-bit nonce (RFC7539 convention) */
+#define CHACHA_IV_SIZE 16
+
+#define CHACHA_KEY_SIZE 32
+#define CHACHA_BLOCK_SIZE 64
+
+/* 192-bit nonce, then 64-bit stream position */
+#define XCHACHA_IV_SIZE 32
+
+struct chacha_ctx {
+ u32 key[8];
+ int nrounds;
+};
+
+void chacha_block(u32 *state, u8 *stream, int nrounds);
+static inline void chacha20_block(u32 *state, u8 *stream)
+{
+ chacha_block(state, stream, 20);
+}
+void hchacha_block(const u32 *in, u32 *out, int nrounds);
+
+void crypto_chacha_init(u32 *state, struct chacha_ctx *ctx, u8 *iv);
+
+int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keysize);
+
+int crypto_chacha_crypt(struct skcipher_request *req);
+int crypto_xchacha_crypt(struct skcipher_request *req);
+
+#endif /* _CRYPTO_CHACHA_H */
diff --git a/include/crypto/chacha20.h b/include/crypto/chacha20.h
deleted file mode 100644
index 6290d997060e..000000000000
--- a/include/crypto/chacha20.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Common values and helper functions for the ChaCha20 and XChaCha20 algorithms.
- *
- * XChaCha20 extends ChaCha20's nonce to 192 bits, while provably retaining
- * ChaCha20's security. Here they share the same key size, tfm context, and
- * setkey function; only their IV size and encrypt/decrypt function differ.
- */
-
-#ifndef _CRYPTO_CHACHA20_H
-#define _CRYPTO_CHACHA20_H
-
-#include <crypto/skcipher.h>
-#include <linux/types.h>
-#include <linux/crypto.h>
-
-/* 32-bit stream position, then 96-bit nonce (RFC7539 convention) */
-#define CHACHA20_IV_SIZE 16
-
-#define CHACHA20_KEY_SIZE 32
-#define CHACHA20_BLOCK_SIZE 64
-
-/* 192-bit nonce, then 64-bit stream position */
-#define XCHACHA20_IV_SIZE 32
-
-struct chacha20_ctx {
- u32 key[8];
-};
-
-void chacha20_block(u32 *state, u8 *stream);
-void hchacha20_block(const u32 *in, u32 *out);
-
-void crypto_chacha20_init(u32 *state, struct chacha20_ctx *ctx, u8 *iv);
-
-int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key,
- unsigned int keysize);
-
-int crypto_chacha20_crypt(struct skcipher_request *req);
-int crypto_xchacha20_crypt(struct skcipher_request *req);
-
-#endif
diff --git a/lib/Makefile b/lib/Makefile
index db06d1237898..4c2b6fc5cde9 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -20,7 +20,7 @@ KCOV_INSTRUMENT_dynamic_debug.o := n
lib-y := ctype.o string.o vsprintf.o cmdline.o \
rbtree.o radix-tree.o timerqueue.o xarray.o \
idr.o int_sqrt.o extable.o \
- sha1.o chacha20.o irq_regs.o argv_split.o \
+ sha1.o chacha.o irq_regs.o argv_split.o \
flex_proportions.o ratelimit.o show_mem.o \
is_single_threaded.o plist.o decompress.o kobject_uevent.o \
earlycpio.o seq_buf.o siphash.o dec_and_lock.o \
diff --git a/lib/chacha20.c b/lib/chacha.c
similarity index 67%
rename from lib/chacha20.c
rename to lib/chacha.c
index 6a484e16171d..1bdc688c18df 100644
--- a/lib/chacha20.c
+++ b/lib/chacha.c
@@ -1,5 +1,5 @@
/*
- * The "hash function" used as the core of the ChaCha20 stream cipher (RFC7539)
+ * The "hash function" used as the core of the ChaCha stream cipher (RFC7539)
*
* Copyright (C) 2015 Martin Willi
*
@@ -14,13 +14,16 @@
#include <linux/bitops.h>
#include <linux/cryptohash.h>
#include <asm/unaligned.h>
-#include <crypto/chacha20.h>
+#include <crypto/chacha.h>
-static void chacha20_permute(u32 *x)
+static void chacha_permute(u32 *x, int nrounds)
{
int i;
- for (i = 0; i < 20; i += 2) {
+ /* whitelist the allowed round counts */
+ WARN_ON_ONCE(nrounds != 20);
+
+ for (i = 0; i < nrounds; i += 2) {
x[0] += x[4]; x[12] = rol32(x[12] ^ x[0], 16);
x[1] += x[5]; x[13] = rol32(x[13] ^ x[1], 16);
x[2] += x[6]; x[14] = rol32(x[14] ^ x[2], 16);
@@ -64,49 +67,51 @@ static void chacha20_permute(u32 *x)
}
/**
- * chacha20_block - generate one keystream block and increment block counter
+ * chacha_block - generate one keystream block and increment block counter
* @state: input state matrix (16 32-bit words)
* @stream: output keystream block (64 bytes)
+ * @nrounds: number of rounds (currently must be 20)
*
- * This is the ChaCha20 core, a function from 64-byte strings to 64-byte
- * strings. The caller has already converted the endianness of the input. This
- * function also handles incrementing the block counter in the input matrix.
+ * This is the ChaCha core, a function from 64-byte strings to 64-byte strings.
+ * The caller has already converted the endianness of the input. This function
+ * also handles incrementing the block counter in the input matrix.
*/
-void chacha20_block(u32 *state, u8 *stream)
+void chacha_block(u32 *state, u8 *stream, int nrounds)
{
u32 x[16];
int i;
memcpy(x, state, 64);
- chacha20_permute(x);
+ chacha_permute(x, nrounds);
for (i = 0; i < ARRAY_SIZE(x); i++)
put_unaligned_le32(x[i] + state[i], &stream[i * sizeof(u32)]);
state[12]++;
}
-EXPORT_SYMBOL(chacha20_block);
+EXPORT_SYMBOL(chacha_block);
/**
- * hchacha20_block - abbreviated ChaCha20 core, for XChaCha20
+ * hchacha_block - abbreviated ChaCha core, for XChaCha
* @in: input state matrix (16 32-bit words)
* @out: output (8 32-bit words)
+ * @nrounds: number of rounds (currently must be 20)
*
- * HChaCha20 is the ChaCha equivalent of HSalsa20 and is an intermediate step
- * towards XChaCha20 (see https://cr.yp.to/snuffle/xsalsa-20081128.pdf).
- * HChaCha20 skips the final addition of the initial state, and outputs only
- * certain words of the state. It should not be used for streaming directly.
+ * HChaCha is the ChaCha equivalent of HSalsa and is an intermediate step
+ * towards XChaCha (see https://cr.yp.to/snuffle/xsalsa-20081128.pdf). HChaCha
+ * skips the final addition of the initial state, and outputs only certain words
+ * of the state. It should not be used for streaming directly.
*/
-void hchacha20_block(const u32 *in, u32 *out)
+void hchacha_block(const u32 *in, u32 *out, int nrounds)
{
u32 x[16];
memcpy(x, in, 64);
- chacha20_permute(x);
+ chacha_permute(x, nrounds);
memcpy(&out[0], &x[0], 16);
memcpy(&out[4], &x[12], 16);
}
-EXPORT_SYMBOL(hchacha20_block);
+EXPORT_SYMBOL(hchacha_block);
--
2.19.1.930.g4563a0d9d0-goog
On Fri, 16 Nov 2018 at 16:17, Eric Biggers <[email protected]> wrote:
>
> Hi Herbert,
>
> On Fri, Nov 16, 2018 at 02:02:27PM +0800, Herbert Xu wrote:
> > Hi Eric:
> >
> > On Mon, Nov 12, 2018 at 10:58:17AM -0800, Eric Biggers wrote:
> > >
> > > I prefer separate types so that the type system enforces that a key is never
> > > accidentally used as an accumulator, and vice versa. Then the poly1305_core_*
> > > functions will be harder to misuse, and the Poly1305 MAC implementations harder
> > > to get wrong.
> > >
> > > The key also has certain bits clear whereas the accumulator does not. In the
> > > future, the Poly1305 C implementation might use base 2^32 and take advantage of
> > > this. In that case, the two inputs to each multiplication won't be
> > > interchangeable, so using the same type for both would be extra confusing.
> > >
> > > Having a poly1305_val nested inside poly1305_key and poly1305_state would work,
> > > but seemed excessive.
> >
> > So it looks like there are no more unresolved issues with this
> > patch series. Please let me know when you want it to go in.
> >
>
> I believe it's ready to go in. I'll need to rebase it onto cryptodev, to
> resolve some small conflicts with the recent ChaCha20-related changes. Also
> I'll probably omit the fscrypt patch (patch 15/15) so that that patch can be
> taken through the fscrypt tree instead.
>
> Do you prefer that this be merged before or after Zinc? It seems it may still
> be a while before the community is satisfied with Zinc (and Wireguard which is
> in the same patchset), and I don't want this blocked unnecessarily... So on my
> part I'd prefer to just have this merged as-is.
>
> Of course, it's always possible to change the xchacha12 and xchacha20
> implementations later, whether that's to use "Zinc" or otherwise. And
> NHPoly1305 and Adiantum itself will be the same either way, except that the
> Poly1305 helpers may change slightly.
>
> What do you think?
>
I think this is ready to go in. Most of Zinc itself will not be
blocked by this, only the changes to the crypto API ChaCha20
implementation will have to wait until the Zinc version gains support
for the reduced round variant, but that will not block WireGuard.
Hi Herbert,
On Fri, Nov 16, 2018 at 02:02:27PM +0800, Herbert Xu wrote:
> Hi Eric:
>
> On Mon, Nov 12, 2018 at 10:58:17AM -0800, Eric Biggers wrote:
> >
> > I prefer separate types so that the type system enforces that a key is never
> > accidentally used as an accumulator, and vice versa. Then the poly1305_core_*
> > functions will be harder to misuse, and the Poly1305 MAC implementations harder
> > to get wrong.
> >
> > The key also has certain bits clear whereas the accumulator does not. In the
> > future, the Poly1305 C implementation might use base 2^32 and take advantage of
> > this. In that case, the two inputs to each multiplication won't be
> > interchangeable, so using the same type for both would be extra confusing.
> >
> > Having a poly1305_val nested inside poly1305_key and poly1305_state would work,
> > but seemed excessive.
>
> So it looks like there are no more unresolved issues with this
> patch series. Please let me know when you want it to go in.
>
I believe it's ready to go in. I'll need to rebase it onto cryptodev, to
resolve some small conflicts with the recent ChaCha20-related changes. Also
I'll probably omit the fscrypt patch (patch 15/15) so that that patch can be
taken through the fscrypt tree instead.
Do you prefer that this be merged before or after Zinc? It seems it may still
be a while before the community is satisfied with Zinc (and Wireguard which is
in the same patchset), and I don't want this blocked unnecessarily... So on my
part I'd prefer to just have this merged as-is.
Of course, it's always possible to change the xchacha12 and xchacha20
implementations later, whether that's to use "Zinc" or otherwise. And
NHPoly1305 and Adiantum itself will be the same either way, except that the
Poly1305 helpers may change slightly.
What do you think?
Thanks!
- Eric
Hi Eric,
On Mon, Nov 19, 2018 at 11:54 PM Eric Biggers <[email protected]> wrote:
> Will v9 include a documentation file for Zinc in Documentation/crypto/?
> That's been suggested several times.
I had started writing that there, but then thought that the requested
information could go in the commit message instead. But I'm guessing
you're asking again now because you poked into the repo and didn't
find the Documentation/, so presumably you still want it. I can
reorganize the presentation of that to be more suitable for
Documentation/, and I'll have that for v9.
> I'd still prefer to see the conversion patches included. Skipping them would be
> kicking the can down the road and avoiding issues that will need to be addressed
> anyway. Like you, I don't want a "half-baked concoction that will be maybe
> possibly be replaced 'later'" :-)
Okay, fair enough. Will do.
> Either way though, it would make things much easier if you at least named the
> files, structures, constants, etc. "ChaCha" rather than "ChaCha20" from the
> start where appropriate. For an example, see the commit "crypto: chacha -
> prepare for supporting non-20-round variants" on my "adiantum-zinc" branch:
> https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git/commit/?h=adiantum-zinc&id=754af8d7d39f31238114426e39786c84d7cc0f98
> Then the actual introduction of the 12-round variant is much less noisy.
That's a good idea. I'll do it like that. I'll likely order it as what
we have now (renamed to omit the 20), and then put the 12 stuff on top
of that, so it's easier to see what's changed in the process. I
noticed in that branch, you didn't port the assembly to support fewer
rounds. Shall I follow suite, and then expect patches from you later
doing that? Or were you expecting me to also port the architecture
implementations to chacha12 as well?
Regards,
Jason
From: Eric Biggers <[email protected]>
Add a generic implementation of NHPoly1305, an ε-almost-∆-universal hash
function used in the Adiantum encryption mode.
CONFIG_NHPOLY1305 is not selectable by itself since there won't be any
real reason to enable it without also enabling Adiantum support.
Signed-off-by: Eric Biggers <[email protected]>
---
crypto/Kconfig | 5 +
crypto/Makefile | 1 +
crypto/nhpoly1305.c | 254 +++++++
crypto/testmgr.c | 6 +
crypto/testmgr.h | 1240 ++++++++++++++++++++++++++++++++++-
include/crypto/nhpoly1305.h | 74 +++
6 files changed, 1576 insertions(+), 4 deletions(-)
create mode 100644 crypto/nhpoly1305.c
create mode 100644 include/crypto/nhpoly1305.h
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 4fa0a4a0e861..431beca90362 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -493,6 +493,11 @@ config CRYPTO_KEYWRAP
Support for key wrapping (NIST SP800-38F / RFC3394) without
padding.
+config CRYPTO_NHPOLY1305
+ tristate
+ select CRYPTO_HASH
+ select CRYPTO_POLY1305
+
comment "Hash modes"
config CRYPTO_CMAC
diff --git a/crypto/Makefile b/crypto/Makefile
index 7e673f7c7110..87b86f221a2a 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -84,6 +84,7 @@ obj-$(CONFIG_CRYPTO_LRW) += lrw.o
obj-$(CONFIG_CRYPTO_XTS) += xts.o
obj-$(CONFIG_CRYPTO_CTR) += ctr.o
obj-$(CONFIG_CRYPTO_KEYWRAP) += keywrap.o
+obj-$(CONFIG_CRYPTO_NHPOLY1305) += nhpoly1305.o
obj-$(CONFIG_CRYPTO_GCM) += gcm.o
obj-$(CONFIG_CRYPTO_CCM) += ccm.o
obj-$(CONFIG_CRYPTO_CHACHA20POLY1305) += chacha20poly1305.o
diff --git a/crypto/nhpoly1305.c b/crypto/nhpoly1305.c
new file mode 100644
index 000000000000..c8385853f699
--- /dev/null
+++ b/crypto/nhpoly1305.c
@@ -0,0 +1,254 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * NHPoly1305 - ε-almost-∆-universal hash function for Adiantum
+ *
+ * Copyright 2018 Google LLC
+ */
+
+/*
+ * "NHPoly1305" is the main component of Adiantum hashing.
+ * Specifically, it is the calculation
+ *
+ * H_M ← Poly1305_{K_M}(NH_{K_N}(pad_{128}(M)))
+ *
+ * from the procedure in section A.5 of the Adiantum paper [1]. It is an
+ * ε-almost-∆-universal (εA∆U) hash function for equal-length inputs over
+ * Z/(2^{128}Z), where the "∆" operation is addition. It hashes 1024-byte
+ * chunks of the input with the NH hash function [2], reducing the input length
+ * by 32x. The resulting NH digests are evaluated as a polynomial in
+ * GF(2^{130}-5), like in the Poly1305 MAC [3]. Note that the polynomial
+ * evaluation by itself would suffice to achieve the εA∆U property; NH is used
+ * for performance since it's over twice as fast as Poly1305.
+ *
+ * This is *not* a cryptographic hash function; do not use it as such!
+ *
+ * [1] Adiantum: length-preserving encryption for entry-level processors
+ * (https://eprint.iacr.org/2018/720.pdf)
+ * [2] UMAC: Fast and Secure Message Authentication
+ * (https://fastcrypto.org/umac/umac_proc.pdf)
+ * [3] The Poly1305-AES message-authentication code
+ * (https://cr.yp.to/mac/poly1305-20050329.pdf)
+ */
+
+#include <asm/unaligned.h>
+#include <crypto/algapi.h>
+#include <crypto/internal/hash.h>
+#include <crypto/nhpoly1305.h>
+#include <linux/crypto.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+static void nh_generic(const u32 *key, const u8 *message, size_t message_len,
+ __le64 hash[NH_NUM_PASSES])
+{
+ u64 sums[4] = { 0, 0, 0, 0 };
+
+ BUILD_BUG_ON(NH_PAIR_STRIDE != 2);
+ BUILD_BUG_ON(NH_NUM_PASSES != 4);
+
+ while (message_len) {
+ u32 m0 = get_unaligned_le32(message + 0);
+ u32 m1 = get_unaligned_le32(message + 4);
+ u32 m2 = get_unaligned_le32(message + 8);
+ u32 m3 = get_unaligned_le32(message + 12);
+
+ sums[0] += (u64)(u32)(m0 + key[ 0]) * (u32)(m2 + key[ 2]);
+ sums[1] += (u64)(u32)(m0 + key[ 4]) * (u32)(m2 + key[ 6]);
+ sums[2] += (u64)(u32)(m0 + key[ 8]) * (u32)(m2 + key[10]);
+ sums[3] += (u64)(u32)(m0 + key[12]) * (u32)(m2 + key[14]);
+ sums[0] += (u64)(u32)(m1 + key[ 1]) * (u32)(m3 + key[ 3]);
+ sums[1] += (u64)(u32)(m1 + key[ 5]) * (u32)(m3 + key[ 7]);
+ sums[2] += (u64)(u32)(m1 + key[ 9]) * (u32)(m3 + key[11]);
+ sums[3] += (u64)(u32)(m1 + key[13]) * (u32)(m3 + key[15]);
+ key += NH_MESSAGE_UNIT / sizeof(key[0]);
+ message += NH_MESSAGE_UNIT;
+ message_len -= NH_MESSAGE_UNIT;
+ }
+
+ hash[0] = cpu_to_le64(sums[0]);
+ hash[1] = cpu_to_le64(sums[1]);
+ hash[2] = cpu_to_le64(sums[2]);
+ hash[3] = cpu_to_le64(sums[3]);
+}
+
+/* Pass the next NH hash value through Poly1305 */
+static void process_nh_hash_value(struct nhpoly1305_state *state,
+ const struct nhpoly1305_key *key)
+{
+ BUILD_BUG_ON(NH_HASH_BYTES % POLY1305_BLOCK_SIZE != 0);
+
+ poly1305_core_blocks(&state->poly_state, &key->poly_key, state->nh_hash,
+ NH_HASH_BYTES / POLY1305_BLOCK_SIZE);
+}
+
+/*
+ * Feed the next portion of the source data, as a whole number of 16-byte
+ * "NH message units", through NH and Poly1305. Each NH hash is taken over
+ * 1024 bytes, except possibly the final one which is taken over a multiple of
+ * 16 bytes up to 1024. Also, in the case where data is passed in misaligned
+ * chunks, we combine partial hashes; the end result is the same either way.
+ */
+static void nhpoly1305_units(struct nhpoly1305_state *state,
+ const struct nhpoly1305_key *key,
+ const u8 *src, unsigned int srclen, nh_t nh_fn)
+{
+ do {
+ unsigned int bytes;
+
+ if (state->nh_remaining == 0) {
+ /* Starting a new NH message */
+ bytes = min_t(unsigned int, srclen, NH_MESSAGE_BYTES);
+ nh_fn(key->nh_key, src, bytes, state->nh_hash);
+ state->nh_remaining = NH_MESSAGE_BYTES - bytes;
+ } else {
+ /* Continuing a previous NH message */
+ __le64 tmp_hash[NH_NUM_PASSES];
+ unsigned int pos;
+ int i;
+
+ pos = NH_MESSAGE_BYTES - state->nh_remaining;
+ bytes = min(srclen, state->nh_remaining);
+ nh_fn(&key->nh_key[pos / 4], src, bytes, tmp_hash);
+ for (i = 0; i < NH_NUM_PASSES; i++)
+ le64_add_cpu(&state->nh_hash[i],
+ le64_to_cpu(tmp_hash[i]));
+ state->nh_remaining -= bytes;
+ }
+ if (state->nh_remaining == 0)
+ process_nh_hash_value(state, key);
+ src += bytes;
+ srclen -= bytes;
+ } while (srclen);
+}
+
+int crypto_nhpoly1305_setkey(struct crypto_shash *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ struct nhpoly1305_key *ctx = crypto_shash_ctx(tfm);
+ int i;
+
+ if (keylen != NHPOLY1305_KEY_SIZE)
+ return -EINVAL;
+
+ poly1305_core_setkey(&ctx->poly_key, key);
+ key += POLY1305_BLOCK_SIZE;
+
+ for (i = 0; i < NH_KEY_WORDS; i++)
+ ctx->nh_key[i] = get_unaligned_le32(key + i * sizeof(u32));
+
+ return 0;
+}
+EXPORT_SYMBOL(crypto_nhpoly1305_setkey);
+
+int crypto_nhpoly1305_init(struct shash_desc *desc)
+{
+ struct nhpoly1305_state *state = shash_desc_ctx(desc);
+
+ poly1305_core_init(&state->poly_state);
+ state->buflen = 0;
+ state->nh_remaining = 0;
+ return 0;
+}
+EXPORT_SYMBOL(crypto_nhpoly1305_init);
+
+int crypto_nhpoly1305_update_helper(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen,
+ nh_t nh_fn)
+{
+ struct nhpoly1305_state *state = shash_desc_ctx(desc);
+ const struct nhpoly1305_key *key = crypto_shash_ctx(desc->tfm);
+ unsigned int bytes;
+
+ if (state->buflen) {
+ bytes = min(srclen, (int)NH_MESSAGE_UNIT - state->buflen);
+ memcpy(&state->buffer[state->buflen], src, bytes);
+ state->buflen += bytes;
+ if (state->buflen < NH_MESSAGE_UNIT)
+ return 0;
+ nhpoly1305_units(state, key, state->buffer, NH_MESSAGE_UNIT,
+ nh_fn);
+ state->buflen = 0;
+ src += bytes;
+ srclen -= bytes;
+ }
+
+ if (srclen >= NH_MESSAGE_UNIT) {
+ bytes = round_down(srclen, NH_MESSAGE_UNIT);
+ nhpoly1305_units(state, key, src, bytes, nh_fn);
+ src += bytes;
+ srclen -= bytes;
+ }
+
+ if (srclen) {
+ memcpy(state->buffer, src, srclen);
+ state->buflen = srclen;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(crypto_nhpoly1305_update_helper);
+
+int crypto_nhpoly1305_update(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen)
+{
+ return crypto_nhpoly1305_update_helper(desc, src, srclen, nh_generic);
+}
+EXPORT_SYMBOL(crypto_nhpoly1305_update);
+
+int crypto_nhpoly1305_final_helper(struct shash_desc *desc, u8 *dst, nh_t nh_fn)
+{
+ struct nhpoly1305_state *state = shash_desc_ctx(desc);
+ const struct nhpoly1305_key *key = crypto_shash_ctx(desc->tfm);
+
+ if (state->buflen) {
+ memset(&state->buffer[state->buflen], 0,
+ NH_MESSAGE_UNIT - state->buflen);
+ nhpoly1305_units(state, key, state->buffer, NH_MESSAGE_UNIT,
+ nh_fn);
+ }
+
+ if (state->nh_remaining)
+ process_nh_hash_value(state, key);
+
+ poly1305_core_emit(&state->poly_state, dst);
+ return 0;
+}
+EXPORT_SYMBOL(crypto_nhpoly1305_final_helper);
+
+int crypto_nhpoly1305_final(struct shash_desc *desc, u8 *dst)
+{
+ return crypto_nhpoly1305_final_helper(desc, dst, nh_generic);
+}
+EXPORT_SYMBOL(crypto_nhpoly1305_final);
+
+static struct shash_alg nhpoly1305_alg = {
+ .base.cra_name = "nhpoly1305",
+ .base.cra_driver_name = "nhpoly1305-generic",
+ .base.cra_priority = 100,
+ .base.cra_ctxsize = sizeof(struct nhpoly1305_key),
+ .base.cra_module = THIS_MODULE,
+ .digestsize = POLY1305_DIGEST_SIZE,
+ .init = crypto_nhpoly1305_init,
+ .update = crypto_nhpoly1305_update,
+ .final = crypto_nhpoly1305_final,
+ .setkey = crypto_nhpoly1305_setkey,
+ .descsize = sizeof(struct nhpoly1305_state),
+};
+
+static int __init nhpoly1305_mod_init(void)
+{
+ return crypto_register_shash(&nhpoly1305_alg);
+}
+
+static void __exit nhpoly1305_mod_exit(void)
+{
+ crypto_unregister_shash(&nhpoly1305_alg);
+}
+
+module_init(nhpoly1305_mod_init);
+module_exit(nhpoly1305_mod_exit);
+
+MODULE_DESCRIPTION("NHPoly1305 ε-almost-∆-universal hash function");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Eric Biggers <[email protected]>");
+MODULE_ALIAS_CRYPTO("nhpoly1305");
+MODULE_ALIAS_CRYPTO("nhpoly1305-generic");
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 3ff70ebc745c..039a5d850a29 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -3291,6 +3291,12 @@ static const struct alg_test_desc alg_test_descs[] = {
.dec = __VECS(morus640_dec_tv_template),
}
}
+ }, {
+ .alg = "nhpoly1305",
+ .test = alg_test_hash,
+ .suite = {
+ .hash = __VECS(nhpoly1305_tv_template)
+ }
}, {
.alg = "ofb(aes)",
.test = alg_test_skcipher,
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index 3b57b2701fcb..40197d74b3d5 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -27,7 +27,7 @@
#define MAX_DIGEST_SIZE 64
#define MAX_TAP 8
-#define MAX_KEYLEN 160
+#define MAX_KEYLEN 1088
#define MAX_IVLEN 32
struct hash_testvec {
@@ -35,10 +35,10 @@ struct hash_testvec {
const char *key;
const char *plaintext;
const char *digest;
- unsigned char tap[MAX_TAP];
+ unsigned short tap[MAX_TAP];
+ unsigned short np;
unsigned short psize;
- unsigned char np;
- unsigned char ksize;
+ unsigned short ksize;
};
/*
@@ -5593,6 +5593,1238 @@ static const struct hash_testvec poly1305_tv_template[] = {
},
};
+/* NHPoly1305 test vectors from https://github.com/google/adiantum */
+static const struct hash_testvec nhpoly1305_tv_template[] = {
+ {
+ .key = "\xd2\x5d\x4c\xdd\x8d\x2b\x7f\x7a"
+ "\xd9\xbe\x71\xec\xd1\x83\x52\xe3"
+ "\xe1\xad\xd7\x5c\x0a\x75\x9d\xec"
+ "\x1d\x13\x7e\x5d\x71\x07\xc9\xe4"
+ "\x57\x2d\x44\x68\xcf\xd8\xd6\xc5"
+ "\x39\x69\x7d\x32\x75\x51\x4f\x7e"
+ "\xb2\x4c\xc6\x90\x51\x6e\xd9\xd6"
+ "\xa5\x8b\x2d\xf1\x94\xf9\xf7\x5e"
+ "\x2c\x84\x7b\x41\x0f\x88\x50\x89"
+ "\x30\xd9\xa1\x38\x46\x6c\xc0\x4f"
+ "\xe8\xdf\xdc\x66\xab\x24\x43\x41"
+ "\x91\x55\x29\x65\x86\x28\x5e\x45"
+ "\xd5\x2d\xb7\x80\x08\x9a\xc3\xd4"
+ "\x9a\x77\x0a\xd4\xef\x3e\xe6\x3f"
+ "\x6f\x2f\x9b\x3a\x7d\x12\x1e\x80"
+ "\x6c\x44\xa2\x25\xe1\xf6\x60\xe9"
+ "\x0d\xaf\xc5\x3c\xa5\x79\xae\x64"
+ "\xbc\xa0\x39\xa3\x4d\x10\xe5\x4d"
+ "\xd5\xe7\x89\x7a\x13\xee\x06\x78"
+ "\xdc\xa4\xdc\x14\x27\xe6\x49\x38"
+ "\xd0\xe0\x45\x25\x36\xc5\xf4\x79"
+ "\x2e\x9a\x98\x04\xe4\x2b\x46\x52"
+ "\x7c\x33\xca\xe2\x56\x51\x50\xe2"
+ "\xa5\x9a\xae\x18\x6a\x13\xf8\xd2"
+ "\x21\x31\x66\x02\xe2\xda\x8d\x7e"
+ "\x41\x19\xb2\x61\xee\x48\x8f\xf1"
+ "\x65\x24\x2e\x1e\x68\xce\x05\xd9"
+ "\x2a\xcf\xa5\x3a\x57\xdd\x35\x91"
+ "\x93\x01\xca\x95\xfc\x2b\x36\x04"
+ "\xe6\x96\x97\x28\xf6\x31\xfe\xa3"
+ "\x9d\xf6\x6a\x1e\x80\x8d\xdc\xec"
+ "\xaf\x66\x11\x13\x02\x88\xd5\x27"
+ "\x33\xb4\x1a\xcd\xa3\xf6\xde\x31"
+ "\x8e\xc0\x0e\x6c\xd8\x5a\x97\x5e"
+ "\xdd\xfd\x60\x69\x38\x46\x3f\x90"
+ "\x5e\x97\xd3\x32\x76\xc7\x82\x49"
+ "\xfe\xba\x06\x5f\x2f\xa2\xfd\xff"
+ "\x80\x05\x40\xe4\x33\x03\xfb\x10"
+ "\xc0\xde\x65\x8c\xc9\x8d\x3a\x9d"
+ "\xb5\x7b\x36\x4b\xb5\x0c\xcf\x00"
+ "\x9c\x87\xe4\x49\xad\x90\xda\x4a"
+ "\xdd\xbd\xff\xe2\x32\x57\xd6\x78"
+ "\x36\x39\x6c\xd3\x5b\x9b\x88\x59"
+ "\x2d\xf0\x46\xe4\x13\x0e\x2b\x35"
+ "\x0d\x0f\x73\x8a\x4f\x26\x84\x75"
+ "\x88\x3c\xc5\x58\x66\x18\x1a\xb4"
+ "\x64\x51\x34\x27\x1b\xa4\x11\xc9"
+ "\x6d\x91\x8a\xfa\x32\x60\x9d\xd7"
+ "\x87\xe5\xaa\x43\x72\xf8\xda\xd1"
+ "\x48\x44\x13\x61\xdc\x8c\x76\x17"
+ "\x0c\x85\x4e\xf3\xdd\xa2\x42\xd2"
+ "\x74\xc1\x30\x1b\xeb\x35\x31\x29"
+ "\x5b\xd7\x4c\x94\x46\x35\xa1\x23"
+ "\x50\xf2\xa2\x8e\x7e\x4f\x23\x4f"
+ "\x51\xff\xe2\xc9\xa3\x7d\x56\x8b"
+ "\x41\xf2\xd0\xc5\x57\x7e\x59\xac"
+ "\xbb\x65\xf3\xfe\xf7\x17\xef\x63"
+ "\x7c\x6f\x23\xdd\x22\x8e\xed\x84"
+ "\x0e\x3b\x09\xb3\xf3\xf4\x8f\xcd"
+ "\x37\xa8\xe1\xa7\x30\xdb\xb1\xa2"
+ "\x9c\xa2\xdf\x34\x17\x3e\x68\x44"
+ "\xd0\xde\x03\x50\xd1\x48\x6b\x20"
+ "\xe2\x63\x45\xa5\xea\x87\xc2\x42"
+ "\x95\x03\x49\x05\xed\xe0\x90\x29"
+ "\x1a\xb8\xcf\x9b\x43\xcf\x29\x7a"
+ "\x63\x17\x41\x9f\xe0\xc9\x10\xfd"
+ "\x2c\x56\x8c\x08\x55\xb4\xa9\x27"
+ "\x0f\x23\xb1\x05\x6a\x12\x46\xc7"
+ "\xe1\xfe\x28\x93\x93\xd7\x2f\xdc"
+ "\x98\x30\xdb\x75\x8a\xbe\x97\x7a"
+ "\x02\xfb\x8c\xba\xbe\x25\x09\xbe"
+ "\xce\xcb\xa2\xef\x79\x4d\x0e\x9d"
+ "\x1b\x9d\xb6\x39\x34\x38\xfa\x07"
+ "\xec\xe8\xfc\x32\x85\x1d\xf7\x85"
+ "\x63\xc3\x3c\xc0\x02\x75\xd7\x3f"
+ "\xb2\x68\x60\x66\x65\x81\xc6\xb1"
+ "\x42\x65\x4b\x4b\x28\xd7\xc7\xaa"
+ "\x9b\xd2\xdc\x1b\x01\xe0\x26\x39"
+ "\x01\xc1\x52\x14\xd1\x3f\xb7\xe6"
+ "\x61\x41\xc7\x93\xd2\xa2\x67\xc6"
+ "\xf7\x11\xb5\xf5\xea\xdd\x19\xfb"
+ "\x4d\x21\x12\xd6\x7d\xf1\x10\xb0"
+ "\x89\x07\xc7\x5a\x52\x73\x70\x2f"
+ "\x32\xef\x65\x2b\x12\xb2\xf0\xf5"
+ "\x20\xe0\x90\x59\x7e\x64\xf1\x4c"
+ "\x41\xb3\xa5\x91\x08\xe6\x5e\x5f"
+ "\x05\x56\x76\xb4\xb0\xcd\x70\x53"
+ "\x10\x48\x9c\xff\xc2\x69\x55\x24"
+ "\x87\xef\x84\xea\xfb\xa7\xbf\xa0"
+ "\x91\x04\xad\x4f\x8b\x57\x54\x4b"
+ "\xb6\xe9\xd1\xac\x37\x2f\x1d\x2e"
+ "\xab\xa5\xa4\xe8\xff\xfb\xd9\x39"
+ "\x2f\xb7\xac\xd1\xfe\x0b\x9a\x80"
+ "\x0f\xb6\xf4\x36\x39\x90\x51\xe3"
+ "\x0a\x2f\xb6\x45\x76\x89\xcd\x61"
+ "\xfe\x48\x5f\x75\x1d\x13\x00\x62"
+ "\x80\x24\x47\xe7\xbc\x37\xd7\xe3"
+ "\x15\xe8\x68\x22\xaf\x80\x6f\x4b"
+ "\xa8\x9f\x01\x10\x48\x14\xc3\x02"
+ "\x52\xd2\xc7\x75\x9b\x52\x6d\x30"
+ "\xac\x13\x85\xc8\xf7\xa3\x58\x4b"
+ "\x49\xf7\x1c\x45\x55\x8c\x39\x9a"
+ "\x99\x6d\x97\x27\x27\xe6\xab\xdd"
+ "\x2c\x42\x1b\x35\xdd\x9d\x73\xbb"
+ "\x6c\xf3\x64\xf1\xfb\xb9\xf7\xe6"
+ "\x4a\x3c\xc0\x92\xc0\x2e\xb7\x1a"
+ "\xbe\xab\xb3\x5a\xe5\xea\xb1\x48"
+ "\x58\x13\x53\x90\xfd\xc3\x8e\x54"
+ "\xf9\x18\x16\x73\xe8\xcb\x6d\x39"
+ "\x0e\xd7\xe0\xfe\xb6\x9f\x43\x97"
+ "\xe8\xd0\x85\x56\x83\x3e\x98\x68"
+ "\x7f\xbd\x95\xa8\x9a\x61\x21\x8f"
+ "\x06\x98\x34\xa6\xc8\xd6\x1d\xf3"
+ "\x3d\x43\xa4\x9a\x8c\xe5\xd3\x5a"
+ "\x32\xa2\x04\x22\xa4\x19\x1a\x46"
+ "\x42\x7e\x4d\xe5\xe0\xe6\x0e\xca"
+ "\xd5\x58\x9d\x2c\xaf\xda\x33\x5c"
+ "\xb0\x79\x9e\xc9\xfc\xca\xf0\x2f"
+ "\xa8\xb2\x77\xeb\x7a\xa2\xdd\x37"
+ "\x35\x83\x07\xd6\x02\x1a\xb6\x6c"
+ "\x24\xe2\x59\x08\x0e\xfd\x3e\x46"
+ "\xec\x40\x93\xf4\x00\x26\x4f\x2a"
+ "\xff\x47\x2f\xeb\x02\x92\x26\x5b"
+ "\x53\x17\xc2\x8d\x2a\xc7\xa3\x1b"
+ "\xcd\xbc\xa7\xe8\xd1\x76\xe3\x80"
+ "\x21\xca\x5d\x3b\xe4\x9c\x8f\xa9"
+ "\x5b\x7f\x29\x7f\x7c\xd8\xed\x6d"
+ "\x8c\xb2\x86\x85\xe7\x77\xf2\x85"
+ "\xab\x38\xa9\x9d\xc1\x4e\xc5\x64"
+ "\x33\x73\x8b\x59\x03\xad\x05\xdf"
+ "\x25\x98\x31\xde\xef\x13\xf1\x9b"
+ "\x3c\x91\x9d\x7b\xb1\xfa\xe6\xbf"
+ "\x5b\xed\xa5\x55\xe6\xea\x6c\x74"
+ "\xf4\xb9\xe4\x45\x64\x72\x81\xc2"
+ "\x4c\x28\xd4\xcd\xac\xe2\xde\xf9"
+ "\xeb\x5c\xeb\x61\x60\x5a\xe5\x28",
+ .ksize = 1088,
+ .plaintext = "",
+ .psize = 0,
+ .digest = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ }, {
+ .key = "\x29\x21\x43\xcb\xcb\x13\x07\xde"
+ "\xbf\x48\xdf\x8a\x7f\xa2\x84\xde"
+ "\x72\x23\x9d\xf5\xf0\x07\xf2\x4c"
+ "\x20\x3a\x93\xb9\xcd\x5d\xfe\xcb"
+ "\x99\x2c\x2b\x58\xc6\x50\x5f\x94"
+ "\x56\xc3\x7c\x0d\x02\x3f\xb8\x5e"
+ "\x7b\xc0\x6c\x51\x34\x76\xc0\x0e"
+ "\xc6\x22\xc8\x9e\x92\xa0\x21\xc9"
+ "\x85\x5c\x7c\xf8\xe2\x64\x47\xc9"
+ "\xe4\xa2\x57\x93\xf8\xa2\x69\xcd"
+ "\x62\x98\x99\xf4\xd7\x7b\x14\xb1"
+ "\xd8\x05\xff\x04\x15\xc9\xe1\x6e"
+ "\x9b\xe6\x50\x6b\x0b\x3f\x22\x1f"
+ "\x08\xde\x0c\x5b\x08\x7e\xc6\x2f"
+ "\x6c\xed\xd6\xb2\x15\xa4\xb3\xf9"
+ "\xa7\x46\x38\x2a\xea\x69\xa5\xde"
+ "\x02\xc3\x96\x89\x4d\x55\x3b\xed"
+ "\x3d\x3a\x85\x77\xbf\x97\x45\x5c"
+ "\x9e\x02\x69\xe2\x1b\x68\xbe\x96"
+ "\xfb\x64\x6f\x0f\xf6\x06\x40\x67"
+ "\xfa\x04\xe3\x55\xfa\xbe\xa4\x60"
+ "\xef\x21\x66\x97\xe6\x9d\x5c\x1f"
+ "\x62\x37\xaa\x31\xde\xe4\x9c\x28"
+ "\x95\xe0\x22\x86\xf4\x4d\xf3\x07"
+ "\xfd\x5f\x3a\x54\x2c\x51\x80\x71"
+ "\xba\x78\x69\x5b\x65\xab\x1f\x81"
+ "\xed\x3b\xff\x34\xa3\xfb\xbc\x73"
+ "\x66\x7d\x13\x7f\xdf\x6e\xe2\xe2"
+ "\xeb\x4f\x6c\xda\x7d\x33\x57\xd0"
+ "\xd3\x7c\x95\x4f\x33\x58\x21\xc7"
+ "\xc0\xe5\x6f\x42\x26\xc6\x1f\x5e"
+ "\x85\x1b\x98\x9a\xa2\x1e\x55\x77"
+ "\x23\xdf\x81\x5e\x79\x55\x05\xfc"
+ "\xfb\xda\xee\xba\x5a\xba\xf7\x77"
+ "\x7f\x0e\xd3\xe1\x37\xfe\x8d\x2b"
+ "\xd5\x3f\xfb\xd0\xc0\x3c\x0b\x3f"
+ "\xcf\x3c\x14\xcf\xfb\x46\x72\x4c"
+ "\x1f\x39\xe2\xda\x03\x71\x6d\x23"
+ "\xef\x93\xcd\x39\xd9\x37\x80\x4d"
+ "\x65\x61\xd1\x2c\x03\xa9\x47\x72"
+ "\x4d\x1e\x0e\x16\x33\x0f\x21\x17"
+ "\xec\x92\xea\x6f\x37\x22\xa4\xd8"
+ "\x03\x33\x9e\xd8\x03\x69\x9a\xe8"
+ "\xb2\x57\xaf\x78\x99\x05\x12\xab"
+ "\x48\x90\x80\xf0\x12\x9b\x20\x64"
+ "\x7a\x1d\x47\x5f\xba\x3c\xf9\xc3"
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+ "\xbd\x96\x59\xb3\x8b\x32\x7a\x92"
+ "\x9f\xd8\x25\x2b\xdf\xc0\x4c\xda",
+ .ksize = 1088,
+ .plaintext = "\xbc\xda\x81\xa8\x78\x79\x1c\xbf"
+ "\x77\x53\xba\x4c\x30\x5b\xb8\x33",
+ .psize = 16,
+ .digest = "\x04\xbf\x7f\x6a\xce\x72\xea\x6a"
+ "\x79\xdb\xb0\xc9\x60\xf6\x12\xcc",
+ .np = 6,
+ .tap = { 4, 4, 1, 1, 1, 5 },
+ }, {
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+ "\x62\x44\x0a\x4a\xce\x78\x47\x22",
+ .ksize = 1088,
+ .plaintext = "\x8e\xb0\x4c\xde\x9c\x4a\x04\x5a"
+ "\xf6\xa9\x7f\x45\x25\xa5\x7b\x3a"
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+ "\x74\xd1\xb7\xc0\x5a\x34\xb7\xae"
+ "\x76\x65\x2e\xbc\x36\xb9\x04\x95"
+ "\x42\xe9\x6f\xca\x78\xb3\x72\x07"
+ "\xa3\xba\x02\x94\x67\x4c\xb1\xd7"
+ "\xe9\x30\x0d\xf0\x3b\xb8\x10\x6d"
+ "\xea\x2b\x21\xbf\x74\x59\x82\x97"
+ "\x85\xaa\xf1\xd7\x54\x39\xeb\x05"
+ "\xbd\xf3\x40\xa0\x97\xe6\x74\xfe"
+ "\xb4\x82\x5b\xb1\x36\xcb\xe8\x0d"
+ "\xce\x14\xd9\xdf\xf1\x94\x22\xcd"
+ "\xd6\x00\xba\x04\x4c\x05\x0c\xc0"
+ "\xd1\x5a\xeb\x52\xd5\xa8\x8e\xc8"
+ "\x97\xa1\xaa\xc1\xea\xc1\xbe\x7c"
+ "\x36\xb3\x36\xa0\xc6\x76\x66\xc5"
+ "\xe2\xaf\xd6\x5c\xe2\xdb\x2c\xb3"
+ "\x6c\xb9\x99\x7f\xff\x9f\x03\x24"
+ "\xe1\x51\x44\x66\xd8\x0c\x5d\x7f"
+ "\x5c\x85\x22\x2a\xcf\x6d\x79\x28"
+ "\xab\x98\x01\x72\xfe\x80\x87\x5f"
+ "\x46\xba\xef\x81\x24\xee\xbf\xb0"
+ "\x24\x74\xa3\x65\x97\x12\xc4\xaf"
+ "\x8b\xa0\x39\xda\x8a\x7e\x74\x6e"
+ "\x1b\x42\xb4\x44\x37\xfc\x59\xfd"
+ "\x86\xed\xfb\x8c\x66\x33\xda\x63"
+ "\x75\xeb\xe1\xa4\x85\x4f\x50\x8f"
+ "\x83\x66\x0d\xd3\x37\xfa\xe6\x9c"
+ "\x4f\x30\x87\x35\x18\xe3\x0b\xb7"
+ "\x6e\x64\x54\xcd\x70\xb3\xde\x54"
+ "\xb7\x1d\xe6\x4c\x4d\x55\x12\x12"
+ "\xaf\x5f\x7f\x5e\xee\x9d\xe8\x8e"
+ "\x32\x9d\x4e\x75\xeb\xc6\xdd\xaa"
+ "\x48\x82\xa4\x3f\x3c\xd7\xd3\xa8"
+ "\x63\x9e\x64\xfe\xe3\x97\x00\x62"
+ "\xe5\x40\x5d\xc3\xad\x72\xe1\x28"
+ "\x18\x50\xb7\x75\xef\xcd\x23\xbf"
+ "\x3f\xc0\x51\x36\xf8\x41\xc3\x08"
+ "\xcb\xf1\x8d\x38\x34\xbd\x48\x45"
+ "\x75\xed\xbc\x65\x7b\xb5\x0c\x9b"
+ "\xd7\x67\x7d\x27\xb4\xc4\x80\xd7"
+ "\xa9\xb9\xc7\x4a\x97\xaa\xda\xc8"
+ "\x3c\x74\xcf\x36\x8f\xe4\x41\xe3"
+ "\xd4\xd3\x26\xa7\xf3\x23\x9d\x8f"
+ "\x6c\x20\x05\x32\x3e\xe0\xc3\xc8"
+ "\x56\x3f\xa7\x09\xb7\xfb\xc7\xf7"
+ "\xbe\x2a\xdd\x0f\x06\x7b\x0d\xdd"
+ "\xb0\xb4\x86\x17\xfd\xb9\x04\xe5"
+ "\xc0\x64\x5d\xad\x2a\x36\x38\xdb"
+ "\x24\xaf\x5b\xff\xca\xf9\x41\xe8"
+ "\xf9\x2f\x1e\x5e\xf9\xf5\xd5\xf2"
+ "\xb2\x88\xca\xc9\xa1\x31\xe2\xe8"
+ "\x10\x95\x65\xbf\xf1\x11\x61\x7a"
+ "\x30\x1a\x54\x90\xea\xd2\x30\xf6"
+ "\xa5\xad\x60\xf9\x4d\x84\x21\x1b"
+ "\xe4\x42\x22\xc8\x12\x4b\xb0\x58"
+ "\x3e\x9c\x2d\x32\x95\x0a\x8e\xb0"
+ "\x0a\x7e\x77\x2f\xe8\x97\x31\x6a"
+ "\xf5\x59\xb4\x26\xe6\x37\x12\xc9"
+ "\xcb\xa0\x58\x33\x6f\xd5\x55\x55"
+ "\x3c\xa1\x33\xb1\x0b\x7e\x2e\xb4"
+ "\x43\x2a\x84\x39\xf0\x9c\xf4\x69"
+ "\x4f\x1e\x79\xa6\x15\x1b\x87\xbb"
+ "\xdb\x9b\xe0\xf1\x0b\xba\xe3\x6e"
+ "\xcc\x2f\x49\x19\x22\x29\xfc\x71"
+ "\xbb\x77\x38\x18\x61\xaf\x85\x76"
+ "\xeb\xd1\x09\xcc\x86\x04\x20\x9a"
+ "\x66\x53\x2f\x44\x8b\xc6\xa3\xd2"
+ "\x5f\xc7\x79\x82\x66\xa8\x6e\x75"
+ "\x7d\x94\xd1\x86\x75\x0f\xa5\x4f"
+ "\x3c\x7a\x33\xce\xd1\x6e\x9d\x7b"
+ "\x1f\x91\x37\xb8\x37\x80\xfb\xe0"
+ "\x52\x26\xd0\x9a\xd4\x48\x02\x41"
+ "\x05\xe3\x5a\x94\xf1\x65\x61\x19"
+ "\xb8\x88\x4e\x2b\xea\xba\x8b\x58"
+ "\x8b\x42\x01\x00\xa8\xfe\x00\x5c"
+ "\xfe\x1c\xee\x31\x15\x69\xfa\xb3"
+ "\x9b\x5f\x22\x8e\x0d\x2c\xe3\xa5"
+ "\x21\xb9\x99\x8a\x8e\x94\x5a\xef"
+ "\x13\x3e\x99\x96\x79\x6e\xd5\x42"
+ "\x36\x03\xa9\xe2\xca\x65\x4e\x8a"
+ "\x8a\x30\xd2\x7d\x74\xe7\xf0\xaa"
+ "\x23\x26\xdd\xcb\x82\x39\xfc\x9d"
+ "\x51\x76\x21\x80\xa2\xbe\x93\x03"
+ "\x47\xb0\xc1\xb6\xdc\x63\xfd\x9f"
+ "\xca\x9d\xa5\xca\x27\x85\xe2\xd8"
+ "\x15\x5b\x7e\x14\x7a\xc4\x89\xcc"
+ "\x74\x14\x4b\x46\xd2\xce\xac\x39"
+ "\x6b\x6a\x5a\xa4\x0e\xe3\x7b\x15"
+ "\x94\x4b\x0f\x74\xcb\x0c\x7f\xa9"
+ "\xbe\x09\x39\xa3\xdd\x56\x5c\xc7"
+ "\x99\x56\x65\x39\xf4\x0b\x7d\x87"
+ "\xec\xaa\xe3\x4d\x22\x65\x39\x4e",
+ .psize = 1024,
+ .digest = "\x64\x3a\xbc\xc3\x3f\x74\x40\x51"
+ "\x6e\x56\x01\x1a\x51\xec\x36\xde",
+ .np = 8,
+ .tap = { 64, 203, 267, 28, 263, 62, 54, 83 },
+ }, {
+ .key = "\x1b\x82\x2e\x1b\x17\x23\xb9\x6d"
+ "\xdc\x9c\xda\x99\x07\xe3\x5f\xd8"
+ "\xd2\xf8\x43\x80\x8d\x86\x7d\x80"
+ "\x1a\xd0\xcc\x13\xb9\x11\x05\x3f"
+ "\x7e\xcf\x7e\x80\x0e\xd8\x25\x48"
+ "\x8b\xaa\x63\x83\x92\xd0\x72\xf5"
+ "\x4f\x67\x7e\x50\x18\x25\xa4\xd1"
+ "\xe0\x7e\x1e\xba\xd8\xa7\x6e\xdb"
+ "\x1a\xcc\x0d\xfe\x9f\x6d\x22\x35"
+ "\xe1\xe6\xe0\xa8\x7b\x9c\xb1\x66"
+ "\xa3\xf8\xff\x4d\x90\x84\x28\xbc"
+ "\xdc\x19\xc7\x91\x49\xfc\xf6\x33"
+ "\xc9\x6e\x65\x7f\x28\x6f\x68\x2e"
+ "\xdf\x1a\x75\xe9\xc2\x0c\x96\xb9"
+ "\x31\x22\xc4\x07\xc6\x0a\x2f\xfd"
+ "\x36\x06\x5f\x5c\xc5\xb1\x3a\xf4"
+ "\x5e\x48\xa4\x45\x2b\x88\xa7\xee"
+ "\xa9\x8b\x52\xcc\x99\xd9\x2f\xb8"
+ "\xa4\x58\x0a\x13\xeb\x71\x5a\xfa"
+ "\xe5\x5e\xbe\xf2\x64\xad\x75\xbc"
+ "\x0b\x5b\x34\x13\x3b\x23\x13\x9a"
+ "\x69\x30\x1e\x9a\xb8\x03\xb8\x8b"
+ "\x3e\x46\x18\x6d\x38\xd9\xb3\xd8"
+ "\xbf\xf1\xd0\x28\xe6\x51\x57\x80"
+ "\x5e\x99\xfb\xd0\xce\x1e\x83\xf7"
+ "\xe9\x07\x5a\x63\xa9\xef\xce\xa5"
+ "\xfb\x3f\x37\x17\xfc\x0b\x37\x0e"
+ "\xbb\x4b\x21\x62\xb7\x83\x0e\xa9"
+ "\x9e\xb0\xc4\xad\x47\xbe\x35\xe7"
+ "\x51\xb2\xf2\xac\x2b\x65\x7b\x48"
+ "\xe3\x3f\x5f\xb6\x09\x04\x0c\x58"
+ "\xce\x99\xa9\x15\x2f\x4e\xc1\xf2"
+ "\x24\x48\xc0\xd8\x6c\xd3\x76\x17"
+ "\x83\x5d\xe6\xe3\xfd\x01\x8e\xf7"
+ "\x42\xa5\x04\x29\x30\xdf\xf9\x00"
+ "\x4a\xdc\x71\x22\x1a\x33\x15\xb6"
+ "\xd7\x72\xfb\x9a\xb8\xeb\x2b\x38"
+ "\xea\xa8\x61\xa8\x90\x11\x9d\x73"
+ "\x2e\x6c\xce\x81\x54\x5a\x9f\xcd"
+ "\xcf\xd5\xbd\x26\x5d\x66\xdb\xfb"
+ "\xdc\x1e\x7c\x10\xfe\x58\x82\x10"
+ "\x16\x24\x01\xce\x67\x55\x51\xd1"
+ "\xdd\x6b\x44\xa3\x20\x8e\xa9\xa6"
+ "\x06\xa8\x29\x77\x6e\x00\x38\x5b"
+ "\xde\x4d\x58\xd8\x1f\x34\xdf\xf9"
+ "\x2c\xac\x3e\xad\xfb\x92\x0d\x72"
+ "\x39\xa4\xac\x44\x10\xc0\x43\xc4"
+ "\xa4\x77\x3b\xfc\xc4\x0d\x37\xd3"
+ "\x05\x84\xda\x53\x71\xf8\x80\xd3"
+ "\x34\x44\xdb\x09\xb4\x2b\x8e\xe3"
+ "\x00\x75\x50\x9e\x43\x22\x00\x0b"
+ "\x7c\x70\xab\xd4\x41\xf1\x93\xcd"
+ "\x25\x2d\x84\x74\xb5\xf2\x92\xcd"
+ "\x0a\x28\xea\x9a\x49\x02\x96\xcb"
+ "\x85\x9e\x2f\x33\x03\x86\x1d\xdc"
+ "\x1d\x31\xd5\xfc\x9d\xaa\xc5\xe9"
+ "\x9a\xc4\x57\xf5\x35\xed\xf4\x4b"
+ "\x3d\x34\xc2\x29\x13\x86\x36\x42"
+ "\x5d\xbf\x90\x86\x13\x77\xe5\xc3"
+ "\x62\xb4\xfe\x0b\x70\x39\x35\x65"
+ "\x02\xea\xf6\xce\x57\x0c\xbb\x74"
+ "\x29\xe3\xfd\x60\x90\xfd\x10\x38"
+ "\xd5\x4e\x86\xbd\x37\x70\xf0\x97"
+ "\xa6\xab\x3b\x83\x64\x52\xca\x66"
+ "\x2f\xf9\xa4\xca\x3a\x55\x6b\xb0"
+ "\xe8\x3a\x34\xdb\x9e\x48\x50\x2f"
+ "\x3b\xef\xfd\x08\x2d\x5f\xc1\x37"
+ "\x5d\xbe\x73\xe4\xd8\xe9\xac\xca"
+ "\x8a\xaa\x48\x7c\x5c\xf4\xa6\x96"
+ "\x5f\xfa\x70\xa6\xb7\x8b\x50\xcb"
+ "\xa6\xf5\xa9\xbd\x7b\x75\x4c\x22"
+ "\x0b\x19\x40\x2e\xc9\x39\x39\x32"
+ "\x83\x03\xa8\xa4\x98\xe6\x8e\x16"
+ "\xb9\xde\x08\xc5\xfc\xbf\xad\x39"
+ "\xa8\xc7\x93\x6c\x6f\x23\xaf\xc1"
+ "\xab\xe1\xdf\xbb\x39\xae\x93\x29"
+ "\x0e\x7d\x80\x8d\x3e\x65\xf3\xfd"
+ "\x96\x06\x65\x90\xa1\x28\x64\x4b"
+ "\x69\xf9\xa8\x84\x27\x50\xfc\x87"
+ "\xf7\xbf\x55\x8e\x56\x13\x58\x7b"
+ "\x85\xb4\x6a\x72\x0f\x40\xf1\x4f"
+ "\x83\x81\x1f\x76\xde\x15\x64\x7a"
+ "\x7a\x80\xe4\xc7\x5e\x63\x01\x91"
+ "\xd7\x6b\xea\x0b\x9b\xa2\x99\x3b"
+ "\x6c\x88\xd8\xfd\x59\x3c\x8d\x22"
+ "\x86\x56\xbe\xab\xa1\x37\x08\x01"
+ "\x50\x85\x69\x29\xee\x9f\xdf\x21"
+ "\x3e\x20\x20\xf5\xb0\xbb\x6b\xd0"
+ "\x9c\x41\x38\xec\x54\x6f\x2d\xbd"
+ "\x0f\xe1\xbd\xf1\x2b\x6e\x60\x56"
+ "\x29\xe5\x7a\x70\x1c\xe2\xfc\x97"
+ "\x82\x68\x67\xd9\x3d\x1f\xfb\xd8"
+ "\x07\x9f\xbf\x96\x74\xba\x6a\x0e"
+ "\x10\x48\x20\xd8\x13\x1e\xb5\x44"
+ "\xf2\xcc\xb1\x8b\xfb\xbb\xec\xd7"
+ "\x37\x70\x1f\x7c\x55\xd2\x4b\xb9"
+ "\xfd\x70\x5e\xa3\x91\x73\x63\x52"
+ "\x13\x47\x5a\x06\xfb\x01\x67\xa5"
+ "\xc0\xd0\x49\x19\x56\x66\x9a\x77"
+ "\x64\xaf\x8c\x25\x91\x52\x87\x0e"
+ "\x18\xf3\x5f\x97\xfd\x71\x13\xf8"
+ "\x05\xa5\x39\xcc\x65\xd3\xcc\x63"
+ "\x5b\xdb\x5f\x7e\x5f\x6e\xad\xc4"
+ "\xf4\xa0\xc5\xc2\x2b\x4d\x97\x38"
+ "\x4f\xbc\xfa\x33\x17\xb4\x47\xb9"
+ "\x43\x24\x15\x8d\xd2\xed\x80\x68"
+ "\x84\xdb\x04\x80\xca\x5e\x6a\x35"
+ "\x2c\x2c\xe7\xc5\x03\x5f\x54\xb0"
+ "\x5e\x4f\x1d\x40\x54\x3d\x78\x9a"
+ "\xac\xda\x80\x27\x4d\x15\x4c\x1a"
+ "\x6e\x80\xc9\xc4\x3b\x84\x0e\xd9"
+ "\x2e\x93\x01\x8c\xc3\xc8\x91\x4b"
+ "\xb3\xaa\x07\x04\x68\x5b\x93\xa5"
+ "\xe7\xc4\x9d\xe7\x07\xee\xf5\x3b"
+ "\x40\x89\xcc\x60\x34\x9d\xb4\x06"
+ "\x1b\xef\x92\xe6\xc1\x2a\x7d\x0f"
+ "\x81\xaa\x56\xe3\xd7\xed\xa7\xd4"
+ "\xa7\x3a\x49\xc4\xad\x81\x5c\x83"
+ "\x55\x8e\x91\x54\xb7\x7d\x65\xa5"
+ "\x06\x16\xd5\x9a\x16\xc1\xb0\xa2"
+ "\x06\xd8\x98\x47\x73\x7e\x73\xa0"
+ "\xb8\x23\xb1\x52\xbf\x68\x74\x5d"
+ "\x0b\xcb\xfa\x8c\x46\xe3\x24\xe6"
+ "\xab\xd4\x69\x8d\x8c\xf2\x8a\x59"
+ "\xbe\x48\x46\x50\x8c\x9a\xe8\xe3"
+ "\x31\x55\x0a\x06\xed\x4f\xf8\xb7"
+ "\x4f\xe3\x85\x17\x30\xbd\xd5\x20"
+ "\xe7\x5b\xb2\x32\xcf\x6b\x16\x44"
+ "\xd2\xf5\x7e\xd7\xd1\x2f\xee\x64"
+ "\x3e\x9d\x10\xef\x27\x35\x43\x64"
+ "\x67\xfb\x7a\x7b\xe0\x62\x31\x9a"
+ "\x4d\xdf\xa5\xab\xc0\x20\xbb\x01"
+ "\xe9\x7b\x54\xf1\xde\xb2\x79\x50"
+ "\x6c\x4b\x91\xdb\x7f\xbb\x50\xc1"
+ "\x55\x44\x38\x9a\xe0\x9f\xe8\x29"
+ "\x6f\x15\xf8\x4e\xa6\xec\xa0\x60",
+ .ksize = 1088,
+ .plaintext = "\x15\x68\x9e\x2f\xad\x15\x52\xdf"
+ "\xf0\x42\x62\x24\x2a\x2d\xea\xbf"
+ "\xc7\xf3\xb4\x1a\xf5\xed\xb2\x08"
+ "\x15\x60\x1c\x00\x77\xbf\x0b\x0e"
+ "\xb7\x2c\xcf\x32\x3a\xc7\x01\x77"
+ "\xef\xa6\x75\xd0\x29\xc7\x68\x20"
+ "\xb2\x92\x25\xbf\x12\x34\xe9\xa4"
+ "\xfd\x32\x7b\x3f\x7c\xbd\xa5\x02"
+ "\x38\x41\xde\xc9\xc1\x09\xd9\xfc"
+ "\x6e\x78\x22\x83\x18\xf7\x50\x8d"
+ "\x8f\x9c\x2d\x02\xa5\x30\xac\xff"
+ "\xea\x63\x2e\x80\x37\x83\xb0\x58"
+ "\xda\x2f\xef\x21\x55\xba\x7b\xb1"
+ "\xb6\xed\xf5\xd2\x4d\xaa\x8c\xa9"
+ "\xdd\xdb\x0f\xb4\xce\xc1\x9a\xb1"
+ "\xc1\xdc\xbd\xab\x86\xc2\xdf\x0b"
+ "\xe1\x2c\xf9\xbe\xf6\xd8\xda\x62"
+ "\x72\xdd\x98\x09\x52\xc0\xc4\xb6"
+ "\x7b\x17\x5c\xf5\xd8\x4b\x88\xd6"
+ "\x6b\xbf\x84\x4a\x3f\xf5\x4d\xd2"
+ "\x94\xe2\x9c\xff\xc7\x3c\xd9\xc8"
+ "\x37\x38\xbc\x8c\xf3\xe7\xb7\xd0"
+ "\x1d\x78\xc4\x39\x07\xc8\x5e\x79"
+ "\xb6\x5a\x90\x5b\x6e\x97\xc9\xd4"
+ "\x82\x9c\xf3\x83\x7a\xe7\x97\xfc"
+ "\x1d\xbb\xef\xdb\xce\xe0\x82\xad"
+ "\xca\x07\x6c\x54\x62\x6f\x81\xe6"
+ "\x7a\x5a\x96\x6e\x80\x3a\xa2\x37"
+ "\x6f\xc6\xa4\x29\xc3\x9e\x19\x94"
+ "\x9f\xb0\x3e\x38\xfb\x3c\x2b\x7d"
+ "\xaa\xb8\x74\xda\x54\x23\x51\x12"
+ "\x4b\x96\x36\x8f\x91\x4f\x19\x37"
+ "\x83\xc9\xdd\xc7\x1a\x32\x2d\xab"
+ "\xc7\x89\xe2\x07\x47\x6c\xe8\xa6"
+ "\x70\x6b\x8e\x0c\xda\x5c\x6a\x59"
+ "\x27\x33\x0e\xe1\xe1\x20\xe8\xc8"
+ "\xae\xdc\xd0\xe3\x6d\xa8\xa6\x06"
+ "\x41\xb4\xd4\xd4\xcf\x91\x3e\x06"
+ "\xb0\x9a\xf7\xf1\xaa\xa6\x23\x92"
+ "\x10\x86\xf0\x94\xd1\x7c\x2e\x07"
+ "\x30\xfb\xc5\xd8\xf3\x12\xa9\xe8"
+ "\x22\x1c\x97\x1a\xad\x96\xb0\xa1"
+ "\x72\x6a\x6b\xb4\xfd\xf7\xe8\xfa"
+ "\xe2\x74\xd8\x65\x8d\x35\x17\x4b"
+ "\x00\x23\x5c\x8c\x70\xad\x71\xa2"
+ "\xca\xc5\x6c\x59\xbf\xb4\xc0\x6d"
+ "\x86\x98\x3e\x19\x5a\x90\x92\xb1"
+ "\x66\x57\x6a\x91\x68\x7c\xbc\xf3"
+ "\xf1\xdb\x94\xf8\x48\xf1\x36\xd8"
+ "\x78\xac\x1c\xa9\xcc\xd6\x27\xba"
+ "\x91\x54\x22\xf5\xe6\x05\x3f\xcc"
+ "\xc2\x8f\x2c\x3b\x2b\xc3\x2b\x2b"
+ "\x3b\xb8\xb6\x29\xb7\x2f\x94\xb6"
+ "\x7b\xfc\x94\x3e\xd0\x7a\x41\x59"
+ "\x7b\x1f\x9a\x09\xa6\xed\x4a\x82"
+ "\x9d\x34\x1c\xbd\x4e\x1c\x3a\x66"
+ "\x80\x74\x0e\x9a\x4f\x55\x54\x47"
+ "\x16\xba\x2a\x0a\x03\x35\x99\xa3"
+ "\x5c\x63\x8d\xa2\x72\x8b\x17\x15"
+ "\x68\x39\x73\xeb\xec\xf2\xe8\xf5"
+ "\x95\x32\x27\xd6\xc4\xfe\xb0\x51"
+ "\xd5\x0c\x50\xc5\xcd\x6d\x16\xb3"
+ "\xa3\x1e\x95\x69\xad\x78\x95\x06"
+ "\xb9\x46\xf2\x6d\x24\x5a\x99\x76"
+ "\x73\x6a\x91\xa6\xac\x12\xe1\x28"
+ "\x79\xbc\x08\x4e\x97\x00\x98\x63"
+ "\x07\x1c\x4e\xd1\x68\xf3\xb3\x81"
+ "\xa8\xa6\x5f\xf1\x01\xc9\xc1\xaf"
+ "\x3a\x96\xf9\x9d\xb5\x5a\x5f\x8f"
+ "\x7e\xc1\x7e\x77\x0a\x40\xc8\x8e"
+ "\xfc\x0e\xed\xe1\x0d\xb0\xe5\x5e"
+ "\x5e\x6f\xf5\x7f\xab\x33\x7d\xcd"
+ "\xf0\x09\x4b\xb2\x11\x37\xdc\x65"
+ "\x97\x32\x62\x71\x3a\x29\x54\xb9"
+ "\xc7\xa4\xbf\x75\x0f\xf9\x40\xa9"
+ "\x8d\xd7\x8b\xa7\xe0\x9a\xbe\x15"
+ "\xc6\xda\xd8\x00\x14\x69\x1a\xaf"
+ "\x5f\x79\xc3\xf5\xbb\x6c\x2a\x9d"
+ "\xdd\x3c\x5f\x97\x21\xe1\x3a\x03"
+ "\x84\x6a\xe9\x76\x11\x1f\xd3\xd5"
+ "\xf0\x54\x20\x4d\xc2\x91\xc3\xa4"
+ "\x36\x25\xbe\x1b\x2a\x06\xb7\xf3"
+ "\xd1\xd0\x55\x29\x81\x4c\x83\xa3"
+ "\xa6\x84\x1e\x5c\xd1\xd0\x6c\x90"
+ "\xa4\x11\xf0\xd7\x63\x6a\x48\x05"
+ "\xbc\x48\x18\x53\xcd\xb0\x8d\xdb"
+ "\xdc\xfe\x55\x11\x5c\x51\xb3\xab"
+ "\xab\x63\x3e\x31\x5a\x8b\x93\x63"
+ "\x34\xa9\xba\x2b\x69\x1a\xc0\xe3"
+ "\xcb\x41\xbc\xd7\xf5\x7f\x82\x3e"
+ "\x01\xa3\x3c\x72\xf4\xfe\xdf\xbe"
+ "\xb1\x67\x17\x2b\x37\x60\x0d\xca"
+ "\x6f\xc3\x94\x2c\xd2\x92\x6d\x9d"
+ "\x75\x18\x77\xaa\x29\x38\x96\xed"
+ "\x0e\x20\x70\x92\xd5\xd0\xb4\x00"
+ "\xc0\x31\xf2\xc9\x43\x0e\x75\x1d"
+ "\x4b\x64\xf2\x1f\xf2\x29\x6c\x7b"
+ "\x7f\xec\x59\x7d\x8c\x0d\xd4\xd3"
+ "\xac\x53\x4c\xa3\xde\x42\x92\x95"
+ "\x6d\xa3\x4f\xd0\xe6\x3d\xe7\xec"
+ "\x7a\x4d\x68\xf1\xfe\x67\x66\x09"
+ "\x83\x22\xb1\x98\x43\x8c\xab\xb8"
+ "\x45\xe6\x6d\xdf\x5e\x50\x71\xce"
+ "\xf5\x4e\x40\x93\x2b\xfa\x86\x0e"
+ "\xe8\x30\xbd\x82\xcc\x1c\x9c\x5f"
+ "\xad\xfd\x08\x31\xbe\x52\xe7\xe6"
+ "\xf2\x06\x01\x62\x25\x15\x99\x74"
+ "\x33\x51\x52\x57\x3f\x57\x87\x61"
+ "\xb9\x7f\x29\x3d\xcd\x92\x5e\xa6"
+ "\x5c\x3b\xf1\xed\x5f\xeb\x82\xed"
+ "\x56\x7b\x61\xe7\xfd\x02\x47\x0e"
+ "\x2a\x15\xa4\xce\x43\x86\x9b\xe1"
+ "\x2b\x4c\x2a\xd9\x42\x97\xf7\x9a"
+ "\xe5\x47\x46\x48\xd3\x55\x6f\x4d"
+ "\xd9\xeb\x4b\xdd\x7b\x21\x2f\xb3"
+ "\xa8\x36\x28\xdf\xca\xf1\xf6\xd9"
+ "\x10\xf6\x1c\xfd\x2e\x0c\x27\xe0"
+ "\x01\xb3\xff\x6d\x47\x08\x4d\xd4"
+ "\x00\x25\xee\x55\x4a\xe9\xe8\x5b"
+ "\xd8\xf7\x56\x12\xd4\x50\xb2\xe5"
+ "\x51\x6f\x34\x63\x69\xd2\x4e\x96"
+ "\x4e\xbc\x79\xbf\x18\xae\xc6\x13"
+ "\x80\x92\x77\xb0\xb4\x0f\x29\x94"
+ "\x6f\x4c\xbb\x53\x11\x36\xc3\x9f"
+ "\x42\x8e\x96\x8a\x91\xc8\xe9\xfc"
+ "\xfe\xbf\x7c\x2d\x6f\xf9\xb8\x44"
+ "\x89\x1b\x09\x53\x0a\x2a\x92\xc3"
+ "\x54\x7a\x3a\xf9\xe2\xe4\x75\x87"
+ "\xa0\x5e\x4b\x03\x7a\x0d\x8a\xf4"
+ "\x55\x59\x94\x2b\x63\x96\x0e\xf5",
+ .psize = 1040,
+ .digest = "\xb5\xb9\x08\xb3\x24\x3e\x03\xf0"
+ "\xd6\x0b\x57\xbc\x0a\x6d\x89\x59",
+ }, {
+ .key = "\xf6\x34\x42\x71\x35\x52\x8b\x58"
+ "\x02\x3a\x8e\x4a\x8d\x41\x13\xe9"
+ "\x7f\xba\xb9\x55\x9d\x73\x4d\xf8"
+ "\x3f\x5d\x73\x15\xff\xd3\x9e\x7f"
+ "\x20\x2a\x6a\xa8\xd1\xf0\x8f\x12"
+ "\x6b\x02\xd8\x6c\xde\xba\x80\x22"
+ "\x19\x37\xc8\xd0\x4e\x89\x17\x7c"
+ "\x7c\xdd\x88\xfd\x41\xc0\x04\xb7"
+ "\x1d\xac\x19\xe3\x20\xc7\x16\xcf"
+ "\x58\xee\x1d\x7a\x61\x69\xa9\x12"
+ "\x4b\xef\x4f\xb6\x38\xdd\x78\xf8"
+ "\x28\xee\x70\x08\xc7\x7c\xcc\xc8"
+ "\x1e\x41\xf5\x80\x86\x70\xd0\xf0"
+ "\xa3\x87\x6b\x0a\x00\xd2\x41\x28"
+ "\x74\x26\xf1\x24\xf3\xd0\x28\x77"
+ "\xd7\xcd\xf6\x2d\x61\xf4\xa2\x13"
+ "\x77\xb4\x6f\xa0\xf4\xfb\xd6\xb5"
+ "\x38\x9d\x5a\x0c\x51\xaf\xad\x63"
+ "\x27\x67\x8c\x01\xea\x42\x1a\x66"
+ "\xda\x16\x7c\x3c\x30\x0c\x66\x53"
+ "\x1c\x88\xa4\x5c\xb2\xe3\x78\x0a"
+ "\x13\x05\x6d\xe2\xaf\xb3\xe4\x75"
+ "\x00\x99\x58\xee\x76\x09\x64\xaa"
+ "\xbb\x2e\xb1\x81\xec\xd8\x0e\xd3"
+ "\x0c\x33\x5d\xb7\x98\xef\x36\xb6"
+ "\xd2\x65\x69\x41\x70\x12\xdc\x25"
+ "\x41\x03\x99\x81\x41\x19\x62\x13"
+ "\xd1\x0a\x29\xc5\x8c\xe0\x4c\xf3"
+ "\xd6\xef\x4c\xf4\x1d\x83\x2e\x6d"
+ "\x8e\x14\x87\xed\x80\xe0\xaa\xd3"
+ "\x08\x04\x73\x1a\x84\x40\xf5\x64"
+ "\xbd\x61\x32\x65\x40\x42\xfb\xb0"
+ "\x40\xf6\x40\x8d\xc7\x7f\x14\xd0"
+ "\x83\x99\xaa\x36\x7e\x60\xc6\xbf"
+ "\x13\x8a\xf9\x21\xe4\x7e\x68\x87"
+ "\xf3\x33\x86\xb4\xe0\x23\x7e\x0a"
+ "\x21\xb1\xf5\xad\x67\x3c\x9c\x9d"
+ "\x09\xab\xaf\x5f\xba\xe0\xd0\x82"
+ "\x48\x22\x70\xb5\x6d\x53\xd6\x0e"
+ "\xde\x64\x92\x41\xb0\xd3\xfb\xda"
+ "\x21\xfe\xab\xea\x20\xc4\x03\x58"
+ "\x18\x2e\x7d\x2f\x03\xa9\x47\x66"
+ "\xdf\x7b\xa4\x6b\x34\x6b\x55\x9c"
+ "\x4f\xd7\x9c\x47\xfb\xa9\x42\xec"
+ "\x5a\x12\xfd\xfe\x76\xa0\x92\x9d"
+ "\xfe\x1e\x16\xdd\x24\x2a\xe4\x27"
+ "\xd5\xa9\xf2\x05\x4f\x83\xa2\xaf"
+ "\xfe\xee\x83\x7a\xad\xde\xdf\x9a"
+ "\x80\xd5\x81\x14\x93\x16\x7e\x46"
+ "\x47\xc2\x14\xef\x49\x6e\xb9\xdb"
+ "\x40\xe8\x06\x6f\x9c\x2a\xfd\x62"
+ "\x06\x46\xfd\x15\x1d\x36\x61\x6f"
+ "\x77\x77\x5e\x64\xce\x78\x1b\x85"
+ "\xbf\x50\x9a\xfd\x67\xa6\x1a\x65"
+ "\xad\x5b\x33\x30\xf1\x71\xaa\xd9"
+ "\x23\x0d\x92\x24\x5f\xae\x57\xb0"
+ "\x24\x37\x0a\x94\x12\xfb\xb5\xb1"
+ "\xd3\xb8\x1d\x12\x29\xb0\x80\x24"
+ "\x2d\x47\x9f\x96\x1f\x95\xf1\xb1"
+ "\xda\x35\xf6\x29\xe0\xe1\x23\x96"
+ "\xc7\xe8\x22\x9b\x7c\xac\xf9\x41"
+ "\x39\x01\xe5\x73\x15\x5e\x99\xec"
+ "\xb4\xc1\xf4\xe7\xa7\x97\x6a\xd5"
+ "\x90\x9a\xa0\x1d\xf3\x5a\x8b\x5f"
+ "\xdf\x01\x52\xa4\x93\x31\x97\xb0"
+ "\x93\x24\xb5\xbc\xb2\x14\x24\x98"
+ "\x4a\x8f\x19\x85\xc3\x2d\x0f\x74"
+ "\x9d\x16\x13\x80\x5e\x59\x62\x62"
+ "\x25\xe0\xd1\x2f\x64\xef\xba\xac"
+ "\xcd\x09\x07\x15\x8a\xcf\x73\xb5"
+ "\x8b\xc9\xd8\x24\xb0\x53\xd5\x6f"
+ "\xe1\x2b\x77\xb1\xc5\xe4\xa7\x0e"
+ "\x18\x45\xab\x36\x03\x59\xa8\xbd"
+ "\x43\xf0\xd8\x2c\x1a\x69\x96\xbb"
+ "\x13\xdf\x6c\x33\x77\xdf\x25\x34"
+ "\x5b\xa5\x5b\x8c\xf9\x51\x05\xd4"
+ "\x8b\x8b\x44\x87\x49\xfc\xa0\x8f"
+ "\x45\x15\x5b\x40\x42\xc4\x09\x92"
+ "\x98\x0c\x4d\xf4\x26\x37\x1b\x13"
+ "\x76\x01\x93\x8d\x4f\xe6\xed\x18"
+ "\xd0\x79\x7b\x3f\x44\x50\xcb\xee"
+ "\xf7\x4a\xc9\x9e\xe0\x96\x74\xa7"
+ "\xe6\x93\xb2\x53\xca\x55\xa8\xdc"
+ "\x1e\x68\x07\x87\xb7\x2e\xc1\x08"
+ "\xb2\xa4\x5b\xaf\xc6\xdb\x5c\x66"
+ "\x41\x1c\x51\xd9\xb0\x07\x00\x0d"
+ "\xf0\x4c\xdc\x93\xde\xa9\x1e\x8e"
+ "\xd3\x22\x62\xd8\x8b\x88\x2c\xea"
+ "\x5e\xf1\x6e\x14\x40\xc7\xbe\xaa"
+ "\x42\x28\xd0\x26\x30\x78\x01\x9b"
+ "\x83\x07\xbc\x94\xc7\x57\xa2\x9f"
+ "\x03\x07\xff\x16\xff\x3c\x6e\x48"
+ "\x0a\xd0\xdd\x4c\xf6\x64\x9a\xf1"
+ "\xcd\x30\x12\x82\x2c\x38\xd3\x26"
+ "\x83\xdb\xab\x3e\xc6\xf8\xe6\xfa"
+ "\x77\x0a\x78\x82\x75\xf8\x63\x51"
+ "\x59\xd0\x8d\x24\x9f\x25\xe6\xa3"
+ "\x4c\xbc\x34\xfc\xe3\x10\xc7\x62"
+ "\xd4\x23\xc8\x3d\xa7\xc6\xa6\x0a"
+ "\x4f\x7e\x29\x9d\x6d\xbe\xb5\xf1"
+ "\xdf\xa4\x53\xfa\xc0\x23\x0f\x37"
+ "\x84\x68\xd0\xb5\xc8\xc6\xae\xf8"
+ "\xb7\x8d\xb3\x16\xfe\x8f\x87\xad"
+ "\xd0\xc1\x08\xee\x12\x1c\x9b\x1d"
+ "\x90\xf8\xd1\x63\xa4\x92\x3c\xf0"
+ "\xc7\x34\xd8\xf1\x14\xed\xa3\xbc"
+ "\x17\x7e\xd4\x62\x42\x54\x57\x2c"
+ "\x3e\x7a\x35\x35\x17\x0f\x0b\x7f"
+ "\x81\xa1\x3f\xd0\xcd\xc8\x3b\x96"
+ "\xe9\xe0\x4a\x04\xe1\xb6\x3c\xa1"
+ "\xd6\xca\xc4\xbd\xb6\xb5\x95\x34"
+ "\x12\x9d\xc5\x96\xf2\xdf\xba\x54"
+ "\x76\xd1\xb2\x6b\x3b\x39\xe0\xb9"
+ "\x18\x62\xfb\xf7\xfc\x12\xf1\x5f"
+ "\x7e\xc7\xe3\x59\x4c\xa6\xc2\x3d"
+ "\x40\x15\xf9\xa3\x95\x64\x4c\x74"
+ "\x8b\x73\x77\x33\x07\xa7\x04\x1d"
+ "\x33\x5a\x7e\x8f\xbd\x86\x01\x4f"
+ "\x3e\xb9\x27\x6f\xe2\x41\xf7\x09"
+ "\x67\xfd\x29\x28\xc5\xe4\xf6\x18"
+ "\x4c\x1b\x49\xb2\x9c\x5b\xf6\x81"
+ "\x4f\xbb\x5c\xcc\x0b\xdf\x84\x23"
+ "\x58\xd6\x28\x34\x93\x3a\x25\x97"
+ "\xdf\xb2\xc3\x9e\x97\x38\x0b\x7d"
+ "\x10\xb3\x54\x35\x23\x8c\x64\xee"
+ "\xf0\xd8\x66\xff\x8b\x22\xd2\x5b"
+ "\x05\x16\x3c\x89\xf7\xb1\x75\xaf"
+ "\xc0\xae\x6a\x4f\x3f\xaf\x9a\xf4"
+ "\xf4\x9a\x24\xd9\x80\x82\xc0\x12"
+ "\xde\x96\xd1\xbe\x15\x0b\x8d\x6a"
+ "\xd7\x12\xe4\x85\x9f\x83\xc9\xc3"
+ "\xff\x0b\xb5\xaf\x3b\xd8\x6d\x67"
+ "\x81\x45\xe6\xac\xec\xc1\x7b\x16"
+ "\x18\x0a\xce\x4b\xc0\x2e\x76\xbc"
+ "\x1b\xfa\xb4\x34\xb8\xfc\x3e\xc8"
+ "\x5d\x90\x71\x6d\x7a\x79\xef\x06",
+ .ksize = 1088,
+ .plaintext = "\xaa\x5d\x54\xcb\xea\x1e\x46\x0f"
+ "\x45\x87\x70\x51\x8a\x66\x7a\x33"
+ "\xb4\x18\xff\xa9\x82\xf9\x45\x4b"
+ "\x93\xae\x2e\x7f\xab\x98\xfe\xbf"
+ "\x01\xee\xe5\xa0\x37\x8f\x57\xa6"
+ "\xb0\x76\x0d\xa4\xd6\x28\x2b\x5d"
+ "\xe1\x03\xd6\x1c\x6f\x34\x0d\xe7"
+ "\x61\x2d\x2e\xe5\xae\x5d\x47\xc7"
+ "\x80\x4b\x18\x8f\xa8\x99\xbc\x28"
+ "\xed\x1d\x9d\x86\x7d\xd7\x41\xd1"
+ "\xe0\x2b\xe1\x8c\x93\x2a\xa7\x80"
+ "\xe1\x07\xa0\xa9\x9f\x8c\x8d\x1a"
+ "\x55\xfc\x6b\x24\x7a\xbd\x3e\x51"
+ "\x68\x4b\x26\x59\xc8\xa7\x16\xd9"
+ "\xb9\x61\x13\xde\x8b\x63\x1c\xf6"
+ "\x60\x01\xfb\x08\xb3\x5b\x0a\xbf"
+ "\x34\x73\xda\x87\x87\x3d\x6f\x97"
+ "\x4a\x0c\xa3\x58\x20\xa2\xc0\x81"
+ "\x5b\x8c\xef\xa9\xc2\x01\x1e\x64"
+ "\x83\x8c\xbc\x03\xb6\xd0\x29\x9f"
+ "\x54\xe2\xce\x8b\xc2\x07\x85\x78"
+ "\x25\x38\x96\x4c\xb4\xbe\x17\x4a"
+ "\x65\xa6\xfa\x52\x9d\x66\x9d\x65"
+ "\x4a\xd1\x01\x01\xf0\xcb\x13\xcc"
+ "\xa5\x82\xf3\xf2\x66\xcd\x3f\x9d"
+ "\xd1\xaa\xe4\x67\xea\xf2\xad\x88"
+ "\x56\x76\xa7\x9b\x59\x3c\xb1\x5d"
+ "\x78\xfd\x69\x79\x74\x78\x43\x26"
+ "\x7b\xde\x3f\xf1\xf5\x4e\x14\xd9"
+ "\x15\xf5\x75\xb5\x2e\x19\xf3\x0c"
+ "\x48\x72\xd6\x71\x6d\x03\x6e\xaa"
+ "\xa7\x08\xf9\xaa\x70\xa3\x0f\x4d"
+ "\x12\x8a\xdd\xe3\x39\x73\x7e\xa7"
+ "\xea\x1f\x6d\x06\x26\x2a\xf2\xc5"
+ "\x52\xb4\xbf\xfd\x52\x0c\x06\x60"
+ "\x90\xd1\xb2\x7b\x56\xae\xac\x58"
+ "\x5a\x6b\x50\x2a\xf5\xe0\x30\x3c"
+ "\x2a\x98\x0f\x1b\x5b\x0a\x84\x6c"
+ "\x31\xae\x92\xe2\xd4\xbb\x7f\x59"
+ "\x26\x10\xb9\x89\x37\x68\x26\xbf"
+ "\x41\xc8\x49\xc4\x70\x35\x7d\xff"
+ "\x2d\x7f\xf6\x8a\x93\x68\x8c\x78"
+ "\x0d\x53\xce\x7d\xff\x7d\xfb\xae"
+ "\x13\x1b\x75\xc4\x78\xd7\x71\xd8"
+ "\xea\xd3\xf4\x9d\x95\x64\x8e\xb4"
+ "\xde\xb8\xe4\xa6\x68\xc8\xae\x73"
+ "\x58\xaf\xa8\xb0\x5a\x20\xde\x87"
+ "\x43\xb9\x0f\xe3\xad\x41\x4b\xd5"
+ "\xb7\xad\x16\x00\xa6\xff\xf6\x74"
+ "\xbf\x8c\x9f\xb3\x58\x1b\xb6\x55"
+ "\xa9\x90\x56\x28\xf0\xb5\x13\x4e"
+ "\x9e\xf7\x25\x86\xe0\x07\x7b\x98"
+ "\xd8\x60\x5d\x38\x95\x3c\xe4\x22"
+ "\x16\x2f\xb2\xa2\xaf\xe8\x90\x17"
+ "\xec\x11\x83\x1a\xf4\xa9\x26\xda"
+ "\x39\x72\xf5\x94\x61\x05\x51\xec"
+ "\xa8\x30\x8b\x2c\x13\xd0\x72\xac"
+ "\xb9\xd2\xa0\x4c\x4b\x78\xe8\x6e"
+ "\x04\x85\xe9\x04\x49\x82\x91\xff"
+ "\x89\xe5\xab\x4c\xaa\x37\x03\x12"
+ "\xca\x8b\x74\x10\xfd\x9e\xd9\x7b"
+ "\xcb\xdb\x82\x6e\xce\x2e\x33\x39"
+ "\xce\xd2\x84\x6e\x34\x71\x51\x6e"
+ "\x0d\xd6\x01\x87\xc7\xfa\x0a\xd3"
+ "\xad\x36\xf3\x4c\x9f\x96\x5e\x62"
+ "\x62\x54\xc3\x03\x78\xd6\xab\xdd"
+ "\x89\x73\x55\x25\x30\xf8\xa7\xe6"
+ "\x4f\x11\x0c\x7c\x0a\xa1\x2b\x7b"
+ "\x3d\x0d\xde\x81\xd4\x9d\x0b\xae"
+ "\xdf\x00\xf9\x4c\xb6\x90\x8e\x16"
+ "\xcb\x11\xc8\xd1\x2e\x73\x13\x75"
+ "\x75\x3e\xaa\xf5\xee\x02\xb3\x18"
+ "\xa6\x2d\xf5\x3b\x51\xd1\x1f\x47"
+ "\x6b\x2c\xdb\xc4\x10\xe0\xc8\xba"
+ "\x9d\xac\xb1\x9d\x75\xd5\x41\x0e"
+ "\x7e\xbe\x18\x5b\xa4\x1f\xf8\x22"
+ "\x4c\xc1\x68\xda\x6d\x51\x34\x6c"
+ "\x19\x59\xec\xb5\xb1\xec\xa7\x03"
+ "\xca\x54\x99\x63\x05\x6c\xb1\xac"
+ "\x9c\x31\xd6\xdb\xba\x7b\x14\x12"
+ "\x7a\xc3\x2f\xbf\x8d\xdc\x37\x46"
+ "\xdb\xd2\xbc\xd4\x2f\xab\x30\xd5"
+ "\xed\x34\x99\x8e\x83\x3e\xbe\x4c"
+ "\x86\x79\x58\xe0\x33\x8d\x9a\xb8"
+ "\xa9\xa6\x90\x46\xa2\x02\xb8\xdd"
+ "\xf5\xf9\x1a\x5c\x8c\x01\xaa\x6e"
+ "\xb4\x22\x12\xf5\x0c\x1b\x9b\x7a"
+ "\xc3\x80\xf3\x06\x00\x5f\x30\xd5"
+ "\x06\xdb\x7d\x82\xc2\xd4\x0b\x4c"
+ "\x5f\xe9\xc5\xf5\xdf\x97\x12\xbf"
+ "\x56\xaf\x9b\x69\xcd\xee\x30\xb4"
+ "\xa8\x71\xff\x3e\x7d\x73\x7a\xb4"
+ "\x0d\xa5\x46\x7a\xf3\xf4\x15\x87"
+ "\x5d\x93\x2b\x8c\x37\x64\xb5\xdd"
+ "\x48\xd1\xe5\x8c\xae\xd4\xf1\x76"
+ "\xda\xf4\xba\x9e\x25\x0e\xad\xa3"
+ "\x0d\x08\x7c\xa8\x82\x16\x8d\x90"
+ "\x56\x40\x16\x84\xe7\x22\x53\x3a"
+ "\x58\xbc\xb9\x8f\x33\xc8\xc2\x84"
+ "\x22\xe6\x0d\xe7\xb3\xdc\x5d\xdf"
+ "\xd7\x2a\x36\xe4\x16\x06\x07\xd2"
+ "\x97\x60\xb2\xf5\x5e\x14\xc9\xfd"
+ "\x8b\x05\xd1\xce\xee\x9a\x65\x99"
+ "\xb7\xae\x19\xb7\xc8\xbc\xd5\xa2"
+ "\x7b\x95\xe1\xcc\xba\x0d\xdc\x8a"
+ "\x1d\x59\x52\x50\xaa\x16\x02\x82"
+ "\xdf\x61\x33\x2e\x44\xce\x49\xc7"
+ "\xe5\xc6\x2e\x76\xcf\x80\x52\xf0"
+ "\x3d\x17\x34\x47\x3f\xd3\x80\x48"
+ "\xa2\xba\xd5\xc7\x7b\x02\x28\xdb"
+ "\xac\x44\xc7\x6e\x05\x5c\xc2\x79"
+ "\xb3\x7d\x6a\x47\x77\x66\xf1\x38"
+ "\xf0\xf5\x4f\x27\x1a\x31\xca\x6c"
+ "\x72\x95\x92\x8e\x3f\xb0\xec\x1d"
+ "\xc7\x2a\xff\x73\xee\xdf\x55\x80"
+ "\x93\xd2\xbd\x34\xd3\x9f\x00\x51"
+ "\xfb\x2e\x41\xba\x6c\x5a\x7c\x17"
+ "\x7f\xe6\x70\xac\x8d\x39\x3f\x77"
+ "\xe2\x23\xac\x8f\x72\x4e\xe4\x53"
+ "\xcc\xf1\x1b\xf1\x35\xfe\x52\xa4"
+ "\xd6\xb8\x40\x6b\xc1\xfd\xa0\xa1"
+ "\xf5\x46\x65\xc2\x50\xbb\x43\xe2"
+ "\xd1\x43\x28\x34\x74\xf5\x87\xa0"
+ "\xf2\x5e\x27\x3b\x59\x2b\x3e\x49"
+ "\xdf\x46\xee\xaf\x71\xd7\x32\x36"
+ "\xc7\x14\x0b\x58\x6e\x3e\x2d\x41"
+ "\xfa\x75\x66\x3a\x54\xe0\xb2\xb9"
+ "\xaf\xdd\x04\x80\x15\x19\x3f\x6f"
+ "\xce\x12\xb4\xd8\xe8\x89\x3c\x05"
+ "\x30\xeb\xf3\x3d\xcd\x27\xec\xdc"
+ "\x56\x70\x12\xcf\x78\x2b\x77\xbf"
+ "\x22\xf0\x1b\x17\x9c\xcc\xd6\x1b"
+ "\x2d\x3d\xa0\x3b\xd8\xc9\x70\xa4"
+ "\x7a\x3e\x07\xb9\x06\xc3\xfa\xb0"
+ "\x33\xee\xc1\xd8\xf6\xe0\xf0\xb2"
+ "\x61\x12\x69\xb0\x5f\x28\x99\xda"
+ "\xc3\x61\x48\xfa\x07\x16\x03\xc4"
+ "\xa8\xe1\x3c\xe8\x0e\x64\x15\x30"
+ "\xc1\x9d\x84\x2f\x73\x98\x0e\x3a"
+ "\xf2\x86\x21\xa4\x9e\x1d\xb5\x86"
+ "\x16\xdb\x2b\x9a\x06\x64\x8e\x79"
+ "\x8d\x76\x3e\xc3\xc2\x64\x44\xe3"
+ "\xda\xbc\x1a\x52\xd7\x61\x03\x65"
+ "\x54\x32\x77\x01\xed\x9d\x8a\x43"
+ "\x25\x24\xe3\xc1\xbe\xb8\x2f\xcb"
+ "\x89\x14\x64\xab\xf6\xa0\x6e\x02"
+ "\x57\xe4\x7d\xa9\x4e\x9a\x03\x36"
+ "\xad\xf1\xb1\xfc\x0b\xe6\x79\x51"
+ "\x9f\x81\x77\xc4\x14\x78\x9d\xbf"
+ "\xb6\xd6\xa3\x8c\xba\x0b\x26\xe7"
+ "\xc8\xb9\x5c\xcc\xe1\x5f\xd5\xc6"
+ "\xc4\xca\xc2\xa3\x45\xba\x94\x13"
+ "\xb2\x8f\xc3\x54\x01\x09\xe7\x8b"
+ "\xda\x2a\x0a\x11\x02\x43\xcb\x57"
+ "\xc9\xcc\xb5\x5c\xab\xc4\xec\x54"
+ "\x00\x06\x34\xe1\x6e\x03\x89\x7c"
+ "\xc6\xfb\x6a\xc7\x60\x43\xd6\xc5"
+ "\xb5\x68\x72\x89\x8f\x42\xc3\x74"
+ "\xbd\x25\xaa\x9f\x67\xb5\xdf\x26"
+ "\x20\xe8\xb7\x01\x3c\xe4\x77\xce"
+ "\xc4\x65\xa7\x23\x79\xea\x33\xc7"
+ "\x82\x14\x5c\x82\xf2\x4e\x3d\xf6"
+ "\xc6\x4a\x0e\x29\xbb\xec\x44\xcd"
+ "\x2f\xd1\x4f\x21\x71\xa9\xce\x0f"
+ "\x5c\xf2\x72\x5c\x08\x2e\x21\xd2"
+ "\xc3\x29\x13\xd8\xac\xc3\xda\x13"
+ "\x1a\x9d\xa7\x71\x1d\x27\x1d\x27"
+ "\x1d\xea\xab\x44\x79\xad\xe5\xeb"
+ "\xef\x1f\x22\x0a\x44\x4f\xcb\x87"
+ "\xa7\x58\x71\x0e\x66\xf8\x60\xbf"
+ "\x60\x74\x4a\xb4\xec\x2e\xfe\xd3"
+ "\xf5\xb8\xfe\x46\x08\x50\x99\x6c"
+ "\x66\xa5\xa8\x34\x44\xb5\xe5\xf0"
+ "\xdd\x2c\x67\x4e\x35\x96\x8e\x67"
+ "\x48\x3f\x5f\x37\x44\x60\x51\x2e"
+ "\x14\x91\x5e\x57\xc3\x0e\x79\x77"
+ "\x2f\x03\xf4\xe2\x1c\x72\xbf\x85"
+ "\x5d\xd3\x17\xdf\x6c\xc5\x70\x24"
+ "\x42\xdf\x51\x4e\x2a\xb2\xd2\x5b"
+ "\x9e\x69\x83\x41\x11\xfe\x73\x22"
+ "\xde\x8a\x9e\xd8\x8a\xfb\x20\x38"
+ "\xd8\x47\x6f\xd5\xed\x8f\x41\xfd"
+ "\x13\x7a\x18\x03\x7d\x0f\xcd\x7d"
+ "\xa6\x7d\x31\x9e\xf1\x8f\x30\xa3"
+ "\x8b\x4c\x24\xb7\xf5\x48\xd7\xd9"
+ "\x12\xe7\x84\x97\x5c\x31\x6d\xfb"
+ "\xdf\xf3\xd3\xd1\xd5\x0c\x30\x06"
+ "\x01\x6a\xbc\x6c\x78\x7b\xa6\x50"
+ "\xfa\x0f\x3c\x42\x2d\xa5\xa3\x3b"
+ "\xcf\x62\x50\xff\x71\x6d\xe7\xda"
+ "\x27\xab\xc6\x67\x16\x65\x68\x64"
+ "\xc7\xd5\x5f\x81\xa9\xf6\x65\xb3"
+ "\x5e\x43\x91\x16\xcd\x3d\x55\x37"
+ "\x55\xb3\xf0\x28\xc5\x54\x19\xc0"
+ "\xe0\xd6\x2a\x61\xd4\xc8\x72\x51"
+ "\xe9\xa1\x7b\x48\x21\xad\x44\x09"
+ "\xe4\x01\x61\x3c\x8a\x5b\xf9\xa1"
+ "\x6e\x1b\xdf\xc0\x04\xa8\x8b\xf2"
+ "\x21\xbe\x34\x7b\xfc\xa1\xcd\xc9"
+ "\xa9\x96\xf4\xa4\x4c\xf7\x4e\x8f"
+ "\x84\xcc\xd3\xa8\x92\x77\x8f\x36"
+ "\xe2\x2e\x8c\x33\xe8\x84\xa6\x0c"
+ "\x6c\x8a\xda\x14\x32\xc2\x96\xff"
+ "\xc6\x4a\xc2\x9b\x30\x7f\xd1\x29"
+ "\xc0\xd5\x78\x41\x00\x80\x80\x03"
+ "\x2a\xb1\xde\x26\x03\x48\x49\xee"
+ "\x57\x14\x76\x51\x3c\x36\x5d\x0a"
+ "\x5c\x9f\xe8\xd8\x53\xdb\x4f\xd4"
+ "\x38\xbf\x66\xc9\x75\x12\x18\x75"
+ "\x34\x2d\x93\x22\x96\x51\x24\x6e"
+ "\x4e\xd9\x30\xea\x67\xff\x92\x1c"
+ "\x16\x26\xe9\xb5\x33\xab\x8c\x22"
+ "\x47\xdb\xa0\x2c\x08\xf0\x12\x69"
+ "\x7e\x93\x52\xda\xa5\xe5\xca\xc1"
+ "\x0f\x55\x2a\xbd\x09\x30\x88\x1b"
+ "\x9c\xc6\x9f\xe6\xdb\xa6\x92\xeb"
+ "\xf4\xbd\x5c\xc4\xdb\xc6\x71\x09"
+ "\xab\x5e\x48\x0c\xed\x6f\xda\x8e"
+ "\x8d\x0c\x98\x71\x7d\x10\xd0\x9c"
+ "\x20\x9b\x79\x53\x26\x5d\xb9\x85"
+ "\x8a\x31\xb8\xc5\x1c\x97\xde\x88"
+ "\x61\x55\x7f\x7c\x21\x06\xea\xc4"
+ "\x5f\xaf\xf2\xf0\xd5\x5e\x7d\xb4"
+ "\x6e\xcf\xe9\xae\x1b\x0e\x11\x80"
+ "\xc1\x9a\x74\x7e\x52\x6f\xa0\xb7"
+ "\x24\xcd\x8d\x0a\x11\x40\x63\x72"
+ "\xfa\xe2\xc5\xb3\x94\xef\x29\xa2"
+ "\x1a\x23\x43\x04\x37\x55\x0d\xe9"
+ "\x83\xb2\x29\x51\x49\x64\xa0\xbd"
+ "\xde\x73\xfd\xa5\x7c\x95\x70\x62"
+ "\x58\xdc\xe2\xd0\xbf\x98\xf5\x8a"
+ "\x6a\xfd\xce\xa8\x0e\x42\x2a\xeb"
+ "\xd2\xff\x83\x27\x53\x5c\xa0\x6e"
+ "\x93\xef\xe2\xb9\x5d\x35\xd6\x98"
+ "\xf6\x71\x19\x7a\x54\xa1\xa7\xe8"
+ "\x09\xfe\xf6\x9e\xc7\xbd\x3e\x29"
+ "\xbd\x6b\x17\xf4\xe7\x3e\x10\x5c"
+ "\xc1\xd2\x59\x4f\x4b\x12\x1a\x5b"
+ "\x50\x80\x59\xb9\xec\x13\x66\xa8"
+ "\xd2\x31\x7b\x6a\x61\x22\xdd\x7d"
+ "\x61\xee\x87\x16\x46\x9f\xf9\xc7"
+ "\x41\xee\x74\xf8\xd0\x96\x2c\x76"
+ "\x2a\xac\x7d\x6e\x9f\x0e\x7f\x95"
+ "\xfe\x50\x16\xb2\x23\xca\x62\xd5"
+ "\x68\xcf\x07\x3f\x3f\x97\x85\x2a"
+ "\x0c\x25\x45\xba\xdb\x32\xcb\x83"
+ "\x8c\x4f\xe0\x6d\x9a\x99\xf9\xc9"
+ "\xda\xd4\x19\x31\xc1\x7c\x6d\xd9"
+ "\x9c\x56\xd3\xec\xc1\x81\x4c\xed"
+ "\x28\x9d\x87\xeb\x19\xd7\x1a\x4f"
+ "\x04\x6a\xcb\x1f\xcf\x1f\xa2\x16"
+ "\xfc\x2a\x0d\xa1\x14\x2d\xfa\xc5"
+ "\x5a\xd2\xc5\xf9\x19\x7c\x20\x1f"
+ "\x2d\x10\xc0\x66\x7c\xd9\x2d\xe5"
+ "\x88\x70\x59\xa7\x85\xd5\x2e\x7c"
+ "\x5c\xe3\xb7\x12\xd6\x97\x3f\x29",
+ .psize = 2048,
+ .digest = "\x37\x90\x92\xc2\xeb\x01\x87\xd9"
+ "\x95\xc7\x91\xc3\x17\x8b\x38\x52",
+ }
+};
+
+
/*
* DES test vectors.
*/
diff --git a/include/crypto/nhpoly1305.h b/include/crypto/nhpoly1305.h
new file mode 100644
index 000000000000..53c04423c582
--- /dev/null
+++ b/include/crypto/nhpoly1305.h
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common values and helper functions for the NHPoly1305 hash function.
+ */
+
+#ifndef _NHPOLY1305_H
+#define _NHPOLY1305_H
+
+#include <crypto/hash.h>
+#include <crypto/poly1305.h>
+
+/* NH parameterization: */
+
+/* Endianness: little */
+/* Word size: 32 bits (works well on NEON, SSE2, AVX2) */
+
+/* Stride: 2 words (optimal on ARM32 NEON; works okay on other CPUs too) */
+#define NH_PAIR_STRIDE 2
+#define NH_MESSAGE_UNIT (NH_PAIR_STRIDE * 2 * sizeof(u32))
+
+/* Num passes (Toeplitz iteration count): 4, to give ε = 2^{-128} */
+#define NH_NUM_PASSES 4
+#define NH_HASH_BYTES (NH_NUM_PASSES * sizeof(u64))
+
+/* Max message size: 1024 bytes (32x compression factor) */
+#define NH_NUM_STRIDES 64
+#define NH_MESSAGE_WORDS (NH_PAIR_STRIDE * 2 * NH_NUM_STRIDES)
+#define NH_MESSAGE_BYTES (NH_MESSAGE_WORDS * sizeof(u32))
+#define NH_KEY_WORDS (NH_MESSAGE_WORDS + \
+ NH_PAIR_STRIDE * 2 * (NH_NUM_PASSES - 1))
+#define NH_KEY_BYTES (NH_KEY_WORDS * sizeof(u32))
+
+#define NHPOLY1305_KEY_SIZE (POLY1305_BLOCK_SIZE + NH_KEY_BYTES)
+
+struct nhpoly1305_key {
+ struct poly1305_key poly_key;
+ u32 nh_key[NH_KEY_WORDS];
+};
+
+struct nhpoly1305_state {
+
+ /* Running total of polynomial evaluation */
+ struct poly1305_state poly_state;
+
+ /* Partial block buffer */
+ u8 buffer[NH_MESSAGE_UNIT];
+ unsigned int buflen;
+
+ /*
+ * Number of bytes remaining until the current NH message reaches
+ * NH_MESSAGE_BYTES. When nonzero, 'nh_hash' holds the partial NH hash.
+ */
+ unsigned int nh_remaining;
+
+ __le64 nh_hash[NH_NUM_PASSES];
+};
+
+typedef void (*nh_t)(const u32 *key, const u8 *message, size_t message_len,
+ __le64 hash[NH_NUM_PASSES]);
+
+int crypto_nhpoly1305_setkey(struct crypto_shash *tfm,
+ const u8 *key, unsigned int keylen);
+
+int crypto_nhpoly1305_init(struct shash_desc *desc);
+int crypto_nhpoly1305_update(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen);
+int crypto_nhpoly1305_update_helper(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen,
+ nh_t nh_fn);
+int crypto_nhpoly1305_final(struct shash_desc *desc, u8 *dst);
+int crypto_nhpoly1305_final_helper(struct shash_desc *desc, u8 *dst,
+ nh_t nh_fn);
+
+#endif /* _NHPOLY1305_H */
--
2.19.1.930.g4563a0d9d0-goog
Hi Eric:
On Mon, Nov 12, 2018 at 10:58:17AM -0800, Eric Biggers wrote:
>
> I prefer separate types so that the type system enforces that a key is never
> accidentally used as an accumulator, and vice versa. Then the poly1305_core_*
> functions will be harder to misuse, and the Poly1305 MAC implementations harder
> to get wrong.
>
> The key also has certain bits clear whereas the accumulator does not. In the
> future, the Poly1305 C implementation might use base 2^32 and take advantage of
> this. In that case, the two inputs to each multiplication won't be
> interchangeable, so using the same type for both would be extra confusing.
>
> Having a poly1305_val nested inside poly1305_key and poly1305_state would work,
> but seemed excessive.
So it looks like there are no more unresolved issues with this
patch series. Please let me know when you want it to go in.
Thanks,
--
Email: Herbert Xu <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
On Tue, Nov 20, 2018 at 05:24:41PM +0100, Jason A. Donenfeld wrote:
> On Tue, Nov 20, 2018 at 3:19 PM Herbert Xu <[email protected]> wrote:
> > Yes. In fact it's used for FIPS certification testing.
> > Sure, nobody sane should be doing it. But when it comes to
> > government certification... :)
>
> The kernel does not aim toward any FIPS certification, and we're not
> going to start bloating our designs to fulfill this. It's never been a
> goal. Maybe ask Ted to add a FIPS mode to random.c and see what
> happens... When you start arguing "because FIPS!" as your
> justification, you really hit a head scratcher.
FIPS is not the issue. The issue is that we need to keep the
existing user-space ABI. We can't break that.
Cheers,
--
Email: Herbert Xu <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
On Mon, Nov 19, 2018 at 02:54:15PM -0800, Eric Biggers wrote:
>
> > I think the remaining issue right now is how to order my series and
> > Eric's series. If Eric's goes in first, it means that I can either a)
> > spend some time developing Zinc further _now_ to support chacha12 and
> > keep the top two conversion patches, or b) just drop the top two
> > conversion patches and work that out carefully with Eric after. I
> > think (b) would be better, but I'm happy to do (a) if you disagree.
> > And as I mentioned in the last email, I'd prefer Eric's work to go in
> > after Zinc, but I don't think the reasoning for that is particularly
> > strong, so it seems fine to merge Eric's work first.
> >
> > I'll post v9 pretty soon and you can see how things are shaping up.
> > Hopefully before then Eric/Ard/you can provide some feedback on
> > whether you'd prefer (a) or (b) above.
> >
>
> I'd still prefer to see the conversion patches included. Skipping them would be
> kicking the can down the road and avoiding issues that will need to be addressed
> anyway. Like you, I don't want a "half-baked concoction that will be maybe
> possibly be replaced 'later'" :-)
Are you guys talking about the conversion patches to eliminate the
two copies of chacha code that would otherwise exist in crypto as
well as in zinc?
If so I think that's not negotiable. Having two copies of the same
code is just not acceptable.
Cheers,
--
Email: Herbert Xu <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
From: Eric Biggers <[email protected]>
chacha20-generic doesn't use SIMD instructions or otherwise disable
preemption, so passing atomic=true to skcipher_walk_virt() is
unnecessary.
Suggested-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Eric Biggers <[email protected]>
---
crypto/chacha20_generic.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/crypto/chacha20_generic.c b/crypto/chacha20_generic.c
index 3ae96587caf9..3529521d72a4 100644
--- a/crypto/chacha20_generic.c
+++ b/crypto/chacha20_generic.c
@@ -81,7 +81,7 @@ int crypto_chacha20_crypt(struct skcipher_request *req)
u32 state[16];
int err;
- err = skcipher_walk_virt(&walk, req, true);
+ err = skcipher_walk_virt(&walk, req, false);
crypto_chacha20_init(state, ctx, walk.iv);
--
2.19.1.930.g4563a0d9d0-goog
Hi Ard:
On Tue, Nov 20, 2018 at 11:32:05AM +0100, Ard Biesheuvel wrote:
>
> > 1. The crypto API algorithms remain individually accessible, this
> > is crucial as these algorithm names are exported to user-space so
> > changing the names to foo-zinc is not going to work.
>
> Are you saying user space may use names like "ctr-aes-neon" directly
> rather than "ctr(aes)" for any implementation of the mode?
Yes. In fact it's used for FIPS certification testing.
> If so, that is highly unfortunate, since it means we'd be breaking
> user space by wrapping a crypto library function with its own arch
> specific specializations into a generic crypto API wrapper.
You can never break things by introducing new algorithms. The
problem is only when you remove existing ones.
> Note that I think that using AF_ALG to access software crypto routines
> (as opposed to accelerators) is rather pointless to begin with, but if
> it permits that today than we're stuck with it.
Sure, nobody sane should be doing it. But when it comes to
government certification... :)
> > 2. The arch-specific algorithm code lives in their own module rather
> > than in a monolithic module.
>
> This is one of the remaining issues I have with Zinc. However, modulo
> the above concerns, I think it does make sense to have a separate
> function API for synchronous software routines below the current
> crypto API. What I don't want is a separate Zinc kingdom with a
> different name, different maintainers and going through a different
> tree, and with its own approach to test vectors, arch specific code,
> etc etc
Even without the issue of replacing chacha20-generic with
chacha20-zinc which breaks point 1 above, we simply don't want
or need to go through zinc's run-time implementation choice for
the crypto API algorithms. They've already paid for the indirect
function call so why make them go through yet another run-time
branch?
If the optics of having the code in crypto is the issue, we could
move the actual algorithm code into a third location, perhaps
arch/x86/crypto/lib or arch/x86/lib/crypto. Then both zinc and
the crypto API can sit on top of that.
Cheers,
--
Email: Herbert Xu <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
Hi Eric,
On Tue, Nov 20, 2018 at 12:23 AM Eric Biggers <[email protected]> wrote:
> It's much better to have the documentation in a permanent location.
Agreed.
> I actually did add ChaCha12 support to most of the Zinc assembly in
> "[WIP] crypto: assembly support for ChaCha12"
> (https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git/commit/?h=adiantum-zinc&id=0a7787a515a977e11b680f1752b430ca1744e399).
> But I skipped AVX-512 and MIPS since I didn't have a way to test those yet,
> and I haven't ported the changes to your new perl scripts yet.
Oh, great. If you're playing with this in the context of the WireGuard
repo, you can run `ARCH=mips make test-qemu -j$(nproc)` (which is
what's running on https://www.wireguard.com/build-status/ ). For
AVX-512 testing, I've got a box I'm happy to give you access to, if
you want to send an SSH key and your employer allows for that kind of
thing etc. I can have a stab at all of this too if you like.
Jason
From: Eric Biggers <[email protected]>
Expose a low-level Poly1305 API which implements the
ε-almost-∆-universal (εA∆U) hash function underlying the Poly1305 MAC
and supports block-aligned inputs only.
This is needed for Adiantum hashing, which builds an εA∆U hash function
from NH and a polynomial evaluation in GF(2^{130}-5); this polynomial
evaluation is identical to the one the Poly1305 MAC does. However, the
crypto_shash Poly1305 API isn't very appropriate for this because its
calling convention assumes it is used as a MAC, with a 32-byte "one-time
key" provided for every digest.
But by design, in Adiantum hashing the performance of the polynomial
evaluation isn't nearly as critical as NH. So it suffices to just have
some C helper functions. Thus, this patch adds such functions.
Signed-off-by: Eric Biggers <[email protected]>
---
crypto/poly1305_generic.c | 174 ++++++++++++++++++++++----------------
include/crypto/poly1305.h | 16 ++++
2 files changed, 115 insertions(+), 75 deletions(-)
diff --git a/crypto/poly1305_generic.c b/crypto/poly1305_generic.c
index a23173f351b7..2a06874204e8 100644
--- a/crypto/poly1305_generic.c
+++ b/crypto/poly1305_generic.c
@@ -38,7 +38,7 @@ int crypto_poly1305_init(struct shash_desc *desc)
{
struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
- memset(dctx->h.h, 0, sizeof(dctx->h.h));
+ poly1305_core_init(&dctx->h);
dctx->buflen = 0;
dctx->rset = false;
dctx->sset = false;
@@ -47,23 +47,16 @@ int crypto_poly1305_init(struct shash_desc *desc)
}
EXPORT_SYMBOL_GPL(crypto_poly1305_init);
-static void poly1305_setrkey(struct poly1305_desc_ctx *dctx, const u8 *key)
+void poly1305_core_setkey(struct poly1305_key *key, const u8 *raw_key)
{
/* r &= 0xffffffc0ffffffc0ffffffc0fffffff */
- dctx->r.r[0] = (get_unaligned_le32(key + 0) >> 0) & 0x3ffffff;
- dctx->r.r[1] = (get_unaligned_le32(key + 3) >> 2) & 0x3ffff03;
- dctx->r.r[2] = (get_unaligned_le32(key + 6) >> 4) & 0x3ffc0ff;
- dctx->r.r[3] = (get_unaligned_le32(key + 9) >> 6) & 0x3f03fff;
- dctx->r.r[4] = (get_unaligned_le32(key + 12) >> 8) & 0x00fffff;
-}
-
-static void poly1305_setskey(struct poly1305_desc_ctx *dctx, const u8 *key)
-{
- dctx->s[0] = get_unaligned_le32(key + 0);
- dctx->s[1] = get_unaligned_le32(key + 4);
- dctx->s[2] = get_unaligned_le32(key + 8);
- dctx->s[3] = get_unaligned_le32(key + 12);
+ key->r[0] = (get_unaligned_le32(raw_key + 0) >> 0) & 0x3ffffff;
+ key->r[1] = (get_unaligned_le32(raw_key + 3) >> 2) & 0x3ffff03;
+ key->r[2] = (get_unaligned_le32(raw_key + 6) >> 4) & 0x3ffc0ff;
+ key->r[3] = (get_unaligned_le32(raw_key + 9) >> 6) & 0x3f03fff;
+ key->r[4] = (get_unaligned_le32(raw_key + 12) >> 8) & 0x00fffff;
}
+EXPORT_SYMBOL_GPL(poly1305_core_setkey);
/*
* Poly1305 requires a unique key for each tag, which implies that we can't set
@@ -75,13 +68,16 @@ unsigned int crypto_poly1305_setdesckey(struct poly1305_desc_ctx *dctx,
{
if (!dctx->sset) {
if (!dctx->rset && srclen >= POLY1305_BLOCK_SIZE) {
- poly1305_setrkey(dctx, src);
+ poly1305_core_setkey(&dctx->r, src);
src += POLY1305_BLOCK_SIZE;
srclen -= POLY1305_BLOCK_SIZE;
dctx->rset = true;
}
if (srclen >= POLY1305_BLOCK_SIZE) {
- poly1305_setskey(dctx, src);
+ dctx->s[0] = get_unaligned_le32(src + 0);
+ dctx->s[1] = get_unaligned_le32(src + 4);
+ dctx->s[2] = get_unaligned_le32(src + 8);
+ dctx->s[3] = get_unaligned_le32(src + 12);
src += POLY1305_BLOCK_SIZE;
srclen -= POLY1305_BLOCK_SIZE;
dctx->sset = true;
@@ -91,41 +87,37 @@ unsigned int crypto_poly1305_setdesckey(struct poly1305_desc_ctx *dctx,
}
EXPORT_SYMBOL_GPL(crypto_poly1305_setdesckey);
-static unsigned int poly1305_blocks(struct poly1305_desc_ctx *dctx,
- const u8 *src, unsigned int srclen,
- u32 hibit)
+static void poly1305_blocks_internal(struct poly1305_state *state,
+ const struct poly1305_key *key,
+ const void *src, unsigned int nblocks,
+ u32 hibit)
{
u32 r0, r1, r2, r3, r4;
u32 s1, s2, s3, s4;
u32 h0, h1, h2, h3, h4;
u64 d0, d1, d2, d3, d4;
- unsigned int datalen;
- if (unlikely(!dctx->sset)) {
- datalen = crypto_poly1305_setdesckey(dctx, src, srclen);
- src += srclen - datalen;
- srclen = datalen;
- }
+ if (!nblocks)
+ return;
- r0 = dctx->r.r[0];
- r1 = dctx->r.r[1];
- r2 = dctx->r.r[2];
- r3 = dctx->r.r[3];
- r4 = dctx->r.r[4];
+ r0 = key->r[0];
+ r1 = key->r[1];
+ r2 = key->r[2];
+ r3 = key->r[3];
+ r4 = key->r[4];
s1 = r1 * 5;
s2 = r2 * 5;
s3 = r3 * 5;
s4 = r4 * 5;
- h0 = dctx->h.h[0];
- h1 = dctx->h.h[1];
- h2 = dctx->h.h[2];
- h3 = dctx->h.h[3];
- h4 = dctx->h.h[4];
-
- while (likely(srclen >= POLY1305_BLOCK_SIZE)) {
+ h0 = state->h[0];
+ h1 = state->h[1];
+ h2 = state->h[2];
+ h3 = state->h[3];
+ h4 = state->h[4];
+ do {
/* h += m[i] */
h0 += (get_unaligned_le32(src + 0) >> 0) & 0x3ffffff;
h1 += (get_unaligned_le32(src + 3) >> 2) & 0x3ffffff;
@@ -154,16 +146,36 @@ static unsigned int poly1305_blocks(struct poly1305_desc_ctx *dctx,
h1 += h0 >> 26; h0 = h0 & 0x3ffffff;
src += POLY1305_BLOCK_SIZE;
- srclen -= POLY1305_BLOCK_SIZE;
- }
+ } while (--nblocks);
- dctx->h.h[0] = h0;
- dctx->h.h[1] = h1;
- dctx->h.h[2] = h2;
- dctx->h.h[3] = h3;
- dctx->h.h[4] = h4;
+ state->h[0] = h0;
+ state->h[1] = h1;
+ state->h[2] = h2;
+ state->h[3] = h3;
+ state->h[4] = h4;
+}
- return srclen;
+void poly1305_core_blocks(struct poly1305_state *state,
+ const struct poly1305_key *key,
+ const void *src, unsigned int nblocks)
+{
+ poly1305_blocks_internal(state, key, src, nblocks, 1 << 24);
+}
+EXPORT_SYMBOL_GPL(poly1305_core_blocks);
+
+static void poly1305_blocks(struct poly1305_desc_ctx *dctx,
+ const u8 *src, unsigned int srclen, u32 hibit)
+{
+ unsigned int datalen;
+
+ if (unlikely(!dctx->sset)) {
+ datalen = crypto_poly1305_setdesckey(dctx, src, srclen);
+ src += srclen - datalen;
+ srclen = datalen;
+ }
+
+ poly1305_blocks_internal(&dctx->h, &dctx->r,
+ src, srclen / POLY1305_BLOCK_SIZE, hibit);
}
int crypto_poly1305_update(struct shash_desc *desc,
@@ -187,9 +199,9 @@ int crypto_poly1305_update(struct shash_desc *desc,
}
if (likely(srclen >= POLY1305_BLOCK_SIZE)) {
- bytes = poly1305_blocks(dctx, src, srclen, 1 << 24);
- src += srclen - bytes;
- srclen = bytes;
+ poly1305_blocks(dctx, src, srclen, 1 << 24);
+ src += srclen - (srclen % POLY1305_BLOCK_SIZE);
+ srclen %= POLY1305_BLOCK_SIZE;
}
if (unlikely(srclen)) {
@@ -201,30 +213,18 @@ int crypto_poly1305_update(struct shash_desc *desc,
}
EXPORT_SYMBOL_GPL(crypto_poly1305_update);
-int crypto_poly1305_final(struct shash_desc *desc, u8 *dst)
+void poly1305_core_emit(const struct poly1305_state *state, void *dst)
{
- struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
u32 h0, h1, h2, h3, h4;
u32 g0, g1, g2, g3, g4;
u32 mask;
- u64 f = 0;
-
- if (unlikely(!dctx->sset))
- return -ENOKEY;
-
- if (unlikely(dctx->buflen)) {
- dctx->buf[dctx->buflen++] = 1;
- memset(dctx->buf + dctx->buflen, 0,
- POLY1305_BLOCK_SIZE - dctx->buflen);
- poly1305_blocks(dctx, dctx->buf, POLY1305_BLOCK_SIZE, 0);
- }
/* fully carry h */
- h0 = dctx->h.h[0];
- h1 = dctx->h.h[1];
- h2 = dctx->h.h[2];
- h3 = dctx->h.h[3];
- h4 = dctx->h.h[4];
+ h0 = state->h[0];
+ h1 = state->h[1];
+ h2 = state->h[2];
+ h3 = state->h[3];
+ h4 = state->h[4];
h2 += (h1 >> 26); h1 = h1 & 0x3ffffff;
h3 += (h2 >> 26); h2 = h2 & 0x3ffffff;
@@ -254,16 +254,40 @@ int crypto_poly1305_final(struct shash_desc *desc, u8 *dst)
h4 = (h4 & mask) | g4;
/* h = h % (2^128) */
- h0 = (h0 >> 0) | (h1 << 26);
- h1 = (h1 >> 6) | (h2 << 20);
- h2 = (h2 >> 12) | (h3 << 14);
- h3 = (h3 >> 18) | (h4 << 8);
+ put_unaligned_le32((h0 >> 0) | (h1 << 26), dst + 0);
+ put_unaligned_le32((h1 >> 6) | (h2 << 20), dst + 4);
+ put_unaligned_le32((h2 >> 12) | (h3 << 14), dst + 8);
+ put_unaligned_le32((h3 >> 18) | (h4 << 8), dst + 12);
+}
+EXPORT_SYMBOL_GPL(poly1305_core_emit);
+
+int crypto_poly1305_final(struct shash_desc *desc, u8 *dst)
+{
+ struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
+ __le32 digest[4];
+ u64 f = 0;
+
+ if (unlikely(!dctx->sset))
+ return -ENOKEY;
+
+ if (unlikely(dctx->buflen)) {
+ dctx->buf[dctx->buflen++] = 1;
+ memset(dctx->buf + dctx->buflen, 0,
+ POLY1305_BLOCK_SIZE - dctx->buflen);
+ poly1305_blocks(dctx, dctx->buf, POLY1305_BLOCK_SIZE, 0);
+ }
+
+ poly1305_core_emit(&dctx->h, digest);
/* mac = (h + s) % (2^128) */
- f = (f >> 32) + h0 + dctx->s[0]; put_unaligned_le32(f, dst + 0);
- f = (f >> 32) + h1 + dctx->s[1]; put_unaligned_le32(f, dst + 4);
- f = (f >> 32) + h2 + dctx->s[2]; put_unaligned_le32(f, dst + 8);
- f = (f >> 32) + h3 + dctx->s[3]; put_unaligned_le32(f, dst + 12);
+ f = (f >> 32) + le32_to_cpu(digest[0]) + dctx->s[0];
+ put_unaligned_le32(f, dst + 0);
+ f = (f >> 32) + le32_to_cpu(digest[1]) + dctx->s[1];
+ put_unaligned_le32(f, dst + 4);
+ f = (f >> 32) + le32_to_cpu(digest[2]) + dctx->s[2];
+ put_unaligned_le32(f, dst + 8);
+ f = (f >> 32) + le32_to_cpu(digest[3]) + dctx->s[3];
+ put_unaligned_le32(f, dst + 12);
return 0;
}
diff --git a/include/crypto/poly1305.h b/include/crypto/poly1305.h
index 493244c46664..34317ed2071e 100644
--- a/include/crypto/poly1305.h
+++ b/include/crypto/poly1305.h
@@ -38,6 +38,22 @@ struct poly1305_desc_ctx {
bool sset;
};
+/*
+ * Poly1305 core functions. These implement the ε-almost-∆-universal hash
+ * function underlying the Poly1305 MAC, i.e. they don't add an encrypted nonce
+ * ("s key") at the end. They also only support block-aligned inputs.
+ */
+void poly1305_core_setkey(struct poly1305_key *key, const u8 *raw_key);
+static inline void poly1305_core_init(struct poly1305_state *state)
+{
+ memset(state->h, 0, sizeof(state->h));
+}
+void poly1305_core_blocks(struct poly1305_state *state,
+ const struct poly1305_key *key,
+ const void *src, unsigned int nblocks);
+void poly1305_core_emit(const struct poly1305_state *state, void *dst);
+
+/* Crypto API helper functions for the Poly1305 MAC */
int crypto_poly1305_init(struct shash_desc *desc);
unsigned int crypto_poly1305_setdesckey(struct poly1305_desc_ctx *dctx,
const u8 *src, unsigned int srclen);
--
2.19.1.930.g4563a0d9d0-goog
Hi Eric,
On Sat, Nov 17, 2018 at 1:17 AM Eric Biggers <[email protected]> wrote:
> Do you prefer that this be merged before or after Zinc? It seems it may still
> be a while before the community is satisfied with Zinc (and Wireguard which is
> in the same patchset), and I don't want this blocked unnecessarily... So on my
> part I'd prefer to just have this merged as-is.
Personally I'd prefer this be merged after Zinc, since there's work to
be done on adjusting the 20->12 in chacha20. That's not really much of
a reason though. But maybe we can just sidestep the ordering concern
all together:
What I suspect we should do is make the initial Zinc merge _without_
those top two patches that replace the crypto api's implementations
with Zinc, and defer those until after the initial merges. Those
commits are already written -- so there's no chance it won't happen
due to laziness or something -- and I think the general merge will go
a bit more smoothly if we wait until after. (Somebody suggested we do
it this way at Plumbers, and was actually a bit surprised I had
already ported the crypto API stuff to Zinc.) This way, Adiantum and
Zinc aren't potentially co-dependent in their initial merges and we
can work on the details carefully with each other after both have
landed. I figure this might make things a little bit less stressful
for both of us. How would you feel about doing it that?
Jason
From: Eric Biggers <[email protected]>
In preparation for adding XChaCha12 support, rename/refactor the NEON
implementation of ChaCha20 to support different numbers of rounds.
Signed-off-by: Eric Biggers <[email protected]>
---
arch/arm/crypto/Makefile | 4 +-
...hacha20-neon-core.S => chacha-neon-core.S} | 44 ++++++++-------
...hacha20-neon-glue.c => chacha-neon-glue.c} | 56 ++++++++++---------
3 files changed, 56 insertions(+), 48 deletions(-)
rename arch/arm/crypto/{chacha20-neon-core.S => chacha-neon-core.S} (94%)
rename arch/arm/crypto/{chacha20-neon-glue.c => chacha-neon-glue.c} (72%)
diff --git a/arch/arm/crypto/Makefile b/arch/arm/crypto/Makefile
index bd5bceef0605..005482ff9504 100644
--- a/arch/arm/crypto/Makefile
+++ b/arch/arm/crypto/Makefile
@@ -9,7 +9,7 @@ obj-$(CONFIG_CRYPTO_SHA1_ARM) += sha1-arm.o
obj-$(CONFIG_CRYPTO_SHA1_ARM_NEON) += sha1-arm-neon.o
obj-$(CONFIG_CRYPTO_SHA256_ARM) += sha256-arm.o
obj-$(CONFIG_CRYPTO_SHA512_ARM) += sha512-arm.o
-obj-$(CONFIG_CRYPTO_CHACHA20_NEON) += chacha20-neon.o
+obj-$(CONFIG_CRYPTO_CHACHA20_NEON) += chacha-neon.o
ce-obj-$(CONFIG_CRYPTO_AES_ARM_CE) += aes-arm-ce.o
ce-obj-$(CONFIG_CRYPTO_SHA1_ARM_CE) += sha1-arm-ce.o
@@ -52,7 +52,7 @@ aes-arm-ce-y := aes-ce-core.o aes-ce-glue.o
ghash-arm-ce-y := ghash-ce-core.o ghash-ce-glue.o
crct10dif-arm-ce-y := crct10dif-ce-core.o crct10dif-ce-glue.o
crc32-arm-ce-y:= crc32-ce-core.o crc32-ce-glue.o
-chacha20-neon-y := chacha20-neon-core.o chacha20-neon-glue.o
+chacha-neon-y := chacha-neon-core.o chacha-neon-glue.o
ifdef REGENERATE_ARM_CRYPTO
quiet_cmd_perl = PERL $@
diff --git a/arch/arm/crypto/chacha20-neon-core.S b/arch/arm/crypto/chacha-neon-core.S
similarity index 94%
rename from arch/arm/crypto/chacha20-neon-core.S
rename to arch/arm/crypto/chacha-neon-core.S
index 2335e5055d2b..eb22926d4912 100644
--- a/arch/arm/crypto/chacha20-neon-core.S
+++ b/arch/arm/crypto/chacha-neon-core.S
@@ -1,5 +1,5 @@
/*
- * ChaCha20 256-bit cipher algorithm, RFC7539, ARM NEON functions
+ * ChaCha/XChaCha NEON helper functions
*
* Copyright (C) 2016 Linaro, Ltd. <[email protected]>
*
@@ -27,9 +27,9 @@
* (d) vtbl.8 + vtbl.8 (multiple of 8 bits rotations only,
* needs index vector)
*
- * ChaCha20 has 16, 12, 8, and 7-bit rotations. For the 12 and 7-bit
- * rotations, the only choices are (a) and (b). We use (a) since it takes
- * two-thirds the cycles of (b) on both Cortex-A7 and Cortex-A53.
+ * ChaCha has 16, 12, 8, and 7-bit rotations. For the 12 and 7-bit rotations,
+ * the only choices are (a) and (b). We use (a) since it takes two-thirds the
+ * cycles of (b) on both Cortex-A7 and Cortex-A53.
*
* For the 16-bit rotation, we use vrev32.16 since it's consistently fastest
* and doesn't need a temporary register.
@@ -53,18 +53,19 @@
.align 5
/*
- * chacha20_permute - permute one block
+ * chacha_permute - permute one block
*
* Permute one 64-byte block where the state matrix is stored in the four NEON
* registers q0-q3. It performs matrix operations on four words in parallel,
* but requires shuffling to rearrange the words after each round.
*
+ * The round count is given in r3.
+ *
* Clobbers: r3, ip, q4-q5
*/
-chacha20_permute:
+chacha_permute:
adr ip, .Lrol8_table
- mov r3, #10
vld1.8 {d10}, [ip, :64]
.Ldoubleround:
@@ -128,16 +129,17 @@ chacha20_permute:
// x3 = shuffle32(x3, MASK(0, 3, 2, 1))
vext.8 q3, q3, q3, #4
- subs r3, r3, #1
+ subs r3, r3, #2
bne .Ldoubleround
bx lr
-ENDPROC(chacha20_permute)
+ENDPROC(chacha_permute)
-ENTRY(chacha20_block_xor_neon)
+ENTRY(chacha_block_xor_neon)
// r0: Input state matrix, s
// r1: 1 data block output, o
// r2: 1 data block input, i
+ // r3: nrounds
push {lr}
// x0..3 = s0..3
@@ -150,7 +152,7 @@ ENTRY(chacha20_block_xor_neon)
vmov q10, q2
vmov q11, q3
- bl chacha20_permute
+ bl chacha_permute
add ip, r2, #0x20
vld1.8 {q4-q5}, [r2]
@@ -177,30 +179,32 @@ ENTRY(chacha20_block_xor_neon)
vst1.8 {q2-q3}, [ip]
pop {pc}
-ENDPROC(chacha20_block_xor_neon)
+ENDPROC(chacha_block_xor_neon)
-ENTRY(hchacha20_block_neon)
+ENTRY(hchacha_block_neon)
// r0: Input state matrix, s
// r1: output (8 32-bit words)
+ // r2: nrounds
push {lr}
vld1.32 {q0-q1}, [r0]!
vld1.32 {q2-q3}, [r0]
- bl chacha20_permute
+ mov r3, r2
+ bl chacha_permute
vst1.32 {q0}, [r1]!
vst1.32 {q3}, [r1]
pop {pc}
-ENDPROC(hchacha20_block_neon)
+ENDPROC(hchacha_block_neon)
.align 4
.Lctrinc: .word 0, 1, 2, 3
.Lrol8_table: .byte 3, 0, 1, 2, 7, 4, 5, 6
.align 5
-ENTRY(chacha20_4block_xor_neon)
+ENTRY(chacha_4block_xor_neon)
push {r4-r5}
mov r4, sp // preserve the stack pointer
sub ip, sp, #0x20 // allocate a 32 byte buffer
@@ -210,9 +214,10 @@ ENTRY(chacha20_4block_xor_neon)
// r0: Input state matrix, s
// r1: 4 data blocks output, o
// r2: 4 data blocks input, i
+ // r3: nrounds
//
- // This function encrypts four consecutive ChaCha20 blocks by loading
+ // This function encrypts four consecutive ChaCha blocks by loading
// the state matrix in NEON registers four times. The algorithm performs
// each operation on the corresponding word of each state matrix, hence
// requires no word shuffling. The words are re-interleaved before the
@@ -245,7 +250,6 @@ ENTRY(chacha20_4block_xor_neon)
vdup.32 q0, d0[0]
adr ip, .Lrol8_table
- mov r3, #10
b 1f
.Ldoubleround4:
@@ -443,7 +447,7 @@ ENTRY(chacha20_4block_xor_neon)
vsri.u32 q5, q8, #25
vsri.u32 q6, q9, #25
- subs r3, r3, #1
+ subs r3, r3, #2
bne .Ldoubleround4
// x0..7[0-3] are in q0-q7, x10..15[0-3] are in q10-q15.
@@ -553,4 +557,4 @@ ENTRY(chacha20_4block_xor_neon)
pop {r4-r5}
bx lr
-ENDPROC(chacha20_4block_xor_neon)
+ENDPROC(chacha_4block_xor_neon)
diff --git a/arch/arm/crypto/chacha20-neon-glue.c b/arch/arm/crypto/chacha-neon-glue.c
similarity index 72%
rename from arch/arm/crypto/chacha20-neon-glue.c
rename to arch/arm/crypto/chacha-neon-glue.c
index f2d3b0f70a8d..385557d38634 100644
--- a/arch/arm/crypto/chacha20-neon-glue.c
+++ b/arch/arm/crypto/chacha-neon-glue.c
@@ -28,24 +28,26 @@
#include <asm/neon.h>
#include <asm/simd.h>
-asmlinkage void chacha20_block_xor_neon(u32 *state, u8 *dst, const u8 *src);
-asmlinkage void chacha20_4block_xor_neon(u32 *state, u8 *dst, const u8 *src);
-asmlinkage void hchacha20_block_neon(const u32 *state, u32 *out);
-
-static void chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
- unsigned int bytes)
+asmlinkage void chacha_block_xor_neon(const u32 *state, u8 *dst, const u8 *src,
+ int nrounds);
+asmlinkage void chacha_4block_xor_neon(const u32 *state, u8 *dst, const u8 *src,
+ int nrounds);
+asmlinkage void hchacha_block_neon(const u32 *state, u32 *out, int nrounds);
+
+static void chacha_doneon(u32 *state, u8 *dst, const u8 *src,
+ unsigned int bytes, int nrounds)
{
u8 buf[CHACHA_BLOCK_SIZE];
while (bytes >= CHACHA_BLOCK_SIZE * 4) {
- chacha20_4block_xor_neon(state, dst, src);
+ chacha_4block_xor_neon(state, dst, src, nrounds);
bytes -= CHACHA_BLOCK_SIZE * 4;
src += CHACHA_BLOCK_SIZE * 4;
dst += CHACHA_BLOCK_SIZE * 4;
state[12] += 4;
}
while (bytes >= CHACHA_BLOCK_SIZE) {
- chacha20_block_xor_neon(state, dst, src);
+ chacha_block_xor_neon(state, dst, src, nrounds);
bytes -= CHACHA_BLOCK_SIZE;
src += CHACHA_BLOCK_SIZE;
dst += CHACHA_BLOCK_SIZE;
@@ -53,13 +55,13 @@ static void chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
}
if (bytes) {
memcpy(buf, src, bytes);
- chacha20_block_xor_neon(state, buf, buf);
+ chacha_block_xor_neon(state, buf, buf, nrounds);
memcpy(dst, buf, bytes);
}
}
-static int chacha20_neon_stream_xor(struct skcipher_request *req,
- struct chacha_ctx *ctx, u8 *iv)
+static int chacha_neon_stream_xor(struct skcipher_request *req,
+ struct chacha_ctx *ctx, u8 *iv)
{
struct skcipher_walk walk;
u32 state[16];
@@ -76,8 +78,8 @@ static int chacha20_neon_stream_xor(struct skcipher_request *req,
nbytes = round_down(nbytes, walk.stride);
kernel_neon_begin();
- chacha20_doneon(state, walk.dst.virt.addr, walk.src.virt.addr,
- nbytes);
+ chacha_doneon(state, walk.dst.virt.addr, walk.src.virt.addr,
+ nbytes, ctx->nrounds);
kernel_neon_end();
err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
}
@@ -85,7 +87,7 @@ static int chacha20_neon_stream_xor(struct skcipher_request *req,
return err;
}
-static int chacha20_neon(struct skcipher_request *req)
+static int chacha_neon(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
@@ -93,10 +95,10 @@ static int chacha20_neon(struct skcipher_request *req)
if (req->cryptlen <= CHACHA_BLOCK_SIZE || !may_use_simd())
return crypto_chacha_crypt(req);
- return chacha20_neon_stream_xor(req, ctx, req->iv);
+ return chacha_neon_stream_xor(req, ctx, req->iv);
}
-static int xchacha20_neon(struct skcipher_request *req)
+static int xchacha_neon(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
@@ -110,12 +112,13 @@ static int xchacha20_neon(struct skcipher_request *req)
crypto_chacha_init(state, ctx, req->iv);
kernel_neon_begin();
- hchacha20_block_neon(state, subctx.key);
+ hchacha_block_neon(state, subctx.key, ctx->nrounds);
kernel_neon_end();
+ subctx.nrounds = ctx->nrounds;
memcpy(&real_iv[0], req->iv + 24, 8);
memcpy(&real_iv[8], req->iv + 16, 8);
- return chacha20_neon_stream_xor(req, &subctx, real_iv);
+ return chacha_neon_stream_xor(req, &subctx, real_iv);
}
static struct skcipher_alg algs[] = {
@@ -133,8 +136,8 @@ static struct skcipher_alg algs[] = {
.chunksize = CHACHA_BLOCK_SIZE,
.walksize = 4 * CHACHA_BLOCK_SIZE,
.setkey = crypto_chacha20_setkey,
- .encrypt = chacha20_neon,
- .decrypt = chacha20_neon,
+ .encrypt = chacha_neon,
+ .decrypt = chacha_neon,
}, {
.base.cra_name = "xchacha20",
.base.cra_driver_name = "xchacha20-neon",
@@ -149,12 +152,12 @@ static struct skcipher_alg algs[] = {
.chunksize = CHACHA_BLOCK_SIZE,
.walksize = 4 * CHACHA_BLOCK_SIZE,
.setkey = crypto_chacha20_setkey,
- .encrypt = xchacha20_neon,
- .decrypt = xchacha20_neon,
+ .encrypt = xchacha_neon,
+ .decrypt = xchacha_neon,
}
};
-static int __init chacha20_simd_mod_init(void)
+static int __init chacha_simd_mod_init(void)
{
if (!(elf_hwcap & HWCAP_NEON))
return -ENODEV;
@@ -162,14 +165,15 @@ static int __init chacha20_simd_mod_init(void)
return crypto_register_skciphers(algs, ARRAY_SIZE(algs));
}
-static void __exit chacha20_simd_mod_fini(void)
+static void __exit chacha_simd_mod_fini(void)
{
crypto_unregister_skciphers(algs, ARRAY_SIZE(algs));
}
-module_init(chacha20_simd_mod_init);
-module_exit(chacha20_simd_mod_fini);
+module_init(chacha_simd_mod_init);
+module_exit(chacha_simd_mod_fini);
+MODULE_DESCRIPTION("ChaCha and XChaCha stream ciphers (NEON accelerated)");
MODULE_AUTHOR("Ard Biesheuvel <[email protected]>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS_CRYPTO("chacha20");
--
2.19.1.930.g4563a0d9d0-goog
From: Eric Biggers <[email protected]>
Now that the generic implementation of ChaCha20 has been refactored to
allow varying the number of rounds, add support for XChaCha12, which is
the XSalsa construction applied to ChaCha12. ChaCha12 is one of the
three ciphers specified by the original ChaCha paper
(https://cr.yp.to/chacha/chacha-20080128.pdf: "ChaCha, a variant of
Salsa20"), alongside ChaCha8 and ChaCha20. ChaCha12 is faster than
ChaCha20 but has a lower, but still large, security margin.
We need XChaCha12 support so that it can be used in the Adiantum
encryption mode, which enables disk/file encryption on low-end mobile
devices where AES-XTS is too slow as the CPUs lack AES instructions.
We'd prefer XChaCha20 (the more popular variant), but it's too slow on
some of our target devices, so at least in some cases we do need the
XChaCha12-based version. In more detail, the problem is that Adiantum
is still much slower than we're happy with, and encryption still has a
quite noticeable effect on the feel of low-end devices. Users and
vendors push back hard against encryption that degrades the user
experience, which always risks encryption being disabled entirely. So
we need to choose the fastest option that gives us a solid margin of
security, and here that's XChaCha12. The best known attack on ChaCha
breaks only 7 rounds and has 2^235 time complexity, so ChaCha12's
security margin is still better than AES-256's. Much has been learned
about cryptanalysis of ARX ciphers since Salsa20 was originally designed
in 2005, and it now seems we can be comfortable with a smaller number of
rounds. The eSTREAM project also suggests the 12-round version of
Salsa20 as providing the best balance among the different variants:
combining very good performance with a "comfortable margin of security".
Note that it would be trivial to add vanilla ChaCha12 in addition to
XChaCha12. However, it's unneeded for now and therefore is omitted.
As discussed in the patch that introduced XChaCha20 support, I
considered splitting the code into separate chacha-common, chacha20,
xchacha20, and xchacha12 modules, so that these algorithms could be
enabled/disabled independently. However, since nearly all the code is
shared anyway, I ultimately decided there would have been little benefit
to the added complexity.
Reviewed-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Eric Biggers <[email protected]>
---
crypto/Kconfig | 8 +-
crypto/chacha_generic.c | 26 +-
crypto/testmgr.c | 6 +
crypto/testmgr.h | 578 ++++++++++++++++++++++++++++++++++++++++
include/crypto/chacha.h | 7 +
lib/chacha.c | 6 +-
6 files changed, 625 insertions(+), 6 deletions(-)
diff --git a/crypto/Kconfig b/crypto/Kconfig
index d9acbce23d4d..4fa0a4a0e861 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1387,10 +1387,10 @@ config CRYPTO_SALSA20
Bernstein <[email protected]>. See <http://cr.yp.to/snuffle.html>
config CRYPTO_CHACHA20
- tristate "ChaCha20 stream cipher algorithms"
+ tristate "ChaCha stream cipher algorithms"
select CRYPTO_BLKCIPHER
help
- The ChaCha20 and XChaCha20 stream cipher algorithms.
+ The ChaCha20, XChaCha20, and XChaCha12 stream cipher algorithms.
ChaCha20 is a 256-bit high-speed stream cipher designed by Daniel J.
Bernstein and further specified in RFC7539 for use in IETF protocols.
@@ -1403,6 +1403,10 @@ config CRYPTO_CHACHA20
while provably retaining ChaCha20's security. See also:
<https://cr.yp.to/snuffle/xsalsa-20081128.pdf>
+ XChaCha12 is XChaCha20 reduced to 12 rounds, with correspondingly
+ reduced security margin but increased performance. It can be needed
+ in some performance-sensitive scenarios.
+
config CRYPTO_CHACHA20_X86_64
tristate "ChaCha20 cipher algorithm (x86_64/SSSE3/AVX2)"
depends on X86 && 64BIT
diff --git a/crypto/chacha_generic.c b/crypto/chacha_generic.c
index 438f15a14054..35b583101f4f 100644
--- a/crypto/chacha_generic.c
+++ b/crypto/chacha_generic.c
@@ -1,5 +1,5 @@
/*
- * ChaCha20 (RFC7539) and XChaCha20 stream cipher algorithms
+ * ChaCha and XChaCha stream ciphers, including ChaCha20 (RFC7539)
*
* Copyright (C) 2015 Martin Willi
* Copyright (C) 2018 Google LLC
@@ -106,6 +106,13 @@ int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key,
}
EXPORT_SYMBOL_GPL(crypto_chacha20_setkey);
+int crypto_chacha12_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keysize)
+{
+ return chacha_setkey(tfm, key, keysize, 12);
+}
+EXPORT_SYMBOL_GPL(crypto_chacha12_setkey);
+
int crypto_chacha_crypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
@@ -168,6 +175,21 @@ static struct skcipher_alg algs[] = {
.setkey = crypto_chacha20_setkey,
.encrypt = crypto_xchacha_crypt,
.decrypt = crypto_xchacha_crypt,
+ }, {
+ .base.cra_name = "xchacha12",
+ .base.cra_driver_name = "xchacha12-generic",
+ .base.cra_priority = 100,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = XCHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .setkey = crypto_chacha12_setkey,
+ .encrypt = crypto_xchacha_crypt,
+ .decrypt = crypto_xchacha_crypt,
}
};
@@ -191,3 +213,5 @@ MODULE_ALIAS_CRYPTO("chacha20");
MODULE_ALIAS_CRYPTO("chacha20-generic");
MODULE_ALIAS_CRYPTO("xchacha20");
MODULE_ALIAS_CRYPTO("xchacha20-generic");
+MODULE_ALIAS_CRYPTO("xchacha12");
+MODULE_ALIAS_CRYPTO("xchacha12-generic");
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index a5512e69c8f3..3ff70ebc745c 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -3544,6 +3544,12 @@ static const struct alg_test_desc alg_test_descs[] = {
.suite = {
.hash = __VECS(aes_xcbc128_tv_template)
}
+ }, {
+ .alg = "xchacha12",
+ .test = alg_test_skcipher,
+ .suite = {
+ .cipher = __VECS(xchacha12_tv_template)
+ },
}, {
.alg = "xchacha20",
.test = alg_test_skcipher,
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index 371641c73cf8..3b57b2701fcb 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -31379,6 +31379,584 @@ static const struct cipher_testvec xchacha20_tv_template[] = {
},
};
+/*
+ * Same as XChaCha20 test vectors above, but recomputed the ciphertext with
+ * XChaCha12, using a modified libsodium.
+ */
+static const struct cipher_testvec xchacha12_tv_template[] = {
+ {
+ .key = "\x79\xc9\x97\x98\xac\x67\x30\x0b"
+ "\xbb\x27\x04\xc9\x5c\x34\x1e\x32"
+ "\x45\xf3\xdc\xb2\x17\x61\xb9\x8e"
+ "\x52\xff\x45\xb2\x4f\x30\x4f\xc4",
+ .klen = 32,
+ .iv = "\xb3\x3f\xfd\x30\x96\x47\x9b\xcf"
+ "\xbc\x9a\xee\x49\x41\x76\x88\xa0"
+ "\xa2\x55\x4f\x8d\x95\x38\x94\x19"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00",
+ .ctext = "\x1b\x78\x7f\xd7\xa1\x41\x68\xab"
+ "\x3d\x3f\xd1\x7b\x69\x56\xb2\xd5"
+ "\x43\xce\xeb\xaf\x36\xf0\x29\x9d"
+ "\x3a\xfb\x18\xae\x1b",
+ .len = 29,
+ }, {
+ .key = "\x9d\x23\xbd\x41\x49\xcb\x97\x9c"
+ "\xcf\x3c\x5c\x94\xdd\x21\x7e\x98"
+ "\x08\xcb\x0e\x50\xcd\x0f\x67\x81"
+ "\x22\x35\xea\xaf\x60\x1d\x62\x32",
+ .klen = 32,
+ .iv = "\xc0\x47\x54\x82\x66\xb7\xc3\x70"
+ "\xd3\x35\x66\xa2\x42\x5c\xbf\x30"
+ "\xd8\x2d\x1e\xaf\x52\x94\x10\x9e"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00",
+ .ctext = "\xfb\x32\x09\x1d\x83\x05\xae\x4c"
+ "\x13\x1f\x12\x71\xf2\xca\xb2\xeb"
+ "\x5b\x83\x14\x7d\x83\xf6\x57\x77"
+ "\x2e\x40\x1f\x92\x2c\xf9\xec\x35"
+ "\x34\x1f\x93\xdf\xfb\x30\xd7\x35"
+ "\x03\x05\x78\xc1\x20\x3b\x7a\xe3"
+ "\x62\xa3\x89\xdc\x11\x11\x45\xa8"
+ "\x82\x89\xa0\xf1\x4e\xc7\x0f\x11"
+ "\x69\xdd\x0c\x84\x2b\x89\x5c\xdc"
+ "\xf0\xde\x01\xef\xc5\x65\x79\x23"
+ "\x87\x67\xd6\x50\xd9\x8d\xd9\x92"
+ "\x54\x5b\x0e",
+ .len = 91,
+ }, {
+ .key = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .klen = 32,
+ .iv = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x67\xc6\x69\x73"
+ "\x51\xff\x4a\xec\x29\xcd\xba\xab"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .ctext = "\xdf\x2d\xc6\x21\x2a\x9d\xa1\xbb"
+ "\xc2\x77\x66\x0c\x5c\x46\xef\xa7"
+ "\x79\x1b\xb9\xdf\x55\xe2\xf9\x61"
+ "\x4c\x7b\xa4\x52\x24\xaf\xa2\xda"
+ "\xd1\x8f\x8f\xa2\x9e\x53\x4d\xc4"
+ "\xb8\x55\x98\x08\x7c\x08\xd4\x18"
+ "\x67\x8f\xef\x50\xb1\x5f\xa5\x77"
+ "\x4c\x25\xe7\x86\x26\x42\xca\x44",
+ .len = 64,
+ }, {
+ .key = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x01",
+ .klen = 32,
+ .iv = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x02\xf2\xfb\xe3\x46"
+ "\x7c\xc2\x54\xf8\x1b\xe8\xe7\x8d"
+ "\x01\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x41\x6e\x79\x20\x73\x75\x62\x6d"
+ "\x69\x73\x73\x69\x6f\x6e\x20\x74"
+ "\x6f\x20\x74\x68\x65\x20\x49\x45"
+ "\x54\x46\x20\x69\x6e\x74\x65\x6e"
+ "\x64\x65\x64\x20\x62\x79\x20\x74"
+ "\x68\x65\x20\x43\x6f\x6e\x74\x72"
+ "\x69\x62\x75\x74\x6f\x72\x20\x66"
+ "\x6f\x72\x20\x70\x75\x62\x6c\x69"
+ "\x63\x61\x74\x69\x6f\x6e\x20\x61"
+ "\x73\x20\x61\x6c\x6c\x20\x6f\x72"
+ "\x20\x70\x61\x72\x74\x20\x6f\x66"
+ "\x20\x61\x6e\x20\x49\x45\x54\x46"
+ "\x20\x49\x6e\x74\x65\x72\x6e\x65"
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+ "\x6f\x72\x20\x52\x46\x43\x20\x61"
+ "\x6e\x64\x20\x61\x6e\x79\x20\x73"
+ "\x74\x61\x74\x65\x6d\x65\x6e\x74"
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+ "\x22\x2e\x20\x53\x75\x63\x68\x20"
+ "\x73\x74\x61\x74\x65\x6d\x65\x6e"
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+ "\x64\x65\x20\x6f\x72\x61\x6c\x20"
+ "\x73\x74\x61\x74\x65\x6d\x65\x6e"
+ "\x74\x73\x20\x69\x6e\x20\x49\x45"
+ "\x54\x46\x20\x73\x65\x73\x73\x69"
+ "\x6f\x6e\x73\x2c\x20\x61\x73\x20"
+ "\x77\x65\x6c\x6c\x20\x61\x73\x20"
+ "\x77\x72\x69\x74\x74\x65\x6e\x20"
+ "\x61\x6e\x64\x20\x65\x6c\x65\x63"
+ "\x74\x72\x6f\x6e\x69\x63\x20\x63"
+ "\x6f\x6d\x6d\x75\x6e\x69\x63\x61"
+ "\x74\x69\x6f\x6e\x73\x20\x6d\x61"
+ "\x64\x65\x20\x61\x74\x20\x61\x6e"
+ "\x79\x20\x74\x69\x6d\x65\x20\x6f"
+ "\x72\x20\x70\x6c\x61\x63\x65\x2c"
+ "\x20\x77\x68\x69\x63\x68\x20\x61"
+ "\x72\x65\x20\x61\x64\x64\x72\x65"
+ "\x73\x73\x65\x64\x20\x74\x6f",
+ .ctext = "\xe4\xa6\xc8\x30\xc4\x23\x13\xd6"
+ "\x08\x4d\xc9\xb7\xa5\x64\x7c\xb9"
+ "\x71\xe2\xab\x3e\xa8\x30\x8a\x1c"
+ "\x4a\x94\x6d\x9b\xe0\xb3\x6f\xf1"
+ "\xdc\xe3\x1b\xb3\xa9\x6d\x0d\xd6"
+ "\xd0\xca\x12\xef\xe7\x5f\xd8\x61"
+ "\x3c\x82\xd3\x99\x86\x3c\x6f\x66"
+ "\x02\x06\xdc\x55\xf9\xed\xdf\x38"
+ "\xb4\xa6\x17\x00\x7f\xef\xbf\x4f"
+ "\xf8\x36\xf1\x60\x7e\x47\xaf\xdb"
+ "\x55\x9b\x12\xcb\x56\x44\xa7\x1f"
+ "\xd3\x1a\x07\x3b\x00\xec\xe6\x4c"
+ "\xa2\x43\x27\xdf\x86\x19\x4f\x16"
+ "\xed\xf9\x4a\xf3\x63\x6f\xfa\x7f"
+ "\x78\x11\xf6\x7d\x97\x6f\xec\x6f"
+ "\x85\x0f\x5c\x36\x13\x8d\x87\xe0"
+ "\x80\xb1\x69\x0b\x98\x89\x9c\x4e"
+ "\xf8\xdd\xee\x5c\x0a\x85\xce\xd4"
+ "\xea\x1b\x48\xbe\x08\xf8\xe2\xa8"
+ "\xa5\xb0\x3c\x79\xb1\x15\xb4\xb9"
+ "\x75\x10\x95\x35\x81\x7e\x26\xe6"
+ "\x78\xa4\x88\xcf\xdb\x91\x34\x18"
+ "\xad\xd7\x8e\x07\x7d\xab\x39\xf9"
+ "\xa3\x9e\xa5\x1d\xbb\xed\x61\xfd"
+ "\xdc\xb7\x5a\x27\xfc\xb5\xc9\x10"
+ "\xa8\xcc\x52\x7f\x14\x76\x90\xe7"
+ "\x1b\x29\x60\x74\xc0\x98\x77\xbb"
+ "\xe0\x54\xbb\x27\x49\x59\x1e\x62"
+ "\x3d\xaf\x74\x06\xa4\x42\x6f\xc6"
+ "\x52\x97\xc4\x1d\xc4\x9f\xe2\xe5"
+ "\x38\x57\x91\xd1\xa2\x28\xcc\x40"
+ "\xcc\x70\x59\x37\xfc\x9f\x4b\xda"
+ "\xa0\xeb\x97\x9a\x7d\xed\x14\x5c"
+ "\x9c\xb7\x93\x26\x41\xa8\x66\xdd"
+ "\x87\x6a\xc0\xd3\xc2\xa9\x3e\xae"
+ "\xe9\x72\xfe\xd1\xb3\xac\x38\xea"
+ "\x4d\x15\xa9\xd5\x36\x61\xe9\x96"
+ "\x6c\x23\xf8\x43\xe4\x92\x29\xd9"
+ "\x8b\x78\xf7\x0a\x52\xe0\x19\x5b"
+ "\x59\x69\x5b\x5d\xa1\x53\xc4\x68"
+ "\xe1\xbb\xac\x89\x14\xe2\xe2\x85"
+ "\x41\x18\xf5\xb3\xd1\xfa\x68\x19"
+ "\x44\x78\xdc\xcf\xe7\x88\x2d\x52"
+ "\x5f\x40\xb5\x7e\xf8\x88\xa2\xae"
+ "\x4a\xb2\x07\x35\x9d\x9b\x07\x88"
+ "\xb7\x00\xd0\x0c\xb6\xa0\x47\x59"
+ "\xda\x4e\xc9\xab\x9b\x8a\x7b",
+
+ .len = 375,
+ .also_non_np = 1,
+ .np = 3,
+ .tap = { 375 - 20, 4, 16 },
+
+ }, {
+ .key = "\x1c\x92\x40\xa5\xeb\x55\xd3\x8a"
+ "\xf3\x33\x88\x86\x04\xf6\xb5\xf0"
+ "\x47\x39\x17\xc1\x40\x2b\x80\x09"
+ "\x9d\xca\x5c\xbc\x20\x70\x75\xc0",
+ .klen = 32,
+ .iv = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x02\x76\x5a\x2e\x63"
+ "\x33\x9f\xc9\x9a\x66\x32\x0d\xb7"
+ "\x2a\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x27\x54\x77\x61\x73\x20\x62\x72"
+ "\x69\x6c\x6c\x69\x67\x2c\x20\x61"
+ "\x6e\x64\x20\x74\x68\x65\x20\x73"
+ "\x6c\x69\x74\x68\x79\x20\x74\x6f"
+ "\x76\x65\x73\x0a\x44\x69\x64\x20"
+ "\x67\x79\x72\x65\x20\x61\x6e\x64"
+ "\x20\x67\x69\x6d\x62\x6c\x65\x20"
+ "\x69\x6e\x20\x74\x68\x65\x20\x77"
+ "\x61\x62\x65\x3a\x0a\x41\x6c\x6c"
+ "\x20\x6d\x69\x6d\x73\x79\x20\x77"
+ "\x65\x72\x65\x20\x74\x68\x65\x20"
+ "\x62\x6f\x72\x6f\x67\x6f\x76\x65"
+ "\x73\x2c\x0a\x41\x6e\x64\x20\x74"
+ "\x68\x65\x20\x6d\x6f\x6d\x65\x20"
+ "\x72\x61\x74\x68\x73\x20\x6f\x75"
+ "\x74\x67\x72\x61\x62\x65\x2e",
+ .ctext = "\xb9\x68\xbc\x6a\x24\xbc\xcc\xd8"
+ "\x9b\x2a\x8d\x5b\x96\xaf\x56\xe3"
+ "\x11\x61\xe7\xa7\x9b\xce\x4e\x7d"
+ "\x60\x02\x48\xac\xeb\xd5\x3a\x26"
+ "\x9d\x77\x3b\xb5\x32\x13\x86\x8e"
+ "\x20\x82\x26\x72\xae\x64\x1b\x7e"
+ "\x2e\x01\x68\xb4\x87\x45\xa1\x24"
+ "\xe4\x48\x40\xf0\xaa\xac\xee\xa9"
+ "\xfc\x31\xad\x9d\x89\xa3\xbb\xd2"
+ "\xe4\x25\x13\xad\x0f\x5e\xdf\x3c"
+ "\x27\xab\xb8\x62\x46\x22\x30\x48"
+ "\x55\x2c\x4e\x84\x78\x1d\x0d\x34"
+ "\x8d\x3c\x91\x0a\x7f\x5b\x19\x9f"
+ "\x97\x05\x4c\xa7\x62\x47\x8b\xc5"
+ "\x44\x2e\x20\x33\xdd\xa0\x82\xa9"
+ "\x25\x76\x37\xe6\x3c\x67\x5b",
+ .len = 127,
+ }, {
+ .key = "\x1c\x92\x40\xa5\xeb\x55\xd3\x8a"
+ "\xf3\x33\x88\x86\x04\xf6\xb5\xf0"
+ "\x47\x39\x17\xc1\x40\x2b\x80\x09"
+ "\x9d\xca\x5c\xbc\x20\x70\x75\xc0",
+ .klen = 32,
+ .iv = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x01\x31\x58\xa3\x5a"
+ "\x25\x5d\x05\x17\x58\xe9\x5e\xd4"
+ "\x1c\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x49\xee\xe0\xdc\x24\x90\x40\xcd"
+ "\xc5\x40\x8f\x47\x05\xbc\xdd\x81"
+ "\x47\xc6\x8d\xe6\xb1\x8f\xd7\xcb"
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+ "\x63\xdc\x7b\xd1\xff\xaa\x8b\xab"
+ "\x82\x6b\x37\x04\xeb\x74\xbe\x79"
+ "\xb9\x83\x90\xef\x20\x59\x46\xff"
+ "\xe9\x97\x3e\x2f\xee\xb6\x64\x18"
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+ "\xa1\xb5\x01\xa6\x47\xd3\x11\xd4"
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+ "\xb1\xb9\x07\x6d\x16\x72\xae\x46"
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+ "\x7e\x35\xe5\xb4\xda\x7e\xf4\xde"
+ "\xf7\x32\x87\xcd\x93\xbf\x11\x56"
+ "\x11\xbe\x08\x74\xe1\x69\xad\xe2"
+ "\xd7\xf8\x86\x75\x8a\x3c\xa4\xbe"
+ "\x70\xa7\x1b\xfc\x0b\x44\x2a\x76"
+ "\x35\xea\x5d\x85\x81\xaf\x85\xeb"
+ "\xa0\x1c\x61\xc2\xf7\x4f\xa5\xdc"
+ "\x02\x7f\xf6\x95\x40\x6e\x8a\x9a"
+ "\xf3\x5d\x25\x6e\x14\x3a\x22\xc9"
+ "\x37\x1c\xeb\x46\x54\x3f\xa5\x91"
+ "\xc2\xb5\x8c\xfe\x53\x08\x97\x32"
+ "\x1b\xb2\x30\x27\xfe\x25\x5d\xdc"
+ "\x08\x87\xd0\xe5\x94\x1a\xd4\xf1"
+ "\xfe\xd6\xb4\xa3\xe6\x74\x81\x3c"
+ "\x1b\xb7\x31\xa7\x22\xfd\xd4\xdd"
+ "\x20\x4e\x7c\x51\xb0\x60\x73\xb8"
+ "\x9c\xac\x91\x90\x7e\x01\xb0\xe1"
+ "\x8a\x2f\x75\x1c\x53\x2a\x98\x2a"
+ "\x06\x52\x95\x52\xb2\xe9\x25\x2e"
+ "\x4c\xe2\x5a\x00\xb2\x13\x81\x03"
+ "\x77\x66\x0d\xa5\x99\xda\x4e\x8c"
+ "\xac\xf3\x13\x53\x27\x45\xaf\x64"
+ "\x46\xdc\xea\x23\xda\x97\xd1\xab"
+ "\x7d\x6c\x30\x96\x1f\xbc\x06\x34"
+ "\x18\x0b\x5e\x21\x35\x11\x8d\x4c"
+ "\xe0\x2d\xe9\x50\x16\x74\x81\xa8"
+ "\xb4\x34\xb9\x72\x42\xa6\xcc\xbc"
+ "\xca\x34\x83\x27\x10\x5b\x68\x45"
+ "\x8f\x52\x22\x0c\x55\x3d\x29\x7c"
+ "\xe3\xc0\x66\x05\x42\x91\x5f\x58"
+ "\xfe\x4a\x62\xd9\x8c\xa9\x04\x19"
+ "\x04\xa9\x08\x4b\x57\xfc\x67\x53"
+ "\x08\x7c\xbc\x66\x8a\xb0\xb6\x9f"
+ "\x92\xd6\x41\x7c\x5b\x2a\x00\x79"
+ "\x72",
+ .ctext = "\xe1\xb6\x8b\x5c\x80\xb8\xcc\x08"
+ "\x1b\x84\xb2\xd1\xad\xa4\x70\xac"
+ "\x67\xa9\x39\x27\xac\xb4\x5b\xb7"
+ "\x4c\x26\x77\x23\x1d\xce\x0a\xbe"
+ "\x18\x9e\x42\x8b\xbd\x7f\xd6\xf1"
+ "\xf1\x6b\xe2\x6d\x7f\x92\x0e\xcb"
+ "\xb8\x79\xba\xb4\xac\x7e\x2d\xc0"
+ "\x9e\x83\x81\x91\xd5\xea\xc3\x12"
+ "\x8d\xa4\x26\x70\xa4\xf9\x71\x0b"
+ "\xbd\x2e\xe1\xb3\x80\x42\x25\xb3"
+ "\x0b\x31\x99\xe1\x0d\xde\xa6\x90"
+ "\xf2\xa3\x10\xf7\xe5\xf3\x83\x1e"
+ "\x2c\xfb\x4d\xf0\x45\x3d\x28\x3c"
+ "\xb8\xf1\xcb\xbf\x67\xd8\x43\x5a"
+ "\x9d\x7b\x73\x29\x88\x0f\x13\x06"
+ "\x37\x50\x0d\x7c\xe6\x9b\x07\xdd"
+ "\x7e\x01\x1f\x81\x90\x10\x69\xdb"
+ "\xa4\xad\x8a\x5e\xac\x30\x72\xf2"
+ "\x36\xcd\xe3\x23\x49\x02\x93\xfa"
+ "\x3d\xbb\xe2\x98\x83\xeb\xe9\x8d"
+ "\xb3\x8f\x11\xaa\x53\xdb\xaf\x2e"
+ "\x95\x13\x99\x3d\x71\xbd\x32\x92"
+ "\xdd\xfc\x9d\x5e\x6f\x63\x2c\xee"
+ "\x91\x1f\x4c\x64\x3d\x87\x55\x0f"
+ "\xcc\x3d\x89\x61\x53\x02\x57\x8f"
+ "\xe4\x77\x29\x32\xaf\xa6\x2f\x0a"
+ "\xae\x3c\x3f\x3f\xf4\xfb\x65\x52"
+ "\xc5\xc1\x78\x78\x53\x28\xad\xed"
+ "\xd1\x67\x37\xc7\x59\x70\xcd\x0a"
+ "\xb8\x0f\x80\x51\x9f\xc0\x12\x5e"
+ "\x06\x0a\x7e\xec\x24\x5f\x73\x00"
+ "\xb1\x0b\x31\x47\x4f\x73\x8d\xb4"
+ "\xce\xf3\x55\x45\x6c\x84\x27\xba"
+ "\xb9\x6f\x03\x4a\xeb\x98\x88\x6e"
+ "\x53\xed\x25\x19\x0d\x8f\xfe\xca"
+ "\x60\xe5\x00\x93\x6e\x3c\xff\x19"
+ "\xae\x08\x3b\x8a\xa6\x84\x05\xfe"
+ "\x9b\x59\xa0\x8c\xc8\x05\x45\xf5"
+ "\x05\x37\xdc\x45\x6f\x8b\x95\x8c"
+ "\x4e\x11\x45\x7a\xce\x21\xa5\xf7"
+ "\x71\x67\xb9\xce\xd7\xf9\xe9\x5e"
+ "\x60\xf5\x53\x7a\xa8\x85\x14\x03"
+ "\xa0\x92\xec\xf3\x51\x80\x84\xc4"
+ "\xdc\x11\x9e\x57\xce\x4b\x45\xcf"
+ "\x90\x95\x85\x0b\x96\xe9\xee\x35"
+ "\x10\xb8\x9b\xf2\x59\x4a\xc6\x7e"
+ "\x85\xe5\x6f\x38\x51\x93\x40\x0c"
+ "\x99\xd7\x7f\x32\xa8\x06\x27\xd1"
+ "\x2b\xd5\xb5\x3a\x1a\xe1\x5e\xda"
+ "\xcd\x5a\x50\x30\x3c\xc7\xe7\x65"
+ "\xa6\x07\x0b\x98\x91\xc6\x20\x27"
+ "\x2a\x03\x63\x1b\x1e\x3d\xaf\xc8"
+ "\x71\x48\x46\x6a\x64\x28\xf9\x3d"
+ "\xd1\x1d\xab\xc8\x40\x76\xc2\x39"
+ "\x4e\x00\x75\xd2\x0e\x82\x58\x8c"
+ "\xd3\x73\x5a\xea\x46\x89\xbe\xfd"
+ "\x4e\x2c\x0d\x94\xaa\x9b\x68\xac"
+ "\x86\x87\x30\x7e\xa9\x16\xcd\x59"
+ "\xd2\xa6\xbe\x0a\xd8\xf5\xfd\x2d"
+ "\x49\x69\xd2\x1a\x90\xd2\x1b\xed"
+ "\xff\x71\x04\x87\x87\x21\xc4\xb8"
+ "\x1f\x5b\x51\x33\xd0\xd6\x59\x9a"
+ "\x03\x0e\xd3\x8b\xfb\x57\x73\xfd"
+ "\x5a\x52\x63\x82\xc8\x85\x2f\xcb"
+ "\x74\x6d\x4e\xd9\x68\x37\x85\x6a"
+ "\xd4\xfb\x94\xed\x8d\xd1\x1a\xaf"
+ "\x76\xa7\xb7\x88\xd0\x2b\x4e\xda"
+ "\xec\x99\x94\x27\x6f\x87\x8c\xdf"
+ "\x4b\x5e\xa6\x66\xdd\xcb\x33\x7b"
+ "\x64\x94\x31\xa8\x37\xa6\x1d\xdb"
+ "\x0d\x5c\x93\xa4\x40\xf9\x30\x53"
+ "\x4b\x74\x8d\xdd\xf6\xde\x3c\xac"
+ "\x5c\x80\x01\x3a\xef\xb1\x9a\x02"
+ "\x0c\x22\x8e\xe7\x44\x09\x74\x4c"
+ "\xf2\x9a\x27\x69\x7f\x12\x32\x36"
+ "\xde\x92\xdf\xde\x8f\x5b\x31\xab"
+ "\x4a\x01\x26\xe0\xb1\xda\xe8\x37"
+ "\x21\x64\xe8\xff\x69\xfc\x9e\x41"
+ "\xd2\x96\x2d\x18\x64\x98\x33\x78"
+ "\x24\x61\x73\x9b\x47\x29\xf1\xa7"
+ "\xcb\x27\x0f\xf0\x85\x6d\x8c\x9d"
+ "\x2c\x95\x9e\xe5\xb2\x8e\x30\x29"
+ "\x78\x8a\x9d\x65\xb4\x8e\xde\x7b"
+ "\xd9\x00\x50\xf5\x7f\x81\xc3\x1b"
+ "\x25\x85\xeb\xc2\x8c\x33\x22\x1e"
+ "\x68\x38\x22\x30\xd8\x2e\x00\x98"
+ "\x85\x16\x06\x56\xb4\x81\x74\x20"
+ "\x95\xdb\x1c\x05\x19\xe8\x23\x4d"
+ "\x65\x5d\xcc\xd8\x7f\xc4\x2d\x0f"
+ "\x57\x26\x71\x07\xad\xaa\x71\x9f"
+ "\x19\x76\x2f\x25\x51\x88\xe4\xc0"
+ "\x82\x6e\x08\x05\x37\x04\xee\x25"
+ "\x23\x90\xe9\x4e\xce\x9b\x16\xc1"
+ "\x31\xe7\x6e\x2c\x1b\xe1\x85\x9a"
+ "\x0c\x8c\xbb\x12\x1e\x68\x7b\x93"
+ "\xa9\x3c\x39\x56\x23\x3e\x6e\xc7"
+ "\x77\x84\xd3\xe0\x86\x59\xaa\xb9"
+ "\xd5\x53\x58\xc9\x0a\x83\x5f\x85"
+ "\xd8\x47\x14\x67\x8a\x3c\x17\xe0"
+ "\xab\x02\x51\xea\xf1\xf0\x4f\x30"
+ "\x7d\xe0\x92\xc2\x5f\xfb\x19\x5a"
+ "\x3f\xbd\xf4\x39\xa4\x31\x0c\x39"
+ "\xd1\xae\x4e\xf7\x65\x7f\x1f\xce"
+ "\xc2\x39\xd1\x84\xd4\xe5\x02\xe0"
+ "\x58\xaa\xf1\x5e\x81\xaf\x7f\x72"
+ "\x0f\x08\x99\x43\xb9\xd8\xac\x41"
+ "\x35\x55\xf2\xb2\xd4\x98\xb8\x3b"
+ "\x2b\x3c\x3e\x16\x06\x31\xfc\x79"
+ "\x47\x38\x63\x51\xc5\xd0\x26\xd7"
+ "\x43\xb4\x2b\xd9\xc5\x05\xf2\x9d"
+ "\x18\xc9\x26\x82\x56\xd2\x11\x05"
+ "\xb6\x89\xb4\x43\x9c\xb5\x9d\x11"
+ "\x6c\x83\x37\x71\x27\x1c\xae\xbf"
+ "\xcd\x57\xd2\xee\x0d\x5a\x15\x26"
+ "\x67\x88\x80\x80\x1b\xdc\xc1\x62"
+ "\xdd\x4c\xff\x92\x5c\x6c\xe1\xa0"
+ "\xe3\x79\xa9\x65\x8c\x8c\x14\x42"
+ "\xe5\x11\xd2\x1a\xad\xa9\x56\x6f"
+ "\x98\xfc\x8a\x7b\x56\x1f\xc6\xc1"
+ "\x52\x12\x92\x9b\x41\x0f\x4b\xae"
+ "\x1b\x4a\xbc\xfe\x23\xb6\x94\x70"
+ "\x04\x30\x9e\x69\x47\xbe\xb8\x8f"
+ "\xca\x45\xd7\x8a\xf4\x78\x3e\xaa"
+ "\x71\x17\xd8\x1e\xb8\x11\x8f\xbc"
+ "\xc8\x1a\x65\x7b\x41\x89\x72\xc7"
+ "\x5f\xbe\xc5\x2a\xdb\x5c\x54\xf9"
+ "\x25\xa3\x7a\x80\x56\x9c\x8c\xab"
+ "\x26\x19\x10\x36\xa6\xf3\x14\x79"
+ "\x40\x98\x70\x68\xb7\x35\xd9\xb9"
+ "\x27\xd4\xe7\x74\x5b\x3d\x97\xb4"
+ "\xd9\xaa\xd9\xf2\xb5\x14\x84\x1f"
+ "\xa9\xde\x12\x44\x5b\x00\xc0\xbc"
+ "\xc8\x11\x25\x1b\x67\x7a\x15\x72"
+ "\xa6\x31\x6f\xf4\x68\x7a\x86\x9d"
+ "\x43\x1c\x5f\x16\xd3\xad\x2e\x52"
+ "\xf3\xb4\xc3\xfa\x27\x2e\x68\x6c"
+ "\x06\xe7\x4c\x4f\xa2\xe0\xe4\x21"
+ "\x5d\x9e\x33\x58\x8d\xbf\xd5\x70"
+ "\xf8\x80\xa5\xdd\xe7\x18\x79\xfa"
+ "\x7b\xfd\x09\x69\x2c\x37\x32\xa8"
+ "\x65\xfa\x8d\x8b\x5c\xcc\xe8\xf3"
+ "\x37\xf6\xa6\xc6\x5c\xa2\x66\x79"
+ "\xfa\x8a\xa7\xd1\x0b\x2e\x1b\x5e"
+ "\x95\x35\x00\x76\xae\x42\xf7\x50"
+ "\x51\x78\xfb\xb4\x28\x24\xde\x1a"
+ "\x70\x8b\xed\xca\x3c\x5e\xe4\xbd"
+ "\x28\xb5\xf3\x76\x4f\x67\x5d\x81"
+ "\xb2\x60\x87\xd9\x7b\x19\x1a\xa7"
+ "\x79\xa2\xfa\x3f\x9e\xa9\xd7\x25"
+ "\x61\xe1\x74\x31\xa2\x77\xa0\x1b"
+ "\xf6\xf7\xcb\xc5\xaa\x9e\xce\xf9"
+ "\x9b\x96\xef\x51\xc3\x1a\x44\x96"
+ "\xae\x17\x50\xab\x29\x08\xda\xcc"
+ "\x1a\xb3\x12\xd0\x24\xe4\xe2\xe0"
+ "\xc6\xe3\xcc\x82\xd0\xba\x47\x4c"
+ "\x3f\x49\xd7\xe8\xb6\x61\xaa\x65"
+ "\x25\x18\x40\x2d\x62\x25\x02\x71"
+ "\x61\xa2\xc1\xb2\x13\xd2\x71\x3f"
+ "\x43\x1a\xc9\x09\x92\xff\xd5\x57"
+ "\xf0\xfc\x5e\x1c\xf1\xf5\xf9\xf3"
+ "\x5b",
+ .len = 1281,
+ .also_non_np = 1,
+ .np = 3,
+ .tap = { 1200, 1, 80 },
+ },
+};
+
/*
* CTS (Cipher Text Stealing) mode tests
*/
diff --git a/include/crypto/chacha.h b/include/crypto/chacha.h
index ae79e9983c72..3d261f5cd156 100644
--- a/include/crypto/chacha.h
+++ b/include/crypto/chacha.h
@@ -5,6 +5,11 @@
* XChaCha extends ChaCha's nonce to 192 bits, while provably retaining ChaCha's
* security. Here they share the same key size, tfm context, and setkey
* function; only their IV size and encrypt/decrypt function differ.
+ *
+ * The ChaCha paper specifies 20, 12, and 8-round variants. In general, it is
+ * recommended to use the 20-round variant ChaCha20. However, the other
+ * variants can be needed in some performance-sensitive scenarios. The generic
+ * ChaCha code currently allows only the 20 and 12-round variants.
*/
#ifndef _CRYPTO_CHACHA_H
@@ -39,6 +44,8 @@ void crypto_chacha_init(u32 *state, struct chacha_ctx *ctx, u8 *iv);
int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keysize);
+int crypto_chacha12_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keysize);
int crypto_chacha_crypt(struct skcipher_request *req);
int crypto_xchacha_crypt(struct skcipher_request *req);
diff --git a/lib/chacha.c b/lib/chacha.c
index 1bdc688c18df..a46d2832dbab 100644
--- a/lib/chacha.c
+++ b/lib/chacha.c
@@ -21,7 +21,7 @@ static void chacha_permute(u32 *x, int nrounds)
int i;
/* whitelist the allowed round counts */
- WARN_ON_ONCE(nrounds != 20);
+ WARN_ON_ONCE(nrounds != 20 && nrounds != 12);
for (i = 0; i < nrounds; i += 2) {
x[0] += x[4]; x[12] = rol32(x[12] ^ x[0], 16);
@@ -70,7 +70,7 @@ static void chacha_permute(u32 *x, int nrounds)
* chacha_block - generate one keystream block and increment block counter
* @state: input state matrix (16 32-bit words)
* @stream: output keystream block (64 bytes)
- * @nrounds: number of rounds (currently must be 20)
+ * @nrounds: number of rounds (20 or 12; 20 is recommended)
*
* This is the ChaCha core, a function from 64-byte strings to 64-byte strings.
* The caller has already converted the endianness of the input. This function
@@ -96,7 +96,7 @@ EXPORT_SYMBOL(chacha_block);
* hchacha_block - abbreviated ChaCha core, for XChaCha
* @in: input state matrix (16 32-bit words)
* @out: output (8 32-bit words)
- * @nrounds: number of rounds (currently must be 20)
+ * @nrounds: number of rounds (20 or 12; 20 is recommended)
*
* HChaCha is the ChaCha equivalent of HSalsa and is an intermediate step
* towards XChaCha (see https://cr.yp.to/snuffle/xsalsa-20081128.pdf). HChaCha
--
2.19.1.930.g4563a0d9d0-goog
From: Eric Biggers <[email protected]>
Add support for the XChaCha20 stream cipher. XChaCha20 is the
application of the XSalsa20 construction
(https://cr.yp.to/snuffle/xsalsa-20081128.pdf) to ChaCha20 rather than
to Salsa20. XChaCha20 extends ChaCha20's nonce length from 64 bits (or
96 bits, depending on convention) to 192 bits, while provably retaining
ChaCha20's security. XChaCha20 uses the ChaCha20 permutation to map the
key and first 128 nonce bits to a 256-bit subkey. Then, it does the
ChaCha20 stream cipher with the subkey and remaining 64 bits of nonce.
We need XChaCha support in order to add support for the Adiantum
encryption mode. Note that to meet our performance requirements, we
actually plan to primarily use the variant XChaCha12. But we believe
it's wise to first add XChaCha20 as a baseline with a higher security
margin, in case there are any situations where it can be used.
Supporting both variants is straightforward.
Since XChaCha20's subkey differs for each request, XChaCha20 can't be a
template that wraps ChaCha20; that would require re-keying the
underlying ChaCha20 for every request, which wouldn't be thread-safe.
Instead, we make XChaCha20 its own top-level algorithm which calls the
ChaCha20 streaming implementation internally.
Similar to the existing ChaCha20 implementation, we define the IV to be
the nonce and stream position concatenated together. This allows users
to seek to any position in the stream.
I considered splitting the code into separate chacha20-common, chacha20,
and xchacha20 modules, so that chacha20 and xchacha20 could be
enabled/disabled independently. However, since nearly all the code is
shared anyway, I ultimately decided there would have been little benefit
to the added complexity of separate modules.
Reviewed-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Eric Biggers <[email protected]>
---
crypto/Kconfig | 14 +-
crypto/chacha20_generic.c | 120 +++++---
crypto/testmgr.c | 6 +
crypto/testmgr.h | 577 ++++++++++++++++++++++++++++++++++++++
include/crypto/chacha20.h | 14 +-
5 files changed, 689 insertions(+), 42 deletions(-)
diff --git a/crypto/Kconfig b/crypto/Kconfig
index f7a235db56aa..d9acbce23d4d 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1387,18 +1387,22 @@ config CRYPTO_SALSA20
Bernstein <[email protected]>. See <http://cr.yp.to/snuffle.html>
config CRYPTO_CHACHA20
- tristate "ChaCha20 cipher algorithm"
+ tristate "ChaCha20 stream cipher algorithms"
select CRYPTO_BLKCIPHER
help
- ChaCha20 cipher algorithm, RFC7539.
+ The ChaCha20 and XChaCha20 stream cipher algorithms.
ChaCha20 is a 256-bit high-speed stream cipher designed by Daniel J.
Bernstein and further specified in RFC7539 for use in IETF protocols.
- This is the portable C implementation of ChaCha20.
-
- See also:
+ This is the portable C implementation of ChaCha20. See also:
<http://cr.yp.to/chacha/chacha-20080128.pdf>
+ XChaCha20 is the application of the XSalsa20 construction to ChaCha20
+ rather than to Salsa20. XChaCha20 extends ChaCha20's nonce length
+ from 64 bits (or 96 bits using the RFC7539 convention) to 192 bits,
+ while provably retaining ChaCha20's security. See also:
+ <https://cr.yp.to/snuffle/xsalsa-20081128.pdf>
+
config CRYPTO_CHACHA20_X86_64
tristate "ChaCha20 cipher algorithm (x86_64/SSSE3/AVX2)"
depends on X86 && 64BIT
diff --git a/crypto/chacha20_generic.c b/crypto/chacha20_generic.c
index 3529521d72a4..4305b1b62b16 100644
--- a/crypto/chacha20_generic.c
+++ b/crypto/chacha20_generic.c
@@ -1,7 +1,8 @@
/*
- * ChaCha20 256-bit cipher algorithm, RFC7539
+ * ChaCha20 (RFC7539) and XChaCha20 stream cipher algorithms
*
* Copyright (C) 2015 Martin Willi
+ * Copyright (C) 2018 Google LLC
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -36,6 +37,31 @@ static void chacha20_docrypt(u32 *state, u8 *dst, const u8 *src,
}
}
+static int chacha20_stream_xor(struct skcipher_request *req,
+ struct chacha20_ctx *ctx, u8 *iv)
+{
+ struct skcipher_walk walk;
+ u32 state[16];
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ crypto_chacha20_init(state, ctx, iv);
+
+ while (walk.nbytes > 0) {
+ unsigned int nbytes = walk.nbytes;
+
+ if (nbytes < walk.total)
+ nbytes = round_down(nbytes, walk.stride);
+
+ chacha20_docrypt(state, walk.dst.virt.addr, walk.src.virt.addr,
+ nbytes);
+ err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
+ }
+
+ return err;
+}
+
void crypto_chacha20_init(u32 *state, struct chacha20_ctx *ctx, u8 *iv)
{
state[0] = 0x61707865; /* "expa" */
@@ -77,54 +103,74 @@ int crypto_chacha20_crypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
- struct skcipher_walk walk;
- u32 state[16];
- int err;
-
- err = skcipher_walk_virt(&walk, req, false);
- crypto_chacha20_init(state, ctx, walk.iv);
+ return chacha20_stream_xor(req, ctx, req->iv);
+}
+EXPORT_SYMBOL_GPL(crypto_chacha20_crypt);
- while (walk.nbytes > 0) {
- unsigned int nbytes = walk.nbytes;
+int crypto_xchacha20_crypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct chacha20_ctx subctx;
+ u32 state[16];
+ u8 real_iv[16];
- if (nbytes < walk.total)
- nbytes = round_down(nbytes, walk.stride);
+ /* Compute the subkey given the original key and first 128 nonce bits */
+ crypto_chacha20_init(state, ctx, req->iv);
+ hchacha20_block(state, subctx.key);
- chacha20_docrypt(state, walk.dst.virt.addr, walk.src.virt.addr,
- nbytes);
- err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
- }
+ /* Build the real IV */
+ memcpy(&real_iv[0], req->iv + 24, 8); /* stream position */
+ memcpy(&real_iv[8], req->iv + 16, 8); /* remaining 64 nonce bits */
- return err;
+ /* Generate the stream and XOR it with the data */
+ return chacha20_stream_xor(req, &subctx, real_iv);
}
-EXPORT_SYMBOL_GPL(crypto_chacha20_crypt);
-
-static struct skcipher_alg alg = {
- .base.cra_name = "chacha20",
- .base.cra_driver_name = "chacha20-generic",
- .base.cra_priority = 100,
- .base.cra_blocksize = 1,
- .base.cra_ctxsize = sizeof(struct chacha20_ctx),
- .base.cra_module = THIS_MODULE,
-
- .min_keysize = CHACHA20_KEY_SIZE,
- .max_keysize = CHACHA20_KEY_SIZE,
- .ivsize = CHACHA20_IV_SIZE,
- .chunksize = CHACHA20_BLOCK_SIZE,
- .setkey = crypto_chacha20_setkey,
- .encrypt = crypto_chacha20_crypt,
- .decrypt = crypto_chacha20_crypt,
+EXPORT_SYMBOL_GPL(crypto_xchacha20_crypt);
+
+static struct skcipher_alg algs[] = {
+ {
+ .base.cra_name = "chacha20",
+ .base.cra_driver_name = "chacha20-generic",
+ .base.cra_priority = 100,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha20_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA20_KEY_SIZE,
+ .max_keysize = CHACHA20_KEY_SIZE,
+ .ivsize = CHACHA20_IV_SIZE,
+ .chunksize = CHACHA20_BLOCK_SIZE,
+ .setkey = crypto_chacha20_setkey,
+ .encrypt = crypto_chacha20_crypt,
+ .decrypt = crypto_chacha20_crypt,
+ }, {
+ .base.cra_name = "xchacha20",
+ .base.cra_driver_name = "xchacha20-generic",
+ .base.cra_priority = 100,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha20_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA20_KEY_SIZE,
+ .max_keysize = CHACHA20_KEY_SIZE,
+ .ivsize = XCHACHA20_IV_SIZE,
+ .chunksize = CHACHA20_BLOCK_SIZE,
+ .setkey = crypto_chacha20_setkey,
+ .encrypt = crypto_xchacha20_crypt,
+ .decrypt = crypto_xchacha20_crypt,
+ }
};
static int __init chacha20_generic_mod_init(void)
{
- return crypto_register_skcipher(&alg);
+ return crypto_register_skciphers(algs, ARRAY_SIZE(algs));
}
static void __exit chacha20_generic_mod_fini(void)
{
- crypto_unregister_skcipher(&alg);
+ crypto_unregister_skciphers(algs, ARRAY_SIZE(algs));
}
module_init(chacha20_generic_mod_init);
@@ -132,6 +178,8 @@ module_exit(chacha20_generic_mod_fini);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Martin Willi <[email protected]>");
-MODULE_DESCRIPTION("chacha20 cipher algorithm");
+MODULE_DESCRIPTION("ChaCha20 and XChaCha20 stream ciphers (generic)");
MODULE_ALIAS_CRYPTO("chacha20");
MODULE_ALIAS_CRYPTO("chacha20-generic");
+MODULE_ALIAS_CRYPTO("xchacha20");
+MODULE_ALIAS_CRYPTO("xchacha20-generic");
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index b1f79c6bf409..a5512e69c8f3 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -3544,6 +3544,12 @@ static const struct alg_test_desc alg_test_descs[] = {
.suite = {
.hash = __VECS(aes_xcbc128_tv_template)
}
+ }, {
+ .alg = "xchacha20",
+ .test = alg_test_skcipher,
+ .suite = {
+ .cipher = __VECS(xchacha20_tv_template)
+ },
}, {
.alg = "xts(aes)",
.test = alg_test_skcipher,
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index 1fe7b97ba03f..371641c73cf8 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -30802,6 +30802,583 @@ static const struct cipher_testvec chacha20_tv_template[] = {
},
};
+static const struct cipher_testvec xchacha20_tv_template[] = {
+ { /* from libsodium test/default/xchacha20.c */
+ .key = "\x79\xc9\x97\x98\xac\x67\x30\x0b"
+ "\xbb\x27\x04\xc9\x5c\x34\x1e\x32"
+ "\x45\xf3\xdc\xb2\x17\x61\xb9\x8e"
+ "\x52\xff\x45\xb2\x4f\x30\x4f\xc4",
+ .klen = 32,
+ .iv = "\xb3\x3f\xfd\x30\x96\x47\x9b\xcf"
+ "\xbc\x9a\xee\x49\x41\x76\x88\xa0"
+ "\xa2\x55\x4f\x8d\x95\x38\x94\x19"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00",
+ .ctext = "\xc6\xe9\x75\x81\x60\x08\x3a\xc6"
+ "\x04\xef\x90\xe7\x12\xce\x6e\x75"
+ "\xd7\x79\x75\x90\x74\x4e\x0c\xf0"
+ "\x60\xf0\x13\x73\x9c",
+ .len = 29,
+ }, { /* from libsodium test/default/xchacha20.c */
+ .key = "\x9d\x23\xbd\x41\x49\xcb\x97\x9c"
+ "\xcf\x3c\x5c\x94\xdd\x21\x7e\x98"
+ "\x08\xcb\x0e\x50\xcd\x0f\x67\x81"
+ "\x22\x35\xea\xaf\x60\x1d\x62\x32",
+ .klen = 32,
+ .iv = "\xc0\x47\x54\x82\x66\xb7\xc3\x70"
+ "\xd3\x35\x66\xa2\x42\x5c\xbf\x30"
+ "\xd8\x2d\x1e\xaf\x52\x94\x10\x9e"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00",
+ .ctext = "\xa2\x12\x09\x09\x65\x94\xde\x8c"
+ "\x56\x67\xb1\xd1\x3a\xd9\x3f\x74"
+ "\x41\x06\xd0\x54\xdf\x21\x0e\x47"
+ "\x82\xcd\x39\x6f\xec\x69\x2d\x35"
+ "\x15\xa2\x0b\xf3\x51\xee\xc0\x11"
+ "\xa9\x2c\x36\x78\x88\xbc\x46\x4c"
+ "\x32\xf0\x80\x7a\xcd\x6c\x20\x3a"
+ "\x24\x7e\x0d\xb8\x54\x14\x84\x68"
+ "\xe9\xf9\x6b\xee\x4c\xf7\x18\xd6"
+ "\x8d\x5f\x63\x7c\xbd\x5a\x37\x64"
+ "\x57\x78\x8e\x6f\xae\x90\xfc\x31"
+ "\x09\x7c\xfc",
+ .len = 91,
+ }, { /* Taken from the ChaCha20 test vectors, appended 16 random bytes
+ to nonce, and recomputed the ciphertext with libsodium */
+ .key = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .klen = 32,
+ .iv = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x67\xc6\x69\x73"
+ "\x51\xff\x4a\xec\x29\xcd\xba\xab"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .ctext = "\x9c\x49\x2a\xe7\x8a\x2f\x93\xc7"
+ "\xb3\x33\x6f\x82\x17\xd8\xc4\x1e"
+ "\xad\x80\x11\x11\x1d\x4c\x16\x18"
+ "\x07\x73\x9b\x4f\xdb\x7c\xcb\x47"
+ "\xfd\xef\x59\x74\xfa\x3f\xe5\x4c"
+ "\x9b\xd0\xea\xbc\xba\x56\xad\x32"
+ "\x03\xdc\xf8\x2b\xc1\xe1\x75\x67"
+ "\x23\x7b\xe6\xfc\xd4\x03\x86\x54",
+ .len = 64,
+ }, { /* Taken from the ChaCha20 test vectors, appended 16 random bytes
+ to nonce, and recomputed the ciphertext with libsodium */
+ .key = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x01",
+ .klen = 32,
+ .iv = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x02\xf2\xfb\xe3\x46"
+ "\x7c\xc2\x54\xf8\x1b\xe8\xe7\x8d"
+ "\x01\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x41\x6e\x79\x20\x73\x75\x62\x6d"
+ "\x69\x73\x73\x69\x6f\x6e\x20\x74"
+ "\x6f\x20\x74\x68\x65\x20\x49\x45"
+ "\x54\x46\x20\x69\x6e\x74\x65\x6e"
+ "\x64\x65\x64\x20\x62\x79\x20\x74"
+ "\x68\x65\x20\x43\x6f\x6e\x74\x72"
+ "\x69\x62\x75\x74\x6f\x72\x20\x66"
+ "\x6f\x72\x20\x70\x75\x62\x6c\x69"
+ "\x63\x61\x74\x69\x6f\x6e\x20\x61"
+ "\x73\x20\x61\x6c\x6c\x20\x6f\x72"
+ "\x20\x70\x61\x72\x74\x20\x6f\x66"
+ "\x20\x61\x6e\x20\x49\x45\x54\x46"
+ "\x20\x49\x6e\x74\x65\x72\x6e\x65"
+ "\x74\x2d\x44\x72\x61\x66\x74\x20"
+ "\x6f\x72\x20\x52\x46\x43\x20\x61"
+ "\x6e\x64\x20\x61\x6e\x79\x20\x73"
+ "\x74\x61\x74\x65\x6d\x65\x6e\x74"
+ "\x20\x6d\x61\x64\x65\x20\x77\x69"
+ "\x74\x68\x69\x6e\x20\x74\x68\x65"
+ "\x20\x63\x6f\x6e\x74\x65\x78\x74"
+ "\x20\x6f\x66\x20\x61\x6e\x20\x49"
+ "\x45\x54\x46\x20\x61\x63\x74\x69"
+ "\x76\x69\x74\x79\x20\x69\x73\x20"
+ "\x63\x6f\x6e\x73\x69\x64\x65\x72"
+ "\x65\x64\x20\x61\x6e\x20\x22\x49"
+ "\x45\x54\x46\x20\x43\x6f\x6e\x74"
+ "\x72\x69\x62\x75\x74\x69\x6f\x6e"
+ "\x22\x2e\x20\x53\x75\x63\x68\x20"
+ "\x73\x74\x61\x74\x65\x6d\x65\x6e"
+ "\x74\x73\x20\x69\x6e\x63\x6c\x75"
+ "\x64\x65\x20\x6f\x72\x61\x6c\x20"
+ "\x73\x74\x61\x74\x65\x6d\x65\x6e"
+ "\x74\x73\x20\x69\x6e\x20\x49\x45"
+ "\x54\x46\x20\x73\x65\x73\x73\x69"
+ "\x6f\x6e\x73\x2c\x20\x61\x73\x20"
+ "\x77\x65\x6c\x6c\x20\x61\x73\x20"
+ "\x77\x72\x69\x74\x74\x65\x6e\x20"
+ "\x61\x6e\x64\x20\x65\x6c\x65\x63"
+ "\x74\x72\x6f\x6e\x69\x63\x20\x63"
+ "\x6f\x6d\x6d\x75\x6e\x69\x63\x61"
+ "\x74\x69\x6f\x6e\x73\x20\x6d\x61"
+ "\x64\x65\x20\x61\x74\x20\x61\x6e"
+ "\x79\x20\x74\x69\x6d\x65\x20\x6f"
+ "\x72\x20\x70\x6c\x61\x63\x65\x2c"
+ "\x20\x77\x68\x69\x63\x68\x20\x61"
+ "\x72\x65\x20\x61\x64\x64\x72\x65"
+ "\x73\x73\x65\x64\x20\x74\x6f",
+ .ctext = "\xf9\xab\x7a\x4a\x60\xb8\x5f\xa0"
+ "\x50\xbb\x57\xce\xef\x8c\xc1\xd9"
+ "\x24\x15\xb3\x67\x5e\x7f\x01\xf6"
+ "\x1c\x22\xf6\xe5\x71\xb1\x43\x64"
+ "\x63\x05\xd5\xfc\x5c\x3d\xc0\x0e"
+ "\x23\xef\xd3\x3b\xd9\xdc\x7f\xa8"
+ "\x58\x26\xb3\xd0\xc2\xd5\x04\x3f"
+ "\x0a\x0e\x8f\x17\xe4\xcd\xf7\x2a"
+ "\xb4\x2c\x09\xe4\x47\xec\x8b\xfb"
+ "\x59\x37\x7a\xa1\xd0\x04\x7e\xaa"
+ "\xf1\x98\x5f\x24\x3d\x72\x9a\x43"
+ "\xa4\x36\x51\x92\x22\x87\xff\x26"
+ "\xce\x9d\xeb\x59\x78\x84\x5e\x74"
+ "\x97\x2e\x63\xc0\xef\x29\xf7\x8a"
+ "\xb9\xee\x35\x08\x77\x6a\x35\x9a"
+ "\x3e\xe6\x4f\x06\x03\x74\x1b\xc1"
+ "\x5b\xb3\x0b\x89\x11\x07\xd3\xb7"
+ "\x53\xd6\x25\x04\xd9\x35\xb4\x5d"
+ "\x4c\x33\x5a\xc2\x42\x4c\xe6\xa4"
+ "\x97\x6e\x0e\xd2\xb2\x8b\x2f\x7f"
+ "\x28\xe5\x9f\xac\x4b\x2e\x02\xab"
+ "\x85\xfa\xa9\x0d\x7c\x2d\x10\xe6"
+ "\x91\xab\x55\x63\xf0\xde\x3a\x94"
+ "\x25\x08\x10\x03\xc2\x68\xd1\xf4"
+ "\xaf\x7d\x9c\x99\xf7\x86\x96\x30"
+ "\x60\xfc\x0b\xe6\xa8\x80\x15\xb0"
+ "\x81\xb1\x0c\xbe\xb9\x12\x18\x25"
+ "\xe9\x0e\xb1\xe7\x23\xb2\xef\x4a"
+ "\x22\x8f\xc5\x61\x89\xd4\xe7\x0c"
+ "\x64\x36\x35\x61\xb6\x34\x60\xf7"
+ "\x7b\x61\x37\x37\x12\x10\xa2\xf6"
+ "\x7e\xdb\x7f\x39\x3f\xb6\x8e\x89"
+ "\x9e\xf3\xfe\x13\x98\xbb\x66\x5a"
+ "\xec\xea\xab\x3f\x9c\x87\xc4\x8c"
+ "\x8a\x04\x18\x49\xfc\x77\x11\x50"
+ "\x16\xe6\x71\x2b\xee\xc0\x9c\xb6"
+ "\x87\xfd\x80\xff\x0b\x1d\x73\x38"
+ "\xa4\x1d\x6f\xae\xe4\x12\xd7\x93"
+ "\x9d\xcd\x38\x26\x09\x40\x52\xcd"
+ "\x67\x01\x67\x26\xe0\x3e\x98\xa8"
+ "\xe8\x1a\x13\x41\xbb\x90\x4d\x87"
+ "\xbb\x42\x82\x39\xce\x3a\xd0\x18"
+ "\x6d\x7b\x71\x8f\xbb\x2c\x6a\xd1"
+ "\xbd\xf5\xc7\x8a\x7e\xe1\x1e\x0f"
+ "\x0d\x0d\x13\x7c\xd9\xd8\x3c\x91"
+ "\xab\xff\x1f\x12\xc3\xee\xe5\x65"
+ "\x12\x8d\x7b\x61\xe5\x1f\x98",
+ .len = 375,
+ .also_non_np = 1,
+ .np = 3,
+ .tap = { 375 - 20, 4, 16 },
+
+ }, { /* Taken from the ChaCha20 test vectors, appended 16 random bytes
+ to nonce, and recomputed the ciphertext with libsodium */
+ .key = "\x1c\x92\x40\xa5\xeb\x55\xd3\x8a"
+ "\xf3\x33\x88\x86\x04\xf6\xb5\xf0"
+ "\x47\x39\x17\xc1\x40\x2b\x80\x09"
+ "\x9d\xca\x5c\xbc\x20\x70\x75\xc0",
+ .klen = 32,
+ .iv = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x02\x76\x5a\x2e\x63"
+ "\x33\x9f\xc9\x9a\x66\x32\x0d\xb7"
+ "\x2a\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x27\x54\x77\x61\x73\x20\x62\x72"
+ "\x69\x6c\x6c\x69\x67\x2c\x20\x61"
+ "\x6e\x64\x20\x74\x68\x65\x20\x73"
+ "\x6c\x69\x74\x68\x79\x20\x74\x6f"
+ "\x76\x65\x73\x0a\x44\x69\x64\x20"
+ "\x67\x79\x72\x65\x20\x61\x6e\x64"
+ "\x20\x67\x69\x6d\x62\x6c\x65\x20"
+ "\x69\x6e\x20\x74\x68\x65\x20\x77"
+ "\x61\x62\x65\x3a\x0a\x41\x6c\x6c"
+ "\x20\x6d\x69\x6d\x73\x79\x20\x77"
+ "\x65\x72\x65\x20\x74\x68\x65\x20"
+ "\x62\x6f\x72\x6f\x67\x6f\x76\x65"
+ "\x73\x2c\x0a\x41\x6e\x64\x20\x74"
+ "\x68\x65\x20\x6d\x6f\x6d\x65\x20"
+ "\x72\x61\x74\x68\x73\x20\x6f\x75"
+ "\x74\x67\x72\x61\x62\x65\x2e",
+ .ctext = "\x95\xb9\x51\xe7\x8f\xb4\xa4\x03"
+ "\xca\x37\xcc\xde\x60\x1d\x8c\xe2"
+ "\xf1\xbb\x8a\x13\x7f\x61\x85\xcc"
+ "\xad\xf4\xf0\xdc\x86\xa6\x1e\x10"
+ "\xbc\x8e\xcb\x38\x2b\xa5\xc8\x8f"
+ "\xaa\x03\x3d\x53\x4a\x42\xb1\x33"
+ "\xfc\xd3\xef\xf0\x8e\x7e\x10\x9c"
+ "\x6f\x12\x5e\xd4\x96\xfe\x5b\x08"
+ "\xb6\x48\xf0\x14\x74\x51\x18\x7c"
+ "\x07\x92\xfc\xac\x9d\xf1\x94\xc0"
+ "\xc1\x9d\xc5\x19\x43\x1f\x1d\xbb"
+ "\x07\xf0\x1b\x14\x25\x45\xbb\xcb"
+ "\x5c\xe2\x8b\x28\xf3\xcf\x47\x29"
+ "\x27\x79\x67\x24\xa6\x87\xc2\x11"
+ "\x65\x03\xfa\x45\xf7\x9e\x53\x7a"
+ "\x99\xf1\x82\x25\x4f\x8d\x07",
+ .len = 127,
+ }, { /* Taken from the ChaCha20 test vectors, appended 16 random bytes
+ to nonce, and recomputed the ciphertext with libsodium */
+ .key = "\x1c\x92\x40\xa5\xeb\x55\xd3\x8a"
+ "\xf3\x33\x88\x86\x04\xf6\xb5\xf0"
+ "\x47\x39\x17\xc1\x40\x2b\x80\x09"
+ "\x9d\xca\x5c\xbc\x20\x70\x75\xc0",
+ .klen = 32,
+ .iv = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x01\x31\x58\xa3\x5a"
+ "\x25\x5d\x05\x17\x58\xe9\x5e\xd4"
+ "\x1c\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x49\xee\xe0\xdc\x24\x90\x40\xcd"
+ "\xc5\x40\x8f\x47\x05\xbc\xdd\x81"
+ "\x47\xc6\x8d\xe6\xb1\x8f\xd7\xcb"
+ "\x09\x0e\x6e\x22\x48\x1f\xbf\xb8"
+ "\x5c\xf7\x1e\x8a\xc1\x23\xf2\xd4"
+ "\x19\x4b\x01\x0f\x4e\xa4\x43\xce"
+ "\x01\xc6\x67\xda\x03\x91\x18\x90"
+ "\xa5\xa4\x8e\x45\x03\xb3\x2d\xac"
+ "\x74\x92\xd3\x53\x47\xc8\xdd\x25"
+ "\x53\x6c\x02\x03\x87\x0d\x11\x0c"
+ "\x58\xe3\x12\x18\xfd\x2a\x5b\x40"
+ "\x0c\x30\xf0\xb8\x3f\x43\xce\xae"
+ "\x65\x3a\x7d\x7c\xf4\x54\xaa\xcc"
+ "\x33\x97\xc3\x77\xba\xc5\x70\xde"
+ "\xd7\xd5\x13\xa5\x65\xc4\x5f\x0f"
+ "\x46\x1a\x0d\x97\xb5\xf3\xbb\x3c"
+ "\x84\x0f\x2b\xc5\xaa\xea\xf2\x6c"
+ "\xc9\xb5\x0c\xee\x15\xf3\x7d\xbe"
+ "\x9f\x7b\x5a\xa6\xae\x4f\x83\xb6"
+ "\x79\x49\x41\xf4\x58\x18\xcb\x86"
+ "\x7f\x30\x0e\xf8\x7d\x44\x36\xea"
+ "\x75\xeb\x88\x84\x40\x3c\xad\x4f"
+ "\x6f\x31\x6b\xaa\x5d\xe5\xa5\xc5"
+ "\x21\x66\xe9\xa7\xe3\xb2\x15\x88"
+ "\x78\xf6\x79\xa1\x59\x47\x12\x4e"
+ "\x9f\x9f\x64\x1a\xa0\x22\x5b\x08"
+ "\xbe\x7c\x36\xc2\x2b\x66\x33\x1b"
+ "\xdd\x60\x71\xf7\x47\x8c\x61\xc3"
+ "\xda\x8a\x78\x1e\x16\xfa\x1e\x86"
+ "\x81\xa6\x17\x2a\xa7\xb5\xc2\xe7"
+ "\xa4\xc7\x42\xf1\xcf\x6a\xca\xb4"
+ "\x45\xcf\xf3\x93\xf0\xe7\xea\xf6"
+ "\xf4\xe6\x33\x43\x84\x93\xa5\x67"
+ "\x9b\x16\x58\x58\x80\x0f\x2b\x5c"
+ "\x24\x74\x75\x7f\x95\x81\xb7\x30"
+ "\x7a\x33\xa7\xf7\x94\x87\x32\x27"
+ "\x10\x5d\x14\x4c\x43\x29\xdd\x26"
+ "\xbd\x3e\x3c\x0e\xfe\x0e\xa5\x10"
+ "\xea\x6b\x64\xfd\x73\xc6\xed\xec"
+ "\xa8\xc9\xbf\xb3\xba\x0b\x4d\x07"
+ "\x70\xfc\x16\xfd\x79\x1e\xd7\xc5"
+ "\x49\x4e\x1c\x8b\x8d\x79\x1b\xb1"
+ "\xec\xca\x60\x09\x4c\x6a\xd5\x09"
+ "\x49\x46\x00\x88\x22\x8d\xce\xea"
+ "\xb1\x17\x11\xde\x42\xd2\x23\xc1"
+ "\x72\x11\xf5\x50\x73\x04\x40\x47"
+ "\xf9\x5d\xe7\xa7\x26\xb1\x7e\xb0"
+ "\x3f\x58\xc1\x52\xab\x12\x67\x9d"
+ "\x3f\x43\x4b\x68\xd4\x9c\x68\x38"
+ "\x07\x8a\x2d\x3e\xf3\xaf\x6a\x4b"
+ "\xf9\xe5\x31\x69\x22\xf9\xa6\x69"
+ "\xc6\x9c\x96\x9a\x12\x35\x95\x1d"
+ "\x95\xd5\xdd\xbe\xbf\x93\x53\x24"
+ "\xfd\xeb\xc2\x0a\x64\xb0\x77\x00"
+ "\x6f\x88\xc4\x37\x18\x69\x7c\xd7"
+ "\x41\x92\x55\x4c\x03\xa1\x9a\x4b"
+ "\x15\xe5\xdf\x7f\x37\x33\x72\xc1"
+ "\x8b\x10\x67\xa3\x01\x57\x94\x25"
+ "\x7b\x38\x71\x7e\xdd\x1e\xcc\x73"
+ "\x55\xd2\x8e\xeb\x07\xdd\xf1\xda"
+ "\x58\xb1\x47\x90\xfe\x42\x21\x72"
+ "\xa3\x54\x7a\xa0\x40\xec\x9f\xdd"
+ "\xc6\x84\x6e\xca\xae\xe3\x68\xb4"
+ "\x9d\xe4\x78\xff\x57\xf2\xf8\x1b"
+ "\x03\xa1\x31\xd9\xde\x8d\xf5\x22"
+ "\x9c\xdd\x20\xa4\x1e\x27\xb1\x76"
+ "\x4f\x44\x55\xe2\x9b\xa1\x9c\xfe"
+ "\x54\xf7\x27\x1b\xf4\xde\x02\xf5"
+ "\x1b\x55\x48\x5c\xdc\x21\x4b\x9e"
+ "\x4b\x6e\xed\x46\x23\xdc\x65\xb2"
+ "\xcf\x79\x5f\x28\xe0\x9e\x8b\xe7"
+ "\x4c\x9d\x8a\xff\xc1\xa6\x28\xb8"
+ "\x65\x69\x8a\x45\x29\xef\x74\x85"
+ "\xde\x79\xc7\x08\xae\x30\xb0\xf4"
+ "\xa3\x1d\x51\x41\xab\xce\xcb\xf6"
+ "\xb5\xd8\x6d\xe0\x85\xe1\x98\xb3"
+ "\x43\xbb\x86\x83\x0a\xa0\xf5\xb7"
+ "\x04\x0b\xfa\x71\x1f\xb0\xf6\xd9"
+ "\x13\x00\x15\xf0\xc7\xeb\x0d\x5a"
+ "\x9f\xd7\xb9\x6c\x65\x14\x22\x45"
+ "\x6e\x45\x32\x3e\x7e\x60\x1a\x12"
+ "\x97\x82\x14\xfb\xaa\x04\x22\xfa"
+ "\xa0\xe5\x7e\x8c\x78\x02\x48\x5d"
+ "\x78\x33\x5a\x7c\xad\xdb\x29\xce"
+ "\xbb\x8b\x61\xa4\xb7\x42\xe2\xac"
+ "\x8b\x1a\xd9\x2f\x0b\x8b\x62\x21"
+ "\x83\x35\x7e\xad\x73\xc2\xb5\x6c"
+ "\x10\x26\x38\x07\xe5\xc7\x36\x80"
+ "\xe2\x23\x12\x61\xf5\x48\x4b\x2b"
+ "\xc5\xdf\x15\xd9\x87\x01\xaa\xac"
+ "\x1e\x7c\xad\x73\x78\x18\x63\xe0"
+ "\x8b\x9f\x81\xd8\x12\x6a\x28\x10"
+ "\xbe\x04\x68\x8a\x09\x7c\x1b\x1c"
+ "\x83\x66\x80\x47\x80\xe8\xfd\x35"
+ "\x1c\x97\x6f\xae\x49\x10\x66\xcc"
+ "\xc6\xd8\xcc\x3a\x84\x91\x20\x77"
+ "\x72\xe4\x24\xd2\x37\x9f\xc5\xc9"
+ "\x25\x94\x10\x5f\x40\x00\x64\x99"
+ "\xdc\xae\xd7\x21\x09\x78\x50\x15"
+ "\xac\x5f\xc6\x2c\xa2\x0b\xa9\x39"
+ "\x87\x6e\x6d\xab\xde\x08\x51\x16"
+ "\xc7\x13\xe9\xea\xed\x06\x8e\x2c"
+ "\xf8\x37\x8c\xf0\xa6\x96\x8d\x43"
+ "\xb6\x98\x37\xb2\x43\xed\xde\xdf"
+ "\x89\x1a\xe7\xeb\x9d\xa1\x7b\x0b"
+ "\x77\xb0\xe2\x75\xc0\xf1\x98\xd9"
+ "\x80\x55\xc9\x34\x91\xd1\x59\xe8"
+ "\x4b\x0f\xc1\xa9\x4b\x7a\x84\x06"
+ "\x20\xa8\x5d\xfa\xd1\xde\x70\x56"
+ "\x2f\x9e\x91\x9c\x20\xb3\x24\xd8"
+ "\x84\x3d\xe1\x8c\x7e\x62\x52\xe5"
+ "\x44\x4b\x9f\xc2\x93\x03\xea\x2b"
+ "\x59\xc5\xfa\x3f\x91\x2b\xbb\x23"
+ "\xf5\xb2\x7b\xf5\x38\xaf\xb3\xee"
+ "\x63\xdc\x7b\xd1\xff\xaa\x8b\xab"
+ "\x82\x6b\x37\x04\xeb\x74\xbe\x79"
+ "\xb9\x83\x90\xef\x20\x59\x46\xff"
+ "\xe9\x97\x3e\x2f\xee\xb6\x64\x18"
+ "\x38\x4c\x7a\x4a\xf9\x61\xe8\x9a"
+ "\xa1\xb5\x01\xa6\x47\xd3\x11\xd4"
+ "\xce\xd3\x91\x49\x88\xc7\xb8\x4d"
+ "\xb1\xb9\x07\x6d\x16\x72\xae\x46"
+ "\x5e\x03\xa1\x4b\xb6\x02\x30\xa8"
+ "\x3d\xa9\x07\x2a\x7c\x19\xe7\x62"
+ "\x87\xe3\x82\x2f\x6f\xe1\x09\xd9"
+ "\x94\x97\xea\xdd\x58\x9e\xae\x76"
+ "\x7e\x35\xe5\xb4\xda\x7e\xf4\xde"
+ "\xf7\x32\x87\xcd\x93\xbf\x11\x56"
+ "\x11\xbe\x08\x74\xe1\x69\xad\xe2"
+ "\xd7\xf8\x86\x75\x8a\x3c\xa4\xbe"
+ "\x70\xa7\x1b\xfc\x0b\x44\x2a\x76"
+ "\x35\xea\x5d\x85\x81\xaf\x85\xeb"
+ "\xa0\x1c\x61\xc2\xf7\x4f\xa5\xdc"
+ "\x02\x7f\xf6\x95\x40\x6e\x8a\x9a"
+ "\xf3\x5d\x25\x6e\x14\x3a\x22\xc9"
+ "\x37\x1c\xeb\x46\x54\x3f\xa5\x91"
+ "\xc2\xb5\x8c\xfe\x53\x08\x97\x32"
+ "\x1b\xb2\x30\x27\xfe\x25\x5d\xdc"
+ "\x08\x87\xd0\xe5\x94\x1a\xd4\xf1"
+ "\xfe\xd6\xb4\xa3\xe6\x74\x81\x3c"
+ "\x1b\xb7\x31\xa7\x22\xfd\xd4\xdd"
+ "\x20\x4e\x7c\x51\xb0\x60\x73\xb8"
+ "\x9c\xac\x91\x90\x7e\x01\xb0\xe1"
+ "\x8a\x2f\x75\x1c\x53\x2a\x98\x2a"
+ "\x06\x52\x95\x52\xb2\xe9\x25\x2e"
+ "\x4c\xe2\x5a\x00\xb2\x13\x81\x03"
+ "\x77\x66\x0d\xa5\x99\xda\x4e\x8c"
+ "\xac\xf3\x13\x53\x27\x45\xaf\x64"
+ "\x46\xdc\xea\x23\xda\x97\xd1\xab"
+ "\x7d\x6c\x30\x96\x1f\xbc\x06\x34"
+ "\x18\x0b\x5e\x21\x35\x11\x8d\x4c"
+ "\xe0\x2d\xe9\x50\x16\x74\x81\xa8"
+ "\xb4\x34\xb9\x72\x42\xa6\xcc\xbc"
+ "\xca\x34\x83\x27\x10\x5b\x68\x45"
+ "\x8f\x52\x22\x0c\x55\x3d\x29\x7c"
+ "\xe3\xc0\x66\x05\x42\x91\x5f\x58"
+ "\xfe\x4a\x62\xd9\x8c\xa9\x04\x19"
+ "\x04\xa9\x08\x4b\x57\xfc\x67\x53"
+ "\x08\x7c\xbc\x66\x8a\xb0\xb6\x9f"
+ "\x92\xd6\x41\x7c\x5b\x2a\x00\x79"
+ "\x72",
+ .ctext = "\x3a\x92\xee\x53\x31\xaf\x2b\x60"
+ "\x5f\x55\x8d\x00\x5d\xfc\x74\x97"
+ "\x28\x54\xf4\xa5\x75\xf1\x9b\x25"
+ "\x62\x1c\xc0\xe0\x13\xc8\x87\x53"
+ "\xd0\xf3\xa7\x97\x1f\x3b\x1e\xea"
+ "\xe0\xe5\x2a\xd1\xdd\xa4\x3b\x50"
+ "\x45\xa3\x0d\x7e\x1b\xc9\xa0\xad"
+ "\xb9\x2c\x54\xa6\xc7\x55\x16\xd0"
+ "\xc5\x2e\x02\x44\x35\xd0\x7e\x67"
+ "\xf2\xc4\x9b\xcd\x95\x10\xcc\x29"
+ "\x4b\xfa\x86\x87\xbe\x40\x36\xbe"
+ "\xe1\xa3\x52\x89\x55\x20\x9b\xc2"
+ "\xab\xf2\x31\x34\x16\xad\xc8\x17"
+ "\x65\x24\xc0\xff\x12\x37\xfe\x5a"
+ "\x62\x3b\x59\x47\x6c\x5f\x3a\x8e"
+ "\x3b\xd9\x30\xc8\x7f\x2f\x88\xda"
+ "\x80\xfd\x02\xda\x7f\x9a\x7a\x73"
+ "\x59\xc5\x34\x09\x9a\x11\xcb\xa7"
+ "\xfc\xf6\xa1\xa0\x60\xfb\x43\xbb"
+ "\xf1\xe9\xd7\xc6\x79\x27\x4e\xff"
+ "\x22\xb4\x24\xbf\x76\xee\x47\xb9"
+ "\x6d\x3f\x8b\xb0\x9c\x3c\x43\xdd"
+ "\xff\x25\x2e\x6d\xa4\x2b\xfb\x5d"
+ "\x1b\x97\x6c\x55\x0a\x82\x7a\x7b"
+ "\x94\x34\xc2\xdb\x2f\x1f\xc1\xea"
+ "\xd4\x4d\x17\x46\x3b\x51\x69\x09"
+ "\xe4\x99\x32\x25\xfd\x94\xaf\xfb"
+ "\x10\xf7\x4f\xdd\x0b\x3c\x8b\x41"
+ "\xb3\x6a\xb7\xd1\x33\xa8\x0c\x2f"
+ "\x62\x4c\x72\x11\xd7\x74\xe1\x3b"
+ "\x38\x43\x66\x7b\x6c\x36\x48\xe7"
+ "\xe3\xe7\x9d\xb9\x42\x73\x7a\x2a"
+ "\x89\x20\x1a\x41\x80\x03\xf7\x8f"
+ "\x61\x78\x13\xbf\xfe\x50\xf5\x04"
+ "\x52\xf9\xac\x47\xf8\x62\x4b\xb2"
+ "\x24\xa9\xbf\x64\xb0\x18\x69\xd2"
+ "\xf5\xe4\xce\xc8\xb1\x87\x75\xd6"
+ "\x2c\x24\x79\x00\x7d\x26\xfb\x44"
+ "\xe7\x45\x7a\xee\x58\xa5\x83\xc1"
+ "\xb4\x24\xab\x23\x2f\x4d\xd7\x4f"
+ "\x1c\xc7\xaa\xa9\x50\xf4\xa3\x07"
+ "\x12\x13\x89\x74\xdc\x31\x6a\xb2"
+ "\xf5\x0f\x13\x8b\xb9\xdb\x85\x1f"
+ "\xf5\xbc\x88\xd9\x95\xea\x31\x6c"
+ "\x36\x60\xb6\x49\xdc\xc4\xf7\x55"
+ "\x3f\x21\xc1\xb5\x92\x18\x5e\xbc"
+ "\x9f\x87\x7f\xe7\x79\x25\x40\x33"
+ "\xd6\xb9\x33\xd5\x50\xb3\xc7\x89"
+ "\x1b\x12\xa0\x46\xdd\xa7\xd8\x3e"
+ "\x71\xeb\x6f\x66\xa1\x26\x0c\x67"
+ "\xab\xb2\x38\x58\x17\xd8\x44\x3b"
+ "\x16\xf0\x8e\x62\x8d\x16\x10\x00"
+ "\x32\x8b\xef\xb9\x28\xd3\xc5\xad"
+ "\x0a\x19\xa2\xe4\x03\x27\x7d\x94"
+ "\x06\x18\xcd\xd6\x27\x00\xf9\x1f"
+ "\xb6\xb3\xfe\x96\x35\x5f\xc4\x1c"
+ "\x07\x62\x10\x79\x68\x50\xf1\x7e"
+ "\x29\xe7\xc4\xc4\xe7\xee\x54\xd6"
+ "\x58\x76\x84\x6d\x8d\xe4\x59\x31"
+ "\xe9\xf4\xdc\xa1\x1f\xe5\x1a\xd6"
+ "\xe6\x64\x46\xf5\x77\x9c\x60\x7a"
+ "\x5e\x62\xe3\x0a\xd4\x9f\x7a\x2d"
+ "\x7a\xa5\x0a\x7b\x29\x86\x7a\x74"
+ "\x74\x71\x6b\xca\x7d\x1d\xaa\xba"
+ "\x39\x84\x43\x76\x35\xfe\x4f\x9b"
+ "\xbb\xbb\xb5\x6a\x32\xb5\x5d\x41"
+ "\x51\xf0\x5b\x68\x03\x47\x4b\x8a"
+ "\xca\x88\xf6\x37\xbd\x73\x51\x70"
+ "\x66\xfe\x9e\x5f\x21\x9c\xf3\xdd"
+ "\xc3\xea\x27\xf9\x64\x94\xe1\x19"
+ "\xa0\xa9\xab\x60\xe0\x0e\xf7\x78"
+ "\x70\x86\xeb\xe0\xd1\x5c\x05\xd3"
+ "\xd7\xca\xe0\xc0\x47\x47\x34\xee"
+ "\x11\xa3\xa3\x54\x98\xb7\x49\x8e"
+ "\x84\x28\x70\x2c\x9e\xfb\x55\x54"
+ "\x4d\xf8\x86\xf7\x85\x7c\xbd\xf3"
+ "\x17\xd8\x47\xcb\xac\xf4\x20\x85"
+ "\x34\x66\xad\x37\x2d\x5e\x52\xda"
+ "\x8a\xfe\x98\x55\x30\xe7\x2d\x2b"
+ "\x19\x10\x8e\x7b\x66\x5e\xdc\xe0"
+ "\x45\x1f\x7b\xb4\x08\xfb\x8f\xf6"
+ "\x8c\x89\x21\x34\x55\x27\xb2\x76"
+ "\xb2\x07\xd9\xd6\x68\x9b\xea\x6b"
+ "\x2d\xb4\xc4\x35\xdd\xd2\x79\xae"
+ "\xc7\xd6\x26\x7f\x12\x01\x8c\xa7"
+ "\xe3\xdb\xa8\xf4\xf7\x2b\xec\x99"
+ "\x11\x00\xf1\x35\x8c\xcf\xd5\xc9"
+ "\xbd\x91\x36\x39\x70\xcf\x7d\x70"
+ "\x47\x1a\xfc\x6b\x56\xe0\x3f\x9c"
+ "\x60\x49\x01\x72\xa9\xaf\x2c\x9c"
+ "\xe8\xab\xda\x8c\x14\x19\xf3\x75"
+ "\x07\x17\x9d\x44\x67\x7a\x2e\xef"
+ "\xb7\x83\x35\x4a\xd1\x3d\x1c\x84"
+ "\x32\xdd\xaa\xea\xca\x1d\xdc\x72"
+ "\x2c\xcc\x43\xcd\x5d\xe3\x21\xa4"
+ "\xd0\x8a\x4b\x20\x12\xa3\xd5\x86"
+ "\x76\x96\xff\x5f\x04\x57\x0f\xe6"
+ "\xba\xe8\x76\x50\x0c\x64\x1d\x83"
+ "\x9c\x9b\x9a\x9a\x58\x97\x9c\x5c"
+ "\xb4\xa4\xa6\x3e\x19\xeb\x8f\x5a"
+ "\x61\xb2\x03\x7b\x35\x19\xbe\xa7"
+ "\x63\x0c\xfd\xdd\xf9\x90\x6c\x08"
+ "\x19\x11\xd3\x65\x4a\xf5\x96\x92"
+ "\x59\xaa\x9c\x61\x0c\x29\xa7\xf8"
+ "\x14\x39\x37\xbf\x3c\xf2\x16\x72"
+ "\x02\xfa\xa2\xf3\x18\x67\x5d\xcb"
+ "\xdc\x4d\xbb\x96\xff\x70\x08\x2d"
+ "\xc2\xa8\x52\xe1\x34\x5f\x72\xfe"
+ "\x64\xbf\xca\xa7\x74\x38\xfb\x74"
+ "\x55\x9c\xfa\x8a\xed\xfb\x98\xeb"
+ "\x58\x2e\x6c\xe1\x52\x76\x86\xd7"
+ "\xcf\xa1\xa4\xfc\xb2\x47\x41\x28"
+ "\xa3\xc1\xe5\xfd\x53\x19\x28\x2b"
+ "\x37\x04\x65\x96\x99\x7a\x28\x0f"
+ "\x07\x68\x4b\xc7\x52\x0a\x55\x35"
+ "\x40\x19\x95\x61\xe8\x59\x40\x1f"
+ "\x9d\xbf\x78\x7d\x8f\x84\xff\x6f"
+ "\xd0\xd5\x63\xd2\x22\xbd\xc8\x4e"
+ "\xfb\xe7\x9f\x06\xe6\xe7\x39\x6d"
+ "\x6a\x96\x9f\xf0\x74\x7e\xc9\x35"
+ "\xb7\x26\xb8\x1c\x0a\xa6\x27\x2c"
+ "\xa2\x2b\xfe\xbe\x0f\x07\x73\xae"
+ "\x7f\x7f\x54\xf5\x7c\x6a\x0a\x56"
+ "\x49\xd4\x81\xe5\x85\x53\x99\x1f"
+ "\x95\x05\x13\x58\x8d\x0e\x1b\x90"
+ "\xc3\x75\x48\x64\x58\x98\x67\x84"
+ "\xae\xe2\x21\xa2\x8a\x04\x0a\x0b"
+ "\x61\xaa\xb0\xd4\x28\x60\x7a\xf8"
+ "\xbc\x52\xfb\x24\x7f\xed\x0d\x2a"
+ "\x0a\xb2\xf9\xc6\x95\xb5\x11\xc9"
+ "\xf4\x0f\x26\x11\xcf\x2a\x57\x87"
+ "\x7a\xf3\xe7\x94\x65\xc2\xb5\xb3"
+ "\xab\x98\xe3\xc1\x2b\x59\x19\x7c"
+ "\xd6\xf3\xf9\xbf\xff\x6d\xc6\x82"
+ "\x13\x2f\x4a\x2e\xcd\x26\xfe\x2d"
+ "\x01\x70\xf4\xc2\x7f\x1f\x4c\xcb"
+ "\x47\x77\x0c\xa0\xa3\x03\xec\xda"
+ "\xa9\xbf\x0d\x2d\xae\xe4\xb8\x7b"
+ "\xa9\xbc\x08\xb4\x68\x2e\xc5\x60"
+ "\x8d\x87\x41\x2b\x0f\x69\xf0\xaf"
+ "\x5f\xba\x72\x20\x0f\x33\xcd\x6d"
+ "\x36\x7d\x7b\xd5\x05\xf1\x4b\x05"
+ "\xc4\xfc\x7f\x80\xb9\x4d\xbd\xf7"
+ "\x7c\x84\x07\x01\xc2\x40\x66\x5b"
+ "\x98\xc7\x2c\xe3\x97\xfa\xdf\x87"
+ "\xa0\x1f\xe9\x21\x42\x0f\x3b\xeb"
+ "\x89\x1c\x3b\xca\x83\x61\x77\x68"
+ "\x84\xbb\x60\x87\x38\x2e\x25\xd5"
+ "\x9e\x04\x41\x70\xac\xda\xc0\x9c"
+ "\x9c\x69\xea\x8d\x4e\x55\x2a\x29"
+ "\xed\x05\x4b\x7b\x73\x71\x90\x59"
+ "\x4d\xc8\xd8\x44\xf0\x4c\xe1\x5e"
+ "\x84\x47\x55\xcc\x32\x3f\xe7\x97"
+ "\x42\xc6\x32\xac\x40\xe5\xa5\xc7"
+ "\x8b\xed\xdb\xf7\x83\xd6\xb1\xc2"
+ "\x52\x5e\x34\xb7\xeb\x6e\xd9\xfc"
+ "\xe5\x93\x9a\x97\x3e\xb0\xdc\xd9"
+ "\xd7\x06\x10\xb6\x1d\x80\x59\xdd"
+ "\x0d\xfe\x64\x35\xcd\x5d\xec\xf0"
+ "\xba\xd0\x34\xc9\x2d\x91\xc5\x17"
+ "\x11",
+ .len = 1281,
+ .also_non_np = 1,
+ .np = 3,
+ .tap = { 1200, 1, 80 },
+ },
+};
+
/*
* CTS (Cipher Text Stealing) mode tests
*/
diff --git a/include/crypto/chacha20.h b/include/crypto/chacha20.h
index fbec4e6a8789..6290d997060e 100644
--- a/include/crypto/chacha20.h
+++ b/include/crypto/chacha20.h
@@ -1,6 +1,10 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
- * Common values for the ChaCha20 algorithm
+ * Common values and helper functions for the ChaCha20 and XChaCha20 algorithms.
+ *
+ * XChaCha20 extends ChaCha20's nonce to 192 bits, while provably retaining
+ * ChaCha20's security. Here they share the same key size, tfm context, and
+ * setkey function; only their IV size and encrypt/decrypt function differ.
*/
#ifndef _CRYPTO_CHACHA20_H
@@ -10,10 +14,15 @@
#include <linux/types.h>
#include <linux/crypto.h>
+/* 32-bit stream position, then 96-bit nonce (RFC7539 convention) */
#define CHACHA20_IV_SIZE 16
+
#define CHACHA20_KEY_SIZE 32
#define CHACHA20_BLOCK_SIZE 64
+/* 192-bit nonce, then 64-bit stream position */
+#define XCHACHA20_IV_SIZE 32
+
struct chacha20_ctx {
u32 key[8];
};
@@ -22,8 +31,11 @@ void chacha20_block(u32 *state, u8 *stream);
void hchacha20_block(const u32 *in, u32 *out);
void crypto_chacha20_init(u32 *state, struct chacha20_ctx *ctx, u8 *iv);
+
int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keysize);
+
int crypto_chacha20_crypt(struct skcipher_request *req);
+int crypto_xchacha20_crypt(struct skcipher_request *req);
#endif
--
2.19.1.930.g4563a0d9d0-goog
From: Eric Biggers <[email protected]>
To improve responsivesess, disable preemption for each step of the walk
(which is at most PAGE_SIZE) rather than for the entire
encryption/decryption operation.
Suggested-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Eric Biggers <[email protected]>
---
arch/arm/crypto/chacha20-neon-glue.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm/crypto/chacha20-neon-glue.c b/arch/arm/crypto/chacha20-neon-glue.c
index 7386eb1c1889..2bc035cb8f23 100644
--- a/arch/arm/crypto/chacha20-neon-glue.c
+++ b/arch/arm/crypto/chacha20-neon-glue.c
@@ -68,22 +68,22 @@ static int chacha20_neon(struct skcipher_request *req)
if (req->cryptlen <= CHACHA_BLOCK_SIZE || !may_use_simd())
return crypto_chacha_crypt(req);
- err = skcipher_walk_virt(&walk, req, true);
+ err = skcipher_walk_virt(&walk, req, false);
crypto_chacha_init(state, ctx, walk.iv);
- kernel_neon_begin();
while (walk.nbytes > 0) {
unsigned int nbytes = walk.nbytes;
if (nbytes < walk.total)
nbytes = round_down(nbytes, walk.stride);
+ kernel_neon_begin();
chacha20_doneon(state, walk.dst.virt.addr, walk.src.virt.addr,
nbytes);
+ kernel_neon_end();
err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
}
- kernel_neon_end();
return err;
}
--
2.19.1.930.g4563a0d9d0-goog
From: Eric Biggers <[email protected]>
Add an XChaCha20 implementation that is hooked up to the ARM NEON
implementation of ChaCha20. This is needed for use in the Adiantum
encryption mode; see the generic code patch,
"crypto: chacha20-generic - add XChaCha20 support", for more details.
We also update the NEON code to support HChaCha20 on one block, so we
can use that in XChaCha20 rather than calling the generic HChaCha20.
This required factoring the permutation out into its own macro.
Signed-off-by: Eric Biggers <[email protected]>
---
arch/arm/crypto/Kconfig | 2 +-
arch/arm/crypto/chacha20-neon-core.S | 70 ++++++++++++------
arch/arm/crypto/chacha20-neon-glue.c | 103 ++++++++++++++++++++-------
3 files changed, 126 insertions(+), 49 deletions(-)
diff --git a/arch/arm/crypto/Kconfig b/arch/arm/crypto/Kconfig
index ef0c7feea6e2..0aa1471f27d2 100644
--- a/arch/arm/crypto/Kconfig
+++ b/arch/arm/crypto/Kconfig
@@ -117,7 +117,7 @@ config CRYPTO_CRC32_ARM_CE
select CRYPTO_HASH
config CRYPTO_CHACHA20_NEON
- tristate "NEON accelerated ChaCha20 symmetric cipher"
+ tristate "NEON accelerated ChaCha20 stream cipher algorithms"
depends on KERNEL_MODE_NEON
select CRYPTO_BLKCIPHER
select CRYPTO_CHACHA20
diff --git a/arch/arm/crypto/chacha20-neon-core.S b/arch/arm/crypto/chacha20-neon-core.S
index 50e7b9896818..2335e5055d2b 100644
--- a/arch/arm/crypto/chacha20-neon-core.S
+++ b/arch/arm/crypto/chacha20-neon-core.S
@@ -52,27 +52,16 @@
.fpu neon
.align 5
-ENTRY(chacha20_block_xor_neon)
- // r0: Input state matrix, s
- // r1: 1 data block output, o
- // r2: 1 data block input, i
-
- //
- // This function encrypts one ChaCha20 block by loading the state matrix
- // in four NEON registers. It performs matrix operation on four words in
- // parallel, but requireds shuffling to rearrange the words after each
- // round.
- //
-
- // x0..3 = s0..3
- add ip, r0, #0x20
- vld1.32 {q0-q1}, [r0]
- vld1.32 {q2-q3}, [ip]
-
- vmov q8, q0
- vmov q9, q1
- vmov q10, q2
- vmov q11, q3
+/*
+ * chacha20_permute - permute one block
+ *
+ * Permute one 64-byte block where the state matrix is stored in the four NEON
+ * registers q0-q3. It performs matrix operations on four words in parallel,
+ * but requires shuffling to rearrange the words after each round.
+ *
+ * Clobbers: r3, ip, q4-q5
+ */
+chacha20_permute:
adr ip, .Lrol8_table
mov r3, #10
@@ -142,6 +131,27 @@ ENTRY(chacha20_block_xor_neon)
subs r3, r3, #1
bne .Ldoubleround
+ bx lr
+ENDPROC(chacha20_permute)
+
+ENTRY(chacha20_block_xor_neon)
+ // r0: Input state matrix, s
+ // r1: 1 data block output, o
+ // r2: 1 data block input, i
+ push {lr}
+
+ // x0..3 = s0..3
+ add ip, r0, #0x20
+ vld1.32 {q0-q1}, [r0]
+ vld1.32 {q2-q3}, [ip]
+
+ vmov q8, q0
+ vmov q9, q1
+ vmov q10, q2
+ vmov q11, q3
+
+ bl chacha20_permute
+
add ip, r2, #0x20
vld1.8 {q4-q5}, [r2]
vld1.8 {q6-q7}, [ip]
@@ -166,9 +176,25 @@ ENTRY(chacha20_block_xor_neon)
vst1.8 {q0-q1}, [r1]
vst1.8 {q2-q3}, [ip]
- bx lr
+ pop {pc}
ENDPROC(chacha20_block_xor_neon)
+ENTRY(hchacha20_block_neon)
+ // r0: Input state matrix, s
+ // r1: output (8 32-bit words)
+ push {lr}
+
+ vld1.32 {q0-q1}, [r0]!
+ vld1.32 {q2-q3}, [r0]
+
+ bl chacha20_permute
+
+ vst1.32 {q0}, [r1]!
+ vst1.32 {q3}, [r1]
+
+ pop {pc}
+ENDPROC(hchacha20_block_neon)
+
.align 4
.Lctrinc: .word 0, 1, 2, 3
.Lrol8_table: .byte 3, 0, 1, 2, 7, 4, 5, 6
diff --git a/arch/arm/crypto/chacha20-neon-glue.c b/arch/arm/crypto/chacha20-neon-glue.c
index 2bc035cb8f23..f2d3b0f70a8d 100644
--- a/arch/arm/crypto/chacha20-neon-glue.c
+++ b/arch/arm/crypto/chacha20-neon-glue.c
@@ -1,5 +1,5 @@
/*
- * ChaCha20 256-bit cipher algorithm, RFC7539, ARM NEON functions
+ * ChaCha20 (RFC7539) and XChaCha20 stream ciphers, NEON accelerated
*
* Copyright (C) 2016 Linaro, Ltd. <[email protected]>
*
@@ -30,6 +30,7 @@
asmlinkage void chacha20_block_xor_neon(u32 *state, u8 *dst, const u8 *src);
asmlinkage void chacha20_4block_xor_neon(u32 *state, u8 *dst, const u8 *src);
+asmlinkage void hchacha20_block_neon(const u32 *state, u32 *out);
static void chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
unsigned int bytes)
@@ -57,20 +58,16 @@ static void chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
}
}
-static int chacha20_neon(struct skcipher_request *req)
+static int chacha20_neon_stream_xor(struct skcipher_request *req,
+ struct chacha_ctx *ctx, u8 *iv)
{
- struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
- struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_walk walk;
u32 state[16];
int err;
- if (req->cryptlen <= CHACHA_BLOCK_SIZE || !may_use_simd())
- return crypto_chacha_crypt(req);
-
err = skcipher_walk_virt(&walk, req, false);
- crypto_chacha_init(state, ctx, walk.iv);
+ crypto_chacha_init(state, ctx, iv);
while (walk.nbytes > 0) {
unsigned int nbytes = walk.nbytes;
@@ -88,22 +85,73 @@ static int chacha20_neon(struct skcipher_request *req)
return err;
}
-static struct skcipher_alg alg = {
- .base.cra_name = "chacha20",
- .base.cra_driver_name = "chacha20-neon",
- .base.cra_priority = 300,
- .base.cra_blocksize = 1,
- .base.cra_ctxsize = sizeof(struct chacha_ctx),
- .base.cra_module = THIS_MODULE,
-
- .min_keysize = CHACHA_KEY_SIZE,
- .max_keysize = CHACHA_KEY_SIZE,
- .ivsize = CHACHA_IV_SIZE,
- .chunksize = CHACHA_BLOCK_SIZE,
- .walksize = 4 * CHACHA_BLOCK_SIZE,
- .setkey = crypto_chacha20_setkey,
- .encrypt = chacha20_neon,
- .decrypt = chacha20_neon,
+static int chacha20_neon(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ if (req->cryptlen <= CHACHA_BLOCK_SIZE || !may_use_simd())
+ return crypto_chacha_crypt(req);
+
+ return chacha20_neon_stream_xor(req, ctx, req->iv);
+}
+
+static int xchacha20_neon(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct chacha_ctx subctx;
+ u32 state[16];
+ u8 real_iv[16];
+
+ if (req->cryptlen <= CHACHA_BLOCK_SIZE || !may_use_simd())
+ return crypto_xchacha_crypt(req);
+
+ crypto_chacha_init(state, ctx, req->iv);
+
+ kernel_neon_begin();
+ hchacha20_block_neon(state, subctx.key);
+ kernel_neon_end();
+
+ memcpy(&real_iv[0], req->iv + 24, 8);
+ memcpy(&real_iv[8], req->iv + 16, 8);
+ return chacha20_neon_stream_xor(req, &subctx, real_iv);
+}
+
+static struct skcipher_alg algs[] = {
+ {
+ .base.cra_name = "chacha20",
+ .base.cra_driver_name = "chacha20-neon",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = CHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .walksize = 4 * CHACHA_BLOCK_SIZE,
+ .setkey = crypto_chacha20_setkey,
+ .encrypt = chacha20_neon,
+ .decrypt = chacha20_neon,
+ }, {
+ .base.cra_name = "xchacha20",
+ .base.cra_driver_name = "xchacha20-neon",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = XCHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .walksize = 4 * CHACHA_BLOCK_SIZE,
+ .setkey = crypto_chacha20_setkey,
+ .encrypt = xchacha20_neon,
+ .decrypt = xchacha20_neon,
+ }
};
static int __init chacha20_simd_mod_init(void)
@@ -111,12 +159,12 @@ static int __init chacha20_simd_mod_init(void)
if (!(elf_hwcap & HWCAP_NEON))
return -ENODEV;
- return crypto_register_skcipher(&alg);
+ return crypto_register_skciphers(algs, ARRAY_SIZE(algs));
}
static void __exit chacha20_simd_mod_fini(void)
{
- crypto_unregister_skcipher(&alg);
+ crypto_unregister_skciphers(algs, ARRAY_SIZE(algs));
}
module_init(chacha20_simd_mod_init);
@@ -125,3 +173,6 @@ module_exit(chacha20_simd_mod_fini);
MODULE_AUTHOR("Ard Biesheuvel <[email protected]>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS_CRYPTO("chacha20");
+MODULE_ALIAS_CRYPTO("chacha20-neon");
+MODULE_ALIAS_CRYPTO("xchacha20");
+MODULE_ALIAS_CRYPTO("xchacha20-neon");
--
2.19.1.930.g4563a0d9d0-goog
On Sun, Nov 18, 2018 at 02:46:30PM +0100, Jason A. Donenfeld wrote:
>
> Personally I'd prefer this be merged after Zinc, since there's work to
> be done on adjusting the 20->12 in chacha20. That's not really much of
> a reason though. But maybe we can just sidestep the ordering concern
> all together:
In response to Martin's patch-set which I merged last week, I think
here is quick way out for the zinc interface.
Going through the past zinc discussions it would appear that
everybody is quite happy with the zinc interface per se. The
most contentious areas are in fact the algorithm implementations
under zinc, as well as the conversion of the crypto API algorithms
over to using the zinc interface (e.g., you can no longer access
specific implementations).
My proposal is to merge the zinc interface as is, but to invert
how we place the algorithm implementations. IOW the implementations
should stay where they are now, with in the crypto API. However,
we will provide direct access to them for zinc without going through
the crypto API. IOW we'll just export the functions directly.
Here is a proof of concept patch to do it for chacha20-generic.
It basically replaces patch 3 in the October zinc patch series.
Actually this patch also exports the arm/x86 chacha20 functions
too so they are ready for use by zinc.
If everyone is happy with this then we can immediately add the
zinc interface and expose the existing crypto API algorithms
through it. This would allow wireguard to be merged right away.
In parallel, the discussions over replacing the implementations
underneath can carry on without stalling the whole project.
PS This patch is totally untested :)
Thanks,
diff --git a/arch/arm/crypto/chacha20-neon-glue.c b/arch/arm/crypto/chacha20-neon-glue.c
index 59a7be08e80c..1f6239ff41ae 100644
--- a/arch/arm/crypto/chacha20-neon-glue.c
+++ b/arch/arm/crypto/chacha20-neon-glue.c
@@ -31,7 +31,7 @@
asmlinkage void chacha20_block_xor_neon(u32 *state, u8 *dst, const u8 *src);
asmlinkage void chacha20_4block_xor_neon(u32 *state, u8 *dst, const u8 *src);
-static void chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
+void crypto_chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
unsigned int bytes)
{
u8 buf[CHACHA20_BLOCK_SIZE];
@@ -56,11 +56,12 @@ static void chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
memcpy(dst, buf, bytes);
}
}
+EXPORT_SYMBOL_GPL(crypto_chacha20_doneon);
static int chacha20_neon(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
- struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct crypto_chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_walk walk;
u32 state[16];
int err;
@@ -79,8 +80,8 @@ static int chacha20_neon(struct skcipher_request *req)
if (nbytes < walk.total)
nbytes = round_down(nbytes, walk.stride);
- chacha20_doneon(state, walk.dst.virt.addr, walk.src.virt.addr,
- nbytes);
+ crypto_chacha20_doneon(state, walk.dst.virt.addr,
+ walk.src.virt.addr, nbytes);
err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
}
kernel_neon_end();
@@ -93,7 +94,7 @@ static struct skcipher_alg alg = {
.base.cra_driver_name = "chacha20-neon",
.base.cra_priority = 300,
.base.cra_blocksize = 1,
- .base.cra_ctxsize = sizeof(struct chacha20_ctx),
+ .base.cra_ctxsize = sizeof(struct crypto_chacha20_ctx),
.base.cra_module = THIS_MODULE,
.min_keysize = CHACHA20_KEY_SIZE,
diff --git a/arch/x86/crypto/chacha20_glue.c b/arch/x86/crypto/chacha20_glue.c
index 9fd84fe6ec09..519bbbf8c477 100644
--- a/arch/x86/crypto/chacha20_glue.c
+++ b/arch/x86/crypto/chacha20_glue.c
@@ -39,7 +39,7 @@ static unsigned int chacha20_advance(unsigned int len, unsigned int maxblocks)
return round_up(len, CHACHA20_BLOCK_SIZE) / CHACHA20_BLOCK_SIZE;
}
-static void chacha20_dosimd(u32 *state, u8 *dst, const u8 *src,
+void crypto_chacha20_dosimd(u32 *state, u8 *dst, const u8 *src,
unsigned int bytes)
{
#ifdef CONFIG_AS_AVX2
@@ -85,11 +85,12 @@ static void chacha20_dosimd(u32 *state, u8 *dst, const u8 *src,
state[12]++;
}
}
+EXPORT_SYMBOL_GPL(crypto_chacha20_dosimd);
static int chacha20_simd(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
- struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct crypto_chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
u32 *state, state_buf[16 + 2] __aligned(8);
struct skcipher_walk walk;
int err;
@@ -112,8 +113,8 @@ static int chacha20_simd(struct skcipher_request *req)
if (nbytes < walk.total)
nbytes = round_down(nbytes, walk.stride);
- chacha20_dosimd(state, walk.dst.virt.addr, walk.src.virt.addr,
- nbytes);
+ crypto_chacha20_dosimd(state, walk.dst.virt.addr,
+ walk.src.virt.addr, nbytes);
err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
}
@@ -128,7 +129,7 @@ static struct skcipher_alg alg = {
.base.cra_driver_name = "chacha20-simd",
.base.cra_priority = 300,
.base.cra_blocksize = 1,
- .base.cra_ctxsize = sizeof(struct chacha20_ctx),
+ .base.cra_ctxsize = sizeof(struct crypto_chacha20_ctx),
.base.cra_module = THIS_MODULE,
.min_keysize = CHACHA20_KEY_SIZE,
diff --git a/crypto/chacha20_generic.c b/crypto/chacha20_generic.c
index 3ae96587caf9..405179c310b9 100644
--- a/crypto/chacha20_generic.c
+++ b/crypto/chacha20_generic.c
@@ -15,7 +15,7 @@
#include <crypto/internal/skcipher.h>
#include <linux/module.h>
-static void chacha20_docrypt(u32 *state, u8 *dst, const u8 *src,
+void crypto_chacha20_generic(u32 *state, u8 *dst, const u8 *src,
unsigned int bytes)
{
/* aligned to potentially speed up crypto_xor() */
@@ -35,8 +35,9 @@ static void chacha20_docrypt(u32 *state, u8 *dst, const u8 *src,
crypto_xor(dst, stream, bytes);
}
}
+EXPORT_SYMBOL_GPL(crypto_chacha20_generic);
-void crypto_chacha20_init(u32 *state, struct chacha20_ctx *ctx, u8 *iv)
+void crypto_chacha20_init(u32 *state, struct crypto_chacha20_ctx *ctx, u8 *iv)
{
state[0] = 0x61707865; /* "expa" */
state[1] = 0x3320646e; /* "nd 3" */
@@ -60,7 +61,7 @@ EXPORT_SYMBOL_GPL(crypto_chacha20_init);
int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keysize)
{
- struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct crypto_chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
int i;
if (keysize != CHACHA20_KEY_SIZE)
@@ -76,7 +77,7 @@ EXPORT_SYMBOL_GPL(crypto_chacha20_setkey);
int crypto_chacha20_crypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
- struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct crypto_chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_walk walk;
u32 state[16];
int err;
@@ -91,8 +92,8 @@ int crypto_chacha20_crypt(struct skcipher_request *req)
if (nbytes < walk.total)
nbytes = round_down(nbytes, walk.stride);
- chacha20_docrypt(state, walk.dst.virt.addr, walk.src.virt.addr,
- nbytes);
+ crypto_chacha20_generic(state, walk.dst.virt.addr,
+ walk.src.virt.addr, nbytes);
err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
}
@@ -105,7 +106,7 @@ static struct skcipher_alg alg = {
.base.cra_driver_name = "chacha20-generic",
.base.cra_priority = 100,
.base.cra_blocksize = 1,
- .base.cra_ctxsize = sizeof(struct chacha20_ctx),
+ .base.cra_ctxsize = sizeof(struct crypto_chacha20_ctx),
.base.cra_module = THIS_MODULE,
.min_keysize = CHACHA20_KEY_SIZE,
diff --git a/include/crypto/chacha20.h b/include/crypto/chacha20.h
index 2d3129442a52..0dd99c928123 100644
--- a/include/crypto/chacha20.h
+++ b/include/crypto/chacha20.h
@@ -15,14 +15,20 @@
#define CHACHA20_BLOCK_SIZE 64
#define CHACHAPOLY_IV_SIZE 12
-struct chacha20_ctx {
+struct crypto_chacha20_ctx {
u32 key[8];
};
void chacha20_block(u32 *state, u8 *stream);
-void crypto_chacha20_init(u32 *state, struct chacha20_ctx *ctx, u8 *iv);
+void crypto_chacha20_generic(u32 *state, u8 *dst, const u8 *src,
+ unsigned int bytes);
+void crypto_chacha20_init(u32 *state, struct crypto_chacha20_ctx *ctx, u8 *iv);
int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keysize);
int crypto_chacha20_crypt(struct skcipher_request *req);
+void crypto_chacha20_dosimd(u32 *state, u8 *dst, const u8 *src,
+ unsigned int bytes);
+void crypto_chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
+ unsigned int bytes);
#endif
diff --git a/include/zinc/chacha20.h b/include/zinc/chacha20.h
new file mode 100644
index 000000000000..0b98bd6946ae
--- /dev/null
+++ b/include/zinc/chacha20.h
@@ -0,0 +1,70 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+/*
+ * Copyright (C) 2015-2018 Jason A. Donenfeld <[email protected]>. All Rights Reserved.
+ */
+
+#ifndef _ZINC_CHACHA20_H
+#define _ZINC_CHACHA20_H
+
+#include <asm/unaligned.h>
+#include <linux/simd.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+
+enum {
+ CHACHA20_NONCE_SIZE = 16,
+ CHACHA20_KEY_SIZE = 32,
+ CHACHA20_KEY_WORDS = CHACHA20_KEY_SIZE / sizeof(u32),
+ CHACHA20_BLOCK_SIZE = 64,
+ CHACHA20_BLOCK_WORDS = CHACHA20_BLOCK_SIZE / sizeof(u32),
+ HCHACHA20_NONCE_SIZE = CHACHA20_NONCE_SIZE,
+ HCHACHA20_KEY_SIZE = CHACHA20_KEY_SIZE
+};
+
+enum { /* expand 32-byte k */
+ CHACHA20_CONSTANT_EXPA = 0x61707865U,
+ CHACHA20_CONSTANT_ND_3 = 0x3320646eU,
+ CHACHA20_CONSTANT_2_BY = 0x79622d32U,
+ CHACHA20_CONSTANT_TE_K = 0x6b206574U
+};
+
+struct chacha20_ctx {
+ union {
+ u32 state[16];
+ struct {
+ u32 constant[4];
+ u32 key[8];
+ u32 counter[4];
+ };
+ };
+};
+
+static inline void chacha20_init(struct chacha20_ctx *ctx,
+ const u8 key[CHACHA20_KEY_SIZE],
+ const u64 nonce)
+{
+ ctx->constant[0] = CHACHA20_CONSTANT_EXPA;
+ ctx->constant[1] = CHACHA20_CONSTANT_ND_3;
+ ctx->constant[2] = CHACHA20_CONSTANT_2_BY;
+ ctx->constant[3] = CHACHA20_CONSTANT_TE_K;
+ ctx->key[0] = get_unaligned_le32(key + 0);
+ ctx->key[1] = get_unaligned_le32(key + 4);
+ ctx->key[2] = get_unaligned_le32(key + 8);
+ ctx->key[3] = get_unaligned_le32(key + 12);
+ ctx->key[4] = get_unaligned_le32(key + 16);
+ ctx->key[5] = get_unaligned_le32(key + 20);
+ ctx->key[6] = get_unaligned_le32(key + 24);
+ ctx->key[7] = get_unaligned_le32(key + 28);
+ ctx->counter[0] = 0;
+ ctx->counter[1] = 0;
+ ctx->counter[2] = nonce & U32_MAX;
+ ctx->counter[3] = nonce >> 32;
+}
+void chacha20(struct chacha20_ctx *ctx, u8 *dst, const u8 *src, u32 len,
+ simd_context_t *simd_context);
+
+void hchacha20(u32 derived_key[CHACHA20_KEY_WORDS],
+ const u8 nonce[HCHACHA20_NONCE_SIZE],
+ const u8 key[HCHACHA20_KEY_SIZE], simd_context_t *simd_context);
+
+#endif /* _ZINC_CHACHA20_H */
diff --git a/lib/zinc/Kconfig b/lib/zinc/Kconfig
index 90e066ea93a0..1fffd0a1a74c 100644
--- a/lib/zinc/Kconfig
+++ b/lib/zinc/Kconfig
@@ -1,3 +1,7 @@
+config ZINC_CHACHA20
+ tristate
+ select CRYPTO_CHACHA20
+
config ZINC_SELFTEST
bool "Zinc cryptography library self-tests"
help
diff --git a/lib/zinc/Makefile b/lib/zinc/Makefile
index a61c80d676cb..3d80144d55a6 100644
--- a/lib/zinc/Makefile
+++ b/lib/zinc/Makefile
@@ -1,3 +1,6 @@
ccflags-y := -O2
ccflags-y += -D'pr_fmt(fmt)="zinc: " fmt'
ccflags-$(CONFIG_ZINC_DEBUG) += -DDEBUG
+
+zinc_chacha20-y := chacha20/chacha20.o
+obj-$(CONFIG_ZINC_CHACHA20) += zinc_chacha20.o
diff --git a/lib/zinc/chacha20/chacha20.c b/lib/zinc/chacha20/chacha20.c
new file mode 100644
index 000000000000..132850d19e39
--- /dev/null
+++ b/lib/zinc/chacha20/chacha20.c
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2015-2018 Jason A. Donenfeld <[email protected]>. All Rights Reserved.
+ *
+ * Implementation of the ChaCha20 stream cipher.
+ *
+ * Information: https://cr.yp.to/chacha.html
+ */
+
+#include <zinc/chacha20.h>
+#include "../selftest/run.h"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/vmalloc.h>
+#include <crypto/algapi.h> // For crypto_xor_cpy.
+#include <crypto/chacha20.h>
+
+static bool *const chacha20_nobs[] __initconst = { };
+static void __init chacha20_fpu_init(void)
+{
+}
+static inline bool chacha20_arch(struct chacha20_ctx *ctx, u8 *dst,
+ const u8 *src, size_t len,
+ simd_context_t *simd_context)
+{
+ return false;
+}
+static inline bool hchacha20_arch(u32 derived_key[CHACHA20_KEY_WORDS],
+ const u8 nonce[HCHACHA20_NONCE_SIZE],
+ const u8 key[HCHACHA20_KEY_SIZE],
+ simd_context_t *simd_context)
+{
+ return false;
+}
+
+void chacha20(struct chacha20_ctx *ctx, u8 *dst, const u8 *src, u32 len,
+ simd_context_t *simd_context)
+{
+ if (!chacha20_arch(ctx, dst, src, len, simd_context))
+ crypto_chacha20_generic(ctx->state, dst, src, len);
+}
+EXPORT_SYMBOL(chacha20);
+
+static void hchacha20_generic(u32 derived_key[CHACHA20_KEY_WORDS],
+ const u8 nonce[HCHACHA20_NONCE_SIZE],
+ const u8 key[HCHACHA20_KEY_SIZE])
+{
+ u32 x[] = { CHACHA20_CONSTANT_EXPA,
+ CHACHA20_CONSTANT_ND_3,
+ CHACHA20_CONSTANT_2_BY,
+ CHACHA20_CONSTANT_TE_K,
+ get_unaligned_le32(key + 0),
+ get_unaligned_le32(key + 4),
+ get_unaligned_le32(key + 8),
+ get_unaligned_le32(key + 12),
+ get_unaligned_le32(key + 16),
+ get_unaligned_le32(key + 20),
+ get_unaligned_le32(key + 24),
+ get_unaligned_le32(key + 28),
+ get_unaligned_le32(nonce + 0),
+ get_unaligned_le32(nonce + 4),
+ get_unaligned_le32(nonce + 8),
+ get_unaligned_le32(nonce + 12)
+ };
+ u8 tmp[64];
+
+ chacha20_block(x, tmp);
+
+ memcpy(derived_key + 0, tmp + 0, sizeof(u32) * 4);
+ memcpy(derived_key + 4, tmp + 48, sizeof(u32) * 4);
+}
+
+/* Derived key should be 32-bit aligned */
+void hchacha20(u32 derived_key[CHACHA20_KEY_WORDS],
+ const u8 nonce[HCHACHA20_NONCE_SIZE],
+ const u8 key[HCHACHA20_KEY_SIZE], simd_context_t *simd_context)
+{
+ if (!hchacha20_arch(derived_key, nonce, key, simd_context))
+ hchacha20_generic(derived_key, nonce, key);
+}
+EXPORT_SYMBOL(hchacha20);
+
+#include "../selftest/chacha20.c"
+
+static bool nosimd __initdata = false;
+
+static int __init mod_init(void)
+{
+ if (!nosimd)
+ chacha20_fpu_init();
+ if (!selftest_run("chacha20", chacha20_selftest, chacha20_nobs,
+ ARRAY_SIZE(chacha20_nobs)))
+ return -ENOTRECOVERABLE;
+ return 0;
+}
+
+static void __exit mod_exit(void)
+{
+}
+
+module_param(nosimd, bool, 0);
+module_init(mod_init);
+module_exit(mod_exit);
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("ChaCha20 stream cipher");
+MODULE_AUTHOR("Jason A. Donenfeld <[email protected]>");
diff --git a/lib/zinc/selftest/chacha20.c b/lib/zinc/selftest/chacha20.c
new file mode 100644
index 000000000000..b8c9c709071d
--- /dev/null
+++ b/lib/zinc/selftest/chacha20.c
@@ -0,0 +1,2698 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2015-2018 Jason A. Donenfeld <[email protected]>. All Rights Reserved.
+ */
+
+struct chacha20_testvec {
+ const u8 *input, *output, *key;
+ u64 nonce;
+ size_t ilen;
+};
+
+struct hchacha20_testvec {
+ u8 key[HCHACHA20_KEY_SIZE];
+ u8 nonce[HCHACHA20_NONCE_SIZE];
+ u8 output[CHACHA20_KEY_SIZE];
+};
+
+/* These test vectors are generated by reference implementations and are
+ * designed to check chacha20 implementation block handling, as well as from
+ * the draft-arciszewski-xchacha-01 document.
+ */
+
+static const u8 input01[] __initconst = { };
+static const u8 output01[] __initconst = { };
+static const u8 key01[] __initconst = {
+ 0x09, 0xf4, 0xe8, 0x57, 0x10, 0xf2, 0x12, 0xc3,
+ 0xc6, 0x91, 0xc4, 0x09, 0x97, 0x46, 0xef, 0xfe,
+ 0x02, 0x00, 0xe4, 0x5c, 0x82, 0xed, 0x16, 0xf3,
+ 0x32, 0xbe, 0xec, 0x7a, 0xe6, 0x68, 0x12, 0x26
+};
+enum { nonce01 = 0x3834e2afca3c66d3ULL };
+
+static const u8 input02[] __initconst = {
+ 0x9d
+};
+static const u8 output02[] __initconst = {
+ 0x94
+};
+static const u8 key02[] __initconst = {
+ 0x8c, 0x01, 0xac, 0xaf, 0x62, 0x63, 0x56, 0x7a,
+ 0xad, 0x23, 0x4c, 0x58, 0x29, 0x29, 0xbe, 0xab,
+ 0xe9, 0xf8, 0xdf, 0x6c, 0x8c, 0x74, 0x4d, 0x7d,
+ 0x13, 0x94, 0x10, 0x02, 0x3d, 0x8e, 0x9f, 0x94
+};
+enum { nonce02 = 0x5d1b3bfdedd9f73aULL };
+
+static const u8 input03[] __initconst = {
+ 0x04, 0x16
+};
+static const u8 output03[] __initconst = {
+ 0x92, 0x07
+};
+static const u8 key03[] __initconst = {
+ 0x22, 0x0c, 0x79, 0x2c, 0x38, 0x51, 0xbe, 0x99,
+ 0xa9, 0x59, 0x24, 0x50, 0xef, 0x87, 0x38, 0xa6,
+ 0xa0, 0x97, 0x20, 0xcb, 0xb4, 0x0c, 0x94, 0x67,
+ 0x1f, 0x98, 0xdc, 0xc4, 0x83, 0xbc, 0x35, 0x4d
+};
+enum { nonce03 = 0x7a3353ad720a3e2eULL };
+
+static const u8 input04[] __initconst = {
+ 0xc7, 0xcc, 0xd0
+};
+static const u8 output04[] __initconst = {
+ 0xd8, 0x41, 0x80
+};
+static const u8 key04[] __initconst = {
+ 0x81, 0x5e, 0x12, 0x01, 0xc4, 0x36, 0x15, 0x03,
+ 0x11, 0xa0, 0xe9, 0x86, 0xbb, 0x5a, 0xdc, 0x45,
+ 0x7d, 0x5e, 0x98, 0xf8, 0x06, 0x76, 0x1c, 0xec,
+ 0xc0, 0xf7, 0xca, 0x4e, 0x99, 0xd9, 0x42, 0x38
+};
+enum { nonce04 = 0x6816e2fc66176da2ULL };
+
+static const u8 input05[] __initconst = {
+ 0x48, 0xf1, 0x31, 0x5f
+};
+static const u8 output05[] __initconst = {
+ 0x48, 0xf7, 0x13, 0x67
+};
+static const u8 key05[] __initconst = {
+ 0x3f, 0xd6, 0xb6, 0x5e, 0x2f, 0xda, 0x82, 0x39,
+ 0x97, 0x06, 0xd3, 0x62, 0x4f, 0xbd, 0xcb, 0x9b,
+ 0x1d, 0xe6, 0x4a, 0x76, 0xab, 0xdd, 0x14, 0x50,
+ 0x59, 0x21, 0xe3, 0xb2, 0xc7, 0x95, 0xbc, 0x45
+};
+enum { nonce05 = 0xc41a7490e228cc42ULL };
+
+static const u8 input06[] __initconst = {
+ 0xae, 0xa2, 0x85, 0x1d, 0xc8
+};
+static const u8 output06[] __initconst = {
+ 0xfa, 0xff, 0x45, 0x6b, 0x6f
+};
+static const u8 key06[] __initconst = {
+ 0x04, 0x8d, 0xea, 0x67, 0x20, 0x78, 0xfb, 0x8f,
+ 0x49, 0x80, 0x35, 0xb5, 0x7b, 0xe4, 0x31, 0x74,
+ 0x57, 0x43, 0x3a, 0x64, 0x64, 0xb9, 0xe6, 0x23,
+ 0x4d, 0xfe, 0xb8, 0x7b, 0x71, 0x4d, 0x9d, 0x21
+};
+enum { nonce06 = 0x251366db50b10903ULL };
+
+static const u8 input07[] __initconst = {
+ 0x1a, 0x32, 0x85, 0xb6, 0xe8, 0x52
+};
+static const u8 output07[] __initconst = {
+ 0xd3, 0x5f, 0xf0, 0x07, 0x69, 0xec
+};
+static const u8 key07[] __initconst = {
+ 0xbf, 0x2d, 0x42, 0x99, 0x97, 0x76, 0x04, 0xad,
+ 0xd3, 0x8f, 0x6e, 0x6a, 0x34, 0x85, 0xaf, 0x81,
+ 0xef, 0x36, 0x33, 0xd5, 0x43, 0xa2, 0xaa, 0x08,
+ 0x0f, 0x77, 0x42, 0x83, 0x58, 0xc5, 0x42, 0x2a
+};
+enum { nonce07 = 0xe0796da17dba9b58ULL };
+
+static const u8 input08[] __initconst = {
+ 0x40, 0xae, 0xcd, 0xe4, 0x3d, 0x22, 0xe0
+};
+static const u8 output08[] __initconst = {
+ 0xfd, 0x8a, 0x9f, 0x3d, 0x05, 0xc9, 0xd3
+};
+static const u8 key08[] __initconst = {
+ 0xdc, 0x3f, 0x41, 0xe3, 0x23, 0x2a, 0x8d, 0xf6,
+ 0x41, 0x2a, 0xa7, 0x66, 0x05, 0x68, 0xe4, 0x7b,
+ 0xc4, 0x58, 0xd6, 0xcc, 0xdf, 0x0d, 0xc6, 0x25,
+ 0x1b, 0x61, 0x32, 0x12, 0x4e, 0xf1, 0xe6, 0x29
+};
+enum { nonce08 = 0xb1d2536d9e159832ULL };
+
+static const u8 input09[] __initconst = {
+ 0xba, 0x1d, 0x14, 0x16, 0x9f, 0x83, 0x67, 0x24
+};
+static const u8 output09[] __initconst = {
+ 0x7c, 0xe3, 0x78, 0x1d, 0xa2, 0xe7, 0xe9, 0x39
+};
+static const u8 key09[] __initconst = {
+ 0x17, 0x55, 0x90, 0x52, 0xa4, 0xce, 0x12, 0xae,
+ 0xd4, 0xfd, 0xd4, 0xfb, 0xd5, 0x18, 0x59, 0x50,
+ 0x4e, 0x51, 0x99, 0x32, 0x09, 0x31, 0xfc, 0xf7,
+ 0x27, 0x10, 0x8e, 0xa2, 0x4b, 0xa5, 0xf5, 0x62
+};
+enum { nonce09 = 0x495fc269536d003ULL };
+
+static const u8 input10[] __initconst = {
+ 0x09, 0xfd, 0x3c, 0x0b, 0x3d, 0x0e, 0xf3, 0x9d,
+ 0x27
+};
+static const u8 output10[] __initconst = {
+ 0xdc, 0xe4, 0x33, 0x60, 0x0c, 0x07, 0xcb, 0x51,
+ 0x6b
+};
+static const u8 key10[] __initconst = {
+ 0x4e, 0x00, 0x72, 0x37, 0x0f, 0x52, 0x4d, 0x6f,
+ 0x37, 0x50, 0x3c, 0xb3, 0x51, 0x81, 0x49, 0x16,
+ 0x7e, 0xfd, 0xb1, 0x51, 0x72, 0x2e, 0xe4, 0x16,
+ 0x68, 0x5c, 0x5b, 0x8a, 0xc3, 0x90, 0x70, 0x04
+};
+enum { nonce10 = 0x1ad9d1114d88cbbdULL };
+
+static const u8 input11[] __initconst = {
+ 0x70, 0x18, 0x52, 0x85, 0xba, 0x66, 0xff, 0x2c,
+ 0x9a, 0x46
+};
+static const u8 output11[] __initconst = {
+ 0xf5, 0x2a, 0x7a, 0xfd, 0x31, 0x7c, 0x91, 0x41,
+ 0xb1, 0xcf
+};
+static const u8 key11[] __initconst = {
+ 0x48, 0xb4, 0xd0, 0x7c, 0x88, 0xd1, 0x96, 0x0d,
+ 0x80, 0x33, 0xb4, 0xd5, 0x31, 0x9a, 0x88, 0xca,
+ 0x14, 0xdc, 0xf0, 0xa8, 0xf3, 0xac, 0xb8, 0x47,
+ 0x75, 0x86, 0x7c, 0x88, 0x50, 0x11, 0x43, 0x40
+};
+enum { nonce11 = 0x47c35dd1f4f8aa4fULL };
+
+static const u8 input12[] __initconst = {
+ 0x9e, 0x8e, 0x3d, 0x2a, 0x05, 0xfd, 0xe4, 0x90,
+ 0x24, 0x1c, 0xd3
+};
+static const u8 output12[] __initconst = {
+ 0x97, 0x72, 0x40, 0x9f, 0xc0, 0x6b, 0x05, 0x33,
+ 0x42, 0x7e, 0x28
+};
+static const u8 key12[] __initconst = {
+ 0xee, 0xff, 0x33, 0x33, 0xe0, 0x28, 0xdf, 0xa2,
+ 0xb6, 0x5e, 0x25, 0x09, 0x52, 0xde, 0xa5, 0x9c,
+ 0x8f, 0x95, 0xa9, 0x03, 0x77, 0x0f, 0xbe, 0xa1,
+ 0xd0, 0x7d, 0x73, 0x2f, 0xf8, 0x7e, 0x51, 0x44
+};
+enum { nonce12 = 0xc22d044dc6ea4af3ULL };
+
+static const u8 input13[] __initconst = {
+ 0x9c, 0x16, 0xa2, 0x22, 0x4d, 0xbe, 0x04, 0x9a,
+ 0xb3, 0xb5, 0xc6, 0x58
+};
+static const u8 output13[] __initconst = {
+ 0xf0, 0x81, 0xdb, 0x6d, 0xa3, 0xe9, 0xb2, 0xc6,
+ 0x32, 0x50, 0x16, 0x9f
+};
+static const u8 key13[] __initconst = {
+ 0x96, 0xb3, 0x01, 0xd2, 0x7a, 0x8c, 0x94, 0x09,
+ 0x4f, 0x58, 0xbe, 0x80, 0xcc, 0xa9, 0x7e, 0x2d,
+ 0xad, 0x58, 0x3b, 0x63, 0xb8, 0x5c, 0x17, 0xce,
+ 0xbf, 0x43, 0x33, 0x7a, 0x7b, 0x82, 0x28, 0x2f
+};
+enum { nonce13 = 0x2a5d05d88cd7b0daULL };
+
+static const u8 input14[] __initconst = {
+ 0x57, 0x4f, 0xaa, 0x30, 0xe6, 0x23, 0x50, 0x86,
+ 0x91, 0xa5, 0x60, 0x96, 0x2b
+};
+static const u8 output14[] __initconst = {
+ 0x6c, 0x1f, 0x3b, 0x42, 0xb6, 0x2f, 0xf0, 0xbd,
+ 0x76, 0x60, 0xc7, 0x7e, 0x8d
+};
+static const u8 key14[] __initconst = {
+ 0x22, 0x85, 0xaf, 0x8f, 0xa3, 0x53, 0xa0, 0xc4,
+ 0xb5, 0x75, 0xc0, 0xba, 0x30, 0x92, 0xc3, 0x32,
+ 0x20, 0x5a, 0x8f, 0x7e, 0x93, 0xda, 0x65, 0x18,
+ 0xd1, 0xf6, 0x9a, 0x9b, 0x8f, 0x85, 0x30, 0xe6
+};
+enum { nonce14 = 0xf9946c166aa4475fULL };
+
+static const u8 input15[] __initconst = {
+ 0x89, 0x81, 0xc7, 0xe2, 0x00, 0xac, 0x52, 0x70,
+ 0xa4, 0x79, 0xab, 0xeb, 0x74, 0xf7
+};
+static const u8 output15[] __initconst = {
+ 0xb4, 0xd0, 0xa9, 0x9d, 0x15, 0x5f, 0x48, 0xd6,
+ 0x00, 0x7e, 0x4c, 0x77, 0x5a, 0x46
+};
+static const u8 key15[] __initconst = {
+ 0x0a, 0x66, 0x36, 0xca, 0x5d, 0x82, 0x23, 0xb6,
+ 0xe4, 0x9b, 0xad, 0x5e, 0xd0, 0x7f, 0xf6, 0x7a,
+ 0x7b, 0x03, 0xa7, 0x4c, 0xfd, 0xec, 0xd5, 0xa1,
+ 0xfc, 0x25, 0x54, 0xda, 0x5a, 0x5c, 0xf0, 0x2c
+};
+enum { nonce15 = 0x9ab2b87a35e772c8ULL };
+
+static const u8 input16[] __initconst = {
+ 0x5f, 0x09, 0xc0, 0x8b, 0x1e, 0xde, 0xca, 0xd9,
+ 0xb7, 0x5c, 0x23, 0xc9, 0x55, 0x1e, 0xcf
+};
+static const u8 output16[] __initconst = {
+ 0x76, 0x9b, 0x53, 0xf3, 0x66, 0x88, 0x28, 0x60,
+ 0x98, 0x80, 0x2c, 0xa8, 0x80, 0xa6, 0x48
+};
+static const u8 key16[] __initconst = {
+ 0x80, 0xb5, 0x51, 0xdf, 0x17, 0x5b, 0xb0, 0xef,
+ 0x8b, 0x5b, 0x2e, 0x3e, 0xc5, 0xe3, 0xa5, 0x86,
+ 0xac, 0x0d, 0x8e, 0x32, 0x90, 0x9d, 0x82, 0x27,
+ 0xf1, 0x23, 0x26, 0xc3, 0xea, 0x55, 0xb6, 0x63
+};
+enum { nonce16 = 0xa82e9d39e4d02ef5ULL };
+
+static const u8 input17[] __initconst = {
+ 0x87, 0x0b, 0x36, 0x71, 0x7c, 0xb9, 0x0b, 0x80,
+ 0x4d, 0x77, 0x5c, 0x4f, 0xf5, 0x51, 0x0e, 0x1a
+};
+static const u8 output17[] __initconst = {
+ 0xf1, 0x12, 0x4a, 0x8a, 0xd9, 0xd0, 0x08, 0x67,
+ 0x66, 0xd7, 0x34, 0xea, 0x32, 0x3b, 0x54, 0x0e
+};
+static const u8 key17[] __initconst = {
+ 0xfb, 0x71, 0x5f, 0x3f, 0x7a, 0xc0, 0x9a, 0xc8,
+ 0xc8, 0xcf, 0xe8, 0xbc, 0xfb, 0x09, 0xbf, 0x89,
+ 0x6a, 0xef, 0xd5, 0xe5, 0x36, 0x87, 0x14, 0x76,
+ 0x00, 0xb9, 0x32, 0x28, 0xb2, 0x00, 0x42, 0x53
+};
+enum { nonce17 = 0x229b87e73d557b96ULL };
+
+static const u8 input18[] __initconst = {
+ 0x38, 0x42, 0xb5, 0x37, 0xb4, 0x3d, 0xfe, 0x59,
+ 0x38, 0x68, 0x88, 0xfa, 0x89, 0x8a, 0x5f, 0x90,
+ 0x3c
+};
+static const u8 output18[] __initconst = {
+ 0xac, 0xad, 0x14, 0xe8, 0x7e, 0xd7, 0xce, 0x96,
+ 0x3d, 0xb3, 0x78, 0x85, 0x22, 0x5a, 0xcb, 0x39,
+ 0xd4
+};
+static const u8 key18[] __initconst = {
+ 0xe1, 0xc1, 0xa8, 0xe0, 0x91, 0xe7, 0x38, 0x66,
+ 0x80, 0x17, 0x12, 0x3c, 0x5e, 0x2d, 0xbb, 0xea,
+ 0xeb, 0x6c, 0x8b, 0xc8, 0x1b, 0x6f, 0x7c, 0xea,
+ 0x50, 0x57, 0x23, 0x1e, 0x65, 0x6f, 0x6d, 0x81
+};
+enum { nonce18 = 0xfaf5fcf8f30e57a9ULL };
+
+static const u8 input19[] __initconst = {
+ 0x1c, 0x4a, 0x30, 0x26, 0xef, 0x9a, 0x32, 0xa7,
+ 0x8f, 0xe5, 0xc0, 0x0f, 0x30, 0x3a, 0xbf, 0x38,
+ 0x54, 0xba
+};
+static const u8 output19[] __initconst = {
+ 0x57, 0x67, 0x54, 0x4f, 0x31, 0xd6, 0xef, 0x35,
+ 0x0b, 0xd9, 0x52, 0xa7, 0x46, 0x7d, 0x12, 0x17,
+ 0x1e, 0xe3
+};
+static const u8 key19[] __initconst = {
+ 0x5a, 0x79, 0xc1, 0xea, 0x33, 0xb3, 0xc7, 0x21,
+ 0xec, 0xf8, 0xcb, 0xd2, 0x58, 0x96, 0x23, 0xd6,
+ 0x4d, 0xed, 0x2f, 0xdf, 0x8a, 0x79, 0xe6, 0x8b,
+ 0x38, 0xa3, 0xc3, 0x7a, 0x33, 0xda, 0x02, 0xc7
+};
+enum { nonce19 = 0x2b23b61840429604ULL };
+
+static const u8 input20[] __initconst = {
+ 0xab, 0xe9, 0x32, 0xbb, 0x35, 0x17, 0xe0, 0x60,
+ 0x80, 0xb1, 0x27, 0xdc, 0xe6, 0x62, 0x9e, 0x0c,
+ 0x77, 0xf4, 0x50
+};
+static const u8 output20[] __initconst = {
+ 0x54, 0x6d, 0xaa, 0xfc, 0x08, 0xfb, 0x71, 0xa8,
+ 0xd6, 0x1d, 0x7d, 0xf3, 0x45, 0x10, 0xb5, 0x4c,
+ 0xcc, 0x4b, 0x45
+};
+static const u8 key20[] __initconst = {
+ 0xa3, 0xfd, 0x3d, 0xa9, 0xeb, 0xea, 0x2c, 0x69,
+ 0xcf, 0x59, 0x38, 0x13, 0x5b, 0xa7, 0x53, 0x8f,
+ 0x5e, 0xa2, 0x33, 0x86, 0x4c, 0x75, 0x26, 0xaf,
+ 0x35, 0x12, 0x09, 0x71, 0x81, 0xea, 0x88, 0x66
+};
+enum { nonce20 = 0x7459667a8fadff58ULL };
+
+static const u8 input21[] __initconst = {
+ 0xa6, 0x82, 0x21, 0x23, 0xad, 0x27, 0x3f, 0xc6,
+ 0xd7, 0x16, 0x0d, 0x6d, 0x24, 0x15, 0x54, 0xc5,
+ 0x96, 0x72, 0x59, 0x8a
+};
+static const u8 output21[] __initconst = {
+ 0x5f, 0x34, 0x32, 0xea, 0x06, 0xd4, 0x9e, 0x01,
+ 0xdc, 0x32, 0x32, 0x40, 0x66, 0x73, 0x6d, 0x4a,
+ 0x6b, 0x12, 0x20, 0xe8
+};
+static const u8 key21[] __initconst = {
+ 0x96, 0xfd, 0x13, 0x23, 0xa9, 0x89, 0x04, 0xe6,
+ 0x31, 0xa5, 0x2c, 0xc1, 0x40, 0xd5, 0x69, 0x5c,
+ 0x32, 0x79, 0x56, 0xe0, 0x29, 0x93, 0x8f, 0xe8,
+ 0x5f, 0x65, 0x53, 0x7f, 0xc1, 0xe9, 0xaf, 0xaf
+};
+enum { nonce21 = 0xba8defee9d8e13b5ULL };
+
+static const u8 input22[] __initconst = {
+ 0xb8, 0x32, 0x1a, 0x81, 0xd8, 0x38, 0x89, 0x5a,
+ 0xb0, 0x05, 0xbe, 0xf4, 0xd2, 0x08, 0xc6, 0xee,
+ 0x79, 0x7b, 0x3a, 0x76, 0x59
+};
+static const u8 output22[] __initconst = {
+ 0xb7, 0xba, 0xae, 0x80, 0xe4, 0x9f, 0x79, 0x84,
+ 0x5a, 0x48, 0x50, 0x6d, 0xcb, 0xd0, 0x06, 0x0c,
+ 0x15, 0x63, 0xa7, 0x5e, 0xbd
+};
+static const u8 key22[] __initconst = {
+ 0x0f, 0x35, 0x3d, 0xeb, 0x5f, 0x0a, 0x82, 0x0d,
+ 0x24, 0x59, 0x71, 0xd8, 0xe6, 0x2d, 0x5f, 0xe1,
+ 0x7e, 0x0c, 0xae, 0xf6, 0xdc, 0x2c, 0xc5, 0x4a,
+ 0x38, 0x88, 0xf2, 0xde, 0xd9, 0x5f, 0x76, 0x7c
+};
+enum { nonce22 = 0xe77f1760e9f5e192ULL };
+
+static const u8 input23[] __initconst = {
+ 0x4b, 0x1e, 0x79, 0x99, 0xcf, 0xef, 0x64, 0x4b,
+ 0xb0, 0x66, 0xae, 0x99, 0x2e, 0x68, 0x97, 0xf5,
+ 0x5d, 0x9b, 0x3f, 0x7a, 0xa9, 0xd9
+};
+static const u8 output23[] __initconst = {
+ 0x5f, 0xa4, 0x08, 0x39, 0xca, 0xfa, 0x2b, 0x83,
+ 0x5d, 0x95, 0x70, 0x7c, 0x2e, 0xd4, 0xae, 0xfa,
+ 0x45, 0x4a, 0x77, 0x7f, 0xa7, 0x65
+};
+static const u8 key23[] __initconst = {
+ 0x4a, 0x06, 0x83, 0x64, 0xaa, 0xe3, 0x38, 0x32,
+ 0x28, 0x5d, 0xa4, 0xb2, 0x5a, 0xee, 0xcf, 0x8e,
+ 0x19, 0x67, 0xf1, 0x09, 0xe8, 0xc9, 0xf6, 0x40,
+ 0x02, 0x6d, 0x0b, 0xde, 0xfa, 0x81, 0x03, 0xb1
+};
+enum { nonce23 = 0x9b3f349158709849ULL };
+
+static const u8 input24[] __initconst = {
+ 0xc6, 0xfc, 0x47, 0x5e, 0xd8, 0xed, 0xa9, 0xe5,
+ 0x4f, 0x82, 0x79, 0x35, 0xee, 0x3e, 0x7e, 0x3e,
+ 0x35, 0x70, 0x6e, 0xfa, 0x6d, 0x08, 0xe8
+};
+static const u8 output24[] __initconst = {
+ 0x3b, 0xc5, 0xf8, 0xc2, 0xbf, 0x2b, 0x90, 0x33,
+ 0xa6, 0xae, 0xf5, 0x5a, 0x65, 0xb3, 0x3d, 0xe1,
+ 0xcd, 0x5f, 0x55, 0xfa, 0xe7, 0xa5, 0x4a
+};
+static const u8 key24[] __initconst = {
+ 0x00, 0x24, 0xc3, 0x65, 0x5f, 0xe6, 0x31, 0xbb,
+ 0x6d, 0xfc, 0x20, 0x7b, 0x1b, 0xa8, 0x96, 0x26,
+ 0x55, 0x21, 0x62, 0x25, 0x7e, 0xba, 0x23, 0x97,
+ 0xc9, 0xb8, 0x53, 0xa8, 0xef, 0xab, 0xad, 0x61
+};
+enum { nonce24 = 0x13ee0b8f526177c3ULL };
+
+static const u8 input25[] __initconst = {
+ 0x33, 0x07, 0x16, 0xb1, 0x34, 0x33, 0x67, 0x04,
+ 0x9b, 0x0a, 0xce, 0x1b, 0xe9, 0xde, 0x1a, 0xec,
+ 0xd0, 0x55, 0xfb, 0xc6, 0x33, 0xaf, 0x2d, 0xe3
+};
+static const u8 output25[] __initconst = {
+ 0x05, 0x93, 0x10, 0xd1, 0x58, 0x6f, 0x68, 0x62,
+ 0x45, 0xdb, 0x91, 0xae, 0x70, 0xcf, 0xd4, 0x5f,
+ 0xee, 0xdf, 0xd5, 0xba, 0x9e, 0xde, 0x68, 0xe6
+};
+static const u8 key25[] __initconst = {
+ 0x83, 0xa9, 0x4f, 0x5d, 0x74, 0xd5, 0x91, 0xb3,
+ 0xc9, 0x97, 0x19, 0x15, 0xdb, 0x0d, 0x0b, 0x4a,
+ 0x3d, 0x55, 0xcf, 0xab, 0xb2, 0x05, 0x21, 0x35,
+ 0x45, 0x50, 0xeb, 0xf8, 0xf5, 0xbf, 0x36, 0x35
+};
+enum { nonce25 = 0x7c6f459e49ebfebcULL };
+
+static const u8 input26[] __initconst = {
+ 0xc2, 0xd4, 0x7a, 0xa3, 0x92, 0xe1, 0xac, 0x46,
+ 0x1a, 0x15, 0x38, 0xc9, 0xb5, 0xfd, 0xdf, 0x84,
+ 0x38, 0xbc, 0x6b, 0x1d, 0xb0, 0x83, 0x43, 0x04,
+ 0x39
+};
+static const u8 output26[] __initconst = {
+ 0x7f, 0xde, 0xd6, 0x87, 0xcc, 0x34, 0xf4, 0x12,
+ 0xae, 0x55, 0xa5, 0x89, 0x95, 0x29, 0xfc, 0x18,
+ 0xd8, 0xc7, 0x7c, 0xd3, 0xcb, 0x85, 0x95, 0x21,
+ 0xd2
+};
+static const u8 key26[] __initconst = {
+ 0xe4, 0xd0, 0x54, 0x1d, 0x7d, 0x47, 0xa8, 0xc1,
+ 0x08, 0xca, 0xe2, 0x42, 0x52, 0x95, 0x16, 0x43,
+ 0xa3, 0x01, 0x23, 0x03, 0xcc, 0x3b, 0x81, 0x78,
+ 0x23, 0xcc, 0xa7, 0x36, 0xd7, 0xa0, 0x97, 0x8d
+};
+enum { nonce26 = 0x524401012231683ULL };
+
+static const u8 input27[] __initconst = {
+ 0x0d, 0xb0, 0xcf, 0xec, 0xfc, 0x38, 0x9d, 0x9d,
+ 0x89, 0x00, 0x96, 0xf2, 0x79, 0x8a, 0xa1, 0x8d,
+ 0x32, 0x5e, 0xc6, 0x12, 0x22, 0xec, 0xf6, 0x52,
+ 0xc1, 0x0b
+};
+static const u8 output27[] __initconst = {
+ 0xef, 0xe1, 0xf2, 0x67, 0x8e, 0x2c, 0x00, 0x9f,
+ 0x1d, 0x4c, 0x66, 0x1f, 0x94, 0x58, 0xdc, 0xbb,
+ 0xb9, 0x11, 0x8f, 0x74, 0xfd, 0x0e, 0x14, 0x01,
+ 0xa8, 0x21
+};
+static const u8 key27[] __initconst = {
+ 0x78, 0x71, 0xa4, 0xe6, 0xb2, 0x95, 0x44, 0x12,
+ 0x81, 0xaa, 0x7e, 0x94, 0xa7, 0x8d, 0x44, 0xea,
+ 0xc4, 0xbc, 0x01, 0xb7, 0x9e, 0xf7, 0x82, 0x9e,
+ 0x3b, 0x23, 0x9f, 0x31, 0xdd, 0xb8, 0x0d, 0x18
+};
+enum { nonce27 = 0xd58fe0e58fb254d6ULL };
+
+static const u8 input28[] __initconst = {
+ 0xaa, 0xb7, 0xaa, 0xd9, 0xa8, 0x91, 0xd7, 0x8a,
+ 0x97, 0x9b, 0xdb, 0x7c, 0x47, 0x2b, 0xdb, 0xd2,
+ 0xda, 0x77, 0xb1, 0xfa, 0x2d, 0x12, 0xe3, 0xe9,
+ 0xc4, 0x7f, 0x54
+};
+static const u8 output28[] __initconst = {
+ 0x87, 0x84, 0xa9, 0xa6, 0xad, 0x8f, 0xe6, 0x0f,
+ 0x69, 0xf8, 0x21, 0xc3, 0x54, 0x95, 0x0f, 0xb0,
+ 0x4e, 0xc7, 0x02, 0xe4, 0x04, 0xb0, 0x6c, 0x42,
+ 0x8c, 0x63, 0xe3
+};
+static const u8 key28[] __initconst = {
+ 0x12, 0x23, 0x37, 0x95, 0x04, 0xb4, 0x21, 0xe8,
+ 0xbc, 0x65, 0x46, 0x7a, 0xf4, 0x01, 0x05, 0x3f,
+ 0xb1, 0x34, 0x73, 0xd2, 0x49, 0xbf, 0x6f, 0x20,
+ 0xbd, 0x23, 0x58, 0x5f, 0xd1, 0x73, 0x57, 0xa6
+};
+enum { nonce28 = 0x3a04d51491eb4e07ULL };
+
+static const u8 input29[] __initconst = {
+ 0x55, 0xd0, 0xd4, 0x4b, 0x17, 0xc8, 0xc4, 0x2b,
+ 0xc0, 0x28, 0xbd, 0x9d, 0x65, 0x4d, 0xaf, 0x77,
+ 0x72, 0x7c, 0x36, 0x68, 0xa7, 0xb6, 0x87, 0x4d,
+ 0xb9, 0x27, 0x25, 0x6c
+};
+static const u8 output29[] __initconst = {
+ 0x0e, 0xac, 0x4c, 0xf5, 0x12, 0xb5, 0x56, 0xa5,
+ 0x00, 0x9a, 0xd6, 0xe5, 0x1a, 0x59, 0x2c, 0xf6,
+ 0x42, 0x22, 0xcf, 0x23, 0x98, 0x34, 0x29, 0xac,
+ 0x6e, 0xe3, 0x37, 0x6d
+};
+static const u8 key29[] __initconst = {
+ 0xda, 0x9d, 0x05, 0x0c, 0x0c, 0xba, 0x75, 0xb9,
+ 0x9e, 0xb1, 0x8d, 0xd9, 0x73, 0x26, 0x2c, 0xa9,
+ 0x3a, 0xb5, 0xcb, 0x19, 0x49, 0xa7, 0x4f, 0xf7,
+ 0x64, 0x35, 0x23, 0x20, 0x2a, 0x45, 0x78, 0xc7
+};
+enum { nonce29 = 0xc25ac9982431cbfULL };
+
+static const u8 input30[] __initconst = {
+ 0x4e, 0xd6, 0x85, 0xbb, 0xe7, 0x99, 0xfa, 0x04,
+ 0x33, 0x24, 0xfd, 0x75, 0x18, 0xe3, 0xd3, 0x25,
+ 0xcd, 0xca, 0xae, 0x00, 0xbe, 0x52, 0x56, 0x4a,
+ 0x31, 0xe9, 0x4f, 0xae, 0x8a
+};
+static const u8 output30[] __initconst = {
+ 0x30, 0x36, 0x32, 0xa2, 0x3c, 0xb6, 0xf9, 0xf9,
+ 0x76, 0x70, 0xad, 0xa6, 0x10, 0x41, 0x00, 0x4a,
+ 0xfa, 0xce, 0x1b, 0x86, 0x05, 0xdb, 0x77, 0x96,
+ 0xb3, 0xb7, 0x8f, 0x61, 0x24
+};
+static const u8 key30[] __initconst = {
+ 0x49, 0x35, 0x4c, 0x15, 0x98, 0xfb, 0xc6, 0x57,
+ 0x62, 0x6d, 0x06, 0xc3, 0xd4, 0x79, 0x20, 0x96,
+ 0x05, 0x2a, 0x31, 0x63, 0xc0, 0x44, 0x42, 0x09,
+ 0x13, 0x13, 0xff, 0x1b, 0xc8, 0x63, 0x1f, 0x0b
+};
+enum { nonce30 = 0x4967f9c08e41568bULL };
+
+static const u8 input31[] __initconst = {
+ 0x91, 0x04, 0x20, 0x47, 0x59, 0xee, 0xa6, 0x0f,
+ 0x04, 0x75, 0xc8, 0x18, 0x95, 0x44, 0x01, 0x28,
+ 0x20, 0x6f, 0x73, 0x68, 0x66, 0xb5, 0x03, 0xb3,
+ 0x58, 0x27, 0x6e, 0x7a, 0x76, 0xb8
+};
+static const u8 output31[] __initconst = {
+ 0xe8, 0x03, 0x78, 0x9d, 0x13, 0x15, 0x98, 0xef,
+ 0x64, 0x68, 0x12, 0x41, 0xb0, 0x29, 0x94, 0x0c,
+ 0x83, 0x35, 0x46, 0xa9, 0x74, 0xe1, 0x75, 0xf0,
+ 0xb6, 0x96, 0xc3, 0x6f, 0xd7, 0x70
+};
+static const u8 key31[] __initconst = {
+ 0xef, 0xcd, 0x5a, 0x4a, 0xf4, 0x7e, 0x6a, 0x3a,
+ 0x11, 0x88, 0x72, 0x94, 0xb8, 0xae, 0x84, 0xc3,
+ 0x66, 0xe0, 0xde, 0x4b, 0x00, 0xa5, 0xd6, 0x2d,
+ 0x50, 0xb7, 0x28, 0xff, 0x76, 0x57, 0x18, 0x1f
+};
+enum { nonce31 = 0xcb6f428fa4192e19ULL };
+
+static const u8 input32[] __initconst = {
+ 0x90, 0x06, 0x50, 0x4b, 0x98, 0x14, 0x30, 0xf1,
+ 0xb8, 0xd7, 0xf0, 0xa4, 0x3e, 0x4e, 0xd8, 0x00,
+ 0xea, 0xdb, 0x4f, 0x93, 0x05, 0xef, 0x02, 0x71,
+ 0x1a, 0xcd, 0xa3, 0xb1, 0xae, 0xd3, 0x18
+};
+static const u8 output32[] __initconst = {
+ 0xcb, 0x4a, 0x37, 0x3f, 0xea, 0x40, 0xab, 0x86,
+ 0xfe, 0xcc, 0x07, 0xd5, 0xdc, 0xb2, 0x25, 0xb6,
+ 0xfd, 0x2a, 0x72, 0xbc, 0x5e, 0xd4, 0x75, 0xff,
+ 0x71, 0xfc, 0xce, 0x1e, 0x6f, 0x22, 0xc1
+};
+static const u8 key32[] __initconst = {
+ 0xfc, 0x6d, 0xc3, 0x80, 0xce, 0xa4, 0x31, 0xa1,
+ 0xcc, 0xfa, 0x9d, 0x10, 0x0b, 0xc9, 0x11, 0x77,
+ 0x34, 0xdb, 0xad, 0x1b, 0xc4, 0xfc, 0xeb, 0x79,
+ 0x91, 0xda, 0x59, 0x3b, 0x0d, 0xb1, 0x19, 0x3b
+};
+enum { nonce32 = 0x88551bf050059467ULL };
+
+static const u8 input33[] __initconst = {
+ 0x88, 0x94, 0x71, 0x92, 0xe8, 0xd7, 0xf9, 0xbd,
+ 0x55, 0xe3, 0x22, 0xdb, 0x99, 0x51, 0xfb, 0x50,
+ 0xbf, 0x82, 0xb5, 0x70, 0x8b, 0x2b, 0x6a, 0x03,
+ 0x37, 0xa0, 0xc6, 0x19, 0x5d, 0xc9, 0xbc, 0xcc
+};
+static const u8 output33[] __initconst = {
+ 0xb6, 0x17, 0x51, 0xc8, 0xea, 0x8a, 0x14, 0xdc,
+ 0x23, 0x1b, 0xd4, 0xed, 0xbf, 0x50, 0xb9, 0x38,
+ 0x00, 0xc2, 0x3f, 0x78, 0x3d, 0xbf, 0xa0, 0x84,
+ 0xef, 0x45, 0xb2, 0x7d, 0x48, 0x7b, 0x62, 0xa7
+};
+static const u8 key33[] __initconst = {
+ 0xb9, 0x8f, 0x6a, 0xad, 0xb4, 0x6f, 0xb5, 0xdc,
+ 0x48, 0xfa, 0x43, 0x57, 0x62, 0x97, 0xef, 0x89,
+ 0x4c, 0x5a, 0x7b, 0x67, 0xb8, 0x9d, 0xf0, 0x42,
+ 0x2b, 0x8f, 0xf3, 0x18, 0x05, 0x2e, 0x48, 0xd0
+};
+enum { nonce33 = 0x31f16488fe8447f5ULL };
+
+static const u8 input34[] __initconst = {
+ 0xda, 0x2b, 0x3d, 0x63, 0x9e, 0x4f, 0xc2, 0xb8,
+ 0x7f, 0xc2, 0x1a, 0x8b, 0x0d, 0x95, 0x65, 0x55,
+ 0x52, 0xba, 0x51, 0x51, 0xc0, 0x61, 0x9f, 0x0a,
+ 0x5d, 0xb0, 0x59, 0x8c, 0x64, 0x6a, 0xab, 0xf5,
+ 0x57
+};
+static const u8 output34[] __initconst = {
+ 0x5c, 0xf6, 0x62, 0x24, 0x8c, 0x45, 0xa3, 0x26,
+ 0xd0, 0xe4, 0x88, 0x1c, 0xed, 0xc4, 0x26, 0x58,
+ 0xb5, 0x5d, 0x92, 0xc4, 0x17, 0x44, 0x1c, 0xb8,
+ 0x2c, 0xf3, 0x55, 0x7e, 0xd6, 0xe5, 0xb3, 0x65,
+ 0xa8
+};
+static const u8 key34[] __initconst = {
+ 0xde, 0xd1, 0x27, 0xb7, 0x7c, 0xfa, 0xa6, 0x78,
+ 0x39, 0x80, 0xdf, 0xb7, 0x46, 0xac, 0x71, 0x26,
+ 0xd0, 0x2a, 0x56, 0x79, 0x12, 0xeb, 0x26, 0x37,
+ 0x01, 0x0d, 0x30, 0xe0, 0xe3, 0x66, 0xb2, 0xf4
+};
+enum { nonce34 = 0x92d0d9b252c24149ULL };
+
+static const u8 input35[] __initconst = {
+ 0x3a, 0x15, 0x5b, 0x75, 0x6e, 0xd0, 0x52, 0x20,
+ 0x6c, 0x82, 0xfa, 0xce, 0x5b, 0xea, 0xf5, 0x43,
+ 0xc1, 0x81, 0x7c, 0xb2, 0xac, 0x16, 0x3f, 0xd3,
+ 0x5a, 0xaf, 0x55, 0x98, 0xf4, 0xc6, 0xba, 0x71,
+ 0x25, 0x8b
+};
+static const u8 output35[] __initconst = {
+ 0xb3, 0xaf, 0xac, 0x6d, 0x4d, 0xc7, 0x68, 0x56,
+ 0x50, 0x5b, 0x69, 0x2a, 0xe5, 0x90, 0xf9, 0x5f,
+ 0x99, 0x88, 0xff, 0x0c, 0xa6, 0xb1, 0x83, 0xd6,
+ 0x80, 0xa6, 0x1b, 0xde, 0x94, 0xa4, 0x2c, 0xc3,
+ 0x74, 0xfa
+};
+static const u8 key35[] __initconst = {
+ 0xd8, 0x24, 0xe2, 0x06, 0xd7, 0x7a, 0xce, 0x81,
+ 0x52, 0x72, 0x02, 0x69, 0x89, 0xc4, 0xe9, 0x53,
+ 0x3b, 0x08, 0x5f, 0x98, 0x1e, 0x1b, 0x99, 0x6e,
+ 0x28, 0x17, 0x6d, 0xba, 0xc0, 0x96, 0xf9, 0x3c
+};
+enum { nonce35 = 0x7baf968c4c8e3a37ULL };
+
+static const u8 input36[] __initconst = {
+ 0x31, 0x5d, 0x4f, 0xe3, 0xac, 0xad, 0x17, 0xa6,
+ 0xb5, 0x01, 0xe2, 0xc6, 0xd4, 0x7e, 0xc4, 0x80,
+ 0xc0, 0x59, 0x72, 0xbb, 0x4b, 0x74, 0x6a, 0x41,
+ 0x0f, 0x9c, 0xf6, 0xca, 0x20, 0xb3, 0x73, 0x07,
+ 0x6b, 0x02, 0x2a
+};
+static const u8 output36[] __initconst = {
+ 0xf9, 0x09, 0x92, 0x94, 0x7e, 0x31, 0xf7, 0x53,
+ 0xe8, 0x8a, 0x5b, 0x20, 0xef, 0x9b, 0x45, 0x81,
+ 0xba, 0x5e, 0x45, 0x63, 0xc1, 0xc7, 0x9e, 0x06,
+ 0x0e, 0xd9, 0x62, 0x8e, 0x96, 0xf9, 0xfa, 0x43,
+ 0x4d, 0xd4, 0x28
+};
+static const u8 key36[] __initconst = {
+ 0x13, 0x30, 0x4c, 0x06, 0xae, 0x18, 0xde, 0x03,
+ 0x1d, 0x02, 0x40, 0xf5, 0xbb, 0x19, 0xe3, 0x88,
+ 0x41, 0xb1, 0x29, 0x15, 0x97, 0xc2, 0x69, 0x3f,
+ 0x32, 0x2a, 0x0c, 0x8b, 0xcf, 0x83, 0x8b, 0x6c
+};
+enum { nonce36 = 0x226d251d475075a0ULL };
+
+static const u8 input37[] __initconst = {
+ 0x10, 0x18, 0xbe, 0xfd, 0x66, 0xc9, 0x77, 0xcc,
+ 0x43, 0xe5, 0x46, 0x0b, 0x08, 0x8b, 0xae, 0x11,
+ 0x86, 0x15, 0xc2, 0xf6, 0x45, 0xd4, 0x5f, 0xd6,
+ 0xb6, 0x5f, 0x9f, 0x3e, 0x97, 0xb7, 0xd4, 0xad,
+ 0x0b, 0xe8, 0x31, 0x94
+};
+static const u8 output37[] __initconst = {
+ 0x03, 0x2c, 0x1c, 0xee, 0xc6, 0xdd, 0xed, 0x38,
+ 0x80, 0x6d, 0x84, 0x16, 0xc3, 0xc2, 0x04, 0x63,
+ 0xcd, 0xa7, 0x6e, 0x36, 0x8b, 0xed, 0x78, 0x63,
+ 0x95, 0xfc, 0x69, 0x7a, 0x3f, 0x8d, 0x75, 0x6b,
+ 0x6c, 0x26, 0x56, 0x4d
+};
+static const u8 key37[] __initconst = {
+ 0xac, 0x84, 0x4d, 0xa9, 0x29, 0x49, 0x3c, 0x39,
+ 0x7f, 0xd9, 0xa6, 0x01, 0xf3, 0x7e, 0xfa, 0x4a,
+ 0x14, 0x80, 0x22, 0x74, 0xf0, 0x29, 0x30, 0x2d,
+ 0x07, 0x21, 0xda, 0xc0, 0x4d, 0x70, 0x56, 0xa2
+};
+enum { nonce37 = 0x167823ce3b64925aULL };
+
+static const u8 input38[] __initconst = {
+ 0x30, 0x8f, 0xfa, 0x24, 0x29, 0xb1, 0xfb, 0xce,
+ 0x31, 0x62, 0xdc, 0xd0, 0x46, 0xab, 0xe1, 0x31,
+ 0xd9, 0xae, 0x60, 0x0d, 0xca, 0x0a, 0x49, 0x12,
+ 0x3d, 0x92, 0xe9, 0x91, 0x67, 0x12, 0x62, 0x18,
+ 0x89, 0xe2, 0xf9, 0x1c, 0xcc
+};
+static const u8 output38[] __initconst = {
+ 0x56, 0x9c, 0xc8, 0x7a, 0xc5, 0x98, 0xa3, 0x0f,
+ 0xba, 0xd5, 0x3e, 0xe1, 0xc9, 0x33, 0x64, 0x33,
+ 0xf0, 0xd5, 0xf7, 0x43, 0x66, 0x0e, 0x08, 0x9a,
+ 0x6e, 0x09, 0xe4, 0x01, 0x0d, 0x1e, 0x2f, 0x4b,
+ 0xed, 0x9c, 0x08, 0x8c, 0x03
+};
+static const u8 key38[] __initconst = {
+ 0x77, 0x52, 0x2a, 0x23, 0xf1, 0xc5, 0x96, 0x2b,
+ 0x89, 0x4f, 0x3e, 0xf3, 0xff, 0x0e, 0x94, 0xce,
+ 0xf1, 0xbd, 0x53, 0xf5, 0x77, 0xd6, 0x9e, 0x47,
+ 0x49, 0x3d, 0x16, 0x64, 0xff, 0x95, 0x42, 0x42
+};
+enum { nonce38 = 0xff629d7b82cef357ULL };
+
+static const u8 input39[] __initconst = {
+ 0x38, 0x26, 0x27, 0xd0, 0xc2, 0xf5, 0x34, 0xba,
+ 0xda, 0x0f, 0x1c, 0x1c, 0x9a, 0x70, 0xe5, 0x8a,
+ 0x78, 0x2d, 0x8f, 0x9a, 0xbf, 0x89, 0x6a, 0xfd,
+ 0xd4, 0x9c, 0x33, 0xf1, 0xb6, 0x89, 0x16, 0xe3,
+ 0x6a, 0x00, 0xfa, 0x3a, 0x0f, 0x26
+};
+static const u8 output39[] __initconst = {
+ 0x0f, 0xaf, 0x91, 0x6d, 0x9c, 0x99, 0xa4, 0xf7,
+ 0x3b, 0x9d, 0x9a, 0x98, 0xca, 0xbb, 0x50, 0x48,
+ 0xee, 0xcb, 0x5d, 0xa1, 0x37, 0x2d, 0x36, 0x09,
+ 0x2a, 0xe2, 0x1c, 0x3d, 0x98, 0x40, 0x1c, 0x16,
+ 0x56, 0xa7, 0x98, 0xe9, 0x7d, 0x2b
+};
+static const u8 key39[] __initconst = {
+ 0x6e, 0x83, 0x15, 0x4d, 0xf8, 0x78, 0xa8, 0x0e,
+ 0x71, 0x37, 0xd4, 0x6e, 0x28, 0x5c, 0x06, 0xa1,
+ 0x2d, 0x6c, 0x72, 0x7a, 0xfd, 0xf8, 0x65, 0x1a,
+ 0xb8, 0xe6, 0x29, 0x7b, 0xe5, 0xb3, 0x23, 0x79
+};
+enum { nonce39 = 0xa4d8c491cf093e9dULL };
+
+static const u8 input40[] __initconst = {
+ 0x8f, 0x32, 0x7c, 0x40, 0x37, 0x95, 0x08, 0x00,
+ 0x00, 0xfe, 0x2f, 0x95, 0x20, 0x12, 0x40, 0x18,
+ 0x5e, 0x7e, 0x5e, 0x99, 0xee, 0x8d, 0x91, 0x7d,
+ 0x50, 0x7d, 0x21, 0x45, 0x27, 0xe1, 0x7f, 0xd4,
+ 0x73, 0x10, 0xe1, 0x33, 0xbc, 0xf8, 0xdd
+};
+static const u8 output40[] __initconst = {
+ 0x78, 0x7c, 0xdc, 0x55, 0x2b, 0xd9, 0x2b, 0x3a,
+ 0xdd, 0x56, 0x11, 0x52, 0xd3, 0x2e, 0xe0, 0x0d,
+ 0x23, 0x20, 0x8a, 0xf1, 0x4f, 0xee, 0xf1, 0x68,
+ 0xf6, 0xdc, 0x53, 0xcf, 0x17, 0xd4, 0xf0, 0x6c,
+ 0xdc, 0x80, 0x5f, 0x1c, 0xa4, 0x91, 0x05
+};
+static const u8 key40[] __initconst = {
+ 0x0d, 0x86, 0xbf, 0x8a, 0xba, 0x9e, 0x39, 0x91,
+ 0xa8, 0xe7, 0x22, 0xf0, 0x0c, 0x43, 0x18, 0xe4,
+ 0x1f, 0xb0, 0xaf, 0x8a, 0x34, 0x31, 0xf4, 0x41,
+ 0xf0, 0x89, 0x85, 0xca, 0x5d, 0x05, 0x3b, 0x94
+};
+enum { nonce40 = 0xae7acc4f5986439eULL };
+
+static const u8 input41[] __initconst = {
+ 0x20, 0x5f, 0xc1, 0x83, 0x36, 0x02, 0x76, 0x96,
+ 0xf0, 0xbf, 0x8e, 0x0e, 0x1a, 0xd1, 0xc7, 0x88,
+ 0x18, 0xc7, 0x09, 0xc4, 0x15, 0xd9, 0x4f, 0x5e,
+ 0x1f, 0xb3, 0xb4, 0x6d, 0xcb, 0xa0, 0xd6, 0x8a,
+ 0x3b, 0x40, 0x8e, 0x80, 0xf1, 0xe8, 0x8f, 0x5f
+};
+static const u8 output41[] __initconst = {
+ 0x0b, 0xd1, 0x49, 0x9a, 0x9d, 0xe8, 0x97, 0xb8,
+ 0xd1, 0xeb, 0x90, 0x62, 0x37, 0xd2, 0x99, 0x15,
+ 0x67, 0x6d, 0x27, 0x93, 0xce, 0x37, 0x65, 0xa2,
+ 0x94, 0x88, 0xd6, 0x17, 0xbc, 0x1c, 0x6e, 0xa2,
+ 0xcc, 0xfb, 0x81, 0x0e, 0x30, 0x60, 0x5a, 0x6f
+};
+static const u8 key41[] __initconst = {
+ 0x36, 0x27, 0x57, 0x01, 0x21, 0x68, 0x97, 0xc7,
+ 0x00, 0x67, 0x7b, 0xe9, 0x0f, 0x55, 0x49, 0xbb,
+ 0x92, 0x18, 0x98, 0xf5, 0x5e, 0xbc, 0xe7, 0x5a,
+ 0x9d, 0x3d, 0xc7, 0xbd, 0x59, 0xec, 0x82, 0x8e
+};
+enum { nonce41 = 0x5da05e4c8dfab464ULL };
+
+static const u8 input42[] __initconst = {
+ 0xca, 0x30, 0xcd, 0x63, 0xf0, 0x2d, 0xf1, 0x03,
+ 0x4d, 0x0d, 0xf2, 0xf7, 0x6f, 0xae, 0xd6, 0x34,
+ 0xea, 0xf6, 0x13, 0xcf, 0x1c, 0xa0, 0xd0, 0xe8,
+ 0xa4, 0x78, 0x80, 0x3b, 0x1e, 0xa5, 0x32, 0x4c,
+ 0x73, 0x12, 0xd4, 0x6a, 0x94, 0xbc, 0xba, 0x80,
+ 0x5e
+};
+static const u8 output42[] __initconst = {
+ 0xec, 0x3f, 0x18, 0x31, 0xc0, 0x7b, 0xb5, 0xe2,
+ 0xad, 0xf3, 0xec, 0xa0, 0x16, 0x9d, 0xef, 0xce,
+ 0x05, 0x65, 0x59, 0x9d, 0x5a, 0xca, 0x3e, 0x13,
+ 0xb9, 0x5d, 0x5d, 0xb5, 0xeb, 0xae, 0xc0, 0x87,
+ 0xbb, 0xfd, 0xe7, 0xe4, 0x89, 0x5b, 0xd2, 0x6c,
+ 0x56
+};
+static const u8 key42[] __initconst = {
+ 0x7c, 0x6b, 0x7e, 0x77, 0xcc, 0x8c, 0x1b, 0x03,
+ 0x8b, 0x2a, 0xb3, 0x7c, 0x5a, 0x73, 0xcc, 0xac,
+ 0xdd, 0x53, 0x54, 0x0c, 0x85, 0xed, 0xcd, 0x47,
+ 0x24, 0xc1, 0xb8, 0x9b, 0x2e, 0x41, 0x92, 0x36
+};
+enum { nonce42 = 0xe4d7348b09682c9cULL };
+
+static const u8 input43[] __initconst = {
+ 0x52, 0xf2, 0x4b, 0x7c, 0xe5, 0x58, 0xe8, 0xd2,
+ 0xb7, 0xf3, 0xa1, 0x29, 0x68, 0xa2, 0x50, 0x50,
+ 0xae, 0x9c, 0x1b, 0xe2, 0x67, 0x77, 0xe2, 0xdb,
+ 0x85, 0x55, 0x7e, 0x84, 0x8a, 0x12, 0x3c, 0xb6,
+ 0x2e, 0xed, 0xd3, 0xec, 0x47, 0x68, 0xfa, 0x52,
+ 0x46, 0x9d
+};
+static const u8 output43[] __initconst = {
+ 0x1b, 0xf0, 0x05, 0xe4, 0x1c, 0xd8, 0x74, 0x9a,
+ 0xf0, 0xee, 0x00, 0x54, 0xce, 0x02, 0x83, 0x15,
+ 0xfb, 0x23, 0x35, 0x78, 0xc3, 0xda, 0x98, 0xd8,
+ 0x9d, 0x1b, 0xb2, 0x51, 0x82, 0xb0, 0xff, 0xbe,
+ 0x05, 0xa9, 0xa4, 0x04, 0xba, 0xea, 0x4b, 0x73,
+ 0x47, 0x6e
+};
+static const u8 key43[] __initconst = {
+ 0xeb, 0xec, 0x0e, 0xa1, 0x65, 0xe2, 0x99, 0x46,
+ 0xd8, 0x54, 0x8c, 0x4a, 0x93, 0xdf, 0x6d, 0xbf,
+ 0x93, 0x34, 0x94, 0x57, 0xc9, 0x12, 0x9d, 0x68,
+ 0x05, 0xc5, 0x05, 0xad, 0x5a, 0xc9, 0x2a, 0x3b
+};
+enum { nonce43 = 0xe14f6a902b7827fULL };
+
+static const u8 input44[] __initconst = {
+ 0x3e, 0x22, 0x3e, 0x8e, 0xcd, 0x18, 0xe2, 0xa3,
+ 0x8d, 0x8b, 0x38, 0xc3, 0x02, 0xa3, 0x31, 0x48,
+ 0xc6, 0x0e, 0xec, 0x99, 0x51, 0x11, 0x6d, 0x8b,
+ 0x32, 0x35, 0x3b, 0x08, 0x58, 0x76, 0x25, 0x30,
+ 0xe2, 0xfc, 0xa2, 0x46, 0x7d, 0x6e, 0x34, 0x87,
+ 0xac, 0x42, 0xbf
+};
+static const u8 output44[] __initconst = {
+ 0x08, 0x92, 0x58, 0x02, 0x1a, 0xf4, 0x1f, 0x3d,
+ 0x38, 0x7b, 0x6b, 0xf6, 0x84, 0x07, 0xa3, 0x19,
+ 0x17, 0x2a, 0xed, 0x57, 0x1c, 0xf9, 0x55, 0x37,
+ 0x4e, 0xf4, 0x68, 0x68, 0x82, 0x02, 0x4f, 0xca,
+ 0x21, 0x00, 0xc6, 0x66, 0x79, 0x53, 0x19, 0xef,
+ 0x7f, 0xdd, 0x74
+};
+static const u8 key44[] __initconst = {
+ 0x73, 0xb6, 0x3e, 0xf4, 0x57, 0x52, 0xa6, 0x43,
+ 0x51, 0xd8, 0x25, 0x00, 0xdb, 0xb4, 0x52, 0x69,
+ 0xd6, 0x27, 0x49, 0xeb, 0x9b, 0xf1, 0x7b, 0xa0,
+ 0xd6, 0x7c, 0x9c, 0xd8, 0x95, 0x03, 0x69, 0x26
+};
+enum { nonce44 = 0xf5e6dc4f35ce24e5ULL };
+
+static const u8 input45[] __initconst = {
+ 0x55, 0x76, 0xc0, 0xf1, 0x74, 0x03, 0x7a, 0x6d,
+ 0x14, 0xd8, 0x36, 0x2c, 0x9f, 0x9a, 0x59, 0x7a,
+ 0x2a, 0xf5, 0x77, 0x84, 0x70, 0x7c, 0x1d, 0x04,
+ 0x90, 0x45, 0xa4, 0xc1, 0x5e, 0xdd, 0x2e, 0x07,
+ 0x18, 0x34, 0xa6, 0x85, 0x56, 0x4f, 0x09, 0xaf,
+ 0x2f, 0x83, 0xe1, 0xc6
+};
+static const u8 output45[] __initconst = {
+ 0x22, 0x46, 0xe4, 0x0b, 0x3a, 0x55, 0xcc, 0x9b,
+ 0xf0, 0xc0, 0x53, 0xcd, 0x95, 0xc7, 0x57, 0x6c,
+ 0x77, 0x46, 0x41, 0x72, 0x07, 0xbf, 0xa8, 0xe5,
+ 0x68, 0x69, 0xd8, 0x1e, 0x45, 0xc1, 0xa2, 0x50,
+ 0xa5, 0xd1, 0x62, 0xc9, 0x5a, 0x7d, 0x08, 0x14,
+ 0xae, 0x44, 0x16, 0xb9
+};
+static const u8 key45[] __initconst = {
+ 0x41, 0xf3, 0x88, 0xb2, 0x51, 0x25, 0x47, 0x02,
+ 0x39, 0xe8, 0x15, 0x3a, 0x22, 0x78, 0x86, 0x0b,
+ 0xf9, 0x1e, 0x8d, 0x98, 0xb2, 0x22, 0x82, 0xac,
+ 0x42, 0x94, 0xde, 0x64, 0xf0, 0xfd, 0xb3, 0x6c
+};
+enum { nonce45 = 0xf51a582daf4aa01aULL };
+
+static const u8 input46[] __initconst = {
+ 0xf6, 0xff, 0x20, 0xf9, 0x26, 0x7e, 0x0f, 0xa8,
+ 0x6a, 0x45, 0x5a, 0x91, 0x73, 0xc4, 0x4c, 0x63,
+ 0xe5, 0x61, 0x59, 0xca, 0xec, 0xc0, 0x20, 0x35,
+ 0xbc, 0x9f, 0x58, 0x9c, 0x5e, 0xa1, 0x17, 0x46,
+ 0xcc, 0xab, 0x6e, 0xd0, 0x4f, 0x24, 0xeb, 0x05,
+ 0x4d, 0x40, 0x41, 0xe0, 0x9d
+};
+static const u8 output46[] __initconst = {
+ 0x31, 0x6e, 0x63, 0x3f, 0x9c, 0xe6, 0xb1, 0xb7,
+ 0xef, 0x47, 0x46, 0xd7, 0xb1, 0x53, 0x42, 0x2f,
+ 0x2c, 0xc8, 0x01, 0xae, 0x8b, 0xec, 0x42, 0x2c,
+ 0x6b, 0x2c, 0x9c, 0xb2, 0xf0, 0x29, 0x06, 0xa5,
+ 0xcd, 0x7e, 0xc7, 0x3a, 0x38, 0x98, 0x8a, 0xde,
+ 0x03, 0x29, 0x14, 0x8f, 0xf9
+};
+static const u8 key46[] __initconst = {
+ 0xac, 0xa6, 0x44, 0x4a, 0x0d, 0x42, 0x10, 0xbc,
+ 0xd3, 0xc9, 0x8e, 0x9e, 0x71, 0xa3, 0x1c, 0x14,
+ 0x9d, 0x65, 0x0d, 0x49, 0x4d, 0x8c, 0xec, 0x46,
+ 0xe1, 0x41, 0xcd, 0xf5, 0xfc, 0x82, 0x75, 0x34
+};
+enum { nonce46 = 0x25f85182df84dec5ULL };
+
+static const u8 input47[] __initconst = {
+ 0xa1, 0xd2, 0xf2, 0x52, 0x2f, 0x79, 0x50, 0xb2,
+ 0x42, 0x29, 0x5b, 0x44, 0x20, 0xf9, 0xbd, 0x85,
+ 0xb7, 0x65, 0x77, 0x86, 0xce, 0x3e, 0x1c, 0xe4,
+ 0x70, 0x80, 0xdd, 0x72, 0x07, 0x48, 0x0f, 0x84,
+ 0x0d, 0xfd, 0x97, 0xc0, 0xb7, 0x48, 0x9b, 0xb4,
+ 0xec, 0xff, 0x73, 0x14, 0x99, 0xe4
+};
+static const u8 output47[] __initconst = {
+ 0xe5, 0x3c, 0x78, 0x66, 0x31, 0x1e, 0xd6, 0xc4,
+ 0x9e, 0x71, 0xb3, 0xd7, 0xd5, 0xad, 0x84, 0xf2,
+ 0x78, 0x61, 0x77, 0xf8, 0x31, 0xf0, 0x13, 0xad,
+ 0x66, 0xf5, 0x31, 0x7d, 0xeb, 0xdf, 0xaf, 0xcb,
+ 0xac, 0x28, 0x6c, 0xc2, 0x9e, 0xe7, 0x78, 0xa2,
+ 0xa2, 0x58, 0xce, 0x84, 0x76, 0x70
+};
+static const u8 key47[] __initconst = {
+ 0x05, 0x7f, 0xc0, 0x7f, 0x37, 0x20, 0x71, 0x02,
+ 0x3a, 0xe7, 0x20, 0x5a, 0x0a, 0x8f, 0x79, 0x5a,
+ 0xfe, 0xbb, 0x43, 0x4d, 0x2f, 0xcb, 0xf6, 0x9e,
+ 0xa2, 0x97, 0x00, 0xad, 0x0d, 0x51, 0x7e, 0x17
+};
+enum { nonce47 = 0xae707c60f54de32bULL };
+
+static const u8 input48[] __initconst = {
+ 0x80, 0x93, 0x77, 0x2e, 0x8d, 0xe8, 0xe6, 0xc1,
+ 0x27, 0xe6, 0xf2, 0x89, 0x5b, 0x33, 0x62, 0x18,
+ 0x80, 0x6e, 0x17, 0x22, 0x8e, 0x83, 0x31, 0x40,
+ 0x8f, 0xc9, 0x5c, 0x52, 0x6c, 0x0e, 0xa5, 0xe9,
+ 0x6c, 0x7f, 0xd4, 0x6a, 0x27, 0x56, 0x99, 0xce,
+ 0x8d, 0x37, 0x59, 0xaf, 0xc0, 0x0e, 0xe1
+};
+static const u8 output48[] __initconst = {
+ 0x02, 0xa4, 0x2e, 0x33, 0xb7, 0x7c, 0x2b, 0x9a,
+ 0x18, 0x5a, 0xba, 0x53, 0x38, 0xaf, 0x00, 0xeb,
+ 0xd8, 0x3d, 0x02, 0x77, 0x43, 0x45, 0x03, 0x91,
+ 0xe2, 0x5e, 0x4e, 0xeb, 0x50, 0xd5, 0x5b, 0xe0,
+ 0xf3, 0x33, 0xa7, 0xa2, 0xac, 0x07, 0x6f, 0xeb,
+ 0x3f, 0x6c, 0xcd, 0xf2, 0x6c, 0x61, 0x64
+};
+static const u8 key48[] __initconst = {
+ 0xf3, 0x79, 0xe7, 0xf8, 0x0e, 0x02, 0x05, 0x6b,
+ 0x83, 0x1a, 0xe7, 0x86, 0x6b, 0xe6, 0x8f, 0x3f,
+ 0xd3, 0xa3, 0xe4, 0x6e, 0x29, 0x06, 0xad, 0xbc,
+ 0xe8, 0x33, 0x56, 0x39, 0xdf, 0xb0, 0xe2, 0xfe
+};
+enum { nonce48 = 0xd849b938c6569da0ULL };
+
+static const u8 input49[] __initconst = {
+ 0x89, 0x3b, 0x88, 0x9e, 0x7b, 0x38, 0x16, 0x9f,
+ 0xa1, 0x28, 0xf6, 0xf5, 0x23, 0x74, 0x28, 0xb0,
+ 0xdf, 0x6c, 0x9e, 0x8a, 0x71, 0xaf, 0xed, 0x7a,
+ 0x39, 0x21, 0x57, 0x7d, 0x31, 0x6c, 0xee, 0x0d,
+ 0x11, 0x8d, 0x41, 0x9a, 0x5f, 0xb7, 0x27, 0x40,
+ 0x08, 0xad, 0xc6, 0xe0, 0x00, 0x43, 0x9e, 0xae
+};
+static const u8 output49[] __initconst = {
+ 0x4d, 0xfd, 0xdb, 0x4c, 0x77, 0xc1, 0x05, 0x07,
+ 0x4d, 0x6d, 0x32, 0xcb, 0x2e, 0x0e, 0xff, 0x65,
+ 0xc9, 0x27, 0xeb, 0xa9, 0x46, 0x5b, 0xab, 0x06,
+ 0xe6, 0xb6, 0x5a, 0x1e, 0x00, 0xfb, 0xcf, 0xe4,
+ 0xb9, 0x71, 0x40, 0x10, 0xef, 0x12, 0x39, 0xf0,
+ 0xea, 0x40, 0xb8, 0x9a, 0xa2, 0x85, 0x38, 0x48
+};
+static const u8 key49[] __initconst = {
+ 0xe7, 0x10, 0x40, 0xd9, 0x66, 0xc0, 0xa8, 0x6d,
+ 0xa3, 0xcc, 0x8b, 0xdd, 0x93, 0xf2, 0x6e, 0xe0,
+ 0x90, 0x7f, 0xd0, 0xf4, 0x37, 0x0c, 0x8b, 0x9b,
+ 0x4c, 0x4d, 0xe6, 0xf2, 0x1f, 0xe9, 0x95, 0x24
+};
+enum { nonce49 = 0xf269817bdae01bc0ULL };
+
+static const u8 input50[] __initconst = {
+ 0xda, 0x5b, 0x60, 0xcd, 0xed, 0x58, 0x8e, 0x7f,
+ 0xae, 0xdd, 0xc8, 0x2e, 0x16, 0x90, 0xea, 0x4b,
+ 0x0c, 0x74, 0x14, 0x35, 0xeb, 0xee, 0x2c, 0xff,
+ 0x46, 0x99, 0x97, 0x6e, 0xae, 0xa7, 0x8e, 0x6e,
+ 0x38, 0xfe, 0x63, 0xe7, 0x51, 0xd9, 0xaa, 0xce,
+ 0x7b, 0x1e, 0x7e, 0x5d, 0xc0, 0xe8, 0x10, 0x06,
+ 0x14
+};
+static const u8 output50[] __initconst = {
+ 0xe4, 0xe5, 0x86, 0x1b, 0x66, 0x19, 0xac, 0x49,
+ 0x1c, 0xbd, 0xee, 0x03, 0xaf, 0x11, 0xfc, 0x1f,
+ 0x6a, 0xd2, 0x50, 0x5c, 0xea, 0x2c, 0xa5, 0x75,
+ 0xfd, 0xb7, 0x0e, 0x80, 0x8f, 0xed, 0x3f, 0x31,
+ 0x47, 0xac, 0x67, 0x43, 0xb8, 0x2e, 0xb4, 0x81,
+ 0x6d, 0xe4, 0x1e, 0xb7, 0x8b, 0x0c, 0x53, 0xa9,
+ 0x26
+};
+static const u8 key50[] __initconst = {
+ 0xd7, 0xb2, 0x04, 0x76, 0x30, 0xcc, 0x38, 0x45,
+ 0xef, 0xdb, 0xc5, 0x86, 0x08, 0x61, 0xf0, 0xee,
+ 0x6d, 0xd8, 0x22, 0x04, 0x8c, 0xfb, 0xcb, 0x37,
+ 0xa6, 0xfb, 0x95, 0x22, 0xe1, 0x87, 0xb7, 0x6f
+};
+enum { nonce50 = 0x3b44d09c45607d38ULL };
+
+static const u8 input51[] __initconst = {
+ 0xa9, 0x41, 0x02, 0x4b, 0xd7, 0xd5, 0xd1, 0xf1,
+ 0x21, 0x55, 0xb2, 0x75, 0x6d, 0x77, 0x1b, 0x86,
+ 0xa9, 0xc8, 0x90, 0xfd, 0xed, 0x4a, 0x7b, 0x6c,
+ 0xb2, 0x5f, 0x9b, 0x5f, 0x16, 0xa1, 0x54, 0xdb,
+ 0xd6, 0x3f, 0x6a, 0x7f, 0x2e, 0x51, 0x9d, 0x49,
+ 0x5b, 0xa5, 0x0e, 0xf9, 0xfb, 0x2a, 0x38, 0xff,
+ 0x20, 0x8c
+};
+static const u8 output51[] __initconst = {
+ 0x18, 0xf7, 0x88, 0xc1, 0x72, 0xfd, 0x90, 0x4b,
+ 0xa9, 0x2d, 0xdb, 0x47, 0xb0, 0xa5, 0xc4, 0x37,
+ 0x01, 0x95, 0xc4, 0xb1, 0xab, 0xc5, 0x5b, 0xcd,
+ 0xe1, 0x97, 0x78, 0x13, 0xde, 0x6a, 0xff, 0x36,
+ 0xce, 0xa4, 0x67, 0xc5, 0x4a, 0x45, 0x2b, 0xd9,
+ 0xff, 0x8f, 0x06, 0x7c, 0x63, 0xbb, 0x83, 0x17,
+ 0xb4, 0x6b
+};
+static const u8 key51[] __initconst = {
+ 0x82, 0x1a, 0x79, 0xab, 0x9a, 0xb5, 0x49, 0x6a,
+ 0x30, 0x6b, 0x99, 0x19, 0x11, 0xc7, 0xa2, 0xf4,
+ 0xca, 0x55, 0xb9, 0xdd, 0xe7, 0x2f, 0xe7, 0xc1,
+ 0xdd, 0x27, 0xad, 0x80, 0xf2, 0x56, 0xad, 0xf3
+};
+enum { nonce51 = 0xe93aff94ca71a4a6ULL };
+
+static const u8 input52[] __initconst = {
+ 0x89, 0xdd, 0xf3, 0xfa, 0xb6, 0xc1, 0xaa, 0x9a,
+ 0xc8, 0xad, 0x6b, 0x00, 0xa1, 0x65, 0xea, 0x14,
+ 0x55, 0x54, 0x31, 0x8f, 0xf0, 0x03, 0x84, 0x51,
+ 0x17, 0x1e, 0x0a, 0x93, 0x6e, 0x79, 0x96, 0xa3,
+ 0x2a, 0x85, 0x9c, 0x89, 0xf8, 0xd1, 0xe2, 0x15,
+ 0x95, 0x05, 0xf4, 0x43, 0x4d, 0x6b, 0xf0, 0x71,
+ 0x3b, 0x3e, 0xba
+};
+static const u8 output52[] __initconst = {
+ 0x0c, 0x42, 0x6a, 0xb3, 0x66, 0x63, 0x5d, 0x2c,
+ 0x9f, 0x3d, 0xa6, 0x6e, 0xc7, 0x5f, 0x79, 0x2f,
+ 0x50, 0xe3, 0xd6, 0x07, 0x56, 0xa4, 0x2b, 0x2d,
+ 0x8d, 0x10, 0xc0, 0x6c, 0xa2, 0xfc, 0x97, 0xec,
+ 0x3f, 0x5c, 0x8d, 0x59, 0xbe, 0x84, 0xf1, 0x3e,
+ 0x38, 0x47, 0x4f, 0x75, 0x25, 0x66, 0x88, 0x14,
+ 0x03, 0xdd, 0xde
+};
+static const u8 key52[] __initconst = {
+ 0x4f, 0xb0, 0x27, 0xb6, 0xdd, 0x24, 0x0c, 0xdb,
+ 0x6b, 0x71, 0x2e, 0xac, 0xfc, 0x3f, 0xa6, 0x48,
+ 0x5d, 0xd5, 0xff, 0x53, 0xb5, 0x62, 0xf1, 0xe0,
+ 0x93, 0xfe, 0x39, 0x4c, 0x9f, 0x03, 0x11, 0xa7
+};
+enum { nonce52 = 0xed8becec3bdf6f25ULL };
+
+static const u8 input53[] __initconst = {
+ 0x68, 0xd1, 0xc7, 0x74, 0x44, 0x1c, 0x84, 0xde,
+ 0x27, 0x27, 0x35, 0xf0, 0x18, 0x0b, 0x57, 0xaa,
+ 0xd0, 0x1a, 0xd3, 0x3b, 0x5e, 0x5c, 0x62, 0x93,
+ 0xd7, 0x6b, 0x84, 0x3b, 0x71, 0x83, 0x77, 0x01,
+ 0x3e, 0x59, 0x45, 0xf4, 0x77, 0x6c, 0x6b, 0xcb,
+ 0x88, 0x45, 0x09, 0x1d, 0xc6, 0x45, 0x6e, 0xdc,
+ 0x6e, 0x51, 0xb8, 0x28
+};
+static const u8 output53[] __initconst = {
+ 0xc5, 0x90, 0x96, 0x78, 0x02, 0xf5, 0xc4, 0x3c,
+ 0xde, 0xd4, 0xd4, 0xc6, 0xa7, 0xad, 0x12, 0x47,
+ 0x45, 0xce, 0xcd, 0x8c, 0x35, 0xcc, 0xa6, 0x9e,
+ 0x5a, 0xc6, 0x60, 0xbb, 0xe3, 0xed, 0xec, 0x68,
+ 0x3f, 0x64, 0xf7, 0x06, 0x63, 0x9c, 0x8c, 0xc8,
+ 0x05, 0x3a, 0xad, 0x32, 0x79, 0x8b, 0x45, 0x96,
+ 0x93, 0x73, 0x4c, 0xe0
+};
+static const u8 key53[] __initconst = {
+ 0x42, 0x4b, 0x20, 0x81, 0x49, 0x50, 0xe9, 0xc2,
+ 0x43, 0x69, 0x36, 0xe7, 0x68, 0xae, 0xd5, 0x7e,
+ 0x42, 0x1a, 0x1b, 0xb4, 0x06, 0x4d, 0xa7, 0x17,
+ 0xb5, 0x31, 0xd6, 0x0c, 0xb0, 0x5c, 0x41, 0x0b
+};
+enum { nonce53 = 0xf44ce1931fbda3d7ULL };
+
+static const u8 input54[] __initconst = {
+ 0x7b, 0xf6, 0x8b, 0xae, 0xc0, 0xcb, 0x10, 0x8e,
+ 0xe8, 0xd8, 0x2e, 0x3b, 0x14, 0xba, 0xb4, 0xd2,
+ 0x58, 0x6b, 0x2c, 0xec, 0xc1, 0x81, 0x71, 0xb4,
+ 0xc6, 0xea, 0x08, 0xc5, 0xc9, 0x78, 0xdb, 0xa2,
+ 0xfa, 0x44, 0x50, 0x9b, 0xc8, 0x53, 0x8d, 0x45,
+ 0x42, 0xe7, 0x09, 0xc4, 0x29, 0xd8, 0x75, 0x02,
+ 0xbb, 0xb2, 0x78, 0xcf, 0xe7
+};
+static const u8 output54[] __initconst = {
+ 0xaf, 0x2c, 0x83, 0x26, 0x6e, 0x7f, 0xa6, 0xe9,
+ 0x03, 0x75, 0xfe, 0xfe, 0x87, 0x58, 0xcf, 0xb5,
+ 0xbc, 0x3c, 0x9d, 0xa1, 0x6e, 0x13, 0xf1, 0x0f,
+ 0x9e, 0xbc, 0xe0, 0x54, 0x24, 0x32, 0xce, 0x95,
+ 0xe6, 0xa5, 0x59, 0x3d, 0x24, 0x1d, 0x8f, 0xb1,
+ 0x74, 0x6c, 0x56, 0xe7, 0x96, 0xc1, 0x91, 0xc8,
+ 0x2d, 0x0e, 0xb7, 0x51, 0x10
+};
+static const u8 key54[] __initconst = {
+ 0x00, 0x68, 0x74, 0xdc, 0x30, 0x9e, 0xe3, 0x52,
+ 0xa9, 0xae, 0xb6, 0x7c, 0xa1, 0xdc, 0x12, 0x2d,
+ 0x98, 0x32, 0x7a, 0x77, 0xe1, 0xdd, 0xa3, 0x76,
+ 0x72, 0x34, 0x83, 0xd8, 0xb7, 0x69, 0xba, 0x77
+};
+enum { nonce54 = 0xbea57d79b798b63aULL };
+
+static const u8 input55[] __initconst = {
+ 0xb5, 0xf4, 0x2f, 0xc1, 0x5e, 0x10, 0xa7, 0x4e,
+ 0x74, 0x3d, 0xa3, 0x96, 0xc0, 0x4d, 0x7b, 0x92,
+ 0x8f, 0xdb, 0x2d, 0x15, 0x52, 0x6a, 0x95, 0x5e,
+ 0x40, 0x81, 0x4f, 0x70, 0x73, 0xea, 0x84, 0x65,
+ 0x3d, 0x9a, 0x4e, 0x03, 0x95, 0xf8, 0x5d, 0x2f,
+ 0x07, 0x02, 0x13, 0x13, 0xdd, 0x82, 0xe6, 0x3b,
+ 0xe1, 0x5f, 0xb3, 0x37, 0x9b, 0x88
+};
+static const u8 output55[] __initconst = {
+ 0xc1, 0x88, 0xbd, 0x92, 0x77, 0xad, 0x7c, 0x5f,
+ 0xaf, 0xa8, 0x57, 0x0e, 0x40, 0x0a, 0xdc, 0x70,
+ 0xfb, 0xc6, 0x71, 0xfd, 0xc4, 0x74, 0x60, 0xcc,
+ 0xa0, 0x89, 0x8e, 0x99, 0xf0, 0x06, 0xa6, 0x7c,
+ 0x97, 0x42, 0x21, 0x81, 0x6a, 0x07, 0xe7, 0xb3,
+ 0xf7, 0xa5, 0x03, 0x71, 0x50, 0x05, 0x63, 0x17,
+ 0xa9, 0x46, 0x0b, 0xff, 0x30, 0x78
+};
+static const u8 key55[] __initconst = {
+ 0x19, 0x8f, 0xe7, 0xd7, 0x6b, 0x7f, 0x6f, 0x69,
+ 0x86, 0x91, 0x0f, 0xa7, 0x4a, 0x69, 0x8e, 0x34,
+ 0xf3, 0xdb, 0xde, 0xaf, 0xf2, 0x66, 0x1d, 0x64,
+ 0x97, 0x0c, 0xcf, 0xfa, 0x33, 0x84, 0xfd, 0x0c
+};
+enum { nonce55 = 0x80aa3d3e2c51ef06ULL };
+
+static const u8 input56[] __initconst = {
+ 0x6b, 0xe9, 0x73, 0x42, 0x27, 0x5e, 0x12, 0xcd,
+ 0xaa, 0x45, 0x12, 0x8b, 0xb3, 0xe6, 0x54, 0x33,
+ 0x31, 0x7d, 0xe2, 0x25, 0xc6, 0x86, 0x47, 0x67,
+ 0x86, 0x83, 0xe4, 0x46, 0xb5, 0x8f, 0x2c, 0xbb,
+ 0xe4, 0xb8, 0x9f, 0xa2, 0xa4, 0xe8, 0x75, 0x96,
+ 0x92, 0x51, 0x51, 0xac, 0x8e, 0x2e, 0x6f, 0xfc,
+ 0xbd, 0x0d, 0xa3, 0x9f, 0x16, 0x55, 0x3e
+};
+static const u8 output56[] __initconst = {
+ 0x42, 0x99, 0x73, 0x6c, 0xd9, 0x4b, 0x16, 0xe5,
+ 0x18, 0x63, 0x1a, 0xd9, 0x0e, 0xf1, 0x15, 0x2e,
+ 0x0f, 0x4b, 0xe4, 0x5f, 0xa0, 0x4d, 0xde, 0x9f,
+ 0xa7, 0x18, 0xc1, 0x0c, 0x0b, 0xae, 0x55, 0xe4,
+ 0x89, 0x18, 0xa4, 0x78, 0x9d, 0x25, 0x0d, 0xd5,
+ 0x94, 0x0f, 0xf9, 0x78, 0xa3, 0xa6, 0xe9, 0x9e,
+ 0x2c, 0x73, 0xf0, 0xf7, 0x35, 0xf3, 0x2b
+};
+static const u8 key56[] __initconst = {
+ 0x7d, 0x12, 0xad, 0x51, 0xd5, 0x6f, 0x8f, 0x96,
+ 0xc0, 0x5d, 0x9a, 0xd1, 0x7e, 0x20, 0x98, 0x0e,
+ 0x3c, 0x0a, 0x67, 0x6b, 0x1b, 0x88, 0x69, 0xd4,
+ 0x07, 0x8c, 0xaf, 0x0f, 0x3a, 0x28, 0xe4, 0x5d
+};
+enum { nonce56 = 0x70f4c372fb8b5984ULL };
+
+static const u8 input57[] __initconst = {
+ 0x28, 0xa3, 0x06, 0xe8, 0xe7, 0x08, 0xb9, 0xef,
+ 0x0d, 0x63, 0x15, 0x99, 0xb2, 0x78, 0x7e, 0xaf,
+ 0x30, 0x50, 0xcf, 0xea, 0xc9, 0x91, 0x41, 0x2f,
+ 0x3b, 0x38, 0x70, 0xc4, 0x87, 0xb0, 0x3a, 0xee,
+ 0x4a, 0xea, 0xe3, 0x83, 0x68, 0x8b, 0xcf, 0xda,
+ 0x04, 0xa5, 0xbd, 0xb2, 0xde, 0x3c, 0x55, 0x13,
+ 0xfe, 0x96, 0xad, 0xc1, 0x61, 0x1b, 0x98, 0xde
+};
+static const u8 output57[] __initconst = {
+ 0xf4, 0x44, 0xe9, 0xd2, 0x6d, 0xc2, 0x5a, 0xe9,
+ 0xfd, 0x7e, 0x41, 0x54, 0x3f, 0xf4, 0x12, 0xd8,
+ 0x55, 0x0d, 0x12, 0x9b, 0xd5, 0x2e, 0x95, 0xe5,
+ 0x77, 0x42, 0x3f, 0x2c, 0xfb, 0x28, 0x9d, 0x72,
+ 0x6d, 0x89, 0x82, 0x27, 0x64, 0x6f, 0x0d, 0x57,
+ 0xa1, 0x25, 0xa3, 0x6b, 0x88, 0x9a, 0xac, 0x0c,
+ 0x76, 0x19, 0x90, 0xe2, 0x50, 0x5a, 0xf8, 0x12
+};
+static const u8 key57[] __initconst = {
+ 0x08, 0x26, 0xb8, 0xac, 0xf3, 0xa5, 0xc6, 0xa3,
+ 0x7f, 0x09, 0x87, 0xf5, 0x6c, 0x5a, 0x85, 0x6c,
+ 0x3d, 0xbd, 0xde, 0xd5, 0x87, 0xa3, 0x98, 0x7a,
+ 0xaa, 0x40, 0x3e, 0xf7, 0xff, 0x44, 0x5d, 0xee
+};
+enum { nonce57 = 0xc03a6130bf06b089ULL };
+
+static const u8 input58[] __initconst = {
+ 0x82, 0xa5, 0x38, 0x6f, 0xaa, 0xb4, 0xaf, 0xb2,
+ 0x42, 0x01, 0xa8, 0x39, 0x3f, 0x15, 0x51, 0xa8,
+ 0x11, 0x1b, 0x93, 0xca, 0x9c, 0xa0, 0x57, 0x68,
+ 0x8f, 0xdb, 0x68, 0x53, 0x51, 0x6d, 0x13, 0x22,
+ 0x12, 0x9b, 0xbd, 0x33, 0xa8, 0x52, 0x40, 0x57,
+ 0x80, 0x9b, 0x98, 0xef, 0x56, 0x70, 0x11, 0xfa,
+ 0x36, 0x69, 0x7d, 0x15, 0x48, 0xf9, 0x3b, 0xeb,
+ 0x42
+};
+static const u8 output58[] __initconst = {
+ 0xff, 0x3a, 0x74, 0xc3, 0x3e, 0x44, 0x64, 0x4d,
+ 0x0e, 0x5f, 0x9d, 0xa8, 0xdb, 0xbe, 0x12, 0xef,
+ 0xba, 0x56, 0x65, 0x50, 0x76, 0xaf, 0xa4, 0x4e,
+ 0x01, 0xc1, 0xd3, 0x31, 0x14, 0xe2, 0xbe, 0x7b,
+ 0xa5, 0x67, 0xb4, 0xe3, 0x68, 0x40, 0x9c, 0xb0,
+ 0xb1, 0x78, 0xef, 0x49, 0x03, 0x0f, 0x2d, 0x56,
+ 0xb4, 0x37, 0xdb, 0xbc, 0x2d, 0x68, 0x1c, 0x3c,
+ 0xf1
+};
+static const u8 key58[] __initconst = {
+ 0x7e, 0xf1, 0x7c, 0x20, 0x65, 0xed, 0xcd, 0xd7,
+ 0x57, 0xe8, 0xdb, 0x90, 0x87, 0xdb, 0x5f, 0x63,
+ 0x3d, 0xdd, 0xb8, 0x2b, 0x75, 0x8e, 0x04, 0xb5,
+ 0xf4, 0x12, 0x79, 0xa9, 0x4d, 0x42, 0x16, 0x7f
+};
+enum { nonce58 = 0x92838183f80d2f7fULL };
+
+static const u8 input59[] __initconst = {
+ 0x37, 0xf1, 0x9d, 0xdd, 0xd7, 0x08, 0x9f, 0x13,
+ 0xc5, 0x21, 0x82, 0x75, 0x08, 0x9e, 0x25, 0x16,
+ 0xb1, 0xd1, 0x71, 0x42, 0x28, 0x63, 0xac, 0x47,
+ 0x71, 0x54, 0xb1, 0xfc, 0x39, 0xf0, 0x61, 0x4f,
+ 0x7c, 0x6d, 0x4f, 0xc8, 0x33, 0xef, 0x7e, 0xc8,
+ 0xc0, 0x97, 0xfc, 0x1a, 0x61, 0xb4, 0x87, 0x6f,
+ 0xdd, 0x5a, 0x15, 0x7b, 0x1b, 0x95, 0x50, 0x94,
+ 0x1d, 0xba
+};
+static const u8 output59[] __initconst = {
+ 0x73, 0x67, 0xc5, 0x07, 0xbb, 0x57, 0x79, 0xd5,
+ 0xc9, 0x04, 0xdd, 0x88, 0xf3, 0x86, 0xe5, 0x70,
+ 0x49, 0x31, 0xe0, 0xcc, 0x3b, 0x1d, 0xdf, 0xb0,
+ 0xaf, 0xf4, 0x2d, 0xe0, 0x06, 0x10, 0x91, 0x8d,
+ 0x1c, 0xcf, 0x31, 0x0b, 0xf6, 0x73, 0xda, 0x1c,
+ 0xf0, 0x17, 0x52, 0x9e, 0x20, 0x2e, 0x9f, 0x8c,
+ 0xb3, 0x59, 0xce, 0xd4, 0xd3, 0xc1, 0x81, 0xe9,
+ 0x11, 0x36
+};
+static const u8 key59[] __initconst = {
+ 0xbd, 0x07, 0xd0, 0x53, 0x2c, 0xb3, 0xcc, 0x3f,
+ 0xc4, 0x95, 0xfd, 0xe7, 0x81, 0xb3, 0x29, 0x99,
+ 0x05, 0x45, 0xd6, 0x95, 0x25, 0x0b, 0x72, 0xd3,
+ 0xcd, 0xbb, 0x73, 0xf8, 0xfa, 0xc0, 0x9b, 0x7a
+};
+enum { nonce59 = 0x4a0db819b0d519e2ULL };
+
+static const u8 input60[] __initconst = {
+ 0x58, 0x4e, 0xdf, 0x94, 0x3c, 0x76, 0x0a, 0x79,
+ 0x47, 0xf1, 0xbe, 0x88, 0xd3, 0xba, 0x94, 0xd8,
+ 0xe2, 0x8f, 0xe3, 0x2f, 0x2f, 0x74, 0x82, 0x55,
+ 0xc3, 0xda, 0xe2, 0x4e, 0x2c, 0x8c, 0x45, 0x1d,
+ 0x72, 0x8f, 0x54, 0x41, 0xb5, 0xb7, 0x69, 0xe4,
+ 0xdc, 0xd2, 0x36, 0x21, 0x5c, 0x28, 0x52, 0xf7,
+ 0x98, 0x8e, 0x72, 0xa7, 0x6d, 0x57, 0xed, 0xdc,
+ 0x3c, 0xe6, 0x6a
+};
+static const u8 output60[] __initconst = {
+ 0xda, 0xaf, 0xb5, 0xe3, 0x30, 0x65, 0x5c, 0xb1,
+ 0x48, 0x08, 0x43, 0x7b, 0x9e, 0xd2, 0x6a, 0x62,
+ 0x56, 0x7c, 0xad, 0xd9, 0xe5, 0xf6, 0x09, 0x71,
+ 0xcd, 0xe6, 0x05, 0x6b, 0x3f, 0x44, 0x3a, 0x5c,
+ 0xf6, 0xf8, 0xd7, 0xce, 0x7d, 0xd1, 0xe0, 0x4f,
+ 0x88, 0x15, 0x04, 0xd8, 0x20, 0xf0, 0x3e, 0xef,
+ 0xae, 0xa6, 0x27, 0xa3, 0x0e, 0xfc, 0x18, 0x90,
+ 0x33, 0xcd, 0xd3
+};
+static const u8 key60[] __initconst = {
+ 0xbf, 0xfd, 0x25, 0xb5, 0xb2, 0xfc, 0x78, 0x0c,
+ 0x8e, 0xb9, 0x57, 0x2f, 0x26, 0x4a, 0x7e, 0x71,
+ 0xcc, 0xf2, 0xe0, 0xfd, 0x24, 0x11, 0x20, 0x23,
+ 0x57, 0x00, 0xff, 0x80, 0x11, 0x0c, 0x1e, 0xff
+};
+enum { nonce60 = 0xf18df56fdb7954adULL };
+
+static const u8 input61[] __initconst = {
+ 0xb0, 0xf3, 0x06, 0xbc, 0x22, 0xae, 0x49, 0x40,
+ 0xae, 0xff, 0x1b, 0x31, 0xa7, 0x98, 0xab, 0x1d,
+ 0xe7, 0x40, 0x23, 0x18, 0x4f, 0xab, 0x8e, 0x93,
+ 0x82, 0xf4, 0x56, 0x61, 0xfd, 0x2b, 0xcf, 0xa7,
+ 0xc4, 0xb4, 0x0a, 0xf4, 0xcb, 0xc7, 0x8c, 0x40,
+ 0x57, 0xac, 0x0b, 0x3e, 0x2a, 0x0a, 0x67, 0x83,
+ 0x50, 0xbf, 0xec, 0xb0, 0xc7, 0xf1, 0x32, 0x26,
+ 0x98, 0x80, 0x33, 0xb4
+};
+static const u8 output61[] __initconst = {
+ 0x9d, 0x23, 0x0e, 0xff, 0xcc, 0x7c, 0xd5, 0xcf,
+ 0x1a, 0xb8, 0x59, 0x1e, 0x92, 0xfd, 0x7f, 0xca,
+ 0xca, 0x3c, 0x18, 0x81, 0xde, 0xfa, 0x59, 0xc8,
+ 0x6f, 0x9c, 0x24, 0x3f, 0x3a, 0xe6, 0x0b, 0xb4,
+ 0x34, 0x48, 0x69, 0xfc, 0xb6, 0xea, 0xb2, 0xde,
+ 0x9f, 0xfd, 0x92, 0x36, 0x18, 0x98, 0x99, 0xaa,
+ 0x65, 0xe2, 0xea, 0xf4, 0xb1, 0x47, 0x8e, 0xb0,
+ 0xe7, 0xd4, 0x7a, 0x2c
+};
+static const u8 key61[] __initconst = {
+ 0xd7, 0xfd, 0x9b, 0xbd, 0x8f, 0x65, 0x0d, 0x00,
+ 0xca, 0xa1, 0x6c, 0x85, 0x85, 0xa4, 0x6d, 0xf1,
+ 0xb1, 0x68, 0x0c, 0x8b, 0x5d, 0x37, 0x72, 0xd0,
+ 0xd8, 0xd2, 0x25, 0xab, 0x9f, 0x7b, 0x7d, 0x95
+};
+enum { nonce61 = 0xd82caf72a9c4864fULL };
+
+static const u8 input62[] __initconst = {
+ 0x10, 0x77, 0xf3, 0x2f, 0xc2, 0x50, 0xd6, 0x0c,
+ 0xba, 0xa8, 0x8d, 0xce, 0x0d, 0x58, 0x9e, 0x87,
+ 0xb1, 0x59, 0x66, 0x0a, 0x4a, 0xb3, 0xd8, 0xca,
+ 0x0a, 0x6b, 0xf8, 0xc6, 0x2b, 0x3f, 0x8e, 0x09,
+ 0xe0, 0x0a, 0x15, 0x85, 0xfe, 0xaa, 0xc6, 0xbd,
+ 0x30, 0xef, 0xe4, 0x10, 0x78, 0x03, 0xc1, 0xc7,
+ 0x8a, 0xd9, 0xde, 0x0b, 0x51, 0x07, 0xc4, 0x7b,
+ 0xe2, 0x2e, 0x36, 0x3a, 0xc2
+};
+static const u8 output62[] __initconst = {
+ 0xa0, 0x0c, 0xfc, 0xc1, 0xf6, 0xaf, 0xc2, 0xb8,
+ 0x5c, 0xef, 0x6e, 0xf3, 0xce, 0x15, 0x48, 0x05,
+ 0xb5, 0x78, 0x49, 0x51, 0x1f, 0x9d, 0xf4, 0xbf,
+ 0x2f, 0x53, 0xa2, 0xd1, 0x15, 0x20, 0x82, 0x6b,
+ 0xd2, 0x22, 0x6c, 0x4e, 0x14, 0x87, 0xe3, 0xd7,
+ 0x49, 0x45, 0x84, 0xdb, 0x5f, 0x68, 0x60, 0xc4,
+ 0xb3, 0xe6, 0x3f, 0xd1, 0xfc, 0xa5, 0x73, 0xf3,
+ 0xfc, 0xbb, 0xbe, 0xc8, 0x9d
+};
+static const u8 key62[] __initconst = {
+ 0x6e, 0xc9, 0xaf, 0xce, 0x35, 0xb9, 0x86, 0xd1,
+ 0xce, 0x5f, 0xd9, 0xbb, 0xd5, 0x1f, 0x7c, 0xcd,
+ 0xfe, 0x19, 0xaa, 0x3d, 0xea, 0x64, 0xc1, 0x28,
+ 0x40, 0xba, 0xa1, 0x28, 0xcd, 0x40, 0xb6, 0xf2
+};
+enum { nonce62 = 0xa1c0c265f900cde8ULL };
+
+static const u8 input63[] __initconst = {
+ 0x7a, 0x70, 0x21, 0x2c, 0xef, 0xa6, 0x36, 0xd4,
+ 0xe0, 0xab, 0x8c, 0x25, 0x73, 0x34, 0xc8, 0x94,
+ 0x6c, 0x81, 0xcb, 0x19, 0x8d, 0x5a, 0x49, 0xaa,
+ 0x6f, 0xba, 0x83, 0x72, 0x02, 0x5e, 0xf5, 0x89,
+ 0xce, 0x79, 0x7e, 0x13, 0x3d, 0x5b, 0x98, 0x60,
+ 0x5d, 0xd9, 0xfb, 0x15, 0x93, 0x4c, 0xf3, 0x51,
+ 0x49, 0x55, 0xd1, 0x58, 0xdd, 0x7e, 0x6d, 0xfe,
+ 0xdd, 0x84, 0x23, 0x05, 0xba, 0xe9
+};
+static const u8 output63[] __initconst = {
+ 0x20, 0xb3, 0x5c, 0x03, 0x03, 0x78, 0x17, 0xfc,
+ 0x3b, 0x35, 0x30, 0x9a, 0x00, 0x18, 0xf5, 0xc5,
+ 0x06, 0x53, 0xf5, 0x04, 0x24, 0x9d, 0xd1, 0xb2,
+ 0xac, 0x5a, 0xb6, 0x2a, 0xa5, 0xda, 0x50, 0x00,
+ 0xec, 0xff, 0xa0, 0x7a, 0x14, 0x7b, 0xe4, 0x6b,
+ 0x63, 0xe8, 0x66, 0x86, 0x34, 0xfd, 0x74, 0x44,
+ 0xa2, 0x50, 0x97, 0x0d, 0xdc, 0xc3, 0x84, 0xf8,
+ 0x71, 0x02, 0x31, 0x95, 0xed, 0x54
+};
+static const u8 key63[] __initconst = {
+ 0x7d, 0x64, 0xb4, 0x12, 0x81, 0xe4, 0xe6, 0x8f,
+ 0xcc, 0xe7, 0xd1, 0x1f, 0x70, 0x20, 0xfd, 0xb8,
+ 0x3a, 0x7d, 0xa6, 0x53, 0x65, 0x30, 0x5d, 0xe3,
+ 0x1a, 0x44, 0xbe, 0x62, 0xed, 0x90, 0xc4, 0xd1
+};
+enum { nonce63 = 0xe8e849596c942276ULL };
+
+static const u8 input64[] __initconst = {
+ 0x84, 0xf8, 0xda, 0x87, 0x23, 0x39, 0x60, 0xcf,
+ 0xc5, 0x50, 0x7e, 0xc5, 0x47, 0x29, 0x7c, 0x05,
+ 0xc2, 0xb4, 0xf4, 0xb2, 0xec, 0x5d, 0x48, 0x36,
+ 0xbf, 0xfc, 0x06, 0x8c, 0xf2, 0x0e, 0x88, 0xe7,
+ 0xc9, 0xc5, 0xa4, 0xa2, 0x83, 0x20, 0xa1, 0x6f,
+ 0x37, 0xe5, 0x2d, 0xa1, 0x72, 0xa1, 0x19, 0xef,
+ 0x05, 0x42, 0x08, 0xf2, 0x57, 0x47, 0x31, 0x1e,
+ 0x17, 0x76, 0x13, 0xd3, 0xcc, 0x75, 0x2c
+};
+static const u8 output64[] __initconst = {
+ 0xcb, 0xec, 0x90, 0x88, 0xeb, 0x31, 0x69, 0x20,
+ 0xa6, 0xdc, 0xff, 0x76, 0x98, 0xb0, 0x24, 0x49,
+ 0x7b, 0x20, 0xd9, 0xd1, 0x1b, 0xe3, 0x61, 0xdc,
+ 0xcf, 0x51, 0xf6, 0x70, 0x72, 0x33, 0x28, 0x94,
+ 0xac, 0x73, 0x18, 0xcf, 0x93, 0xfd, 0xca, 0x08,
+ 0x0d, 0xa2, 0xb9, 0x57, 0x1e, 0x51, 0xb6, 0x07,
+ 0x5c, 0xc1, 0x13, 0x64, 0x1d, 0x18, 0x6f, 0xe6,
+ 0x0b, 0xb7, 0x14, 0x03, 0x43, 0xb6, 0xaf
+};
+static const u8 key64[] __initconst = {
+ 0xbf, 0x82, 0x65, 0xe4, 0x50, 0xf9, 0x5e, 0xea,
+ 0x28, 0x91, 0xd1, 0xd2, 0x17, 0x7c, 0x13, 0x7e,
+ 0xf5, 0xd5, 0x6b, 0x06, 0x1c, 0x20, 0xc2, 0x82,
+ 0xa1, 0x7a, 0xa2, 0x14, 0xa1, 0xb0, 0x54, 0x58
+};
+enum { nonce64 = 0xe57c5095aa5723c9ULL };
+
+static const u8 input65[] __initconst = {
+ 0x1c, 0xfb, 0xd3, 0x3f, 0x85, 0xd7, 0xba, 0x7b,
+ 0xae, 0xb1, 0xa5, 0xd2, 0xe5, 0x40, 0xce, 0x4d,
+ 0x3e, 0xab, 0x17, 0x9d, 0x7d, 0x9f, 0x03, 0x98,
+ 0x3f, 0x9f, 0xc8, 0xdd, 0x36, 0x17, 0x43, 0x5c,
+ 0x34, 0xd1, 0x23, 0xe0, 0x77, 0xbf, 0x35, 0x5d,
+ 0x8f, 0xb1, 0xcb, 0x82, 0xbb, 0x39, 0x69, 0xd8,
+ 0x90, 0x45, 0x37, 0xfd, 0x98, 0x25, 0xf7, 0x5b,
+ 0xce, 0x06, 0x43, 0xba, 0x61, 0xa8, 0x47, 0xb9
+};
+static const u8 output65[] __initconst = {
+ 0x73, 0xa5, 0x68, 0xab, 0x8b, 0xa5, 0xc3, 0x7e,
+ 0x74, 0xf8, 0x9d, 0xf5, 0x93, 0x6e, 0xf2, 0x71,
+ 0x6d, 0xde, 0x82, 0xc5, 0x40, 0xa0, 0x46, 0xb3,
+ 0x9a, 0x78, 0xa8, 0xf7, 0xdf, 0xb1, 0xc3, 0xdd,
+ 0x8d, 0x90, 0x00, 0x68, 0x21, 0x48, 0xe8, 0xba,
+ 0x56, 0x9f, 0x8f, 0xe7, 0xa4, 0x4d, 0x36, 0x55,
+ 0xd0, 0x34, 0x99, 0xa6, 0x1c, 0x4c, 0xc1, 0xe2,
+ 0x65, 0x98, 0x14, 0x8e, 0x6a, 0x05, 0xb1, 0x2b
+};
+static const u8 key65[] __initconst = {
+ 0xbd, 0x5c, 0x8a, 0xb0, 0x11, 0x29, 0xf3, 0x00,
+ 0x7a, 0x78, 0x32, 0x63, 0x34, 0x00, 0xe6, 0x7d,
+ 0x30, 0x54, 0xde, 0x37, 0xda, 0xc2, 0xc4, 0x3d,
+ 0x92, 0x6b, 0x4c, 0xc2, 0x92, 0xe9, 0x9e, 0x2a
+};
+enum { nonce65 = 0xf654a3031de746f2ULL };
+
+static const u8 input66[] __initconst = {
+ 0x4b, 0x27, 0x30, 0x8f, 0x28, 0xd8, 0x60, 0x46,
+ 0x39, 0x06, 0x49, 0xea, 0x1b, 0x71, 0x26, 0xe0,
+ 0x99, 0x2b, 0xd4, 0x8f, 0x64, 0x64, 0xcd, 0xac,
+ 0x1d, 0x78, 0x88, 0x90, 0xe1, 0x5c, 0x24, 0x4b,
+ 0xdc, 0x2d, 0xb7, 0xee, 0x3a, 0xe6, 0x86, 0x2c,
+ 0x21, 0xe4, 0x2b, 0xfc, 0xe8, 0x19, 0xca, 0x65,
+ 0xe7, 0xdd, 0x6f, 0x52, 0xb3, 0x11, 0xe1, 0xe2,
+ 0xbf, 0xe8, 0x70, 0xe3, 0x0d, 0x45, 0xb8, 0xa5,
+ 0x20, 0xb7, 0xb5, 0xaf, 0xff, 0x08, 0xcf, 0x23,
+ 0x65, 0xdf, 0x8d, 0xc3, 0x31, 0xf3, 0x1e, 0x6a,
+ 0x58, 0x8d, 0xcc, 0x45, 0x16, 0x86, 0x1f, 0x31,
+ 0x5c, 0x27, 0xcd, 0xc8, 0x6b, 0x19, 0x1e, 0xec,
+ 0x44, 0x75, 0x63, 0x97, 0xfd, 0x79, 0xf6, 0x62,
+ 0xc5, 0xba, 0x17, 0xc7, 0xab, 0x8f, 0xbb, 0xed,
+ 0x85, 0x2a, 0x98, 0x79, 0x21, 0xec, 0x6e, 0x4d,
+ 0xdc, 0xfa, 0x72, 0x52, 0xba, 0xc8, 0x4c
+};
+static const u8 output66[] __initconst = {
+ 0x76, 0x5b, 0x2c, 0xa7, 0x62, 0xb9, 0x08, 0x4a,
+ 0xc6, 0x4a, 0x92, 0xc3, 0xbb, 0x10, 0xb3, 0xee,
+ 0xff, 0xb9, 0x07, 0xc7, 0x27, 0xcb, 0x1e, 0xcf,
+ 0x58, 0x6f, 0xa1, 0x64, 0xe8, 0xf1, 0x4e, 0xe1,
+ 0xef, 0x18, 0x96, 0xab, 0x97, 0x28, 0xd1, 0x7c,
+ 0x71, 0x6c, 0xd1, 0xe2, 0xfa, 0xd9, 0x75, 0xcb,
+ 0xeb, 0xea, 0x0c, 0x86, 0x82, 0xd8, 0xf4, 0xcc,
+ 0xea, 0xa3, 0x00, 0xfa, 0x82, 0xd2, 0xcd, 0xcb,
+ 0xdb, 0x63, 0x28, 0xe2, 0x82, 0xe9, 0x01, 0xed,
+ 0x31, 0xe6, 0x71, 0x45, 0x08, 0x89, 0x8a, 0x23,
+ 0xa8, 0xb5, 0xc2, 0xe2, 0x9f, 0xe9, 0xb8, 0x9a,
+ 0xc4, 0x79, 0x6d, 0x71, 0x52, 0x61, 0x74, 0x6c,
+ 0x1b, 0xd7, 0x65, 0x6d, 0x03, 0xc4, 0x1a, 0xc0,
+ 0x50, 0xba, 0xd6, 0xc9, 0x43, 0x50, 0xbe, 0x09,
+ 0x09, 0x8a, 0xdb, 0xaa, 0x76, 0x4e, 0x3b, 0x61,
+ 0x3c, 0x7c, 0x44, 0xe7, 0xdb, 0x10, 0xa7
+};
+static const u8 key66[] __initconst = {
+ 0x88, 0xdf, 0xca, 0x68, 0xaf, 0x4f, 0xb3, 0xfd,
+ 0x6e, 0xa7, 0x95, 0x35, 0x8a, 0xe8, 0x37, 0xe8,
+ 0xc8, 0x55, 0xa2, 0x2a, 0x6d, 0x77, 0xf8, 0x93,
+ 0x7a, 0x41, 0xf3, 0x7b, 0x95, 0xdf, 0x89, 0xf5
+};
+enum { nonce66 = 0x1024b4fdd415cf82ULL };
+
+static const u8 input67[] __initconst = {
+ 0xd4, 0x2e, 0xfa, 0x92, 0xe9, 0x29, 0x68, 0xb7,
+ 0x54, 0x2c, 0xf7, 0xa4, 0x2d, 0xb7, 0x50, 0xb5,
+ 0xc5, 0xb2, 0x9d, 0x17, 0x5e, 0x0a, 0xca, 0x37,
+ 0xbf, 0x60, 0xae, 0xd2, 0x98, 0xe9, 0xfa, 0x59,
+ 0x67, 0x62, 0xe6, 0x43, 0x0c, 0x77, 0x80, 0x82,
+ 0x33, 0x61, 0xa3, 0xff, 0xc1, 0xa0, 0x8f, 0x56,
+ 0xbc, 0xec, 0x65, 0x43, 0x88, 0xa5, 0xff, 0x51,
+ 0x64, 0x30, 0xee, 0x34, 0xb7, 0x5c, 0x28, 0x68,
+ 0xc3, 0x52, 0xd2, 0xac, 0x78, 0x2a, 0xa6, 0x10,
+ 0xb8, 0xb2, 0x4c, 0x80, 0x4f, 0x99, 0xb2, 0x36,
+ 0x94, 0x8f, 0x66, 0xcb, 0xa1, 0x91, 0xed, 0x06,
+ 0x42, 0x6d, 0xc1, 0xae, 0x55, 0x93, 0xdd, 0x93,
+ 0x9e, 0x88, 0x34, 0x7f, 0x98, 0xeb, 0xbe, 0x61,
+ 0xf9, 0xa9, 0x0f, 0xd9, 0xc4, 0x87, 0xd5, 0xef,
+ 0xcc, 0x71, 0x8c, 0x0e, 0xce, 0xad, 0x02, 0xcf,
+ 0xa2, 0x61, 0xdf, 0xb1, 0xfe, 0x3b, 0xdc, 0xc0,
+ 0x58, 0xb5, 0x71, 0xa1, 0x83, 0xc9, 0xb4, 0xaf,
+ 0x9d, 0x54, 0x12, 0xcd, 0xea, 0x06, 0xd6, 0x4e,
+ 0xe5, 0x27, 0x0c, 0xc3, 0xbb, 0xa8, 0x0a, 0x81,
+ 0x75, 0xc3, 0xc9, 0xd4, 0x35, 0x3e, 0x53, 0x9f,
+ 0xaa, 0x20, 0xc0, 0x68, 0x39, 0x2c, 0x96, 0x39,
+ 0x53, 0x81, 0xda, 0x07, 0x0f, 0x44, 0xa5, 0x47,
+ 0x0e, 0xb3, 0x87, 0x0d, 0x1b, 0xc1, 0xe5, 0x41,
+ 0x35, 0x12, 0x58, 0x96, 0x69, 0x8a, 0x1a, 0xa3,
+ 0x9d, 0x3d, 0xd4, 0xb1, 0x8e, 0x1f, 0x96, 0x87,
+ 0xda, 0xd3, 0x19, 0xe2, 0xb1, 0x3a, 0x19, 0x74,
+ 0xa0, 0x00, 0x9f, 0x4d, 0xbc, 0xcb, 0x0c, 0xe9,
+ 0xec, 0x10, 0xdf, 0x2a, 0x88, 0xdc, 0x30, 0x51,
+ 0x46, 0x56, 0x53, 0x98, 0x6a, 0x26, 0x14, 0x05,
+ 0x54, 0x81, 0x55, 0x0b, 0x3c, 0x85, 0xdd, 0x33,
+ 0x81, 0x11, 0x29, 0x82, 0x46, 0x35, 0xe1, 0xdb,
+ 0x59, 0x7b
+};
+static const u8 output67[] __initconst = {
+ 0x64, 0x6c, 0xda, 0x7f, 0xd4, 0xa9, 0x2a, 0x5e,
+ 0x22, 0xae, 0x8d, 0x67, 0xdb, 0xee, 0xfd, 0xd0,
+ 0x44, 0x80, 0x17, 0xb2, 0xe3, 0x87, 0xad, 0x57,
+ 0x15, 0xcb, 0x88, 0x64, 0xc0, 0xf1, 0x49, 0x3d,
+ 0xfa, 0xbe, 0xa8, 0x9f, 0x12, 0xc3, 0x57, 0x56,
+ 0x70, 0xa5, 0xc5, 0x6b, 0xf1, 0xab, 0xd5, 0xde,
+ 0x77, 0x92, 0x6a, 0x56, 0x03, 0xf5, 0x21, 0x0d,
+ 0xb6, 0xc4, 0xcc, 0x62, 0x44, 0x3f, 0xb1, 0xc1,
+ 0x61, 0x41, 0x90, 0xb2, 0xd5, 0xb8, 0xf3, 0x57,
+ 0xfb, 0xc2, 0x6b, 0x25, 0x58, 0xc8, 0x45, 0x20,
+ 0x72, 0x29, 0x6f, 0x9d, 0xb5, 0x81, 0x4d, 0x2b,
+ 0xb2, 0x89, 0x9e, 0x91, 0x53, 0x97, 0x1c, 0xd9,
+ 0x3d, 0x79, 0xdc, 0x14, 0xae, 0x01, 0x73, 0x75,
+ 0xf0, 0xca, 0xd5, 0xab, 0x62, 0x5c, 0x7a, 0x7d,
+ 0x3f, 0xfe, 0x22, 0x7d, 0xee, 0xe2, 0xcb, 0x76,
+ 0x55, 0xec, 0x06, 0xdd, 0x41, 0x47, 0x18, 0x62,
+ 0x1d, 0x57, 0xd0, 0xd6, 0xb6, 0x0f, 0x4b, 0xfc,
+ 0x79, 0x19, 0xf4, 0xd6, 0x37, 0x86, 0x18, 0x1f,
+ 0x98, 0x0d, 0x9e, 0x15, 0x2d, 0xb6, 0x9a, 0x8a,
+ 0x8c, 0x80, 0x22, 0x2f, 0x82, 0xc4, 0xc7, 0x36,
+ 0xfa, 0xfa, 0x07, 0xbd, 0xc2, 0x2a, 0xe2, 0xea,
+ 0x93, 0xc8, 0xb2, 0x90, 0x33, 0xf2, 0xee, 0x4b,
+ 0x1b, 0xf4, 0x37, 0x92, 0x13, 0xbb, 0xe2, 0xce,
+ 0xe3, 0x03, 0xcf, 0x07, 0x94, 0xab, 0x9a, 0xc9,
+ 0xff, 0x83, 0x69, 0x3a, 0xda, 0x2c, 0xd0, 0x47,
+ 0x3d, 0x6c, 0x1a, 0x60, 0x68, 0x47, 0xb9, 0x36,
+ 0x52, 0xdd, 0x16, 0xef, 0x6c, 0xbf, 0x54, 0x11,
+ 0x72, 0x62, 0xce, 0x8c, 0x9d, 0x90, 0xa0, 0x25,
+ 0x06, 0x92, 0x3e, 0x12, 0x7e, 0x1a, 0x1d, 0xe5,
+ 0xa2, 0x71, 0xce, 0x1c, 0x4c, 0x6a, 0x7c, 0xdc,
+ 0x3d, 0xe3, 0x6e, 0x48, 0x9d, 0xb3, 0x64, 0x7d,
+ 0x78, 0x40
+};
+static const u8 key67[] __initconst = {
+ 0xa9, 0x20, 0x75, 0x89, 0x7e, 0x37, 0x85, 0x48,
+ 0xa3, 0xfb, 0x7b, 0xe8, 0x30, 0xa7, 0xe3, 0x6e,
+ 0xa6, 0xc1, 0x71, 0x17, 0xc1, 0x6c, 0x9b, 0xc2,
+ 0xde, 0xf0, 0xa7, 0x19, 0xec, 0xce, 0xc6, 0x53
+};
+enum { nonce67 = 0x4adc4d1f968c8a10ULL };
+
+static const u8 input68[] __initconst = {
+ 0x99, 0xae, 0x72, 0xfb, 0x16, 0xe1, 0xf1, 0x59,
+ 0x43, 0x15, 0x4e, 0x33, 0xa0, 0x95, 0xe7, 0x6c,
+ 0x74, 0x24, 0x31, 0xca, 0x3b, 0x2e, 0xeb, 0xd7,
+ 0x11, 0xd8, 0xe0, 0x56, 0x92, 0x91, 0x61, 0x57,
+ 0xe2, 0x82, 0x9f, 0x8f, 0x37, 0xf5, 0x3d, 0x24,
+ 0x92, 0x9d, 0x87, 0x00, 0x8d, 0x89, 0xe0, 0x25,
+ 0x8b, 0xe4, 0x20, 0x5b, 0x8a, 0x26, 0x2c, 0x61,
+ 0x78, 0xb0, 0xa6, 0x3e, 0x82, 0x18, 0xcf, 0xdc,
+ 0x2d, 0x24, 0xdd, 0x81, 0x42, 0xc4, 0x95, 0xf0,
+ 0x48, 0x60, 0x71, 0xe3, 0xe3, 0xac, 0xec, 0xbe,
+ 0x98, 0x6b, 0x0c, 0xb5, 0x6a, 0xa9, 0xc8, 0x79,
+ 0x23, 0x2e, 0x38, 0x0b, 0x72, 0x88, 0x8c, 0xe7,
+ 0x71, 0x8b, 0x36, 0xe3, 0x58, 0x3d, 0x9c, 0xa0,
+ 0xa2, 0xea, 0xcf, 0x0c, 0x6a, 0x6c, 0x64, 0xdf,
+ 0x97, 0x21, 0x8f, 0x93, 0xfb, 0xba, 0xf3, 0x5a,
+ 0xd7, 0x8f, 0xa6, 0x37, 0x15, 0x50, 0x43, 0x02,
+ 0x46, 0x7f, 0x93, 0x46, 0x86, 0x31, 0xe2, 0xaa,
+ 0x24, 0xa8, 0x26, 0xae, 0xe6, 0xc0, 0x05, 0x73,
+ 0x0b, 0x4f, 0x7e, 0xed, 0x65, 0xeb, 0x56, 0x1e,
+ 0xb6, 0xb3, 0x0b, 0xc3, 0x0e, 0x31, 0x95, 0xa9,
+ 0x18, 0x4d, 0xaf, 0x38, 0xd7, 0xec, 0xc6, 0x44,
+ 0x72, 0x77, 0x4e, 0x25, 0x4b, 0x25, 0xdd, 0x1e,
+ 0x8c, 0xa2, 0xdf, 0xf6, 0x2a, 0x97, 0x1a, 0x88,
+ 0x2c, 0x8a, 0x5d, 0xfe, 0xe8, 0xfb, 0x35, 0xe8,
+ 0x0f, 0x2b, 0x7a, 0x18, 0x69, 0x43, 0x31, 0x1d,
+ 0x38, 0x6a, 0x62, 0x95, 0x0f, 0x20, 0x4b, 0xbb,
+ 0x97, 0x3c, 0xe0, 0x64, 0x2f, 0x52, 0xc9, 0x2d,
+ 0x4d, 0x9d, 0x54, 0x04, 0x3d, 0xc9, 0xea, 0xeb,
+ 0xd0, 0x86, 0x52, 0xff, 0x42, 0xe1, 0x0d, 0x7a,
+ 0xad, 0x88, 0xf9, 0x9b, 0x1e, 0x5e, 0x12, 0x27,
+ 0x95, 0x3e, 0x0c, 0x2c, 0x13, 0x00, 0x6f, 0x8e,
+ 0x93, 0x69, 0x0e, 0x01, 0x8c, 0xc1, 0xfd, 0xb3
+};
+static const u8 output68[] __initconst = {
+ 0x26, 0x3e, 0xf2, 0xb1, 0xf5, 0xef, 0x81, 0xa4,
+ 0xb7, 0x42, 0xd4, 0x26, 0x18, 0x4b, 0xdd, 0x6a,
+ 0x47, 0x15, 0xcb, 0x0e, 0x57, 0xdb, 0xa7, 0x29,
+ 0x7e, 0x7b, 0x3f, 0x47, 0x89, 0x57, 0xab, 0xea,
+ 0x14, 0x7b, 0xcf, 0x37, 0xdb, 0x1c, 0xe1, 0x11,
+ 0x77, 0xae, 0x2e, 0x4c, 0xd2, 0x08, 0x3f, 0xa6,
+ 0x62, 0x86, 0xa6, 0xb2, 0x07, 0xd5, 0x3f, 0x9b,
+ 0xdc, 0xc8, 0x50, 0x4b, 0x7b, 0xb9, 0x06, 0xe6,
+ 0xeb, 0xac, 0x98, 0x8c, 0x36, 0x0c, 0x1e, 0xb2,
+ 0xc8, 0xfb, 0x24, 0x60, 0x2c, 0x08, 0x17, 0x26,
+ 0x5b, 0xc8, 0xc2, 0xdf, 0x9c, 0x73, 0x67, 0x4a,
+ 0xdb, 0xcf, 0xd5, 0x2c, 0x2b, 0xca, 0x24, 0xcc,
+ 0xdb, 0xc9, 0xa8, 0xf2, 0x5d, 0x67, 0xdf, 0x5c,
+ 0x62, 0x0b, 0x58, 0xc0, 0x83, 0xde, 0x8b, 0xf6,
+ 0x15, 0x0a, 0xd6, 0x32, 0xd8, 0xf5, 0xf2, 0x5f,
+ 0x33, 0xce, 0x7e, 0xab, 0x76, 0xcd, 0x14, 0x91,
+ 0xd8, 0x41, 0x90, 0x93, 0xa1, 0xaf, 0xf3, 0x45,
+ 0x6c, 0x1b, 0x25, 0xbd, 0x48, 0x51, 0x6d, 0x15,
+ 0x47, 0xe6, 0x23, 0x50, 0x32, 0x69, 0x1e, 0xb5,
+ 0x94, 0xd3, 0x97, 0xba, 0xd7, 0x37, 0x4a, 0xba,
+ 0xb9, 0xcd, 0xfb, 0x96, 0x9a, 0x90, 0xe0, 0x37,
+ 0xf8, 0xdf, 0x91, 0x6c, 0x62, 0x13, 0x19, 0x21,
+ 0x4b, 0xa9, 0xf1, 0x12, 0x66, 0xe2, 0x74, 0xd7,
+ 0x81, 0xa0, 0x74, 0x8d, 0x7e, 0x7e, 0xc9, 0xb1,
+ 0x69, 0x8f, 0xed, 0xb3, 0xf6, 0x97, 0xcd, 0x72,
+ 0x78, 0x93, 0xd3, 0x54, 0x6b, 0x43, 0xac, 0x29,
+ 0xb4, 0xbc, 0x7d, 0xa4, 0x26, 0x4b, 0x7b, 0xab,
+ 0xd6, 0x67, 0x22, 0xff, 0x03, 0x92, 0xb6, 0xd4,
+ 0x96, 0x94, 0x5a, 0xe5, 0x02, 0x35, 0x77, 0xfa,
+ 0x3f, 0x54, 0x1d, 0xdd, 0x35, 0x39, 0xfe, 0x03,
+ 0xdd, 0x8e, 0x3c, 0x8c, 0xc2, 0x69, 0x2a, 0xb1,
+ 0xb7, 0xb3, 0xa1, 0x89, 0x84, 0xea, 0x16, 0xe2
+};
+static const u8 key68[] __initconst = {
+ 0xd2, 0x49, 0x7f, 0xd7, 0x49, 0x66, 0x0d, 0xb3,
+ 0x5a, 0x7e, 0x3c, 0xfc, 0x37, 0x83, 0x0e, 0xf7,
+ 0x96, 0xd8, 0xd6, 0x33, 0x79, 0x2b, 0x84, 0x53,
+ 0x06, 0xbc, 0x6c, 0x0a, 0x55, 0x84, 0xfe, 0xab
+};
+enum { nonce68 = 0x6a6df7ff0a20de06ULL };
+
+static const u8 input69[] __initconst = {
+ 0xf9, 0x18, 0x4c, 0xd2, 0x3f, 0xf7, 0x22, 0xd9,
+ 0x58, 0xb6, 0x3b, 0x38, 0x69, 0x79, 0xf4, 0x71,
+ 0x5f, 0x38, 0x52, 0x1f, 0x17, 0x6f, 0x6f, 0xd9,
+ 0x09, 0x2b, 0xfb, 0x67, 0xdc, 0xc9, 0xe8, 0x4a,
+ 0x70, 0x9f, 0x2e, 0x3c, 0x06, 0xe5, 0x12, 0x20,
+ 0x25, 0x29, 0xd0, 0xdc, 0x81, 0xc5, 0xc6, 0x0f,
+ 0xd2, 0xa8, 0x81, 0x15, 0x98, 0xb2, 0x71, 0x5a,
+ 0x9a, 0xe9, 0xfb, 0xaf, 0x0e, 0x5f, 0x8a, 0xf3,
+ 0x16, 0x4a, 0x47, 0xf2, 0x5c, 0xbf, 0xda, 0x52,
+ 0x9a, 0xa6, 0x36, 0xfd, 0xc6, 0xf7, 0x66, 0x00,
+ 0xcc, 0x6c, 0xd4, 0xb3, 0x07, 0x6d, 0xeb, 0xfe,
+ 0x92, 0x71, 0x25, 0xd0, 0xcf, 0x9c, 0xe8, 0x65,
+ 0x45, 0x10, 0xcf, 0x62, 0x74, 0x7d, 0xf2, 0x1b,
+ 0x57, 0xa0, 0xf1, 0x6b, 0xa4, 0xd5, 0xfa, 0x12,
+ 0x27, 0x5a, 0xf7, 0x99, 0xfc, 0xca, 0xf3, 0xb8,
+ 0x2c, 0x8b, 0xba, 0x28, 0x74, 0xde, 0x8f, 0x78,
+ 0xa2, 0x8c, 0xaf, 0x89, 0x4b, 0x05, 0xe2, 0xf3,
+ 0xf8, 0xd2, 0xef, 0xac, 0xa4, 0xc4, 0xe2, 0xe2,
+ 0x36, 0xbb, 0x5e, 0xae, 0xe6, 0x87, 0x3d, 0x88,
+ 0x9f, 0xb8, 0x11, 0xbb, 0xcf, 0x57, 0xce, 0xd0,
+ 0xba, 0x62, 0xf4, 0xf8, 0x9b, 0x95, 0x04, 0xc9,
+ 0xcf, 0x01, 0xe9, 0xf1, 0xc8, 0xc6, 0x22, 0xa4,
+ 0xf2, 0x8b, 0x2f, 0x24, 0x0a, 0xf5, 0x6e, 0xb7,
+ 0xd4, 0x2c, 0xb6, 0xf7, 0x5c, 0x97, 0x61, 0x0b,
+ 0xd9, 0xb5, 0x06, 0xcd, 0xed, 0x3e, 0x1f, 0xc5,
+ 0xb2, 0x6c, 0xa3, 0xea, 0xb8, 0xad, 0xa6, 0x42,
+ 0x88, 0x7a, 0x52, 0xd5, 0x64, 0xba, 0xb5, 0x20,
+ 0x10, 0xa0, 0x0f, 0x0d, 0xea, 0xef, 0x5a, 0x9b,
+ 0x27, 0xb8, 0xca, 0x20, 0x19, 0x6d, 0xa8, 0xc4,
+ 0x46, 0x04, 0xb3, 0xe8, 0xf8, 0x66, 0x1b, 0x0a,
+ 0xce, 0x76, 0x5d, 0x59, 0x58, 0x05, 0xee, 0x3e,
+ 0x3c, 0x86, 0x5b, 0x49, 0x1c, 0x72, 0x18, 0x01,
+ 0x62, 0x92, 0x0f, 0x3e, 0xd1, 0x57, 0x5e, 0x20,
+ 0x7b, 0xfb, 0x4d, 0x3c, 0xc5, 0x35, 0x43, 0x2f,
+ 0xb0, 0xc5, 0x7c, 0xe4, 0xa2, 0x84, 0x13, 0x77
+};
+static const u8 output69[] __initconst = {
+ 0xbb, 0x4a, 0x7f, 0x7c, 0xd5, 0x2f, 0x89, 0x06,
+ 0xec, 0x20, 0xf1, 0x9a, 0x11, 0x09, 0x14, 0x2e,
+ 0x17, 0x50, 0xf9, 0xd5, 0xf5, 0x48, 0x7c, 0x7a,
+ 0x55, 0xc0, 0x57, 0x03, 0xe3, 0xc4, 0xb2, 0xb7,
+ 0x18, 0x47, 0x95, 0xde, 0xaf, 0x80, 0x06, 0x3c,
+ 0x5a, 0xf2, 0xc3, 0x53, 0xe3, 0x29, 0x92, 0xf8,
+ 0xff, 0x64, 0x85, 0xb9, 0xf7, 0xd3, 0x80, 0xd2,
+ 0x0c, 0x5d, 0x7b, 0x57, 0x0c, 0x51, 0x79, 0x86,
+ 0xf3, 0x20, 0xd2, 0xb8, 0x6e, 0x0c, 0x5a, 0xce,
+ 0xeb, 0x88, 0x02, 0x8b, 0x82, 0x1b, 0x7f, 0xf5,
+ 0xde, 0x7f, 0x48, 0x48, 0xdf, 0xa0, 0x55, 0xc6,
+ 0x0c, 0x22, 0xa1, 0x80, 0x8d, 0x3b, 0xcb, 0x40,
+ 0x2d, 0x3d, 0x0b, 0xf2, 0xe0, 0x22, 0x13, 0x99,
+ 0xe1, 0xa7, 0x27, 0x68, 0x31, 0xe1, 0x24, 0x5d,
+ 0xd2, 0xee, 0x16, 0xc1, 0xd7, 0xa8, 0x14, 0x19,
+ 0x23, 0x72, 0x67, 0x27, 0xdc, 0x5e, 0xb9, 0xc7,
+ 0xd8, 0xe3, 0x55, 0x50, 0x40, 0x98, 0x7b, 0xe7,
+ 0x34, 0x1c, 0x3b, 0x18, 0x14, 0xd8, 0x62, 0xc1,
+ 0x93, 0x84, 0xf3, 0x5b, 0xdd, 0x9e, 0x1f, 0x3b,
+ 0x0b, 0xbc, 0x4e, 0x5b, 0x79, 0xa3, 0xca, 0x74,
+ 0x2a, 0x98, 0xe8, 0x04, 0x39, 0xef, 0xc6, 0x76,
+ 0x6d, 0xee, 0x9f, 0x67, 0x5b, 0x59, 0x3a, 0xe5,
+ 0xf2, 0x3b, 0xca, 0x89, 0xe8, 0x9b, 0x03, 0x3d,
+ 0x11, 0xd2, 0x4a, 0x70, 0xaf, 0x88, 0xb0, 0x94,
+ 0x96, 0x26, 0xab, 0x3c, 0xc1, 0xb8, 0xe4, 0xe7,
+ 0x14, 0x61, 0x64, 0x3a, 0x61, 0x08, 0x0f, 0xa9,
+ 0xce, 0x64, 0xb2, 0x40, 0xf8, 0x20, 0x3a, 0xa9,
+ 0x31, 0xbd, 0x7e, 0x16, 0xca, 0xf5, 0x62, 0x0f,
+ 0x91, 0x9f, 0x8e, 0x1d, 0xa4, 0x77, 0xf3, 0x87,
+ 0x61, 0xe8, 0x14, 0xde, 0x18, 0x68, 0x4e, 0x9d,
+ 0x73, 0xcd, 0x8a, 0xe4, 0x80, 0x84, 0x23, 0xaa,
+ 0x9d, 0x64, 0x1c, 0x80, 0x41, 0xca, 0x82, 0x40,
+ 0x94, 0x55, 0xe3, 0x28, 0xa1, 0x97, 0x71, 0xba,
+ 0xf2, 0x2c, 0x39, 0x62, 0x29, 0x56, 0xd0, 0xff,
+ 0xb2, 0x82, 0x20, 0x59, 0x1f, 0xc3, 0x64, 0x57
+};
+static const u8 key69[] __initconst = {
+ 0x19, 0x09, 0xe9, 0x7c, 0xd9, 0x02, 0x4a, 0x0c,
+ 0x52, 0x25, 0xad, 0x5c, 0x2e, 0x8d, 0x86, 0x10,
+ 0x85, 0x2b, 0xba, 0xa4, 0x44, 0x5b, 0x39, 0x3e,
+ 0x18, 0xaa, 0xce, 0x0e, 0xe2, 0x69, 0x3c, 0xcf
+};
+enum { nonce69 = 0xdb925a1948f0f060ULL };
+
+static const u8 input70[] __initconst = {
+ 0x10, 0xe7, 0x83, 0xcf, 0x42, 0x9f, 0xf2, 0x41,
+ 0xc7, 0xe4, 0xdb, 0xf9, 0xa3, 0x02, 0x1d, 0x8d,
+ 0x50, 0x81, 0x2c, 0x6b, 0x92, 0xe0, 0x4e, 0xea,
+ 0x26, 0x83, 0x2a, 0xd0, 0x31, 0xf1, 0x23, 0xf3,
+ 0x0e, 0x88, 0x14, 0x31, 0xf9, 0x01, 0x63, 0x59,
+ 0x21, 0xd1, 0x8b, 0xdd, 0x06, 0xd0, 0xc6, 0xab,
+ 0x91, 0x71, 0x82, 0x4d, 0xd4, 0x62, 0x37, 0x17,
+ 0xf9, 0x50, 0xf9, 0xb5, 0x74, 0xce, 0x39, 0x80,
+ 0x80, 0x78, 0xf8, 0xdc, 0x1c, 0xdb, 0x7c, 0x3d,
+ 0xd4, 0x86, 0x31, 0x00, 0x75, 0x7b, 0xd1, 0x42,
+ 0x9f, 0x1b, 0x97, 0x88, 0x0e, 0x14, 0x0e, 0x1e,
+ 0x7d, 0x7b, 0xc4, 0xd2, 0xf3, 0xc1, 0x6d, 0x17,
+ 0x5d, 0xc4, 0x75, 0x54, 0x0f, 0x38, 0x65, 0x89,
+ 0xd8, 0x7d, 0xab, 0xc9, 0xa7, 0x0a, 0x21, 0x0b,
+ 0x37, 0x12, 0x05, 0x07, 0xb5, 0x68, 0x32, 0x32,
+ 0xb9, 0xf8, 0x97, 0x17, 0x03, 0xed, 0x51, 0x8f,
+ 0x3d, 0x5a, 0xd0, 0x12, 0x01, 0x6e, 0x2e, 0x91,
+ 0x1c, 0xbe, 0x6b, 0xa3, 0xcc, 0x75, 0x62, 0x06,
+ 0x8e, 0x65, 0xbb, 0xe2, 0x29, 0x71, 0x4b, 0x89,
+ 0x6a, 0x9d, 0x85, 0x8c, 0x8c, 0xdf, 0x94, 0x95,
+ 0x23, 0x66, 0xf8, 0x92, 0xee, 0x56, 0xeb, 0xb3,
+ 0xeb, 0xd2, 0x4a, 0x3b, 0x77, 0x8a, 0x6e, 0xf6,
+ 0xca, 0xd2, 0x34, 0x00, 0xde, 0xbe, 0x1d, 0x7a,
+ 0x73, 0xef, 0x2b, 0x80, 0x56, 0x16, 0x29, 0xbf,
+ 0x6e, 0x33, 0xed, 0x0d, 0xe2, 0x02, 0x60, 0x74,
+ 0xe9, 0x0a, 0xbc, 0xd1, 0xc5, 0xe8, 0x53, 0x02,
+ 0x79, 0x0f, 0x25, 0x0c, 0xef, 0xab, 0xd3, 0xbc,
+ 0xb7, 0xfc, 0xf3, 0xb0, 0x34, 0xd1, 0x07, 0xd2,
+ 0x5a, 0x31, 0x1f, 0xec, 0x1f, 0x87, 0xed, 0xdd,
+ 0x6a, 0xc1, 0xe8, 0xb3, 0x25, 0x4c, 0xc6, 0x9b,
+ 0x91, 0x73, 0xec, 0x06, 0x73, 0x9e, 0x57, 0x65,
+ 0x32, 0x75, 0x11, 0x74, 0x6e, 0xa4, 0x7d, 0x0d,
+ 0x74, 0x9f, 0x51, 0x10, 0x10, 0x47, 0xc9, 0x71,
+ 0x6e, 0x97, 0xae, 0x44, 0x41, 0xef, 0x98, 0x78,
+ 0xf4, 0xc5, 0xbd, 0x5e, 0x00, 0xe5, 0xfd, 0xe2,
+ 0xbe, 0x8c, 0xc2, 0xae, 0xc2, 0xee, 0x59, 0xf6,
+ 0xcb, 0x20, 0x54, 0x84, 0xc3, 0x31, 0x7e, 0x67,
+ 0x71, 0xb6, 0x76, 0xbe, 0x81, 0x8f, 0x82, 0xad,
+ 0x01, 0x8f, 0xc4, 0x00, 0x04, 0x3d, 0x8d, 0x34,
+ 0xaa, 0xea, 0xc0, 0xea, 0x91, 0x42, 0xb6, 0xb8,
+ 0x43, 0xf3, 0x17, 0xb2, 0x73, 0x64, 0x82, 0x97,
+ 0xd5, 0xc9, 0x07, 0x77, 0xb1, 0x26, 0xe2, 0x00,
+ 0x6a, 0xae, 0x70, 0x0b, 0xbe, 0xe6, 0xb8, 0x42,
+ 0x81, 0x55, 0xf7, 0xb8, 0x96, 0x41, 0x9d, 0xd4,
+ 0x2c, 0x27, 0x00, 0xcc, 0x91, 0x28, 0x22, 0xa4,
+ 0x7b, 0x42, 0x51, 0x9e, 0xd6, 0xec, 0xf3, 0x6b,
+ 0x00, 0xff, 0x5c, 0xa2, 0xac, 0x47, 0x33, 0x2d,
+ 0xf8, 0x11, 0x65, 0x5f, 0x4d, 0x79, 0x8b, 0x4f,
+ 0xad, 0xf0, 0x9d, 0xcd, 0xb9, 0x7b, 0x08, 0xf7,
+ 0x32, 0x51, 0xfa, 0x39, 0xaa, 0x78, 0x05, 0xb1,
+ 0xf3, 0x5d, 0xe8, 0x7c, 0x8e, 0x4f, 0xa2, 0xe0,
+ 0x98, 0x0c, 0xb2, 0xa7, 0xf0, 0x35, 0x8e, 0x70,
+ 0x7c, 0x82, 0xf3, 0x1b, 0x26, 0x28, 0x12, 0xe5,
+ 0x23, 0x57, 0xe4, 0xb4, 0x9b, 0x00, 0x39, 0x97,
+ 0xef, 0x7c, 0x46, 0x9b, 0x34, 0x6b, 0xe7, 0x0e,
+ 0xa3, 0x2a, 0x18, 0x11, 0x64, 0xc6, 0x7c, 0x8b,
+ 0x06, 0x02, 0xf5, 0x69, 0x76, 0xf9, 0xaa, 0x09,
+ 0x5f, 0x68, 0xf8, 0x4a, 0x79, 0x58, 0xec, 0x37,
+ 0xcf, 0x3a, 0xcc, 0x97, 0x70, 0x1d, 0x3e, 0x52,
+ 0x18, 0x0a, 0xad, 0x28, 0x5b, 0x3b, 0xe9, 0x03,
+ 0x84, 0xe9, 0x68, 0x50, 0xce, 0xc4, 0xbc, 0x3e,
+ 0x21, 0xad, 0x63, 0xfe, 0xc6, 0xfd, 0x6e, 0x69,
+ 0x84, 0xa9, 0x30, 0xb1, 0x7a, 0xc4, 0x31, 0x10,
+ 0xc1, 0x1f, 0x6e, 0xeb, 0xa5, 0xa6, 0x01
+};
+static const u8 output70[] __initconst = {
+ 0x0f, 0x93, 0x2a, 0x20, 0xb3, 0x87, 0x2d, 0xce,
+ 0xd1, 0x3b, 0x30, 0xfd, 0x06, 0x6d, 0x0a, 0xaa,
+ 0x3e, 0xc4, 0x29, 0x02, 0x8a, 0xde, 0xa6, 0x4b,
+ 0x45, 0x1b, 0x4f, 0x25, 0x59, 0xd5, 0x56, 0x6a,
+ 0x3b, 0x37, 0xbd, 0x3e, 0x47, 0x12, 0x2c, 0x4e,
+ 0x60, 0x5f, 0x05, 0x75, 0x61, 0x23, 0x05, 0x74,
+ 0xcb, 0xfc, 0x5a, 0xb3, 0xac, 0x5c, 0x3d, 0xab,
+ 0x52, 0x5f, 0x05, 0xbc, 0x57, 0xc0, 0x7e, 0xcf,
+ 0x34, 0x5d, 0x7f, 0x41, 0xa3, 0x17, 0x78, 0xd5,
+ 0x9f, 0xec, 0x0f, 0x1e, 0xf9, 0xfe, 0xa3, 0xbd,
+ 0x28, 0xb0, 0xba, 0x4d, 0x84, 0xdb, 0xae, 0x8f,
+ 0x1d, 0x98, 0xb7, 0xdc, 0xf9, 0xad, 0x55, 0x9c,
+ 0x89, 0xfe, 0x9b, 0x9c, 0xa9, 0x89, 0xf6, 0x97,
+ 0x9c, 0x3f, 0x09, 0x3e, 0xc6, 0x02, 0xc2, 0x55,
+ 0x58, 0x09, 0x54, 0x66, 0xe4, 0x36, 0x81, 0x35,
+ 0xca, 0x88, 0x17, 0x89, 0x80, 0x24, 0x2b, 0x21,
+ 0x89, 0xee, 0x45, 0x5a, 0xe7, 0x1f, 0xd5, 0xa5,
+ 0x16, 0xa4, 0xda, 0x70, 0x7e, 0xe9, 0x4f, 0x24,
+ 0x61, 0x97, 0xab, 0xa0, 0xe0, 0xe7, 0xb8, 0x5c,
+ 0x0f, 0x25, 0x17, 0x37, 0x75, 0x12, 0xb5, 0x40,
+ 0xde, 0x1c, 0x0d, 0x8a, 0x77, 0x62, 0x3c, 0x86,
+ 0xd9, 0x70, 0x2e, 0x96, 0x30, 0xd2, 0x55, 0xb3,
+ 0x6b, 0xc3, 0xf2, 0x9c, 0x47, 0xf3, 0x3a, 0x24,
+ 0x52, 0xc6, 0x38, 0xd8, 0x22, 0xb3, 0x0c, 0xfd,
+ 0x2f, 0xa3, 0x3c, 0xb5, 0xe8, 0x26, 0xe1, 0xa3,
+ 0xad, 0xb0, 0x82, 0x17, 0xc1, 0x53, 0xb8, 0x34,
+ 0x48, 0xee, 0x39, 0xae, 0x51, 0x43, 0xec, 0x82,
+ 0xce, 0x87, 0xc6, 0x76, 0xb9, 0x76, 0xd3, 0x53,
+ 0xfe, 0x49, 0x24, 0x7d, 0x02, 0x42, 0x2b, 0x72,
+ 0xfb, 0xcb, 0xd8, 0x96, 0x02, 0xc6, 0x9a, 0x20,
+ 0xf3, 0x5a, 0x67, 0xe8, 0x13, 0xf8, 0xb2, 0xcb,
+ 0xa2, 0xec, 0x18, 0x20, 0x4a, 0xb0, 0x73, 0x53,
+ 0x21, 0xb0, 0x77, 0x53, 0xd8, 0x76, 0xa1, 0x30,
+ 0x17, 0x72, 0x2e, 0x33, 0x5f, 0x33, 0x6b, 0x28,
+ 0xfb, 0xb0, 0xf4, 0xec, 0x8e, 0xed, 0x20, 0x7d,
+ 0x57, 0x8c, 0x74, 0x28, 0x64, 0x8b, 0xeb, 0x59,
+ 0x38, 0x3f, 0xe7, 0x83, 0x2e, 0xe5, 0x64, 0x4d,
+ 0x5c, 0x1f, 0xe1, 0x3b, 0xd9, 0x84, 0xdb, 0xc9,
+ 0xec, 0xd8, 0xc1, 0x7c, 0x1f, 0x1b, 0x68, 0x35,
+ 0xc6, 0x34, 0x10, 0xef, 0x19, 0xc9, 0x0a, 0xd6,
+ 0x43, 0x7f, 0xa6, 0xcb, 0x9d, 0xf4, 0xf0, 0x16,
+ 0xb1, 0xb1, 0x96, 0x64, 0xec, 0x8d, 0x22, 0x4c,
+ 0x4b, 0xe8, 0x1a, 0xba, 0x6f, 0xb7, 0xfc, 0xa5,
+ 0x69, 0x3e, 0xad, 0x78, 0x79, 0x19, 0xb5, 0x04,
+ 0x69, 0xe5, 0x3f, 0xff, 0x60, 0x8c, 0xda, 0x0b,
+ 0x7b, 0xf7, 0xe7, 0xe6, 0x29, 0x3a, 0x85, 0xba,
+ 0xb5, 0xb0, 0x35, 0xbd, 0x38, 0xce, 0x34, 0x5e,
+ 0xf2, 0xdc, 0xd1, 0x8f, 0xc3, 0x03, 0x24, 0xa2,
+ 0x03, 0xf7, 0x4e, 0x49, 0x5b, 0xcf, 0x6d, 0xb0,
+ 0xeb, 0xe3, 0x30, 0x28, 0xd5, 0x5b, 0x82, 0x5f,
+ 0xe4, 0x7c, 0x1e, 0xec, 0xd2, 0x39, 0xf9, 0x6f,
+ 0x2e, 0xb3, 0xcd, 0x01, 0xb1, 0x67, 0xaa, 0xea,
+ 0xaa, 0xb3, 0x63, 0xaf, 0xd9, 0xb2, 0x1f, 0xba,
+ 0x05, 0x20, 0xeb, 0x19, 0x32, 0xf0, 0x6c, 0x3f,
+ 0x40, 0xcc, 0x93, 0xb3, 0xd8, 0x25, 0xa6, 0xe4,
+ 0xce, 0xd7, 0x7e, 0x48, 0x99, 0x65, 0x7f, 0x86,
+ 0xc5, 0xd4, 0x79, 0x6b, 0xab, 0x43, 0xb8, 0x6b,
+ 0xf1, 0x2f, 0xea, 0x4c, 0x5e, 0xf0, 0x3b, 0xb4,
+ 0xb8, 0xb0, 0x94, 0x0c, 0x6b, 0xe7, 0x22, 0x93,
+ 0xaa, 0x01, 0xcb, 0xf1, 0x11, 0x60, 0xf6, 0x69,
+ 0xcf, 0x14, 0xde, 0xfb, 0x90, 0x05, 0x27, 0x0c,
+ 0x1a, 0x9e, 0xf0, 0xb4, 0xc6, 0xa1, 0xe8, 0xdd,
+ 0xd0, 0x4c, 0x25, 0x4f, 0x9c, 0xb7, 0xb1, 0xb0,
+ 0x21, 0xdb, 0x87, 0x09, 0x03, 0xf2, 0xb3
+};
+static const u8 key70[] __initconst = {
+ 0x3b, 0x5b, 0x59, 0x36, 0x44, 0xd1, 0xba, 0x71,
+ 0x55, 0x87, 0x4d, 0x62, 0x3d, 0xc2, 0xfc, 0xaa,
+ 0x3f, 0x4e, 0x1a, 0xe4, 0xca, 0x09, 0xfc, 0x6a,
+ 0xb2, 0xd6, 0x5d, 0x79, 0xf9, 0x1a, 0x91, 0xa7
+};
+enum { nonce70 = 0x3fd6786dd147a85ULL };
+
+static const u8 input71[] __initconst = {
+ 0x18, 0x78, 0xd6, 0x79, 0xe4, 0x9a, 0x6c, 0x73,
+ 0x17, 0xd4, 0x05, 0x0f, 0x1e, 0x9f, 0xd9, 0x2b,
+ 0x86, 0x48, 0x7d, 0xf4, 0xd9, 0x1c, 0x76, 0xfc,
+ 0x8e, 0x22, 0x34, 0xe1, 0x48, 0x4a, 0x8d, 0x79,
+ 0xb7, 0xbb, 0x88, 0xab, 0x90, 0xde, 0xc5, 0xb4,
+ 0xb4, 0xe7, 0x85, 0x49, 0xda, 0x57, 0xeb, 0xc9,
+ 0xcd, 0x21, 0xfc, 0x45, 0x6e, 0x32, 0x67, 0xf2,
+ 0x4f, 0xa6, 0x54, 0xe5, 0x20, 0xed, 0xcf, 0xc6,
+ 0x62, 0x25, 0x8e, 0x00, 0xf8, 0x6b, 0xa2, 0x80,
+ 0xac, 0x88, 0xa6, 0x59, 0x27, 0x83, 0x95, 0x11,
+ 0x3f, 0x70, 0x5e, 0x3f, 0x11, 0xfb, 0x26, 0xbf,
+ 0xe1, 0x48, 0x75, 0xf9, 0x86, 0xbf, 0xa6, 0x5d,
+ 0x15, 0x61, 0x66, 0xbf, 0x78, 0x8f, 0x6b, 0x9b,
+ 0xda, 0x98, 0xb7, 0x19, 0xe2, 0xf2, 0xa3, 0x9c,
+ 0x7c, 0x6a, 0x9a, 0xd8, 0x3d, 0x4c, 0x2c, 0xe1,
+ 0x09, 0xb4, 0x28, 0x82, 0x4e, 0xab, 0x0c, 0x75,
+ 0x63, 0xeb, 0xbc, 0xd0, 0x71, 0xa2, 0x73, 0x85,
+ 0xed, 0x53, 0x7a, 0x3f, 0x68, 0x9f, 0xd0, 0xa9,
+ 0x00, 0x5a, 0x9e, 0x80, 0x55, 0x00, 0xe6, 0xae,
+ 0x0c, 0x03, 0x40, 0xed, 0xfc, 0x68, 0x4a, 0xb7,
+ 0x1e, 0x09, 0x65, 0x30, 0x5a, 0x3d, 0x97, 0x4d,
+ 0x5e, 0x51, 0x8e, 0xda, 0xc3, 0x55, 0x8c, 0xfb,
+ 0xcf, 0x83, 0x05, 0x35, 0x0d, 0x08, 0x1b, 0xf3,
+ 0x3a, 0x57, 0x96, 0xac, 0x58, 0x8b, 0xfa, 0x00,
+ 0x49, 0x15, 0x78, 0xd2, 0x4b, 0xed, 0xb8, 0x59,
+ 0x78, 0x9b, 0x7f, 0xaa, 0xfc, 0xe7, 0x46, 0xdc,
+ 0x7b, 0x34, 0xd0, 0x34, 0xe5, 0x10, 0xff, 0x4d,
+ 0x5a, 0x4d, 0x60, 0xa7, 0x16, 0x54, 0xc4, 0xfd,
+ 0xca, 0x5d, 0x68, 0xc7, 0x4a, 0x01, 0x8d, 0x7f,
+ 0x74, 0x5d, 0xff, 0xb8, 0x37, 0x15, 0x62, 0xfa,
+ 0x44, 0x45, 0xcf, 0x77, 0x3b, 0x1d, 0xb2, 0xd2,
+ 0x0d, 0x42, 0x00, 0x39, 0x68, 0x1f, 0xcc, 0x89,
+ 0x73, 0x5d, 0xa9, 0x2e, 0xfd, 0x58, 0x62, 0xca,
+ 0x35, 0x8e, 0x70, 0x70, 0xaa, 0x6e, 0x14, 0xe9,
+ 0xa4, 0xe2, 0x10, 0x66, 0x71, 0xdc, 0x4c, 0xfc,
+ 0xa9, 0xdc, 0x8f, 0x57, 0x4d, 0xc5, 0xac, 0xd7,
+ 0xa9, 0xf3, 0xf3, 0xa1, 0xff, 0x62, 0xa0, 0x8f,
+ 0xe4, 0x96, 0x3e, 0xcb, 0x9f, 0x76, 0x42, 0x39,
+ 0x1f, 0x24, 0xfd, 0xfd, 0x79, 0xe8, 0x27, 0xdf,
+ 0xa8, 0xf6, 0x33, 0x8b, 0x31, 0x59, 0x69, 0xcf,
+ 0x6a, 0xef, 0x89, 0x4d, 0xa7, 0xf6, 0x7e, 0x97,
+ 0x14, 0xbd, 0xda, 0xdd, 0xb4, 0x84, 0x04, 0x24,
+ 0xe0, 0x17, 0xe1, 0x0f, 0x1f, 0x8a, 0x6a, 0x71,
+ 0x74, 0x41, 0xdc, 0x59, 0x5c, 0x8f, 0x01, 0x25,
+ 0x92, 0xf0, 0x2e, 0x15, 0x62, 0x71, 0x9a, 0x9f,
+ 0x87, 0xdf, 0x62, 0x49, 0x7f, 0x86, 0x62, 0xfc,
+ 0x20, 0x84, 0xd7, 0xe3, 0x3a, 0xd9, 0x37, 0x85,
+ 0xb7, 0x84, 0x5a, 0xf9, 0xed, 0x21, 0x32, 0x94,
+ 0x3e, 0x04, 0xe7, 0x8c, 0x46, 0x76, 0x21, 0x67,
+ 0xf6, 0x95, 0x64, 0x92, 0xb7, 0x15, 0xf6, 0xe3,
+ 0x41, 0x27, 0x9d, 0xd7, 0xe3, 0x79, 0x75, 0x92,
+ 0xd0, 0xc1, 0xf3, 0x40, 0x92, 0x08, 0xde, 0x90,
+ 0x22, 0x82, 0xb2, 0x69, 0xae, 0x1a, 0x35, 0x11,
+ 0x89, 0xc8, 0x06, 0x82, 0x95, 0x23, 0x44, 0x08,
+ 0x22, 0xf2, 0x71, 0x73, 0x1b, 0x88, 0x11, 0xcf,
+ 0x1c, 0x7e, 0x8a, 0x2e, 0xdc, 0x79, 0x57, 0xce,
+ 0x1f, 0xe7, 0x6c, 0x07, 0xd8, 0x06, 0xbe, 0xec,
+ 0xa3, 0xcf, 0xf9, 0x68, 0xa5, 0xb8, 0xf0, 0xe3,
+ 0x3f, 0x01, 0x92, 0xda, 0xf1, 0xa0, 0x2d, 0x7b,
+ 0xab, 0x57, 0x58, 0x2a, 0xaf, 0xab, 0xbd, 0xf2,
+ 0xe5, 0xaf, 0x7e, 0x1f, 0x46, 0x24, 0x9e, 0x20,
+ 0x22, 0x0f, 0x84, 0x4c, 0xb7, 0xd8, 0x03, 0xe8,
+ 0x09, 0x73, 0x6c, 0xc6, 0x9b, 0x90, 0xe0, 0xdb,
+ 0xf2, 0x71, 0xba, 0xad, 0xb3, 0xec, 0xda, 0x7a
+};
+static const u8 output71[] __initconst = {
+ 0x28, 0xc5, 0x9b, 0x92, 0xf9, 0x21, 0x4f, 0xbb,
+ 0xef, 0x3b, 0xf0, 0xf5, 0x3a, 0x6d, 0x7f, 0xd6,
+ 0x6a, 0x8d, 0xa1, 0x01, 0x5c, 0x62, 0x20, 0x8b,
+ 0x5b, 0x39, 0xd5, 0xd3, 0xc2, 0xf6, 0x9d, 0x5e,
+ 0xcc, 0xe1, 0xa2, 0x61, 0x16, 0xe2, 0xce, 0xe9,
+ 0x86, 0xd0, 0xfc, 0xce, 0x9a, 0x28, 0x27, 0xc4,
+ 0x0c, 0xb9, 0xaa, 0x8d, 0x48, 0xdb, 0xbf, 0x82,
+ 0x7d, 0xd0, 0x35, 0xc4, 0x06, 0x34, 0xb4, 0x19,
+ 0x51, 0x73, 0xf4, 0x7a, 0xf4, 0xfd, 0xe9, 0x1d,
+ 0xdc, 0x0f, 0x7e, 0xf7, 0x96, 0x03, 0xe3, 0xb1,
+ 0x2e, 0x22, 0x59, 0xb7, 0x6d, 0x1c, 0x97, 0x8c,
+ 0xd7, 0x31, 0x08, 0x26, 0x4c, 0x6d, 0xc6, 0x14,
+ 0xa5, 0xeb, 0x45, 0x6a, 0x88, 0xa3, 0xa2, 0x36,
+ 0xc4, 0x35, 0xb1, 0x5a, 0xa0, 0xad, 0xf7, 0x06,
+ 0x9b, 0x5d, 0xc1, 0x15, 0xc1, 0xce, 0x0a, 0xb0,
+ 0x57, 0x2e, 0x3f, 0x6f, 0x0d, 0x10, 0xd9, 0x11,
+ 0x2c, 0x9c, 0xad, 0x2d, 0xa5, 0x81, 0xfb, 0x4e,
+ 0x8f, 0xd5, 0x32, 0x4e, 0xaf, 0x5c, 0xc1, 0x86,
+ 0xde, 0x56, 0x5a, 0x33, 0x29, 0xf7, 0x67, 0xc6,
+ 0x37, 0x6f, 0xb2, 0x37, 0x4e, 0xd4, 0x69, 0x79,
+ 0xaf, 0xd5, 0x17, 0x79, 0xe0, 0xba, 0x62, 0xa3,
+ 0x68, 0xa4, 0x87, 0x93, 0x8d, 0x7e, 0x8f, 0xa3,
+ 0x9c, 0xef, 0xda, 0xe3, 0xa5, 0x1f, 0xcd, 0x30,
+ 0xa6, 0x55, 0xac, 0x4c, 0x69, 0x74, 0x02, 0xc7,
+ 0x5d, 0x95, 0x81, 0x4a, 0x68, 0x11, 0xd3, 0xa9,
+ 0x98, 0xb1, 0x0b, 0x0d, 0xae, 0x40, 0x86, 0x65,
+ 0xbf, 0xcc, 0x2d, 0xef, 0x57, 0xca, 0x1f, 0xe4,
+ 0x34, 0x4e, 0xa6, 0x5e, 0x82, 0x6e, 0x61, 0xad,
+ 0x0b, 0x3c, 0xf8, 0xeb, 0x01, 0x43, 0x7f, 0x87,
+ 0xa2, 0xa7, 0x6a, 0xe9, 0x62, 0x23, 0x24, 0x61,
+ 0xf1, 0xf7, 0x36, 0xdb, 0x10, 0xe5, 0x57, 0x72,
+ 0x3a, 0xc2, 0xae, 0xcc, 0x75, 0xc7, 0x80, 0x05,
+ 0x0a, 0x5c, 0x4c, 0x95, 0xda, 0x02, 0x01, 0x14,
+ 0x06, 0x6b, 0x5c, 0x65, 0xc2, 0xb8, 0x4a, 0xd6,
+ 0xd3, 0xb4, 0xd8, 0x12, 0x52, 0xb5, 0x60, 0xd3,
+ 0x8e, 0x5f, 0x5c, 0x76, 0x33, 0x7a, 0x05, 0xe5,
+ 0xcb, 0xef, 0x4f, 0x89, 0xf1, 0xba, 0x32, 0x6f,
+ 0x33, 0xcd, 0x15, 0x8d, 0xa3, 0x0c, 0x3f, 0x63,
+ 0x11, 0xe7, 0x0e, 0xe0, 0x00, 0x01, 0xe9, 0xe8,
+ 0x8e, 0x36, 0x34, 0x8d, 0x96, 0xb5, 0x03, 0xcf,
+ 0x55, 0x62, 0x49, 0x7a, 0x34, 0x44, 0xa5, 0xee,
+ 0x8c, 0x46, 0x06, 0x22, 0xab, 0x1d, 0x53, 0x9c,
+ 0xa1, 0xf9, 0x67, 0x18, 0x57, 0x89, 0xf9, 0xc2,
+ 0xd1, 0x7e, 0xbe, 0x36, 0x40, 0xcb, 0xe9, 0x04,
+ 0xde, 0xb1, 0x3b, 0x29, 0x52, 0xc5, 0x9a, 0xb5,
+ 0xa2, 0x7c, 0x7b, 0xfe, 0xe5, 0x92, 0x73, 0xea,
+ 0xea, 0x7b, 0xba, 0x0a, 0x8c, 0x88, 0x15, 0xe6,
+ 0x53, 0xbf, 0x1c, 0x33, 0xf4, 0x9b, 0x9a, 0x5e,
+ 0x8d, 0xae, 0x60, 0xdc, 0xcb, 0x5d, 0xfa, 0xbe,
+ 0x06, 0xc3, 0x3f, 0x06, 0xe7, 0x00, 0x40, 0x7b,
+ 0xaa, 0x94, 0xfa, 0x6d, 0x1f, 0xe4, 0xc5, 0xa9,
+ 0x1b, 0x5f, 0x36, 0xea, 0x5a, 0xdd, 0xa5, 0x48,
+ 0x6a, 0x55, 0xd2, 0x47, 0x28, 0xbf, 0x96, 0xf1,
+ 0x9f, 0xb6, 0x11, 0x4b, 0xd3, 0x44, 0x7d, 0x48,
+ 0x41, 0x61, 0xdb, 0x12, 0xd4, 0xc2, 0x59, 0x82,
+ 0x4c, 0x47, 0x5c, 0x04, 0xf6, 0x7b, 0xd3, 0x92,
+ 0x2e, 0xe8, 0x40, 0xef, 0x15, 0x32, 0x97, 0xdc,
+ 0x35, 0x4c, 0x6e, 0xa4, 0x97, 0xe9, 0x24, 0xde,
+ 0x63, 0x8b, 0xb1, 0x6b, 0x48, 0xbb, 0x46, 0x1f,
+ 0x84, 0xd6, 0x17, 0xb0, 0x5a, 0x4a, 0x4e, 0xd5,
+ 0x31, 0xd7, 0xcf, 0xa0, 0x39, 0xc6, 0x2e, 0xfc,
+ 0xa6, 0xa3, 0xd3, 0x0f, 0xa4, 0x28, 0xac, 0xb2,
+ 0xf4, 0x48, 0x8d, 0x50, 0xa5, 0x1c, 0x44, 0x5d,
+ 0x6e, 0x38, 0xb7, 0x2b, 0x8a, 0x45, 0xa7, 0x3d
+};
+static const u8 key71[] __initconst = {
+ 0x8b, 0x68, 0xc4, 0xb7, 0x0d, 0x81, 0xef, 0x52,
+ 0x1e, 0x05, 0x96, 0x72, 0x62, 0x89, 0x27, 0x83,
+ 0xd0, 0xc7, 0x33, 0x6d, 0xf2, 0xcc, 0x69, 0xf9,
+ 0x23, 0xae, 0x99, 0xb1, 0xd1, 0x05, 0x4e, 0x54
+};
+enum { nonce71 = 0x983f03656d64b5f6ULL };
+
+static const u8 input72[] __initconst = {
+ 0x6b, 0x09, 0xc9, 0x57, 0x3d, 0x79, 0x04, 0x8c,
+ 0x65, 0xad, 0x4a, 0x0f, 0xa1, 0x31, 0x3a, 0xdd,
+ 0x14, 0x8e, 0xe8, 0xfe, 0xbf, 0x42, 0x87, 0x98,
+ 0x2e, 0x8d, 0x83, 0xa3, 0xf8, 0x55, 0x3d, 0x84,
+ 0x1e, 0x0e, 0x05, 0x4a, 0x38, 0x9e, 0xe7, 0xfe,
+ 0xd0, 0x4d, 0x79, 0x74, 0x3a, 0x0b, 0x9b, 0xe1,
+ 0xfd, 0x51, 0x84, 0x4e, 0xb2, 0x25, 0xe4, 0x64,
+ 0x4c, 0xda, 0xcf, 0x46, 0xec, 0xba, 0x12, 0xeb,
+ 0x5a, 0x33, 0x09, 0x6e, 0x78, 0x77, 0x8f, 0x30,
+ 0xb1, 0x7d, 0x3f, 0x60, 0x8c, 0xf2, 0x1d, 0x8e,
+ 0xb4, 0x70, 0xa2, 0x90, 0x7c, 0x79, 0x1a, 0x2c,
+ 0xf6, 0x28, 0x79, 0x7c, 0x53, 0xc5, 0xfa, 0xcc,
+ 0x65, 0x9b, 0xe1, 0x51, 0xd1, 0x7f, 0x1d, 0xc4,
+ 0xdb, 0xd4, 0xd9, 0x04, 0x61, 0x7d, 0xbe, 0x12,
+ 0xfc, 0xcd, 0xaf, 0xe4, 0x0f, 0x9c, 0x20, 0xb5,
+ 0x22, 0x40, 0x18, 0xda, 0xe4, 0xda, 0x8c, 0x2d,
+ 0x84, 0xe3, 0x5f, 0x53, 0x17, 0xed, 0x78, 0xdc,
+ 0x2f, 0xe8, 0x31, 0xc7, 0xe6, 0x39, 0x71, 0x40,
+ 0xb4, 0x0f, 0xc9, 0xa9, 0x7e, 0x78, 0x87, 0xc1,
+ 0x05, 0x78, 0xbb, 0x01, 0xf2, 0x8f, 0x33, 0xb0,
+ 0x6e, 0x84, 0xcd, 0x36, 0x33, 0x5c, 0x5b, 0x8e,
+ 0xf1, 0xac, 0x30, 0xfe, 0x33, 0xec, 0x08, 0xf3,
+ 0x7e, 0xf2, 0xf0, 0x4c, 0xf2, 0xad, 0xd8, 0xc1,
+ 0xd4, 0x4e, 0x87, 0x06, 0xd4, 0x75, 0xe7, 0xe3,
+ 0x09, 0xd3, 0x4d, 0xe3, 0x21, 0x32, 0xba, 0xb4,
+ 0x68, 0x68, 0xcb, 0x4c, 0xa3, 0x1e, 0xb3, 0x87,
+ 0x7b, 0xd3, 0x0c, 0x63, 0x37, 0x71, 0x79, 0xfb,
+ 0x58, 0x36, 0x57, 0x0f, 0x34, 0x1d, 0xc1, 0x42,
+ 0x02, 0x17, 0xe7, 0xed, 0xe8, 0xe7, 0x76, 0xcb,
+ 0x42, 0xc4, 0x4b, 0xe2, 0xb2, 0x5e, 0x42, 0xd5,
+ 0xec, 0x9d, 0xc1, 0x32, 0x71, 0xe4, 0xeb, 0x10,
+ 0x68, 0x1a, 0x6e, 0x99, 0x8e, 0x73, 0x12, 0x1f,
+ 0x97, 0x0c, 0x9e, 0xcd, 0x02, 0x3e, 0x4c, 0xa0,
+ 0xf2, 0x8d, 0xe5, 0x44, 0xca, 0x6d, 0xfe, 0x07,
+ 0xe3, 0xe8, 0x9b, 0x76, 0xc1, 0x6d, 0xb7, 0x6e,
+ 0x0d, 0x14, 0x00, 0x6f, 0x8a, 0xfd, 0x43, 0xc6,
+ 0x43, 0xa5, 0x9c, 0x02, 0x47, 0x10, 0xd4, 0xb4,
+ 0x9b, 0x55, 0x67, 0xc8, 0x7f, 0xc1, 0x8a, 0x1f,
+ 0x1e, 0xd1, 0xbc, 0x99, 0x5d, 0x50, 0x4f, 0x89,
+ 0xf1, 0xe6, 0x5d, 0x91, 0x40, 0xdc, 0x20, 0x67,
+ 0x56, 0xc2, 0xef, 0xbd, 0x2c, 0xa2, 0x99, 0x38,
+ 0xe0, 0x45, 0xec, 0x44, 0x05, 0x52, 0x65, 0x11,
+ 0xfc, 0x3b, 0x19, 0xcb, 0x71, 0xc2, 0x8e, 0x0e,
+ 0x03, 0x2a, 0x03, 0x3b, 0x63, 0x06, 0x31, 0x9a,
+ 0xac, 0x53, 0x04, 0x14, 0xd4, 0x80, 0x9d, 0x6b,
+ 0x42, 0x7e, 0x7e, 0x4e, 0xdc, 0xc7, 0x01, 0x49,
+ 0x9f, 0xf5, 0x19, 0x86, 0x13, 0x28, 0x2b, 0xa6,
+ 0xa6, 0xbe, 0xa1, 0x7e, 0x71, 0x05, 0x00, 0xff,
+ 0x59, 0x2d, 0xb6, 0x63, 0xf0, 0x1e, 0x2e, 0x69,
+ 0x9b, 0x85, 0xf1, 0x1e, 0x8a, 0x64, 0x39, 0xab,
+ 0x00, 0x12, 0xe4, 0x33, 0x4b, 0xb5, 0xd8, 0xb3,
+ 0x6b, 0x5b, 0x8b, 0x5c, 0xd7, 0x6f, 0x23, 0xcf,
+ 0x3f, 0x2e, 0x5e, 0x47, 0xb9, 0xb8, 0x1f, 0xf0,
+ 0x1d, 0xda, 0xe7, 0x4f, 0x6e, 0xab, 0xc3, 0x36,
+ 0xb4, 0x74, 0x6b, 0xeb, 0xc7, 0x5d, 0x91, 0xe5,
+ 0xda, 0xf2, 0xc2, 0x11, 0x17, 0x48, 0xf8, 0x9c,
+ 0xc9, 0x8b, 0xc1, 0xa2, 0xf4, 0xcd, 0x16, 0xf8,
+ 0x27, 0xd9, 0x6c, 0x6f, 0xb5, 0x8f, 0x77, 0xca,
+ 0x1b, 0xd8, 0xef, 0x84, 0x68, 0x71, 0x53, 0xc1,
+ 0x43, 0x0f, 0x9f, 0x98, 0xae, 0x7e, 0x31, 0xd2,
+ 0x98, 0xfb, 0x20, 0xa2, 0xad, 0x00, 0x10, 0x83,
+ 0x00, 0x8b, 0xeb, 0x56, 0xd2, 0xc4, 0xcc, 0x7f,
+ 0x2f, 0x4e, 0xfa, 0x88, 0x13, 0xa4, 0x2c, 0xde,
+ 0x6b, 0x77, 0x86, 0x10, 0x6a, 0xab, 0x43, 0x0a,
+ 0x02
+};
+static const u8 output72[] __initconst = {
+ 0x42, 0x89, 0xa4, 0x80, 0xd2, 0xcb, 0x5f, 0x7f,
+ 0x2a, 0x1a, 0x23, 0x00, 0xa5, 0x6a, 0x95, 0xa3,
+ 0x9a, 0x41, 0xa1, 0xd0, 0x2d, 0x1e, 0xd6, 0x13,
+ 0x34, 0x40, 0x4e, 0x7f, 0x1a, 0xbe, 0xa0, 0x3d,
+ 0x33, 0x9c, 0x56, 0x2e, 0x89, 0x25, 0x45, 0xf9,
+ 0xf0, 0xba, 0x9c, 0x6d, 0xd1, 0xd1, 0xde, 0x51,
+ 0x47, 0x63, 0xc9, 0xbd, 0xfa, 0xa2, 0x9e, 0xad,
+ 0x6a, 0x7b, 0x21, 0x1a, 0x6c, 0x3e, 0xff, 0x46,
+ 0xbe, 0xf3, 0x35, 0x7a, 0x6e, 0xb3, 0xb9, 0xf7,
+ 0xda, 0x5e, 0xf0, 0x14, 0xb5, 0x70, 0xa4, 0x2b,
+ 0xdb, 0xbb, 0xc7, 0x31, 0x4b, 0x69, 0x5a, 0x83,
+ 0x70, 0xd9, 0x58, 0xd4, 0x33, 0x84, 0x23, 0xf0,
+ 0xae, 0xbb, 0x6d, 0x26, 0x7c, 0xc8, 0x30, 0xf7,
+ 0x24, 0xad, 0xbd, 0xe4, 0x2c, 0x38, 0x38, 0xac,
+ 0xe1, 0x4a, 0x9b, 0xac, 0x33, 0x0e, 0x4a, 0xf4,
+ 0x93, 0xed, 0x07, 0x82, 0x81, 0x4f, 0x8f, 0xb1,
+ 0xdd, 0x73, 0xd5, 0x50, 0x6d, 0x44, 0x1e, 0xbe,
+ 0xa7, 0xcd, 0x17, 0x57, 0xd5, 0x3b, 0x62, 0x36,
+ 0xcf, 0x7d, 0xc8, 0xd8, 0xd1, 0x78, 0xd7, 0x85,
+ 0x46, 0x76, 0x5d, 0xcc, 0xfe, 0xe8, 0x94, 0xc5,
+ 0xad, 0xbc, 0x5e, 0xbc, 0x8d, 0x1d, 0xdf, 0x03,
+ 0xc9, 0x6b, 0x1b, 0x81, 0xd1, 0xb6, 0x5a, 0x24,
+ 0xe3, 0xdc, 0x3f, 0x20, 0xc9, 0x07, 0x73, 0x4c,
+ 0x43, 0x13, 0x87, 0x58, 0x34, 0x0d, 0x14, 0x63,
+ 0x0f, 0x6f, 0xad, 0x8d, 0xac, 0x7c, 0x67, 0x68,
+ 0xa3, 0x9d, 0x7f, 0x00, 0xdf, 0x28, 0xee, 0x67,
+ 0xf4, 0x5c, 0x26, 0xcb, 0xef, 0x56, 0x71, 0xc8,
+ 0xc6, 0x67, 0x5f, 0x38, 0xbb, 0xa0, 0xb1, 0x5c,
+ 0x1f, 0xb3, 0x08, 0xd9, 0x38, 0xcf, 0x74, 0x54,
+ 0xc6, 0xa4, 0xc4, 0xc0, 0x9f, 0xb3, 0xd0, 0xda,
+ 0x62, 0x67, 0x8b, 0x81, 0x33, 0xf0, 0xa9, 0x73,
+ 0xa4, 0xd1, 0x46, 0x88, 0x8d, 0x85, 0x12, 0x40,
+ 0xba, 0x1a, 0xcd, 0x82, 0xd8, 0x8d, 0xc4, 0x52,
+ 0xe7, 0x01, 0x94, 0x2e, 0x0e, 0xd0, 0xaf, 0xe7,
+ 0x2d, 0x3f, 0x3c, 0xaa, 0xf4, 0xf5, 0xa7, 0x01,
+ 0x4c, 0x14, 0xe2, 0xc2, 0x96, 0x76, 0xbe, 0x05,
+ 0xaa, 0x19, 0xb1, 0xbd, 0x95, 0xbb, 0x5a, 0xf9,
+ 0xa5, 0xa7, 0xe6, 0x16, 0x38, 0x34, 0xf7, 0x9d,
+ 0x19, 0x66, 0x16, 0x8e, 0x7f, 0x2b, 0x5a, 0xfb,
+ 0xb5, 0x29, 0x79, 0xbf, 0x52, 0xae, 0x30, 0x95,
+ 0x3f, 0x31, 0x33, 0x28, 0xde, 0xc5, 0x0d, 0x55,
+ 0x89, 0xec, 0x21, 0x11, 0x0f, 0x8b, 0xfe, 0x63,
+ 0x3a, 0xf1, 0x95, 0x5c, 0xcd, 0x50, 0xe4, 0x5d,
+ 0x8f, 0xa7, 0xc8, 0xca, 0x93, 0xa0, 0x67, 0x82,
+ 0x63, 0x5c, 0xd0, 0xed, 0xe7, 0x08, 0xc5, 0x60,
+ 0xf8, 0xb4, 0x47, 0xf0, 0x1a, 0x65, 0x4e, 0xa3,
+ 0x51, 0x68, 0xc7, 0x14, 0xa1, 0xd9, 0x39, 0x72,
+ 0xa8, 0x6f, 0x7c, 0x7e, 0xf6, 0x03, 0x0b, 0x25,
+ 0x9b, 0xf2, 0xca, 0x49, 0xae, 0x5b, 0xf8, 0x0f,
+ 0x71, 0x51, 0x01, 0xa6, 0x23, 0xa9, 0xdf, 0xd0,
+ 0x7a, 0x39, 0x19, 0xf5, 0xc5, 0x26, 0x44, 0x7b,
+ 0x0a, 0x4a, 0x41, 0xbf, 0xf2, 0x8e, 0x83, 0x50,
+ 0x91, 0x96, 0x72, 0x02, 0xf6, 0x80, 0xbf, 0x95,
+ 0x41, 0xac, 0xda, 0xb0, 0xba, 0xe3, 0x76, 0xb1,
+ 0x9d, 0xff, 0x1f, 0x33, 0x02, 0x85, 0xfc, 0x2a,
+ 0x29, 0xe6, 0xe3, 0x9d, 0xd0, 0xef, 0xc2, 0xd6,
+ 0x9c, 0x4a, 0x62, 0xac, 0xcb, 0xea, 0x8b, 0xc3,
+ 0x08, 0x6e, 0x49, 0x09, 0x26, 0x19, 0xc1, 0x30,
+ 0xcc, 0x27, 0xaa, 0xc6, 0x45, 0x88, 0xbd, 0xae,
+ 0xd6, 0x79, 0xff, 0x4e, 0xfc, 0x66, 0x4d, 0x02,
+ 0xa5, 0xee, 0x8e, 0xa5, 0xb6, 0x15, 0x72, 0x24,
+ 0xb1, 0xbf, 0xbf, 0x64, 0xcf, 0xcc, 0x93, 0xe9,
+ 0xb6, 0xfd, 0xb4, 0xb6, 0x21, 0xb5, 0x48, 0x08,
+ 0x0f, 0x11, 0x65, 0xe1, 0x47, 0xee, 0x93, 0x29,
+ 0xad
+};
+static const u8 key72[] __initconst = {
+ 0xb9, 0xa2, 0xfc, 0x59, 0x06, 0x3f, 0x77, 0xa5,
+ 0x66, 0xd0, 0x2b, 0x22, 0x74, 0x22, 0x4c, 0x1e,
+ 0x6a, 0x39, 0xdf, 0xe1, 0x0d, 0x4c, 0x64, 0x99,
+ 0x54, 0x8a, 0xba, 0x1d, 0x2c, 0x21, 0x5f, 0xc3
+};
+enum { nonce72 = 0x3d069308fa3db04bULL };
+
+static const u8 input73[] __initconst = {
+ 0xe4, 0xdd, 0x36, 0xd4, 0xf5, 0x70, 0x51, 0x73,
+ 0x97, 0x1d, 0x45, 0x05, 0x92, 0xe7, 0xeb, 0xb7,
+ 0x09, 0x82, 0x6e, 0x25, 0x6c, 0x50, 0xf5, 0x40,
+ 0x19, 0xba, 0xbc, 0xf4, 0x39, 0x14, 0xc5, 0x15,
+ 0x83, 0x40, 0xbd, 0x26, 0xe0, 0xff, 0x3b, 0x22,
+ 0x7c, 0x7c, 0xd7, 0x0b, 0xe9, 0x25, 0x0c, 0x3d,
+ 0x92, 0x38, 0xbe, 0xe4, 0x22, 0x75, 0x65, 0xf1,
+ 0x03, 0x85, 0x34, 0x09, 0xb8, 0x77, 0xfb, 0x48,
+ 0xb1, 0x2e, 0x21, 0x67, 0x9b, 0x9d, 0xad, 0x18,
+ 0x82, 0x0d, 0x6b, 0xc3, 0xcf, 0x00, 0x61, 0x6e,
+ 0xda, 0xdc, 0xa7, 0x0b, 0x5c, 0x02, 0x1d, 0xa6,
+ 0x4e, 0x0d, 0x7f, 0x37, 0x01, 0x5a, 0x37, 0xf3,
+ 0x2b, 0xbf, 0xba, 0xe2, 0x1c, 0xb3, 0xa3, 0xbc,
+ 0x1c, 0x93, 0x1a, 0xb1, 0x71, 0xaf, 0xe2, 0xdd,
+ 0x17, 0xee, 0x53, 0xfa, 0xfb, 0x02, 0x40, 0x3e,
+ 0x03, 0xca, 0xe7, 0xc3, 0x51, 0x81, 0xcc, 0x8c,
+ 0xca, 0xcf, 0x4e, 0xc5, 0x78, 0x99, 0xfd, 0xbf,
+ 0xea, 0xab, 0x38, 0x81, 0xfc, 0xd1, 0x9e, 0x41,
+ 0x0b, 0x84, 0x25, 0xf1, 0x6b, 0x3c, 0xf5, 0x40,
+ 0x0d, 0xc4, 0x3e, 0xb3, 0x6a, 0xec, 0x6e, 0x75,
+ 0xdc, 0x9b, 0xdf, 0x08, 0x21, 0x16, 0xfb, 0x7a,
+ 0x8e, 0x19, 0x13, 0x02, 0xa7, 0xfc, 0x58, 0x21,
+ 0xc3, 0xb3, 0x59, 0x5a, 0x9c, 0xef, 0x38, 0xbd,
+ 0x87, 0x55, 0xd7, 0x0d, 0x1f, 0x84, 0xdc, 0x98,
+ 0x22, 0xca, 0x87, 0x96, 0x71, 0x6d, 0x68, 0x00,
+ 0xcb, 0x4f, 0x2f, 0xc4, 0x64, 0x0c, 0xc1, 0x53,
+ 0x0c, 0x90, 0xe7, 0x3c, 0x88, 0xca, 0xc5, 0x85,
+ 0xa3, 0x2a, 0x96, 0x7c, 0x82, 0x6d, 0x45, 0xf5,
+ 0xb7, 0x8d, 0x17, 0x69, 0xd6, 0xcd, 0x3c, 0xd3,
+ 0xe7, 0x1c, 0xce, 0x93, 0x50, 0xd4, 0x59, 0xa2,
+ 0xd8, 0x8b, 0x72, 0x60, 0x5b, 0x25, 0x14, 0xcd,
+ 0x5a, 0xe8, 0x8c, 0xdb, 0x23, 0x8d, 0x2b, 0x59,
+ 0x12, 0x13, 0x10, 0x47, 0xa4, 0xc8, 0x3c, 0xc1,
+ 0x81, 0x89, 0x6c, 0x98, 0xec, 0x8f, 0x7b, 0x32,
+ 0xf2, 0x87, 0xd9, 0xa2, 0x0d, 0xc2, 0x08, 0xf9,
+ 0xd5, 0xf3, 0x91, 0xe7, 0xb3, 0x87, 0xa7, 0x0b,
+ 0x64, 0x8f, 0xb9, 0x55, 0x1c, 0x81, 0x96, 0x6c,
+ 0xa1, 0xc9, 0x6e, 0x3b, 0xcd, 0x17, 0x1b, 0xfc,
+ 0xa6, 0x05, 0xba, 0x4a, 0x7d, 0x03, 0x3c, 0x59,
+ 0xc8, 0xee, 0x50, 0xb2, 0x5b, 0xe1, 0x4d, 0x6a,
+ 0x1f, 0x09, 0xdc, 0xa2, 0x51, 0xd1, 0x93, 0x3a,
+ 0x5f, 0x72, 0x1d, 0x26, 0x14, 0x62, 0xa2, 0x41,
+ 0x3d, 0x08, 0x70, 0x7b, 0x27, 0x3d, 0xbc, 0xdf,
+ 0x15, 0xfa, 0xb9, 0x5f, 0xb5, 0x38, 0x84, 0x0b,
+ 0x58, 0x3d, 0xee, 0x3f, 0x32, 0x65, 0x6d, 0xd7,
+ 0xce, 0x97, 0x3c, 0x8d, 0xfb, 0x63, 0xb9, 0xb0,
+ 0xa8, 0x4a, 0x72, 0x99, 0x97, 0x58, 0xc8, 0xa7,
+ 0xf9, 0x4c, 0xae, 0xc1, 0x63, 0xb9, 0x57, 0x18,
+ 0x8a, 0xfa, 0xab, 0xe9, 0xf3, 0x67, 0xe6, 0xfd,
+ 0xd2, 0x9d, 0x5c, 0xa9, 0x8e, 0x11, 0x0a, 0xf4,
+ 0x4b, 0xf1, 0xec, 0x1a, 0xaf, 0x50, 0x5d, 0x16,
+ 0x13, 0x69, 0x2e, 0xbd, 0x0d, 0xe6, 0xf0, 0xb2,
+ 0xed, 0xb4, 0x4c, 0x59, 0x77, 0x37, 0x00, 0x0b,
+ 0xc7, 0xa7, 0x9e, 0x37, 0xf3, 0x60, 0x70, 0xef,
+ 0xf3, 0xc1, 0x74, 0x52, 0x87, 0xc6, 0xa1, 0x81,
+ 0xbd, 0x0a, 0x2c, 0x5d, 0x2c, 0x0c, 0x6a, 0x81,
+ 0xa1, 0xfe, 0x26, 0x78, 0x6c, 0x03, 0x06, 0x07,
+ 0x34, 0xaa, 0xd1, 0x1b, 0x40, 0x03, 0x39, 0x56,
+ 0xcf, 0x2a, 0x92, 0xc1, 0x4e, 0xdf, 0x29, 0x24,
+ 0x83, 0x22, 0x7a, 0xea, 0x67, 0x1e, 0xe7, 0x54,
+ 0x64, 0xd3, 0xbd, 0x3a, 0x5d, 0xae, 0xca, 0xf0,
+ 0x9c, 0xd6, 0x5a, 0x9a, 0x62, 0xc8, 0xc7, 0x83,
+ 0xf9, 0x89, 0xde, 0x2d, 0x53, 0x64, 0x61, 0xf7,
+ 0xa3, 0xa7, 0x31, 0x38, 0xc6, 0x22, 0x9c, 0xb4,
+ 0x87, 0xe0
+};
+static const u8 output73[] __initconst = {
+ 0x34, 0xed, 0x05, 0xb0, 0x14, 0xbc, 0x8c, 0xcc,
+ 0x95, 0xbd, 0x99, 0x0f, 0xb1, 0x98, 0x17, 0x10,
+ 0xae, 0xe0, 0x08, 0x53, 0xa3, 0x69, 0xd2, 0xed,
+ 0x66, 0xdb, 0x2a, 0x34, 0x8d, 0x0c, 0x6e, 0xce,
+ 0x63, 0x69, 0xc9, 0xe4, 0x57, 0xc3, 0x0c, 0x8b,
+ 0xa6, 0x2c, 0xa7, 0xd2, 0x08, 0xff, 0x4f, 0xec,
+ 0x61, 0x8c, 0xee, 0x0d, 0xfa, 0x6b, 0xe0, 0xe8,
+ 0x71, 0xbc, 0x41, 0x46, 0xd7, 0x33, 0x1d, 0xc0,
+ 0xfd, 0xad, 0xca, 0x8b, 0x34, 0x56, 0xa4, 0x86,
+ 0x71, 0x62, 0xae, 0x5e, 0x3d, 0x2b, 0x66, 0x3e,
+ 0xae, 0xd8, 0xc0, 0xe1, 0x21, 0x3b, 0xca, 0xd2,
+ 0x6b, 0xa2, 0xb8, 0xc7, 0x98, 0x4a, 0xf3, 0xcf,
+ 0xb8, 0x62, 0xd8, 0x33, 0xe6, 0x80, 0xdb, 0x2f,
+ 0x0a, 0xaf, 0x90, 0x3c, 0xe1, 0xec, 0xe9, 0x21,
+ 0x29, 0x42, 0x9e, 0xa5, 0x50, 0xe9, 0x93, 0xd3,
+ 0x53, 0x1f, 0xac, 0x2a, 0x24, 0x07, 0xb8, 0xed,
+ 0xed, 0x38, 0x2c, 0xc4, 0xa1, 0x2b, 0x31, 0x5d,
+ 0x9c, 0x24, 0x7b, 0xbf, 0xd9, 0xbb, 0x4e, 0x87,
+ 0x8f, 0x32, 0x30, 0xf1, 0x11, 0x29, 0x54, 0x94,
+ 0x00, 0x95, 0x1d, 0x1d, 0x24, 0xc0, 0xd4, 0x34,
+ 0x49, 0x1d, 0xd5, 0xe3, 0xa6, 0xde, 0x8b, 0xbf,
+ 0x5a, 0x9f, 0x58, 0x5a, 0x9b, 0x70, 0xe5, 0x9b,
+ 0xb3, 0xdb, 0xe8, 0xb8, 0xca, 0x1b, 0x43, 0xe3,
+ 0xc6, 0x6f, 0x0a, 0xd6, 0x32, 0x11, 0xd4, 0x04,
+ 0xef, 0xa3, 0xe4, 0x3f, 0x12, 0xd8, 0xc1, 0x73,
+ 0x51, 0x87, 0x03, 0xbd, 0xba, 0x60, 0x79, 0xee,
+ 0x08, 0xcc, 0xf7, 0xc0, 0xaa, 0x4c, 0x33, 0xc4,
+ 0xc7, 0x09, 0xf5, 0x91, 0xcb, 0x74, 0x57, 0x08,
+ 0x1b, 0x90, 0xa9, 0x1b, 0x60, 0x02, 0xd2, 0x3f,
+ 0x7a, 0xbb, 0xfd, 0x78, 0xf0, 0x15, 0xf9, 0x29,
+ 0x82, 0x8f, 0xc4, 0xb2, 0x88, 0x1f, 0xbc, 0xcc,
+ 0x53, 0x27, 0x8b, 0x07, 0x5f, 0xfc, 0x91, 0x29,
+ 0x82, 0x80, 0x59, 0x0a, 0x3c, 0xea, 0xc4, 0x7e,
+ 0xad, 0xd2, 0x70, 0x46, 0xbd, 0x9e, 0x3b, 0x1c,
+ 0x8a, 0x62, 0xea, 0x69, 0xbd, 0xf6, 0x96, 0x15,
+ 0xb5, 0x57, 0xe8, 0x63, 0x5f, 0x65, 0x46, 0x84,
+ 0x58, 0x50, 0x87, 0x4b, 0x0e, 0x5b, 0x52, 0x90,
+ 0xb0, 0xae, 0x37, 0x0f, 0xdd, 0x7e, 0xa2, 0xa0,
+ 0x8b, 0x78, 0xc8, 0x5a, 0x1f, 0x53, 0xdb, 0xc5,
+ 0xbf, 0x73, 0x20, 0xa9, 0x44, 0xfb, 0x1e, 0xc7,
+ 0x97, 0xb2, 0x3a, 0x5a, 0x17, 0xe6, 0x8b, 0x9b,
+ 0xe8, 0xf8, 0x2a, 0x01, 0x27, 0xa3, 0x71, 0x28,
+ 0xe3, 0x19, 0xc6, 0xaf, 0xf5, 0x3a, 0x26, 0xc0,
+ 0x5c, 0x69, 0x30, 0x78, 0x75, 0x27, 0xf2, 0x0c,
+ 0x22, 0x71, 0x65, 0xc6, 0x8e, 0x7b, 0x47, 0xe3,
+ 0x31, 0xaf, 0x7b, 0xc6, 0xc2, 0x55, 0x68, 0x81,
+ 0xaa, 0x1b, 0x21, 0x65, 0xfb, 0x18, 0x35, 0x45,
+ 0x36, 0x9a, 0x44, 0xba, 0x5c, 0xff, 0x06, 0xde,
+ 0x3a, 0xc8, 0x44, 0x0b, 0xaa, 0x8e, 0x34, 0xe2,
+ 0x84, 0xac, 0x18, 0xfe, 0x9b, 0xe1, 0x4f, 0xaa,
+ 0xb6, 0x90, 0x0b, 0x1c, 0x2c, 0xd9, 0x9a, 0x10,
+ 0x18, 0xf9, 0x49, 0x41, 0x42, 0x1b, 0xb5, 0xe1,
+ 0x26, 0xac, 0x2d, 0x38, 0x00, 0x00, 0xe4, 0xb4,
+ 0x50, 0x6f, 0x14, 0x18, 0xd6, 0x3d, 0x00, 0x59,
+ 0x3c, 0x45, 0xf3, 0x42, 0x13, 0x44, 0xb8, 0x57,
+ 0xd4, 0x43, 0x5c, 0x8a, 0x2a, 0xb4, 0xfc, 0x0a,
+ 0x25, 0x5a, 0xdc, 0x8f, 0x11, 0x0b, 0x11, 0x44,
+ 0xc7, 0x0e, 0x54, 0x8b, 0x22, 0x01, 0x7e, 0x67,
+ 0x2e, 0x15, 0x3a, 0xb9, 0xee, 0x84, 0x10, 0xd4,
+ 0x80, 0x57, 0xd7, 0x75, 0xcf, 0x8b, 0xcb, 0x03,
+ 0xc9, 0x92, 0x2b, 0x69, 0xd8, 0x5a, 0x9b, 0x06,
+ 0x85, 0x47, 0xaa, 0x4c, 0x28, 0xde, 0x49, 0x58,
+ 0xe6, 0x11, 0x1e, 0x5e, 0x64, 0x8e, 0x3b, 0xe0,
+ 0x40, 0x2e, 0xac, 0x96, 0x97, 0x15, 0x37, 0x1e,
+ 0x30, 0xdd
+};
+static const u8 key73[] __initconst = {
+ 0x96, 0x06, 0x1e, 0xc1, 0x6d, 0xba, 0x49, 0x5b,
+ 0x65, 0x80, 0x79, 0xdd, 0xf3, 0x67, 0xa8, 0x6e,
+ 0x2d, 0x9c, 0x54, 0x46, 0xd8, 0x4a, 0xeb, 0x7e,
+ 0x23, 0x86, 0x51, 0xd8, 0x49, 0x49, 0x56, 0xe0
+};
+enum { nonce73 = 0xbefb83cb67e11ffdULL };
+
+static const u8 input74[] __initconst = {
+ 0x47, 0x22, 0x70, 0xe5, 0x2f, 0x41, 0x18, 0x45,
+ 0x07, 0xd3, 0x6d, 0x32, 0x0d, 0x43, 0x92, 0x2b,
+ 0x9b, 0x65, 0x73, 0x13, 0x1a, 0x4f, 0x49, 0x8f,
+ 0xff, 0xf8, 0xcc, 0xae, 0x15, 0xab, 0x9d, 0x7d,
+ 0xee, 0x22, 0x5d, 0x8b, 0xde, 0x81, 0x5b, 0x81,
+ 0x83, 0x49, 0x35, 0x9b, 0xb4, 0xbc, 0x4e, 0x01,
+ 0xc2, 0x29, 0xa7, 0xf1, 0xca, 0x3a, 0xce, 0x3f,
+ 0xf5, 0x31, 0x93, 0xa8, 0xe2, 0xc9, 0x7d, 0x03,
+ 0x26, 0xa4, 0xbc, 0xa8, 0x9c, 0xb9, 0x68, 0xf3,
+ 0xb3, 0x91, 0xe8, 0xe6, 0xc7, 0x2b, 0x1a, 0xce,
+ 0xd2, 0x41, 0x53, 0xbd, 0xa3, 0x2c, 0x54, 0x94,
+ 0x21, 0xa1, 0x40, 0xae, 0xc9, 0x0c, 0x11, 0x92,
+ 0xfd, 0x91, 0xa9, 0x40, 0xca, 0xde, 0x21, 0x4e,
+ 0x1e, 0x3d, 0xcc, 0x2c, 0x87, 0x11, 0xef, 0x46,
+ 0xed, 0x52, 0x03, 0x11, 0x19, 0x43, 0x25, 0xc7,
+ 0x0d, 0xc3, 0x37, 0x5f, 0xd3, 0x6f, 0x0c, 0x6a,
+ 0x45, 0x30, 0x88, 0xec, 0xf0, 0x21, 0xef, 0x1d,
+ 0x7b, 0x38, 0x63, 0x4b, 0x49, 0x0c, 0x72, 0xf6,
+ 0x4c, 0x40, 0xc3, 0xcc, 0x03, 0xa7, 0xae, 0xa8,
+ 0x8c, 0x37, 0x03, 0x1c, 0x11, 0xae, 0x0d, 0x1b,
+ 0x62, 0x97, 0x27, 0xfc, 0x56, 0x4b, 0xb7, 0xfd,
+ 0xbc, 0xfb, 0x0e, 0xfc, 0x61, 0xad, 0xc6, 0xb5,
+ 0x9c, 0x8c, 0xc6, 0x38, 0x27, 0x91, 0x29, 0x3d,
+ 0x29, 0xc8, 0x37, 0xc9, 0x96, 0x69, 0xe3, 0xdc,
+ 0x3e, 0x61, 0x35, 0x9b, 0x99, 0x4f, 0xb9, 0x4e,
+ 0x5a, 0x29, 0x1c, 0x2e, 0xcf, 0x16, 0xcb, 0x69,
+ 0x87, 0xe4, 0x1a, 0xc4, 0x6e, 0x78, 0x43, 0x00,
+ 0x03, 0xb2, 0x8b, 0x03, 0xd0, 0xb4, 0xf1, 0xd2,
+ 0x7d, 0x2d, 0x7e, 0xfc, 0x19, 0x66, 0x5b, 0xa3,
+ 0x60, 0x3f, 0x9d, 0xbd, 0xfa, 0x3e, 0xca, 0x7b,
+ 0x26, 0x08, 0x19, 0x16, 0x93, 0x5d, 0x83, 0xfd,
+ 0xf9, 0x21, 0xc6, 0x31, 0x34, 0x6f, 0x0c, 0xaa,
+ 0x28, 0xf9, 0x18, 0xa2, 0xc4, 0x78, 0x3b, 0x56,
+ 0xc0, 0x88, 0x16, 0xba, 0x22, 0x2c, 0x07, 0x2f,
+ 0x70, 0xd0, 0xb0, 0x46, 0x35, 0xc7, 0x14, 0xdc,
+ 0xbb, 0x56, 0x23, 0x1e, 0x36, 0x36, 0x2d, 0x73,
+ 0x78, 0xc7, 0xce, 0xf3, 0x58, 0xf7, 0x58, 0xb5,
+ 0x51, 0xff, 0x33, 0x86, 0x0e, 0x3b, 0x39, 0xfb,
+ 0x1a, 0xfd, 0xf8, 0x8b, 0x09, 0x33, 0x1b, 0x83,
+ 0xf2, 0xe6, 0x38, 0x37, 0xef, 0x47, 0x84, 0xd9,
+ 0x82, 0x77, 0x2b, 0x82, 0xcc, 0xf9, 0xee, 0x94,
+ 0x71, 0x78, 0x81, 0xc8, 0x4d, 0x91, 0xd7, 0x35,
+ 0x29, 0x31, 0x30, 0x5c, 0x4a, 0x23, 0x23, 0xb1,
+ 0x38, 0x6b, 0xac, 0x22, 0x3f, 0x80, 0xc7, 0xe0,
+ 0x7d, 0xfa, 0x76, 0x47, 0xd4, 0x6f, 0x93, 0xa0,
+ 0xa0, 0x93, 0x5d, 0x68, 0xf7, 0x43, 0x25, 0x8f,
+ 0x1b, 0xc7, 0x87, 0xea, 0x59, 0x0c, 0xa2, 0xfa,
+ 0xdb, 0x2f, 0x72, 0x43, 0xcf, 0x90, 0xf1, 0xd6,
+ 0x58, 0xf3, 0x17, 0x6a, 0xdf, 0xb3, 0x4e, 0x0e,
+ 0x38, 0x24, 0x48, 0x1f, 0xb7, 0x01, 0xec, 0x81,
+ 0xb1, 0x87, 0x5b, 0xec, 0x9c, 0x11, 0x1a, 0xff,
+ 0xa5, 0xca, 0x5a, 0x63, 0x31, 0xb2, 0xe4, 0xc6,
+ 0x3c, 0x1d, 0xaf, 0x27, 0xb2, 0xd4, 0x19, 0xa2,
+ 0xcc, 0x04, 0x92, 0x42, 0xd2, 0xc1, 0x8c, 0x3b,
+ 0xce, 0xf5, 0x74, 0xc1, 0x81, 0xf8, 0x20, 0x23,
+ 0x6f, 0x20, 0x6d, 0x78, 0x36, 0x72, 0x2c, 0x52,
+ 0xdf, 0x5e, 0xe8, 0x75, 0xce, 0x1c, 0x49, 0x9d,
+ 0x93, 0x6f, 0x65, 0xeb, 0xb1, 0xbd, 0x8e, 0x5e,
+ 0xe5, 0x89, 0xc4, 0x8a, 0x81, 0x3d, 0x9a, 0xa7,
+ 0x11, 0x82, 0x8e, 0x38, 0x5b, 0x5b, 0xca, 0x7d,
+ 0x4b, 0x72, 0xc2, 0x9c, 0x30, 0x5e, 0x7f, 0xc0,
+ 0x6f, 0x91, 0xd5, 0x67, 0x8c, 0x3e, 0xae, 0xda,
+ 0x2b, 0x3c, 0x53, 0xcc, 0x50, 0x97, 0x36, 0x0b,
+ 0x79, 0xd6, 0x73, 0x6e, 0x7d, 0x42, 0x56, 0xe1,
+ 0xaa, 0xfc, 0xb3, 0xa7, 0xc8, 0x01, 0xaa, 0xc1,
+ 0xfc, 0x5c, 0x72, 0x8e, 0x63, 0xa8, 0x46, 0x18,
+ 0xee, 0x11, 0xe7, 0x30, 0x09, 0x83, 0x6c, 0xd9,
+ 0xf4, 0x7a, 0x7b, 0xb5, 0x1f, 0x6d, 0xc7, 0xbc,
+ 0xcb, 0x55, 0xea, 0x40, 0x58, 0x7a, 0x00, 0x00,
+ 0x90, 0x60, 0xc5, 0x64, 0x69, 0x05, 0x99, 0xd2,
+ 0x49, 0x62, 0x4f, 0xcb, 0x97, 0xdf, 0xdd, 0x6b,
+ 0x60, 0x75, 0xe2, 0xe0, 0x6f, 0x76, 0xd0, 0x37,
+ 0x67, 0x0a, 0xcf, 0xff, 0xc8, 0x61, 0x84, 0x14,
+ 0x80, 0x7c, 0x1d, 0x31, 0x8d, 0x90, 0xde, 0x0b,
+ 0x1c, 0x74, 0x9f, 0x82, 0x96, 0x80, 0xda, 0xaf,
+ 0x8d, 0x99, 0x86, 0x9f, 0x24, 0x99, 0x28, 0x3e,
+ 0xe0, 0xa3, 0xc3, 0x90, 0x2d, 0x14, 0x65, 0x1e,
+ 0x3b, 0xb9, 0xba, 0x13, 0xa5, 0x77, 0x73, 0x63,
+ 0x9a, 0x06, 0x3d, 0xa9, 0x28, 0x9b, 0xba, 0x25,
+ 0x61, 0xc9, 0xcd, 0xcf, 0x7a, 0x4d, 0x96, 0x09,
+ 0xcb, 0xca, 0x03, 0x9c, 0x54, 0x34, 0x31, 0x85,
+ 0xa0, 0x3d, 0xe5, 0xbc, 0xa5, 0x5f, 0x1b, 0xd3,
+ 0x10, 0x63, 0x74, 0x9d, 0x01, 0x92, 0x88, 0xf0,
+ 0x27, 0x9c, 0x28, 0xd9, 0xfd, 0xe2, 0x4e, 0x01,
+ 0x8d, 0x61, 0x79, 0x60, 0x61, 0x5b, 0x76, 0xab,
+ 0x06, 0xd3, 0x44, 0x87, 0x43, 0x52, 0xcd, 0x06,
+ 0x68, 0x1e, 0x2d, 0xc5, 0xb0, 0x07, 0x25, 0xdf,
+ 0x0a, 0x50, 0xd7, 0xd9, 0x08, 0x53, 0x65, 0xf1,
+ 0x0c, 0x2c, 0xde, 0x3f, 0x9d, 0x03, 0x1f, 0xe1,
+ 0x49, 0x43, 0x3c, 0x83, 0x81, 0x37, 0xf8, 0xa2,
+ 0x0b, 0xf9, 0x61, 0x1c, 0xc1, 0xdb, 0x79, 0xbc,
+ 0x64, 0xce, 0x06, 0x4e, 0x87, 0x89, 0x62, 0x73,
+ 0x51, 0xbc, 0xa4, 0x32, 0xd4, 0x18, 0x62, 0xab,
+ 0x65, 0x7e, 0xad, 0x1e, 0x91, 0xa3, 0xfa, 0x2d,
+ 0x58, 0x9e, 0x2a, 0xe9, 0x74, 0x44, 0x64, 0x11,
+ 0xe6, 0xb6, 0xb3, 0x00, 0x7e, 0xa3, 0x16, 0xef,
+ 0x72
+};
+static const u8 output74[] __initconst = {
+ 0xf5, 0xca, 0x45, 0x65, 0x50, 0x35, 0x47, 0x67,
+ 0x6f, 0x4f, 0x67, 0xff, 0x34, 0xd9, 0xc3, 0x37,
+ 0x2a, 0x26, 0xb0, 0x4f, 0x08, 0x1e, 0x45, 0x13,
+ 0xc7, 0x2c, 0x14, 0x75, 0x33, 0xd8, 0x8e, 0x1e,
+ 0x1b, 0x11, 0x0d, 0x97, 0x04, 0x33, 0x8a, 0xe4,
+ 0xd8, 0x8d, 0x0e, 0x12, 0x8d, 0xdb, 0x6e, 0x02,
+ 0xfa, 0xe5, 0xbd, 0x3a, 0xb5, 0x28, 0x07, 0x7d,
+ 0x20, 0xf0, 0x12, 0x64, 0x83, 0x2f, 0x59, 0x79,
+ 0x17, 0x88, 0x3c, 0x2d, 0x08, 0x2f, 0x55, 0xda,
+ 0xcc, 0x02, 0x3a, 0x82, 0xcd, 0x03, 0x94, 0xdf,
+ 0xdf, 0xab, 0x8a, 0x13, 0xf5, 0xe6, 0x74, 0xdf,
+ 0x7b, 0xe2, 0xab, 0x34, 0xbc, 0x00, 0x85, 0xbf,
+ 0x5a, 0x48, 0xc8, 0xff, 0x8d, 0x6c, 0x27, 0x48,
+ 0x19, 0x2d, 0x08, 0xfa, 0x82, 0x62, 0x39, 0x55,
+ 0x32, 0x11, 0xa8, 0xd7, 0xb9, 0x08, 0x2c, 0xd6,
+ 0x7a, 0xd9, 0x83, 0x9f, 0x9b, 0xfb, 0xec, 0x3a,
+ 0xd1, 0x08, 0xc7, 0xad, 0xdc, 0x98, 0x4c, 0xbc,
+ 0x98, 0xeb, 0x36, 0xb0, 0x39, 0xf4, 0x3a, 0xd6,
+ 0x53, 0x02, 0xa0, 0xa9, 0x73, 0xa1, 0xca, 0xef,
+ 0xd8, 0xd2, 0xec, 0x0e, 0xf8, 0xf5, 0xac, 0x8d,
+ 0x34, 0x41, 0x06, 0xa8, 0xc6, 0xc3, 0x31, 0xbc,
+ 0xe5, 0xcc, 0x7e, 0x72, 0x63, 0x59, 0x3e, 0x63,
+ 0xc2, 0x8d, 0x2b, 0xd5, 0xb9, 0xfd, 0x1e, 0x31,
+ 0x69, 0x32, 0x05, 0xd6, 0xde, 0xc9, 0xe6, 0x4c,
+ 0xac, 0x68, 0xf7, 0x1f, 0x9d, 0xcd, 0x0e, 0xa2,
+ 0x15, 0x3d, 0xd6, 0x47, 0x99, 0xab, 0x08, 0x5f,
+ 0x28, 0xc3, 0x4c, 0xc2, 0xd5, 0xdd, 0x10, 0xb7,
+ 0xbd, 0xdb, 0x9b, 0xcf, 0x85, 0x27, 0x29, 0x76,
+ 0x98, 0xeb, 0xad, 0x31, 0x64, 0xe7, 0xfb, 0x61,
+ 0xe0, 0xd8, 0x1a, 0xa6, 0xe2, 0xe7, 0x43, 0x42,
+ 0x77, 0xc9, 0x82, 0x00, 0xac, 0x85, 0xe0, 0xa2,
+ 0xd4, 0x62, 0xe3, 0xb7, 0x17, 0x6e, 0xb2, 0x9e,
+ 0x21, 0x58, 0x73, 0xa9, 0x53, 0x2d, 0x3c, 0xe1,
+ 0xdd, 0xd6, 0x6e, 0x92, 0xf2, 0x1d, 0xc2, 0x22,
+ 0x5f, 0x9a, 0x7e, 0xd0, 0x52, 0xbf, 0x54, 0x19,
+ 0xd7, 0x80, 0x63, 0x3e, 0xd0, 0x08, 0x2d, 0x37,
+ 0x0c, 0x15, 0xf7, 0xde, 0xab, 0x2b, 0xe3, 0x16,
+ 0x21, 0x3a, 0xee, 0xa5, 0xdc, 0xdf, 0xde, 0xa3,
+ 0x69, 0xcb, 0xfd, 0x92, 0x89, 0x75, 0xcf, 0xc9,
+ 0x8a, 0xa4, 0xc8, 0xdd, 0xcc, 0x21, 0xe6, 0xfe,
+ 0x9e, 0x43, 0x76, 0xb2, 0x45, 0x22, 0xb9, 0xb5,
+ 0xac, 0x7e, 0x3d, 0x26, 0xb0, 0x53, 0xc8, 0xab,
+ 0xfd, 0xea, 0x2c, 0xd1, 0x44, 0xc5, 0x60, 0x1b,
+ 0x8a, 0x99, 0x0d, 0xa5, 0x0e, 0x67, 0x6e, 0x3a,
+ 0x96, 0x55, 0xec, 0xe8, 0xcc, 0xbe, 0x49, 0xd9,
+ 0xf2, 0x72, 0x9f, 0x30, 0x21, 0x97, 0x57, 0x19,
+ 0xbe, 0x5e, 0x33, 0x0c, 0xee, 0xc0, 0x72, 0x0d,
+ 0x2e, 0xd1, 0xe1, 0x52, 0xc2, 0xea, 0x41, 0xbb,
+ 0xe1, 0x6d, 0xd4, 0x17, 0xa9, 0x8d, 0x89, 0xa9,
+ 0xd6, 0x4b, 0xc6, 0x4c, 0xf2, 0x88, 0x97, 0x54,
+ 0x3f, 0x4f, 0x57, 0xb7, 0x37, 0xf0, 0x2c, 0x11,
+ 0x15, 0x56, 0xdb, 0x28, 0xb5, 0x16, 0x84, 0x66,
+ 0xce, 0x45, 0x3f, 0x61, 0x75, 0xb6, 0xbe, 0x00,
+ 0xd1, 0xe4, 0xf5, 0x27, 0x54, 0x7f, 0xc2, 0xf1,
+ 0xb3, 0x32, 0x9a, 0xe8, 0x07, 0x02, 0xf3, 0xdb,
+ 0xa9, 0xd1, 0xc2, 0xdf, 0xee, 0xad, 0xe5, 0x8a,
+ 0x3c, 0xfa, 0x67, 0xec, 0x6b, 0xa4, 0x08, 0xfe,
+ 0xba, 0x5a, 0x58, 0x0b, 0x78, 0x11, 0x91, 0x76,
+ 0xe3, 0x1a, 0x28, 0x54, 0x5e, 0xbd, 0x71, 0x1b,
+ 0x8b, 0xdc, 0x6c, 0xf4, 0x6f, 0xd7, 0xf4, 0xf3,
+ 0xe1, 0x03, 0xa4, 0x3c, 0x8d, 0x91, 0x2e, 0xba,
+ 0x5f, 0x7f, 0x8c, 0xaf, 0x69, 0x89, 0x29, 0x0a,
+ 0x5b, 0x25, 0x13, 0xc4, 0x2e, 0x16, 0xc2, 0x15,
+ 0x07, 0x5d, 0x58, 0x33, 0x7c, 0xe0, 0xf0, 0x55,
+ 0x5f, 0xbf, 0x5e, 0xf0, 0x71, 0x48, 0x8f, 0xf7,
+ 0x48, 0xb3, 0xf7, 0x0d, 0xa1, 0xd0, 0x63, 0xb1,
+ 0xad, 0xae, 0xb5, 0xb0, 0x5f, 0x71, 0xaf, 0x24,
+ 0x8b, 0xb9, 0x1c, 0x44, 0xd2, 0x1a, 0x53, 0xd1,
+ 0xd5, 0xb4, 0xa9, 0xff, 0x88, 0x73, 0xb5, 0xaa,
+ 0x15, 0x32, 0x5f, 0x59, 0x9d, 0x2e, 0xb5, 0xcb,
+ 0xde, 0x21, 0x2e, 0xe9, 0x35, 0xed, 0xfd, 0x0f,
+ 0xb6, 0xbb, 0xe6, 0x4b, 0x16, 0xf1, 0x45, 0x1e,
+ 0xb4, 0x84, 0xe9, 0x58, 0x1c, 0x0c, 0x95, 0xc0,
+ 0xcf, 0x49, 0x8b, 0x59, 0xa1, 0x78, 0xe6, 0x80,
+ 0x12, 0x49, 0x7a, 0xd4, 0x66, 0x62, 0xdf, 0x9c,
+ 0x18, 0xc8, 0x8c, 0xda, 0xc1, 0xa6, 0xbc, 0x65,
+ 0x28, 0xd2, 0xa4, 0xe8, 0xf1, 0x35, 0xdb, 0x5a,
+ 0x75, 0x1f, 0x73, 0x60, 0xec, 0xa8, 0xda, 0x5a,
+ 0x43, 0x15, 0x83, 0x9b, 0xe7, 0xb1, 0xa6, 0x81,
+ 0xbb, 0xef, 0xf3, 0x8f, 0x0f, 0xd3, 0x79, 0xa2,
+ 0xe5, 0xaa, 0x42, 0xef, 0xa0, 0x13, 0x4e, 0x91,
+ 0x2d, 0xcb, 0x61, 0x7a, 0x9a, 0x33, 0x14, 0x50,
+ 0x77, 0x4a, 0xd0, 0x91, 0x48, 0xe0, 0x0c, 0xe0,
+ 0x11, 0xcb, 0xdf, 0xb0, 0xce, 0x06, 0xd2, 0x79,
+ 0x4d, 0x69, 0xb9, 0xc9, 0x36, 0x74, 0x8f, 0x81,
+ 0x72, 0x73, 0xf3, 0x17, 0xb7, 0x13, 0xcb, 0x5b,
+ 0xd2, 0x5c, 0x33, 0x61, 0xb7, 0x61, 0x79, 0xb0,
+ 0xc0, 0x4d, 0xa1, 0xc7, 0x5d, 0x98, 0xc9, 0xe1,
+ 0x98, 0xbd, 0x78, 0x5a, 0x2c, 0x64, 0x53, 0xaf,
+ 0xaf, 0x66, 0x51, 0x47, 0xe4, 0x48, 0x66, 0x8b,
+ 0x07, 0x52, 0xa3, 0x03, 0x93, 0x28, 0xad, 0xcc,
+ 0xa3, 0x86, 0xad, 0x63, 0x04, 0x35, 0x6c, 0x49,
+ 0xd5, 0x28, 0x0e, 0x00, 0x47, 0xf4, 0xd4, 0x32,
+ 0x27, 0x19, 0xb3, 0x29, 0xe7, 0xbc, 0xbb, 0xce,
+ 0x3e, 0x3e, 0xd5, 0x67, 0x20, 0xe4, 0x0b, 0x75,
+ 0x95, 0x24, 0xe0, 0x6c, 0xb6, 0x29, 0x0c, 0x14,
+ 0xfd
+};
+static const u8 key74[] __initconst = {
+ 0xf0, 0x41, 0x5b, 0x00, 0x56, 0xc4, 0xac, 0xf6,
+ 0xa2, 0x4c, 0x33, 0x41, 0x16, 0x09, 0x1b, 0x8e,
+ 0x4d, 0xe8, 0x8c, 0xd9, 0x48, 0xab, 0x3e, 0x60,
+ 0xcb, 0x49, 0x3e, 0xaf, 0x2b, 0x8b, 0xc8, 0xf0
+};
+enum { nonce74 = 0xcbdb0ffd0e923384ULL };
+
+static const struct chacha20_testvec chacha20_testvecs[] __initconst = {
+ { input01, output01, key01, nonce01, sizeof(input01) },
+ { input02, output02, key02, nonce02, sizeof(input02) },
+ { input03, output03, key03, nonce03, sizeof(input03) },
+ { input04, output04, key04, nonce04, sizeof(input04) },
+ { input05, output05, key05, nonce05, sizeof(input05) },
+ { input06, output06, key06, nonce06, sizeof(input06) },
+ { input07, output07, key07, nonce07, sizeof(input07) },
+ { input08, output08, key08, nonce08, sizeof(input08) },
+ { input09, output09, key09, nonce09, sizeof(input09) },
+ { input10, output10, key10, nonce10, sizeof(input10) },
+ { input11, output11, key11, nonce11, sizeof(input11) },
+ { input12, output12, key12, nonce12, sizeof(input12) },
+ { input13, output13, key13, nonce13, sizeof(input13) },
+ { input14, output14, key14, nonce14, sizeof(input14) },
+ { input15, output15, key15, nonce15, sizeof(input15) },
+ { input16, output16, key16, nonce16, sizeof(input16) },
+ { input17, output17, key17, nonce17, sizeof(input17) },
+ { input18, output18, key18, nonce18, sizeof(input18) },
+ { input19, output19, key19, nonce19, sizeof(input19) },
+ { input20, output20, key20, nonce20, sizeof(input20) },
+ { input21, output21, key21, nonce21, sizeof(input21) },
+ { input22, output22, key22, nonce22, sizeof(input22) },
+ { input23, output23, key23, nonce23, sizeof(input23) },
+ { input24, output24, key24, nonce24, sizeof(input24) },
+ { input25, output25, key25, nonce25, sizeof(input25) },
+ { input26, output26, key26, nonce26, sizeof(input26) },
+ { input27, output27, key27, nonce27, sizeof(input27) },
+ { input28, output28, key28, nonce28, sizeof(input28) },
+ { input29, output29, key29, nonce29, sizeof(input29) },
+ { input30, output30, key30, nonce30, sizeof(input30) },
+ { input31, output31, key31, nonce31, sizeof(input31) },
+ { input32, output32, key32, nonce32, sizeof(input32) },
+ { input33, output33, key33, nonce33, sizeof(input33) },
+ { input34, output34, key34, nonce34, sizeof(input34) },
+ { input35, output35, key35, nonce35, sizeof(input35) },
+ { input36, output36, key36, nonce36, sizeof(input36) },
+ { input37, output37, key37, nonce37, sizeof(input37) },
+ { input38, output38, key38, nonce38, sizeof(input38) },
+ { input39, output39, key39, nonce39, sizeof(input39) },
+ { input40, output40, key40, nonce40, sizeof(input40) },
+ { input41, output41, key41, nonce41, sizeof(input41) },
+ { input42, output42, key42, nonce42, sizeof(input42) },
+ { input43, output43, key43, nonce43, sizeof(input43) },
+ { input44, output44, key44, nonce44, sizeof(input44) },
+ { input45, output45, key45, nonce45, sizeof(input45) },
+ { input46, output46, key46, nonce46, sizeof(input46) },
+ { input47, output47, key47, nonce47, sizeof(input47) },
+ { input48, output48, key48, nonce48, sizeof(input48) },
+ { input49, output49, key49, nonce49, sizeof(input49) },
+ { input50, output50, key50, nonce50, sizeof(input50) },
+ { input51, output51, key51, nonce51, sizeof(input51) },
+ { input52, output52, key52, nonce52, sizeof(input52) },
+ { input53, output53, key53, nonce53, sizeof(input53) },
+ { input54, output54, key54, nonce54, sizeof(input54) },
+ { input55, output55, key55, nonce55, sizeof(input55) },
+ { input56, output56, key56, nonce56, sizeof(input56) },
+ { input57, output57, key57, nonce57, sizeof(input57) },
+ { input58, output58, key58, nonce58, sizeof(input58) },
+ { input59, output59, key59, nonce59, sizeof(input59) },
+ { input60, output60, key60, nonce60, sizeof(input60) },
+ { input61, output61, key61, nonce61, sizeof(input61) },
+ { input62, output62, key62, nonce62, sizeof(input62) },
+ { input63, output63, key63, nonce63, sizeof(input63) },
+ { input64, output64, key64, nonce64, sizeof(input64) },
+ { input65, output65, key65, nonce65, sizeof(input65) },
+ { input66, output66, key66, nonce66, sizeof(input66) },
+ { input67, output67, key67, nonce67, sizeof(input67) },
+ { input68, output68, key68, nonce68, sizeof(input68) },
+ { input69, output69, key69, nonce69, sizeof(input69) },
+ { input70, output70, key70, nonce70, sizeof(input70) },
+ { input71, output71, key71, nonce71, sizeof(input71) },
+ { input72, output72, key72, nonce72, sizeof(input72) },
+ { input73, output73, key73, nonce73, sizeof(input73) },
+ { input74, output74, key74, nonce74, sizeof(input74) }
+};
+
+static const struct hchacha20_testvec hchacha20_testvecs[] __initconst = {{
+ .key = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+ 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f },
+ .nonce = { 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x4a,
+ 0x00, 0x00, 0x00, 0x00, 0x31, 0x41, 0x59, 0x27 },
+ .output = { 0x82, 0x41, 0x3b, 0x42, 0x27, 0xb2, 0x7b, 0xfe,
+ 0xd3, 0x0e, 0x42, 0x50, 0x8a, 0x87, 0x7d, 0x73,
+ 0xa0, 0xf9, 0xe4, 0xd5, 0x8a, 0x74, 0xa8, 0x53,
+ 0xc1, 0x2e, 0xc4, 0x13, 0x26, 0xd3, 0xec, 0xdc }
+}};
+
+static bool __init chacha20_selftest(void)
+{
+ enum {
+ MAXIMUM_TEST_BUFFER_LEN = 1UL << 10,
+ OUTRAGEOUSLY_HUGE_BUFFER_LEN = PAGE_SIZE * 35 + 17 /* 143k */
+ };
+ size_t i, j, k;
+ u32 derived_key[CHACHA20_KEY_WORDS];
+ u8 *offset_input = NULL, *computed_output = NULL, *massive_input = NULL;
+ u8 offset_key[CHACHA20_KEY_SIZE + 1]
+ __aligned(__alignof__(unsigned long));
+ struct chacha20_ctx state;
+ bool success = true;
+ simd_context_t simd_context;
+
+ offset_input = kmalloc(MAXIMUM_TEST_BUFFER_LEN + 1, GFP_KERNEL);
+ computed_output = kmalloc(MAXIMUM_TEST_BUFFER_LEN + 1, GFP_KERNEL);
+ massive_input = vzalloc(OUTRAGEOUSLY_HUGE_BUFFER_LEN);
+ if (!computed_output || !offset_input || !massive_input) {
+ pr_err("chacha20 self-test malloc: FAIL\n");
+ success = false;
+ goto out;
+ }
+
+ simd_get(&simd_context);
+ for (i = 0; i < ARRAY_SIZE(chacha20_testvecs); ++i) {
+ /* Boring case */
+ memset(computed_output, 0, MAXIMUM_TEST_BUFFER_LEN + 1);
+ memset(&state, 0, sizeof(state));
+ chacha20_init(&state, chacha20_testvecs[i].key,
+ chacha20_testvecs[i].nonce);
+ chacha20(&state, computed_output, chacha20_testvecs[i].input,
+ chacha20_testvecs[i].ilen, &simd_context);
+ if (memcmp(computed_output, chacha20_testvecs[i].output,
+ chacha20_testvecs[i].ilen)) {
+ pr_err("chacha20 self-test %zu: FAIL\n", i + 1);
+ success = false;
+ }
+ for (k = chacha20_testvecs[i].ilen;
+ k < MAXIMUM_TEST_BUFFER_LEN + 1; ++k) {
+ if (computed_output[k]) {
+ pr_err("chacha20 self-test %zu (zero check): FAIL\n",
+ i + 1);
+ success = false;
+ break;
+ }
+ }
+
+ /* Unaligned case */
+ memset(computed_output, 0, MAXIMUM_TEST_BUFFER_LEN + 1);
+ memset(&state, 0, sizeof(state));
+ memcpy(offset_input + 1, chacha20_testvecs[i].input,
+ chacha20_testvecs[i].ilen);
+ memcpy(offset_key + 1, chacha20_testvecs[i].key,
+ CHACHA20_KEY_SIZE);
+ chacha20_init(&state, offset_key + 1, chacha20_testvecs[i].nonce);
+ chacha20(&state, computed_output + 1, offset_input + 1,
+ chacha20_testvecs[i].ilen, &simd_context);
+ if (memcmp(computed_output + 1, chacha20_testvecs[i].output,
+ chacha20_testvecs[i].ilen)) {
+ pr_err("chacha20 self-test %zu (unaligned): FAIL\n",
+ i + 1);
+ success = false;
+ }
+ if (computed_output[0]) {
+ pr_err("chacha20 self-test %zu (unaligned, zero check): FAIL\n",
+ i + 1);
+ success = false;
+ }
+ for (k = chacha20_testvecs[i].ilen + 1;
+ k < MAXIMUM_TEST_BUFFER_LEN + 1; ++k) {
+ if (computed_output[k]) {
+ pr_err("chacha20 self-test %zu (unaligned, zero check): FAIL\n",
+ i + 1);
+ success = false;
+ break;
+ }
+ }
+
+ /* Chunked case */
+ if (chacha20_testvecs[i].ilen <= CHACHA20_BLOCK_SIZE)
+ goto next_test;
+ memset(computed_output, 0, MAXIMUM_TEST_BUFFER_LEN + 1);
+ memset(&state, 0, sizeof(state));
+ chacha20_init(&state, chacha20_testvecs[i].key,
+ chacha20_testvecs[i].nonce);
+ chacha20(&state, computed_output, chacha20_testvecs[i].input,
+ CHACHA20_BLOCK_SIZE, &simd_context);
+ chacha20(&state, computed_output + CHACHA20_BLOCK_SIZE,
+ chacha20_testvecs[i].input + CHACHA20_BLOCK_SIZE,
+ chacha20_testvecs[i].ilen - CHACHA20_BLOCK_SIZE,
+ &simd_context);
+ if (memcmp(computed_output, chacha20_testvecs[i].output,
+ chacha20_testvecs[i].ilen)) {
+ pr_err("chacha20 self-test %zu (chunked): FAIL\n",
+ i + 1);
+ success = false;
+ }
+ for (k = chacha20_testvecs[i].ilen;
+ k < MAXIMUM_TEST_BUFFER_LEN + 1; ++k) {
+ if (computed_output[k]) {
+ pr_err("chacha20 self-test %zu (chunked, zero check): FAIL\n",
+ i + 1);
+ success = false;
+ break;
+ }
+ }
+
+next_test:
+ /* Sliding unaligned case */
+ if (chacha20_testvecs[i].ilen > CHACHA20_BLOCK_SIZE + 1 ||
+ !chacha20_testvecs[i].ilen)
+ continue;
+ for (j = 1; j < CHACHA20_BLOCK_SIZE; ++j) {
+ memset(computed_output, 0, MAXIMUM_TEST_BUFFER_LEN + 1);
+ memset(&state, 0, sizeof(state));
+ memcpy(offset_input + j, chacha20_testvecs[i].input,
+ chacha20_testvecs[i].ilen);
+ chacha20_init(&state, chacha20_testvecs[i].key,
+ chacha20_testvecs[i].nonce);
+ chacha20(&state, computed_output + j, offset_input + j,
+ chacha20_testvecs[i].ilen, &simd_context);
+ if (memcmp(computed_output + j,
+ chacha20_testvecs[i].output,
+ chacha20_testvecs[i].ilen)) {
+ pr_err("chacha20 self-test %zu (unaligned, slide %zu): FAIL\n",
+ i + 1, j);
+ success = false;
+ }
+ for (k = j; k < j; ++k) {
+ if (computed_output[k]) {
+ pr_err("chacha20 self-test %zu (unaligned, slide %zu, zero check): FAIL\n",
+ i + 1, j);
+ success = false;
+ break;
+ }
+ }
+ for (k = chacha20_testvecs[i].ilen + j;
+ k < MAXIMUM_TEST_BUFFER_LEN + 1; ++k) {
+ if (computed_output[k]) {
+ pr_err("chacha20 self-test %zu (unaligned, slide %zu, zero check): FAIL\n",
+ i + 1, j);
+ success = false;
+ break;
+ }
+ }
+ }
+ }
+ for (i = 0; i < ARRAY_SIZE(hchacha20_testvecs); ++i) {
+ memset(&derived_key, 0, sizeof(derived_key));
+ hchacha20(derived_key, hchacha20_testvecs[i].nonce,
+ hchacha20_testvecs[i].key, &simd_context);
+ cpu_to_le32_array(derived_key, ARRAY_SIZE(derived_key));
+ if (memcmp(derived_key, hchacha20_testvecs[i].output,
+ CHACHA20_KEY_SIZE)) {
+ pr_err("hchacha20 self-test %zu: FAIL\n", i + 1);
+ success = false;
+ }
+ }
+ memset(&state, 0, sizeof(state));
+ chacha20_init(&state, chacha20_testvecs[0].key,
+ chacha20_testvecs[0].nonce);
+ chacha20(&state, massive_input, massive_input,
+ OUTRAGEOUSLY_HUGE_BUFFER_LEN, &simd_context);
+ chacha20_init(&state, chacha20_testvecs[0].key,
+ chacha20_testvecs[0].nonce);
+ chacha20(&state, massive_input, massive_input,
+ OUTRAGEOUSLY_HUGE_BUFFER_LEN, DONT_USE_SIMD);
+ for (k = 0; k < OUTRAGEOUSLY_HUGE_BUFFER_LEN; ++k) {
+ if (massive_input[k]) {
+ pr_err("chacha20 self-test massive: FAIL\n");
+ success = false;
+ break;
+ }
+ }
+
+ simd_put(&simd_context);
+
+out:
+ kfree(offset_input);
+ kfree(computed_output);
+ vfree(massive_input);
+ return success;
+}
diff --git a/lib/zinc/selftest/run.h b/lib/zinc/selftest/run.h
new file mode 100644
index 000000000000..74f607a8e0e2
--- /dev/null
+++ b/lib/zinc/selftest/run.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+/*
+ * Copyright (C) 2015-2018 Jason A. Donenfeld <[email protected]>. All Rights Reserved.
+ */
+
+#ifndef _ZINC_SELFTEST_RUN_H
+#define _ZINC_SELFTEST_RUN_H
+
+#include <linux/kernel.h>
+#include <linux/printk.h>
+#include <linux/bug.h>
+
+static inline bool selftest_run(const char *name, bool (*selftest)(void),
+ bool *const nobs[], unsigned int nobs_len)
+{
+ unsigned long set = 0, subset = 0, largest_subset = 0;
+ unsigned int i;
+
+ BUILD_BUG_ON(!__builtin_constant_p(nobs_len) ||
+ nobs_len >= BITS_PER_LONG);
+
+ if (!IS_ENABLED(CONFIG_ZINC_SELFTEST))
+ return true;
+
+ for (i = 0; i < nobs_len; ++i)
+ set |= ((unsigned long)*nobs[i]) << i;
+
+ do {
+ for (i = 0; i < nobs_len; ++i)
+ *nobs[i] = BIT(i) & subset;
+ if (selftest())
+ largest_subset = max(subset, largest_subset);
+ else
+ pr_err("%s self-test combination 0x%lx: FAIL\n", name,
+ subset);
+ subset = (subset - set) & set;
+ } while (subset);
+
+ for (i = 0; i < nobs_len; ++i)
+ *nobs[i] = BIT(i) & largest_subset;
+
+ if (largest_subset == set)
+ pr_info("%s self-tests: pass\n", name);
+
+ return !WARN_ON(largest_subset != set);
+}
+
+#endif
--
Email: Herbert Xu <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
On Tue, Nov 20, 2018 at 3:19 PM Herbert Xu <[email protected]> wrote:
> Yes. In fact it's used for FIPS certification testing.
> Sure, nobody sane should be doing it. But when it comes to
> government certification... :)
The kernel does not aim toward any FIPS certification, and we're not
going to start bloating our designs to fulfill this. It's never been a
goal. Maybe ask Ted to add a FIPS mode to random.c and see what
happens... When you start arguing "because FIPS!" as your
justification, you really hit a head scratcher.
> They've already paid for the indirect
> function call so why make them go through yet another run-time
> branch?
The indirect function call in the crypto API is the performance hit.
The branch in Zinc is not, as the predictor does the correct thing
every single time. I'm not able to distinguish between the two looking
at the performance measurements between it being there and the branch
being commented out.
Give me a few more days to finish v9's latest required changes for
chacha12, and then I'll submit a revision that I think should address
the remaining technical objections raised over the last several months
we've been discussing this.
Regards,
Jason
From: Eric Biggers <[email protected]>
Now that the 32-bit ARM NEON implementation of ChaCha20 and XChaCha20
has been refactored to support varying the number of rounds, add support
for XChaCha12. This is identical to XChaCha20 except for the number of
rounds, which is 12 instead of 20.
XChaCha12 is faster than XChaCha20 but has a lower security margin,
though still greater than AES-256's since the best known attacks make it
through only 7 rounds. See the patch "crypto: chacha - add XChaCha12
support" for more details about why we need XChaCha12 support.
Reviewed-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Eric Biggers <[email protected]>
---
arch/arm/crypto/Kconfig | 2 +-
arch/arm/crypto/chacha-neon-glue.c | 21 ++++++++++++++++++++-
2 files changed, 21 insertions(+), 2 deletions(-)
diff --git a/arch/arm/crypto/Kconfig b/arch/arm/crypto/Kconfig
index 0aa1471f27d2..cc932d9bba56 100644
--- a/arch/arm/crypto/Kconfig
+++ b/arch/arm/crypto/Kconfig
@@ -117,7 +117,7 @@ config CRYPTO_CRC32_ARM_CE
select CRYPTO_HASH
config CRYPTO_CHACHA20_NEON
- tristate "NEON accelerated ChaCha20 stream cipher algorithms"
+ tristate "NEON accelerated ChaCha stream cipher algorithms"
depends on KERNEL_MODE_NEON
select CRYPTO_BLKCIPHER
select CRYPTO_CHACHA20
diff --git a/arch/arm/crypto/chacha-neon-glue.c b/arch/arm/crypto/chacha-neon-glue.c
index 385557d38634..9d6fda81986d 100644
--- a/arch/arm/crypto/chacha-neon-glue.c
+++ b/arch/arm/crypto/chacha-neon-glue.c
@@ -1,5 +1,6 @@
/*
- * ChaCha20 (RFC7539) and XChaCha20 stream ciphers, NEON accelerated
+ * ARM NEON accelerated ChaCha and XChaCha stream ciphers,
+ * including ChaCha20 (RFC7539)
*
* Copyright (C) 2016 Linaro, Ltd. <[email protected]>
*
@@ -154,6 +155,22 @@ static struct skcipher_alg algs[] = {
.setkey = crypto_chacha20_setkey,
.encrypt = xchacha_neon,
.decrypt = xchacha_neon,
+ }, {
+ .base.cra_name = "xchacha12",
+ .base.cra_driver_name = "xchacha12-neon",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = XCHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .walksize = 4 * CHACHA_BLOCK_SIZE,
+ .setkey = crypto_chacha12_setkey,
+ .encrypt = xchacha_neon,
+ .decrypt = xchacha_neon,
}
};
@@ -180,3 +197,5 @@ MODULE_ALIAS_CRYPTO("chacha20");
MODULE_ALIAS_CRYPTO("chacha20-neon");
MODULE_ALIAS_CRYPTO("xchacha20");
MODULE_ALIAS_CRYPTO("xchacha20-neon");
+MODULE_ALIAS_CRYPTO("xchacha12");
+MODULE_ALIAS_CRYPTO("xchacha12-neon");
--
2.19.1.930.g4563a0d9d0-goog
On Mon, Nov 19, 2018 at 07:13:07AM +0100, Jason A. Donenfeld wrote:
> Hi Herbert,
>
> On Mon, Nov 19, 2018 at 6:25 AM Herbert Xu <[email protected]> wrote:
> > My proposal is to merge the zinc interface as is, but to invert
> > how we place the algorithm implementations. IOW the implementations
> > should stay where they are now, with in the crypto API. However,
> > we will provide direct access to them for zinc without going through
> > the crypto API. IOW we'll just export the functions directly.
>
> Sorry, but there isn't a chance I'll agree to this. The whole idea is
> to have a clean place to focus on synchronous software
> implementations, and not keep it tangled up with the asynchronous API.
> If WireGuard and Zinc go in, it's going to be done right, not in a way
> that introduces more problems and organizational complexity. Avoiding
> the solution proposed here is kind of the point. And given that
> cryptographic code is so security sensitive, I want to make sure this
> is done right, as opposed to rushing it with some half-baked
> concoction that will be maybe possibly be replaced "later". From
> talking to folks at Plumbers, I believe most of the remaining issues
> are taken care of by the upcoming v9, and that you're overstating the
> status of discussions regarding that.
Will v9 include a documentation file for Zinc in Documentation/crypto/?
That's been suggested several times.
>
> I think the remaining issue right now is how to order my series and
> Eric's series. If Eric's goes in first, it means that I can either a)
> spend some time developing Zinc further _now_ to support chacha12 and
> keep the top two conversion patches, or b) just drop the top two
> conversion patches and work that out carefully with Eric after. I
> think (b) would be better, but I'm happy to do (a) if you disagree.
> And as I mentioned in the last email, I'd prefer Eric's work to go in
> after Zinc, but I don't think the reasoning for that is particularly
> strong, so it seems fine to merge Eric's work first.
>
> I'll post v9 pretty soon and you can see how things are shaping up.
> Hopefully before then Eric/Ard/you can provide some feedback on
> whether you'd prefer (a) or (b) above.
>
I'd still prefer to see the conversion patches included. Skipping them would be
kicking the can down the road and avoiding issues that will need to be addressed
anyway. Like you, I don't want a "half-baked concoction that will be maybe
possibly be replaced 'later'" :-)
Either way though, it would make things much easier if you at least named the
files, structures, constants, etc. "ChaCha" rather than "ChaCha20" from the
start where appropriate. For an example, see the commit "crypto: chacha -
prepare for supporting non-20-round variants" on my "adiantum-zinc" branch:
https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git/commit/?h=adiantum-zinc&id=754af8d7d39f31238114426e39786c84d7cc0f98
Then the actual introduction of the 12-round variant is much less noisy.
- Eric
Hi Jason:
On Mon, Nov 19, 2018 at 07:13:07AM +0100, Jason A. Donenfeld wrote:
>
> Sorry, but there isn't a chance I'll agree to this. The whole idea is
> to have a clean place to focus on synchronous software
> implementations, and not keep it tangled up with the asynchronous API.
There is nothing asynchronous in the relevant crypto code at all.
The underlying CPU-based software implementations are all completely
synchronous, including the architecture-specific ones such as
x86/arm.
So I don't understand why you are rejecting it.
Cheers,
--
Email: Herbert Xu <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
Hi Ard,
On Tue, Nov 06, 2018 at 03:28:24PM +0100, Ard Biesheuvel wrote:
> On 6 November 2018 at 00:25, Eric Biggers <[email protected]> wrote:
> > From: Eric Biggers <[email protected]>
> >
> > In preparation for exposing a low-level Poly1305 API which implements
> > the ε-almost-∆-universal (εA∆U) hash function underlying the Poly1305
> > MAC and supports block-aligned inputs only, create structures
> > poly1305_key and poly1305_state which hold the limbs of the Poly1305
> > "r" key and accumulator, respectively.
> >
> > Signed-off-by: Eric Biggers <[email protected]>
> > ---
> > arch/x86/crypto/poly1305_glue.c | 20 +++++++------
> > crypto/poly1305_generic.c | 52 ++++++++++++++++-----------------
> > include/crypto/poly1305.h | 12 ++++++--
> > 3 files changed, 47 insertions(+), 37 deletions(-)
> >
> > diff --git a/arch/x86/crypto/poly1305_glue.c b/arch/x86/crypto/poly1305_glue.c
> > index f012b7e28ad1..88cc01506c84 100644
> > --- a/arch/x86/crypto/poly1305_glue.c
> > +++ b/arch/x86/crypto/poly1305_glue.c
> > @@ -83,35 +83,37 @@ static unsigned int poly1305_simd_blocks(struct poly1305_desc_ctx *dctx,
> > if (poly1305_use_avx2 && srclen >= POLY1305_BLOCK_SIZE * 4) {
> > if (unlikely(!sctx->wset)) {
> > if (!sctx->uset) {
> > - memcpy(sctx->u, dctx->r, sizeof(sctx->u));
> > - poly1305_simd_mult(sctx->u, dctx->r);
> > + memcpy(sctx->u, dctx->r.r, sizeof(sctx->u));
> > + poly1305_simd_mult(sctx->u, dctx->r.r);
> > sctx->uset = true;
> > }
> > memcpy(sctx->u + 5, sctx->u, sizeof(sctx->u));
> > - poly1305_simd_mult(sctx->u + 5, dctx->r);
> > + poly1305_simd_mult(sctx->u + 5, dctx->r.r);
> > memcpy(sctx->u + 10, sctx->u + 5, sizeof(sctx->u));
> > - poly1305_simd_mult(sctx->u + 10, dctx->r);
> > + poly1305_simd_mult(sctx->u + 10, dctx->r.r);
> > sctx->wset = true;
> > }
> > blocks = srclen / (POLY1305_BLOCK_SIZE * 4);
> > - poly1305_4block_avx2(dctx->h, src, dctx->r, blocks, sctx->u);
> > + poly1305_4block_avx2(dctx->h.h, src, dctx->r.r, blocks,
> > + sctx->u);
> > src += POLY1305_BLOCK_SIZE * 4 * blocks;
> > srclen -= POLY1305_BLOCK_SIZE * 4 * blocks;
> > }
> > #endif
> > if (likely(srclen >= POLY1305_BLOCK_SIZE * 2)) {
> > if (unlikely(!sctx->uset)) {
> > - memcpy(sctx->u, dctx->r, sizeof(sctx->u));
> > - poly1305_simd_mult(sctx->u, dctx->r);
> > + memcpy(sctx->u, dctx->r.r, sizeof(sctx->u));
> > + poly1305_simd_mult(sctx->u, dctx->r.r);
> > sctx->uset = true;
> > }
> > blocks = srclen / (POLY1305_BLOCK_SIZE * 2);
> > - poly1305_2block_sse2(dctx->h, src, dctx->r, blocks, sctx->u);
> > + poly1305_2block_sse2(dctx->h.h, src, dctx->r.r, blocks,
> > + sctx->u);
> > src += POLY1305_BLOCK_SIZE * 2 * blocks;
> > srclen -= POLY1305_BLOCK_SIZE * 2 * blocks;
> > }
> > if (srclen >= POLY1305_BLOCK_SIZE) {
> > - poly1305_block_sse2(dctx->h, src, dctx->r, 1);
> > + poly1305_block_sse2(dctx->h.h, src, dctx->r.r, 1);
> > srclen -= POLY1305_BLOCK_SIZE;
> > }
> > return srclen;
> > diff --git a/crypto/poly1305_generic.c b/crypto/poly1305_generic.c
> > index 47d3a6b83931..a23173f351b7 100644
> > --- a/crypto/poly1305_generic.c
> > +++ b/crypto/poly1305_generic.c
> > @@ -38,7 +38,7 @@ int crypto_poly1305_init(struct shash_desc *desc)
> > {
> > struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
> >
> > - memset(dctx->h, 0, sizeof(dctx->h));
> > + memset(dctx->h.h, 0, sizeof(dctx->h.h));
> > dctx->buflen = 0;
> > dctx->rset = false;
> > dctx->sset = false;
> > @@ -50,11 +50,11 @@ EXPORT_SYMBOL_GPL(crypto_poly1305_init);
> > static void poly1305_setrkey(struct poly1305_desc_ctx *dctx, const u8 *key)
> > {
> > /* r &= 0xffffffc0ffffffc0ffffffc0fffffff */
> > - dctx->r[0] = (get_unaligned_le32(key + 0) >> 0) & 0x3ffffff;
> > - dctx->r[1] = (get_unaligned_le32(key + 3) >> 2) & 0x3ffff03;
> > - dctx->r[2] = (get_unaligned_le32(key + 6) >> 4) & 0x3ffc0ff;
> > - dctx->r[3] = (get_unaligned_le32(key + 9) >> 6) & 0x3f03fff;
> > - dctx->r[4] = (get_unaligned_le32(key + 12) >> 8) & 0x00fffff;
> > + dctx->r.r[0] = (get_unaligned_le32(key + 0) >> 0) & 0x3ffffff;
> > + dctx->r.r[1] = (get_unaligned_le32(key + 3) >> 2) & 0x3ffff03;
> > + dctx->r.r[2] = (get_unaligned_le32(key + 6) >> 4) & 0x3ffc0ff;
> > + dctx->r.r[3] = (get_unaligned_le32(key + 9) >> 6) & 0x3f03fff;
> > + dctx->r.r[4] = (get_unaligned_le32(key + 12) >> 8) & 0x00fffff;
> > }
> >
> > static void poly1305_setskey(struct poly1305_desc_ctx *dctx, const u8 *key)
> > @@ -107,22 +107,22 @@ static unsigned int poly1305_blocks(struct poly1305_desc_ctx *dctx,
> > srclen = datalen;
> > }
> >
> > - r0 = dctx->r[0];
> > - r1 = dctx->r[1];
> > - r2 = dctx->r[2];
> > - r3 = dctx->r[3];
> > - r4 = dctx->r[4];
> > + r0 = dctx->r.r[0];
> > + r1 = dctx->r.r[1];
> > + r2 = dctx->r.r[2];
> > + r3 = dctx->r.r[3];
> > + r4 = dctx->r.r[4];
> >
> > s1 = r1 * 5;
> > s2 = r2 * 5;
> > s3 = r3 * 5;
> > s4 = r4 * 5;
> >
> > - h0 = dctx->h[0];
> > - h1 = dctx->h[1];
> > - h2 = dctx->h[2];
> > - h3 = dctx->h[3];
> > - h4 = dctx->h[4];
> > + h0 = dctx->h.h[0];
> > + h1 = dctx->h.h[1];
> > + h2 = dctx->h.h[2];
> > + h3 = dctx->h.h[3];
> > + h4 = dctx->h.h[4];
> >
> > while (likely(srclen >= POLY1305_BLOCK_SIZE)) {
> >
> > @@ -157,11 +157,11 @@ static unsigned int poly1305_blocks(struct poly1305_desc_ctx *dctx,
> > srclen -= POLY1305_BLOCK_SIZE;
> > }
> >
> > - dctx->h[0] = h0;
> > - dctx->h[1] = h1;
> > - dctx->h[2] = h2;
> > - dctx->h[3] = h3;
> > - dctx->h[4] = h4;
> > + dctx->h.h[0] = h0;
> > + dctx->h.h[1] = h1;
> > + dctx->h.h[2] = h2;
> > + dctx->h.h[3] = h3;
> > + dctx->h.h[4] = h4;
> >
> > return srclen;
> > }
> > @@ -220,11 +220,11 @@ int crypto_poly1305_final(struct shash_desc *desc, u8 *dst)
> > }
> >
> > /* fully carry h */
> > - h0 = dctx->h[0];
> > - h1 = dctx->h[1];
> > - h2 = dctx->h[2];
> > - h3 = dctx->h[3];
> > - h4 = dctx->h[4];
> > + h0 = dctx->h.h[0];
> > + h1 = dctx->h.h[1];
> > + h2 = dctx->h.h[2];
> > + h3 = dctx->h.h[3];
> > + h4 = dctx->h.h[4];
> >
> > h2 += (h1 >> 26); h1 = h1 & 0x3ffffff;
> > h3 += (h2 >> 26); h2 = h2 & 0x3ffffff;
> > diff --git a/include/crypto/poly1305.h b/include/crypto/poly1305.h
> > index f718a19da82f..493244c46664 100644
> > --- a/include/crypto/poly1305.h
> > +++ b/include/crypto/poly1305.h
> > @@ -13,13 +13,21 @@
> > #define POLY1305_KEY_SIZE 32
> > #define POLY1305_DIGEST_SIZE 16
> >
> > +struct poly1305_key {
> > + u32 r[5]; /* key, base 2^26 */
> > +};
> > +
> > +struct poly1305_state {
> > + u32 h[5]; /* accumulator, base 2^26 */
> > +};
> > +
>
> Sorry to bikeshed, but wouldn't it make more sense to have single definition
>
> struct poly1305_val {
> u32 v[5]; /* base 2^26 */
> };
>
> and have 'key' and 'accum[ulator]' fields of type struct poly1305_val
> in the struct below?
>
I prefer separate types so that the type system enforces that a key is never
accidentally used as an accumulator, and vice versa. Then the poly1305_core_*
functions will be harder to misuse, and the Poly1305 MAC implementations harder
to get wrong.
The key also has certain bits clear whereas the accumulator does not. In the
future, the Poly1305 C implementation might use base 2^32 and take advantage of
this. In that case, the two inputs to each multiplication won't be
interchangeable, so using the same type for both would be extra confusing.
Having a poly1305_val nested inside poly1305_key and poly1305_state would work,
but seemed excessive.
> > struct poly1305_desc_ctx {
> > /* key */
> > - u32 r[5];
> > + struct poly1305_key r;
> > /* finalize key */
> > u32 s[4];
> > /* accumulator */
> > - u32 h[5];
> > + struct poly1305_state h;
> > /* partial buffer */
> > u8 buf[POLY1305_BLOCK_SIZE];
> > /* bytes used in partial buffer */
> > --
Thanks,
- Eric
Hi Herbert,
On Tue, Nov 20, 2018 at 4:06 AM Herbert Xu <[email protected]> wrote:
> > I'd still prefer to see the conversion patches included. Skipping them would be
> > kicking the can down the road and avoiding issues that will need to be addressed
> > anyway. Like you, I don't want a "half-baked concoction that will be maybe
> > possibly be replaced 'later'" :-)
>
> Are you guys talking about the conversion patches to eliminate the
> two copies of chacha code that would otherwise exist in crypto as
> well as in zinc?
>
> If so I think that's not negotiable. Having two copies of the same
> code is just not acceptable.
Yes, that's the topic. Eric already expressed his preference to keep
them, and I agreed, so the plan is to keep them.
Jason
From: Eric Biggers <[email protected]>
Add support for the Adiantum encryption mode to fscrypt. Adiantum is a
tweakable, length-preserving encryption mode with security provably
reducible to that of XChaCha12 and AES-256, subject to a security bound.
It's also a true wide-block mode, unlike XTS. See the paper
"Adiantum: length-preserving encryption for entry-level processors"
(https://eprint.iacr.org/2018/720.pdf) for full details;
also see the crypto API patch which added Adiantum.
On sufficiently long inputs, Adiantum's performance-critical parts are
XChaCha12 and the NH hash function. These algorithms are fast even on
processors without dedicated crypto instructions. Adiantum makes it
feasible to enable storage encryption on low-end mobile devices that
lack AES instructions; currently such devices are unencrypted. On ARM
Cortex-A7, on 4096-byte messages Adiantum encryption is about 4 times
faster than AES-256-XTS encryption; decryption is about 5 times faster.
Adiantum is also suitable to replace CTS-CBC for fscrypt's filenames
encryption, fixing the information leakage in encrypted filenames when
two filenames in a directory share a common prefix.
Adiantum accepts long IVs, so in fscrypt we include the 16-byte
per-inode nonce in the IVs too, and we allow userspace to choose to use
the master key directly rather than deriving per-file keys. This is
especially desirable because each Adiantum tfm (crypto_skcipher) uses
more memory than an AES-XTS tfm, since Adiantum has more sub-tfms as
well as a long subkey for NH.
Signed-off-by: Eric Biggers <[email protected]>
---
Documentation/filesystems/fscrypt.rst | 187 ++++++++-------
fs/crypto/crypto.c | 35 +--
fs/crypto/fname.c | 22 +-
fs/crypto/fscrypt_private.h | 66 +++++-
fs/crypto/keyinfo.c | 322 ++++++++++++++++++++------
fs/crypto/policy.c | 5 +-
include/uapi/linux/fs.h | 4 +-
7 files changed, 454 insertions(+), 187 deletions(-)
diff --git a/Documentation/filesystems/fscrypt.rst b/Documentation/filesystems/fscrypt.rst
index cfbc18f0d9c9..4e64d0fee07b 100644
--- a/Documentation/filesystems/fscrypt.rst
+++ b/Documentation/filesystems/fscrypt.rst
@@ -132,47 +132,31 @@ designed for this purpose be used, such as scrypt, PBKDF2, or Argon2.
Per-file keys
-------------
-Master keys are not used to encrypt file contents or names directly.
-Instead, a unique key is derived for each encrypted file, including
-each regular file, directory, and symbolic link. This has several
-advantages:
-
-- In cryptosystems, the same key material should never be used for
- different purposes. Using the master key as both an XTS key for
- contents encryption and as a CTS-CBC key for filenames encryption
- would violate this rule.
-- Per-file keys simplify the choice of IVs (Initialization Vectors)
- for contents encryption. Without per-file keys, to ensure IV
- uniqueness both the inode and logical block number would need to be
- encoded in the IVs. This would make it impossible to renumber
- inodes, which e.g. ``resize2fs`` can do when resizing an ext4
- filesystem. With per-file keys, it is sufficient to encode just the
- logical block number in the IVs.
-- Per-file keys strengthen the encryption of filenames, where IVs are
- reused out of necessity. With a unique key per directory, IV reuse
- is limited to within a single directory.
-- Per-file keys allow individual files to be securely erased simply by
- securely erasing their keys. (Not yet implemented.)
-
-A KDF (Key Derivation Function) is used to derive per-file keys from
-the master key. This is done instead of wrapping a randomly-generated
-key for each file because it reduces the size of the encryption xattr,
-which for some filesystems makes the xattr more likely to fit in-line
-in the filesystem's inode table. With a KDF, only a 16-byte nonce is
-required --- long enough to make key reuse extremely unlikely. A
-wrapped key, on the other hand, would need to be up to 64 bytes ---
-the length of an AES-256-XTS key. Furthermore, currently there is no
-requirement to support unlocking a file with multiple alternative
-master keys or to support rotating master keys. Instead, the master
-keys may be wrapped in userspace, e.g. as done by the `fscrypt
-<https://github.com/google/fscrypt>`_ tool.
-
-The current KDF encrypts the master key using the 16-byte nonce as an
-AES-128-ECB key. The output is used as the derived key. If the
-output is longer than needed, then it is truncated to the needed
-length. Truncation is the norm for directories and symlinks, since
-those use the CTS-CBC encryption mode which requires a key half as
-long as that required by the XTS encryption mode.
+Since each master key can protect many files, it is necessary to
+"tweak" the encryption of each file, so that the same plaintext in two
+files doesn't map to the same ciphertext, or vice versa.
+
+In most cases, fscrypt solves this problem by deriving per-file keys.
+When a new encrypted inode (regular file, directory, or symlink) is
+created, fscrypt generates a 16-byte nonce uniformly at random and
+stores it in the inode's encryption xattr. Then, a KDF (Key
+Derivation Function) is used to derive an inode-specific encryption
+key from the master key and nonce.
+
+The Adiantum encryption mode (see `Encryption modes and usage`_) is
+special, since it accepts long IVs and is suited for both contents and
+filenames encryption. For it, fscrypt includes the 16-byte nonce in
+the IVs, and users can choose to use the master key for Adiantum
+encryption directly, for added efficiency. In this configuration, no
+per-file keys are derived. However, when doing this, users must take
+care not to reuse the same master key for any other modes.
+
+Below, the KDF and design considerations are described in more detail.
+
+The current KDF works by encrypting the master key with AES-128-ECB,
+using the 16-byte nonce as the AES key. The output is used as the
+derived key. If the output is longer than needed, then it is
+truncated to the needed length.
Note: this KDF meets the primary security requirement, which is to
produce unique derived keys that preserve the entropy of the master
@@ -181,6 +165,28 @@ However, it is nonstandard and has some problems such as being
reversible, so it is generally considered to be a mistake! It may be
replaced with HKDF or another more standard KDF in the future.
+Key derivation was chosen over key wrapping because wrapped keys would
+require larger xattrs which would be less likely to fit in-line in the
+filesystem's inode table, and there didn't appear to be any
+significant advantages to key wrapping. In particular, currently
+there is no requirement to support unlocking a file with multiple
+alternative master keys or to support rotating master keys. Instead,
+the master keys may be wrapped in userspace, e.g. as done by the
+`fscrypt <https://github.com/google/fscrypt>`_ tool.
+
+Including the inode number in the IVs was considered. However, it was
+rejected as it would have prevented ext4 filesystems from being
+resized, and by itself still wouldn't have been sufficient to prevent
+the same key from being directly reused for both XTS and CTS-CBC.
+
+Including the per-inode nonce in the IVs would allow filesystem
+resizing, but it wouldn't allow key reuse between two different modes,
+nor would it be compatible with XTS and CTS-CBC since a 16-byte IV
+isn't long enough to contain both a collision-resistant nonce and a
+block offset. However, this method works well for Adiantum, which
+accepts longer IVs and is suited for both contents and filenames
+encryption.
+
Encryption modes and usage
==========================
@@ -191,54 +197,76 @@ Currently, the following pairs of encryption modes are supported:
- AES-256-XTS for contents and AES-256-CTS-CBC for filenames
- AES-128-CBC for contents and AES-128-CTS-CBC for filenames
+- Adiantum for both contents and filenames
+
+If unsure, you should use the (AES-256-XTS, AES-256-CTS-CBC) pair.
-It is strongly recommended to use AES-256-XTS for contents encryption.
AES-128-CBC was added only for low-powered embedded devices with
crypto accelerators such as CAAM or CESA that do not support XTS.
+Adiantum is a (primarily) stream cipher-based mode that was designed
+primarily for CPUs that don't support AES instructions. Though
+Adiantum actually provides a stronger formal notion of security than
+XTS and CTS-CBC (since it's a true wide-block mode), it's also newer
+and depends on the security of XChaCha12 in addition to AES-256.
+Adiantum support is only available if it has been enabled in the
+crypto API via CONFIG_CRYPTO_ADIANTUM. Also, on ARM platforms, to get
+good performance CONFIG_CRYPTO_CHACHA20_NEON and
+CONFIG_CRYPTO_NHPOLY1305_NEON must be enabled.
+
New encryption modes can be added relatively easily, without changes
to individual filesystems. However, authenticated encryption (AE)
modes are not currently supported because of the difficulty of dealing
with ciphertext expansion.
+Contents encryption
+-------------------
+
For file contents, each filesystem block is encrypted independently.
Currently, only the case where the filesystem block size is equal to
-the system's page size (usually 4096 bytes) is supported. With the
-XTS mode of operation (recommended), the logical block number within
-the file is used as the IV. With the CBC mode of operation (not
-recommended), ESSIV is used; specifically, the IV for CBC is the
-logical block number encrypted with AES-256, where the AES-256 key is
-the SHA-256 hash of the inode's data encryption key.
-
-For filenames, the full filename is encrypted at once. Because of the
-requirements to retain support for efficient directory lookups and
-filenames of up to 255 bytes, a constant initialization vector (IV) is
-used. However, each encrypted directory uses a unique key, which
-limits IV reuse to within a single directory. Note that IV reuse in
-the context of CTS-CBC encryption means that when the original
-filenames share a common prefix at least as long as the cipher block
-size (16 bytes for AES), the corresponding encrypted filenames will
-also share a common prefix. This is undesirable; it may be fixed in
-the future by switching to an encryption mode that is a strong
-pseudorandom permutation on arbitrary-length messages, e.g. the HEH
-(Hash-Encrypt-Hash) mode.
-
-Since filenames are encrypted with the CTS-CBC mode of operation, the
-plaintext and ciphertext filenames need not be multiples of the AES
-block size, i.e. 16 bytes. However, the minimum size that can be
-encrypted is 16 bytes, so shorter filenames are NUL-padded to 16 bytes
-before being encrypted. In addition, to reduce leakage of filename
-lengths via their ciphertexts, all filenames are NUL-padded to the
-next 4, 8, 16, or 32-byte boundary (configurable). 32 is recommended
-since this provides the best confidentiality, at the cost of making
-directory entries consume slightly more space. Note that since NUL
-(``\0``) is not otherwise a valid character in filenames, the padding
-will never produce duplicate plaintexts.
+the system's page size (usually 4096 bytes) is supported. IVs are
+chosen as follows, depending on the contents encryption mode:
+
+- XTS: the logical block number within the file.
+- CBC: ESSIV, specifically the logical block number within the file
+ encrypted with AES-256, where the AES-256 key is the SHA-256 hash of
+ the inode's data encryption key.
+- Adiantum: the logical block number within the file concatenated with
+ the per-file nonce. (As noted earlier, including the nonce makes it
+ safe to use the same key for many files.)
+
+Filenames encryption
+--------------------
+
+For filenames, each full filename is encrypted at once. Because of
+the requirements to retain support for efficient directory lookups and
+filenames of up to 255 bytes, the same IV is used for every filename
+in a directory.
+
+However, each encrypted directory still uses a unique key; or
+alternatively has the inode's nonce included in the IV (for Adiantum).
+Thus, IV reuse is limited to within a single directory.
+
+With CTS-CBC, the IV reuse means that when the plaintext filenames
+share a common prefix at least as long as the cipher block size (16
+bytes for AES), the corresponding encrypted filenames will also share
+a common prefix. This is undesirable. Adiantum does not have this
+weakness, as it is a super-pseudorandom permutation.
+
+All supported filenames encryption modes accept any plaintext length
+>= 16 bytes; cipher block alignment is not required. However,
+filenames shorter than 16 bytes are NUL-padded to 16 bytes before
+being encrypted. In addition, to reduce leakage of filename lengths
+via their ciphertexts, all filenames are NUL-padded to the next 4, 8,
+16, or 32-byte boundary (configurable). 32 is recommended since this
+provides the best confidentiality, at the cost of making directory
+entries consume slightly more space. Note that since NUL (``\0``) is
+not otherwise a valid character in filenames, the padding will never
+produce duplicate plaintexts.
Symbolic link targets are considered a type of filename and are
-encrypted in the same way as filenames in directory entries. Each
-symlink also uses a unique key; hence, the hardcoded IV is not a
-problem for symlinks.
+encrypted in the same way as filenames in directory entries, except
+that IV reuse is not a problem as each symlink has its own inode.
User API
========
@@ -272,9 +300,12 @@ This structure must be initialized as follows:
and FS_ENCRYPTION_MODE_AES_256_CTS (4) for
``filenames_encryption_mode``.
-- ``flags`` must be set to a value from ``<linux/fs.h>`` which
+- ``flags`` must contain a value from ``<linux/fs.h>`` which
identifies the amount of NUL-padding to use when encrypting
- filenames. If unsure, use FS_POLICY_FLAGS_PAD_32 (0x3).
+ filenames. In addition, if the chosen encryption modes are both
+ FS_ENCRYPTION_MODE_ADIANTUM, this can contain FS_POLICY_FLAGS_DIRECT
+ to specify that the master key should be used directly, without key
+ derivation. If unsure, use FS_POLICY_FLAGS_PAD_32 (0x3).
- ``master_key_descriptor`` specifies how to find the master key in
the keyring; see `Adding keys`_. It is up to userspace to choose a
diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c
index 0f46cf550907..5dd59e790ad3 100644
--- a/fs/crypto/crypto.c
+++ b/fs/crypto/crypto.c
@@ -133,15 +133,32 @@ struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *inode, gfp_t gfp_flags)
}
EXPORT_SYMBOL(fscrypt_get_ctx);
+void fscrypt_prepare_iv(union fscrypt_iv *iv, u64 lblk_num,
+ const struct fscrypt_info *ci)
+{
+ if (ci->ci_mode->uses_long_ivs) {
+ /* Using lblk_num and nonce as tweak */
+ iv->long_iv.index = cpu_to_le64(lblk_num);
+ memcpy(iv->long_iv.nonce, ci->ci_nonce,
+ FS_KEY_DERIVATION_NONCE_SIZE);
+ iv->long_iv.unused = 0;
+ } else {
+ /* Using only lblk_num as tweak (key was derived from nonce) */
+ iv->short_iv.index = cpu_to_le64(lblk_num);
+ iv->short_iv.unused = 0;
+ if (ci->ci_essiv_tfm != NULL) {
+ crypto_cipher_encrypt_one(ci->ci_essiv_tfm, (u8 *)iv,
+ (const u8 *)iv);
+ }
+ }
+}
+
int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw,
u64 lblk_num, struct page *src_page,
struct page *dest_page, unsigned int len,
unsigned int offs, gfp_t gfp_flags)
{
- struct {
- __le64 index;
- u8 padding[FS_IV_SIZE - sizeof(__le64)];
- } iv;
+ union fscrypt_iv iv;
struct skcipher_request *req = NULL;
DECLARE_CRYPTO_WAIT(wait);
struct scatterlist dst, src;
@@ -151,15 +168,7 @@ int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw,
BUG_ON(len == 0);
- BUILD_BUG_ON(sizeof(iv) != FS_IV_SIZE);
- BUILD_BUG_ON(AES_BLOCK_SIZE != FS_IV_SIZE);
- iv.index = cpu_to_le64(lblk_num);
- memset(iv.padding, 0, sizeof(iv.padding));
-
- if (ci->ci_essiv_tfm != NULL) {
- crypto_cipher_encrypt_one(ci->ci_essiv_tfm, (u8 *)&iv,
- (u8 *)&iv);
- }
+ fscrypt_prepare_iv(&iv, lblk_num, ci);
req = skcipher_request_alloc(tfm, gfp_flags);
if (!req)
diff --git a/fs/crypto/fname.c b/fs/crypto/fname.c
index d7a0f682ca12..c60ae8f70395 100644
--- a/fs/crypto/fname.c
+++ b/fs/crypto/fname.c
@@ -40,10 +40,11 @@ int fname_encrypt(struct inode *inode, const struct qstr *iname,
{
struct skcipher_request *req = NULL;
DECLARE_CRYPTO_WAIT(wait);
- struct crypto_skcipher *tfm = inode->i_crypt_info->ci_ctfm;
- int res = 0;
- char iv[FS_CRYPTO_BLOCK_SIZE];
+ struct fscrypt_info *ci = inode->i_crypt_info;
+ struct crypto_skcipher *tfm = ci->ci_ctfm;
+ union fscrypt_iv iv;
struct scatterlist sg;
+ int res;
/*
* Copy the filename to the output buffer for encrypting in-place and
@@ -55,7 +56,7 @@ int fname_encrypt(struct inode *inode, const struct qstr *iname,
memset(out + iname->len, 0, olen - iname->len);
/* Initialize the IV */
- memset(iv, 0, FS_CRYPTO_BLOCK_SIZE);
+ fscrypt_prepare_iv(&iv, 0, ci);
/* Set up the encryption request */
req = skcipher_request_alloc(tfm, GFP_NOFS);
@@ -65,7 +66,7 @@ int fname_encrypt(struct inode *inode, const struct qstr *iname,
CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
crypto_req_done, &wait);
sg_init_one(&sg, out, olen);
- skcipher_request_set_crypt(req, &sg, &sg, olen, iv);
+ skcipher_request_set_crypt(req, &sg, &sg, olen, &iv);
/* Do the encryption */
res = crypto_wait_req(crypto_skcipher_encrypt(req), &wait);
@@ -94,9 +95,10 @@ static int fname_decrypt(struct inode *inode,
struct skcipher_request *req = NULL;
DECLARE_CRYPTO_WAIT(wait);
struct scatterlist src_sg, dst_sg;
- struct crypto_skcipher *tfm = inode->i_crypt_info->ci_ctfm;
- int res = 0;
- char iv[FS_CRYPTO_BLOCK_SIZE];
+ struct fscrypt_info *ci = inode->i_crypt_info;
+ struct crypto_skcipher *tfm = ci->ci_ctfm;
+ union fscrypt_iv iv;
+ int res;
/* Allocate request */
req = skcipher_request_alloc(tfm, GFP_NOFS);
@@ -107,12 +109,12 @@ static int fname_decrypt(struct inode *inode,
crypto_req_done, &wait);
/* Initialize IV */
- memset(iv, 0, FS_CRYPTO_BLOCK_SIZE);
+ fscrypt_prepare_iv(&iv, 0, ci);
/* Create decryption request */
sg_init_one(&src_sg, iname->name, iname->len);
sg_init_one(&dst_sg, oname->name, oname->len);
- skcipher_request_set_crypt(req, &src_sg, &dst_sg, iname->len, iv);
+ skcipher_request_set_crypt(req, &src_sg, &dst_sg, iname->len, &iv);
res = crypto_wait_req(crypto_skcipher_decrypt(req), &wait);
skcipher_request_free(req);
if (res < 0) {
diff --git a/fs/crypto/fscrypt_private.h b/fs/crypto/fscrypt_private.h
index 79debfc9cef9..a3ec179051dc 100644
--- a/fs/crypto/fscrypt_private.h
+++ b/fs/crypto/fscrypt_private.h
@@ -17,7 +17,6 @@
#include <crypto/hash.h>
/* Encryption parameters */
-#define FS_IV_SIZE 16
#define FS_KEY_DERIVATION_NONCE_SIZE 16
/**
@@ -52,16 +51,42 @@ struct fscrypt_symlink_data {
} __packed;
/*
- * A pointer to this structure is stored in the file system's in-core
- * representation of an inode.
+ * fscrypt_info - the "encryption key" for an inode
+ *
+ * When an encrypted file's key is made available, an instance of this struct is
+ * allocated and stored in ->i_crypt_info. Once created, it remains until the
+ * inode is evicted.
*/
struct fscrypt_info {
+
+ /* The actual crypto transform used for encryption and decryption */
+ struct crypto_skcipher *ci_ctfm;
+
+ /*
+ * Cipher for ESSIV IV generation. Only set for CBC contents
+ * encryption, otherwise is NULL.
+ */
+ struct crypto_cipher *ci_essiv_tfm;
+
+ /*
+ * Encryption mode used for this inode. It corresponds to either
+ * ci_data_mode or ci_filename_mode, depending on the inode type.
+ */
+ struct fscrypt_mode *ci_mode;
+
+ /*
+ * If non-NULL, then this inode uses a master key directly rather than a
+ * derived key, and ci_ctfm will equal ci_master_key->mk_ctfm.
+ * Otherwise, this inode uses a derived key.
+ */
+ struct fscrypt_master_key *ci_master_key;
+
+ /* fields from the fscrypt_context */
u8 ci_data_mode;
u8 ci_filename_mode;
u8 ci_flags;
- struct crypto_skcipher *ci_ctfm;
- struct crypto_cipher *ci_essiv_tfm;
- u8 ci_master_key[FS_KEY_DESCRIPTOR_SIZE];
+ u8 ci_master_key_descriptor[FS_KEY_DESCRIPTOR_SIZE];
+ u8 ci_nonce[FS_KEY_DERIVATION_NONCE_SIZE];
};
typedef enum {
@@ -83,6 +108,10 @@ static inline bool fscrypt_valid_enc_modes(u32 contents_mode,
filenames_mode == FS_ENCRYPTION_MODE_AES_256_CTS)
return true;
+ if (contents_mode == FS_ENCRYPTION_MODE_ADIANTUM &&
+ filenames_mode == FS_ENCRYPTION_MODE_ADIANTUM)
+ return true;
+
return false;
}
@@ -107,6 +136,21 @@ fscrypt_msg(struct super_block *sb, const char *level, const char *fmt, ...);
#define fscrypt_err(sb, fmt, ...) \
fscrypt_msg(sb, KERN_ERR, fmt, ##__VA_ARGS__)
+union fscrypt_iv {
+ struct {
+ __le64 index;
+ __le64 unused;
+ } short_iv;
+ struct {
+ __le64 index;
+ u8 nonce[FS_KEY_DERIVATION_NONCE_SIZE];
+ __le64 unused;
+ } long_iv;
+};
+
+void fscrypt_prepare_iv(union fscrypt_iv *iv, u64 lblk_num,
+ const struct fscrypt_info *ci);
+
/* fname.c */
extern int fname_encrypt(struct inode *inode, const struct qstr *iname,
u8 *out, unsigned int olen);
@@ -115,6 +159,16 @@ extern bool fscrypt_fname_encrypted_size(const struct inode *inode,
u32 *encrypted_len_ret);
/* keyinfo.c */
+
+struct fscrypt_mode {
+ const char *friendly_name;
+ const char *cipher_str;
+ int keysize;
+ bool logged_impl_name;
+ bool uses_essiv;
+ bool uses_long_ivs;
+};
+
extern void __exit fscrypt_essiv_cleanup(void);
#endif /* _FSCRYPT_PRIVATE_H */
diff --git a/fs/crypto/keyinfo.c b/fs/crypto/keyinfo.c
index 7874c9bb2fc5..49bfbe8c15cd 100644
--- a/fs/crypto/keyinfo.c
+++ b/fs/crypto/keyinfo.c
@@ -10,15 +10,20 @@
*/
#include <keys/user-type.h>
+#include <linux/hashtable.h>
#include <linux/scatterlist.h>
#include <linux/ratelimit.h>
#include <crypto/aes.h>
+#include <crypto/algapi.h>
#include <crypto/sha.h>
#include <crypto/skcipher.h>
#include "fscrypt_private.h"
static struct crypto_shash *essiv_hash_tfm;
+static DEFINE_HASHTABLE(fscrypt_master_keys, 6); /* 6 bits = 64 buckets */
+static DEFINE_SPINLOCK(fscrypt_master_keys_lock);
+
/*
* Key derivation function. This generates the derived key by encrypting the
* master key with AES-128-ECB using the inode's nonce as the AES key.
@@ -123,37 +128,7 @@ find_and_lock_process_key(const char *prefix,
return ERR_PTR(-ENOKEY);
}
-/* Find the master key, then derive the inode's actual encryption key */
-static int find_and_derive_key(const struct inode *inode,
- const struct fscrypt_context *ctx,
- u8 *derived_key, unsigned int derived_keysize)
-{
- struct key *key;
- const struct fscrypt_key *payload;
- int err;
-
- key = find_and_lock_process_key(FS_KEY_DESC_PREFIX,
- ctx->master_key_descriptor,
- derived_keysize, &payload);
- if (key == ERR_PTR(-ENOKEY) && inode->i_sb->s_cop->key_prefix) {
- key = find_and_lock_process_key(inode->i_sb->s_cop->key_prefix,
- ctx->master_key_descriptor,
- derived_keysize, &payload);
- }
- if (IS_ERR(key))
- return PTR_ERR(key);
- err = derive_key_aes(payload->raw, ctx, derived_key, derived_keysize);
- up_read(&key->sem);
- key_put(key);
- return err;
-}
-
-static struct fscrypt_mode {
- const char *friendly_name;
- const char *cipher_str;
- int keysize;
- bool logged_impl_name;
-} available_modes[] = {
+static struct fscrypt_mode available_modes[] = {
[FS_ENCRYPTION_MODE_AES_256_XTS] = {
.friendly_name = "AES-256-XTS",
.cipher_str = "xts(aes)",
@@ -168,12 +143,19 @@ static struct fscrypt_mode {
.friendly_name = "AES-128-CBC",
.cipher_str = "cbc(aes)",
.keysize = 16,
+ .uses_essiv = true,
},
[FS_ENCRYPTION_MODE_AES_128_CTS] = {
.friendly_name = "AES-128-CTS-CBC",
.cipher_str = "cts(cbc(aes))",
.keysize = 16,
},
+ [FS_ENCRYPTION_MODE_ADIANTUM] = {
+ .friendly_name = "Adiantum",
+ .cipher_str = "adiantum(xchacha12,aes)",
+ .keysize = 32,
+ .uses_long_ivs = true,
+ },
};
static struct fscrypt_mode *
@@ -198,14 +180,178 @@ select_encryption_mode(const struct fscrypt_info *ci, const struct inode *inode)
return ERR_PTR(-EINVAL);
}
-static void put_crypt_info(struct fscrypt_info *ci)
+/* Find the master key, then derive the inode's actual encryption key */
+static int find_and_derive_key(const struct inode *inode,
+ const struct fscrypt_context *ctx,
+ u8 *derived_key, const struct fscrypt_mode *mode)
{
- if (!ci)
+ struct key *key;
+ const struct fscrypt_key *payload;
+ int err;
+
+ key = find_and_lock_process_key(FS_KEY_DESC_PREFIX,
+ ctx->master_key_descriptor,
+ mode->keysize, &payload);
+ if (key == ERR_PTR(-ENOKEY) && inode->i_sb->s_cop->key_prefix) {
+ key = find_and_lock_process_key(inode->i_sb->s_cop->key_prefix,
+ ctx->master_key_descriptor,
+ mode->keysize, &payload);
+ }
+ if (IS_ERR(key))
+ return PTR_ERR(key);
+
+ if (ctx->flags & FS_POLICY_FLAGS_DIRECT) {
+ if (mode->uses_long_ivs) {
+ memcpy(derived_key, payload->raw, mode->keysize);
+ err = 0;
+ } else {
+ fscrypt_warn(inode->i_sb,
+ "direct key mode not allowed with %s\n",
+ mode->friendly_name);
+ err = -EINVAL;
+ }
+ } else {
+ err = derive_key_aes(payload->raw, ctx, derived_key,
+ mode->keysize);
+ }
+ up_read(&key->sem);
+ key_put(key);
+ return err;
+}
+
+/* Allocate and key a symmetric cipher object for the given encryption mode */
+static struct crypto_skcipher *
+allocate_skcipher_for_mode(struct fscrypt_mode *mode, const u8 *raw_key,
+ const struct inode *inode)
+{
+ struct crypto_skcipher *tfm;
+ int err;
+
+ tfm = crypto_alloc_skcipher(mode->cipher_str, 0, 0);
+ if (IS_ERR(tfm)) {
+ fscrypt_warn(inode->i_sb,
+ "error allocating '%s' transform for inode %lu: %ld",
+ mode->cipher_str, inode->i_ino, PTR_ERR(tfm));
+ return tfm;
+ }
+ if (unlikely(!mode->logged_impl_name)) {
+ /*
+ * fscrypt performance can vary greatly depending on which
+ * crypto algorithm implementation is used. Help people debug
+ * performance problems by logging the ->cra_driver_name the
+ * first time a mode is used. Note that multiple threads can
+ * race here, but it doesn't really matter.
+ */
+ mode->logged_impl_name = true;
+ pr_info("fscrypt: %s using implementation \"%s\"\n",
+ mode->friendly_name,
+ crypto_skcipher_alg(tfm)->base.cra_driver_name);
+ }
+ crypto_skcipher_set_flags(tfm, CRYPTO_TFM_REQ_WEAK_KEY);
+ err = crypto_skcipher_setkey(tfm, raw_key, mode->keysize);
+ if (err)
+ goto err_free_tfm;
+
+ return tfm;
+
+err_free_tfm:
+ crypto_free_skcipher(tfm);
+ return ERR_PTR(err);
+}
+
+/* Master key referenced by FS_POLICY_FLAGS_DIRECT policy */
+struct fscrypt_master_key {
+ struct hlist_node mk_node;
+ refcount_t mk_refcount;
+ const struct fscrypt_mode *mk_mode;
+ struct crypto_skcipher *mk_ctfm;
+ u8 mk_descriptor[FS_KEY_DESCRIPTOR_SIZE];
+ u8 mk_raw[FS_MAX_KEY_SIZE];
+};
+
+static void free_master_key(struct fscrypt_master_key *mk)
+{
+ if (mk) {
+ crypto_free_skcipher(mk->mk_ctfm);
+ kzfree(mk);
+ }
+}
+
+static void put_master_key(struct fscrypt_master_key *mk)
+{
+ if (!refcount_dec_and_lock(&mk->mk_refcount, &fscrypt_master_keys_lock))
return;
+ hash_del(&mk->mk_node);
+ spin_unlock(&fscrypt_master_keys_lock);
- crypto_free_skcipher(ci->ci_ctfm);
- crypto_free_cipher(ci->ci_essiv_tfm);
- kmem_cache_free(fscrypt_info_cachep, ci);
+ free_master_key(mk);
+}
+
+static struct fscrypt_master_key *
+find_or_insert_master_key(struct fscrypt_master_key *to_insert,
+ const u8 *raw_key, const struct fscrypt_mode *mode,
+ const struct fscrypt_info *ci)
+{
+ unsigned long hash_key;
+ struct fscrypt_master_key *mk;
+
+ BUILD_BUG_ON(sizeof(hash_key) > FS_KEY_DESCRIPTOR_SIZE);
+ memcpy(&hash_key, ci->ci_master_key_descriptor, sizeof(hash_key));
+
+ spin_lock(&fscrypt_master_keys_lock);
+ hash_for_each_possible(fscrypt_master_keys, mk, mk_node, hash_key) {
+ if (memcmp(mk->mk_descriptor, ci->ci_master_key_descriptor,
+ FS_KEY_DESCRIPTOR_SIZE) != 0)
+ continue;
+ if (mode != mk->mk_mode ||
+ crypto_memneq(raw_key, mk->mk_raw, mode->keysize))
+ continue;
+ /* using existing tfm with same (descriptor, mode, raw_key) */
+ refcount_inc(&mk->mk_refcount);
+ spin_unlock(&fscrypt_master_keys_lock);
+ free_master_key(to_insert);
+ return mk;
+ }
+ if (to_insert)
+ hash_add(fscrypt_master_keys, &to_insert->mk_node, hash_key);
+ spin_unlock(&fscrypt_master_keys_lock);
+ return to_insert;
+}
+
+/* Prepare to encrypt directly using the master key in the given mode */
+static struct fscrypt_master_key *
+fscrypt_get_master_key(const struct fscrypt_info *ci, struct fscrypt_mode *mode,
+ const u8 *raw_key, const struct inode *inode)
+{
+ struct fscrypt_master_key *mk;
+ int err;
+
+ /* Is there already a tfm for this key? */
+ mk = find_or_insert_master_key(NULL, raw_key, mode, ci);
+ if (mk)
+ return mk;
+
+ /* Nope, allocate one. */
+ mk = kzalloc(sizeof(*mk), GFP_NOFS);
+ if (!mk)
+ return ERR_PTR(-ENOMEM);
+ refcount_set(&mk->mk_refcount, 1);
+ mk->mk_mode = mode;
+ mk->mk_ctfm = allocate_skcipher_for_mode(mode, raw_key, inode);
+ if (IS_ERR(mk->mk_ctfm)) {
+ err = PTR_ERR(mk->mk_ctfm);
+ mk->mk_ctfm = NULL;
+ goto err_free_mk;
+ }
+ memcpy(mk->mk_descriptor, ci->ci_master_key_descriptor,
+ FS_KEY_DESCRIPTOR_SIZE);
+ memcpy(mk->mk_raw, raw_key, mode->keysize);
+
+ return find_or_insert_master_key(mk, raw_key, mode, ci);
+
+err_free_mk:
+ free_master_key(mk);
+ return ERR_PTR(err);
}
static int derive_essiv_salt(const u8 *key, int keysize, u8 *salt)
@@ -275,11 +421,66 @@ void __exit fscrypt_essiv_cleanup(void)
crypto_free_shash(essiv_hash_tfm);
}
+/*
+ * Given the encryption mode and key (normally the derived key, but for
+ * FS_POLICY_FLAGS_DIRECT mode it's the master key), set up the inode's
+ * symmetric cipher transform object(s).
+ */
+static int setup_crypto_transform(struct fscrypt_info *ci,
+ struct fscrypt_mode *mode,
+ const u8 *raw_key, const struct inode *inode)
+{
+ struct fscrypt_master_key *mk;
+ struct crypto_skcipher *ctfm;
+ int err;
+
+ if (ci->ci_flags & FS_POLICY_FLAGS_DIRECT) {
+ mk = fscrypt_get_master_key(ci, mode, raw_key, inode);
+ if (IS_ERR(mk))
+ return PTR_ERR(mk);
+ ctfm = mk->mk_ctfm;
+ } else {
+ mk = NULL;
+ ctfm = allocate_skcipher_for_mode(mode, raw_key, inode);
+ if (IS_ERR(ctfm))
+ return PTR_ERR(ctfm);
+ }
+ ci->ci_master_key = mk;
+ ci->ci_ctfm = ctfm;
+
+ if (mode->uses_essiv && S_ISREG(inode->i_mode)) {
+ WARN_ON(mode->uses_long_ivs);
+ BUILD_BUG_ON(FIELD_SIZEOF(union fscrypt_iv, short_iv) !=
+ AES_BLOCK_SIZE);
+ err = init_essiv_generator(ci, raw_key, mode->keysize);
+ if (err) {
+ fscrypt_warn(inode->i_sb,
+ "error initializing ESSIV generator for inode %lu: %d",
+ inode->i_ino, err);
+ return err;
+ }
+ }
+ return 0;
+}
+
+static void put_crypt_info(struct fscrypt_info *ci)
+{
+ if (!ci)
+ return;
+
+ if (ci->ci_master_key) {
+ put_master_key(ci->ci_master_key);
+ } else {
+ crypto_free_skcipher(ci->ci_ctfm);
+ crypto_free_cipher(ci->ci_essiv_tfm);
+ }
+ kmem_cache_free(fscrypt_info_cachep, ci);
+}
+
int fscrypt_get_encryption_info(struct inode *inode)
{
struct fscrypt_info *crypt_info;
struct fscrypt_context ctx;
- struct crypto_skcipher *ctfm;
struct fscrypt_mode *mode;
u8 *raw_key = NULL;
int res;
@@ -312,23 +513,23 @@ int fscrypt_get_encryption_info(struct inode *inode)
if (ctx.flags & ~FS_POLICY_FLAGS_VALID)
return -EINVAL;
- crypt_info = kmem_cache_alloc(fscrypt_info_cachep, GFP_NOFS);
+ crypt_info = kmem_cache_zalloc(fscrypt_info_cachep, GFP_NOFS);
if (!crypt_info)
return -ENOMEM;
crypt_info->ci_flags = ctx.flags;
crypt_info->ci_data_mode = ctx.contents_encryption_mode;
crypt_info->ci_filename_mode = ctx.filenames_encryption_mode;
- crypt_info->ci_ctfm = NULL;
- crypt_info->ci_essiv_tfm = NULL;
- memcpy(crypt_info->ci_master_key, ctx.master_key_descriptor,
- sizeof(crypt_info->ci_master_key));
+ memcpy(crypt_info->ci_master_key_descriptor, ctx.master_key_descriptor,
+ FS_KEY_DESCRIPTOR_SIZE);
+ memcpy(crypt_info->ci_nonce, ctx.nonce, FS_KEY_DERIVATION_NONCE_SIZE);
mode = select_encryption_mode(crypt_info, inode);
if (IS_ERR(mode)) {
res = PTR_ERR(mode);
goto out;
}
+ crypt_info->ci_mode = mode;
/*
* This cannot be a stack buffer because it is passed to the scatterlist
@@ -339,47 +540,14 @@ int fscrypt_get_encryption_info(struct inode *inode)
if (!raw_key)
goto out;
- res = find_and_derive_key(inode, &ctx, raw_key, mode->keysize);
+ res = find_and_derive_key(inode, &ctx, raw_key, mode);
if (res)
goto out;
- ctfm = crypto_alloc_skcipher(mode->cipher_str, 0, 0);
- if (IS_ERR(ctfm)) {
- res = PTR_ERR(ctfm);
- fscrypt_warn(inode->i_sb,
- "error allocating '%s' transform for inode %lu: %d",
- mode->cipher_str, inode->i_ino, res);
- goto out;
- }
- if (unlikely(!mode->logged_impl_name)) {
- /*
- * fscrypt performance can vary greatly depending on which
- * crypto algorithm implementation is used. Help people debug
- * performance problems by logging the ->cra_driver_name the
- * first time a mode is used. Note that multiple threads can
- * race here, but it doesn't really matter.
- */
- mode->logged_impl_name = true;
- pr_info("fscrypt: %s using implementation \"%s\"\n",
- mode->friendly_name,
- crypto_skcipher_alg(ctfm)->base.cra_driver_name);
- }
- crypt_info->ci_ctfm = ctfm;
- crypto_skcipher_set_flags(ctfm, CRYPTO_TFM_REQ_WEAK_KEY);
- res = crypto_skcipher_setkey(ctfm, raw_key, mode->keysize);
+ res = setup_crypto_transform(crypt_info, mode, raw_key, inode);
if (res)
goto out;
- if (S_ISREG(inode->i_mode) &&
- crypt_info->ci_data_mode == FS_ENCRYPTION_MODE_AES_128_CBC) {
- res = init_essiv_generator(crypt_info, raw_key, mode->keysize);
- if (res) {
- fscrypt_warn(inode->i_sb,
- "error initializing ESSIV generator for inode %lu: %d",
- inode->i_ino, res);
- goto out;
- }
- }
if (cmpxchg(&inode->i_crypt_info, NULL, crypt_info) == NULL)
crypt_info = NULL;
out:
diff --git a/fs/crypto/policy.c b/fs/crypto/policy.c
index c6d431a5cce9..f490de921ce8 100644
--- a/fs/crypto/policy.c
+++ b/fs/crypto/policy.c
@@ -199,7 +199,8 @@ int fscrypt_has_permitted_context(struct inode *parent, struct inode *child)
child_ci = child->i_crypt_info;
if (parent_ci && child_ci) {
- return memcmp(parent_ci->ci_master_key, child_ci->ci_master_key,
+ return memcmp(parent_ci->ci_master_key_descriptor,
+ child_ci->ci_master_key_descriptor,
FS_KEY_DESCRIPTOR_SIZE) == 0 &&
(parent_ci->ci_data_mode == child_ci->ci_data_mode) &&
(parent_ci->ci_filename_mode ==
@@ -254,7 +255,7 @@ int fscrypt_inherit_context(struct inode *parent, struct inode *child,
ctx.contents_encryption_mode = ci->ci_data_mode;
ctx.filenames_encryption_mode = ci->ci_filename_mode;
ctx.flags = ci->ci_flags;
- memcpy(ctx.master_key_descriptor, ci->ci_master_key,
+ memcpy(ctx.master_key_descriptor, ci->ci_master_key_descriptor,
FS_KEY_DESCRIPTOR_SIZE);
get_random_bytes(ctx.nonce, FS_KEY_DERIVATION_NONCE_SIZE);
BUILD_BUG_ON(sizeof(ctx) != FSCRYPT_SET_CONTEXT_MAX_SIZE);
diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h
index a441ea1bfe6d..8a49e971146d 100644
--- a/include/uapi/linux/fs.h
+++ b/include/uapi/linux/fs.h
@@ -269,7 +269,8 @@ struct fsxattr {
#define FS_POLICY_FLAGS_PAD_16 0x02
#define FS_POLICY_FLAGS_PAD_32 0x03
#define FS_POLICY_FLAGS_PAD_MASK 0x03
-#define FS_POLICY_FLAGS_VALID 0x03
+#define FS_POLICY_FLAGS_DIRECT 0x04 /* use master key directly */
+#define FS_POLICY_FLAGS_VALID 0x07
/* Encryption algorithms */
#define FS_ENCRYPTION_MODE_INVALID 0
@@ -281,6 +282,7 @@ struct fsxattr {
#define FS_ENCRYPTION_MODE_AES_128_CTS 6
#define FS_ENCRYPTION_MODE_SPECK128_256_XTS 7 /* Removed, do not use. */
#define FS_ENCRYPTION_MODE_SPECK128_256_CTS 8 /* Removed, do not use. */
+#define FS_ENCRYPTION_MODE_ADIANTUM 9
struct fscrypt_policy {
__u8 version;
--
2.19.1.930.g4563a0d9d0-goog
From: Eric Biggers <[email protected]>
Add an ARM NEON implementation of NHPoly1305, an ε-almost-∆-universal
hash function used in the Adiantum encryption mode. For now, only the
NH portion is actually NEON-accelerated; the Poly1305 part is less
performance-critical so is just implemented in C.
Signed-off-by: Eric Biggers <[email protected]>
---
arch/arm/crypto/Kconfig | 5 ++
arch/arm/crypto/Makefile | 2 +
arch/arm/crypto/nh-neon-core.S | 116 +++++++++++++++++++++++++
arch/arm/crypto/nhpoly1305-neon-glue.c | 77 ++++++++++++++++
4 files changed, 200 insertions(+)
create mode 100644 arch/arm/crypto/nh-neon-core.S
create mode 100644 arch/arm/crypto/nhpoly1305-neon-glue.c
diff --git a/arch/arm/crypto/Kconfig b/arch/arm/crypto/Kconfig
index cc932d9bba56..458562a34aab 100644
--- a/arch/arm/crypto/Kconfig
+++ b/arch/arm/crypto/Kconfig
@@ -122,4 +122,9 @@ config CRYPTO_CHACHA20_NEON
select CRYPTO_BLKCIPHER
select CRYPTO_CHACHA20
+config CRYPTO_NHPOLY1305_NEON
+ tristate "NEON accelerated NHPoly1305 hash function (for Adiantum)"
+ depends on KERNEL_MODE_NEON
+ select CRYPTO_NHPOLY1305
+
endif
diff --git a/arch/arm/crypto/Makefile b/arch/arm/crypto/Makefile
index 005482ff9504..b65d6bfab8e6 100644
--- a/arch/arm/crypto/Makefile
+++ b/arch/arm/crypto/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_CRYPTO_SHA1_ARM_NEON) += sha1-arm-neon.o
obj-$(CONFIG_CRYPTO_SHA256_ARM) += sha256-arm.o
obj-$(CONFIG_CRYPTO_SHA512_ARM) += sha512-arm.o
obj-$(CONFIG_CRYPTO_CHACHA20_NEON) += chacha-neon.o
+obj-$(CONFIG_CRYPTO_NHPOLY1305_NEON) += nhpoly1305-neon.o
ce-obj-$(CONFIG_CRYPTO_AES_ARM_CE) += aes-arm-ce.o
ce-obj-$(CONFIG_CRYPTO_SHA1_ARM_CE) += sha1-arm-ce.o
@@ -53,6 +54,7 @@ ghash-arm-ce-y := ghash-ce-core.o ghash-ce-glue.o
crct10dif-arm-ce-y := crct10dif-ce-core.o crct10dif-ce-glue.o
crc32-arm-ce-y:= crc32-ce-core.o crc32-ce-glue.o
chacha-neon-y := chacha-neon-core.o chacha-neon-glue.o
+nhpoly1305-neon-y := nh-neon-core.o nhpoly1305-neon-glue.o
ifdef REGENERATE_ARM_CRYPTO
quiet_cmd_perl = PERL $@
diff --git a/arch/arm/crypto/nh-neon-core.S b/arch/arm/crypto/nh-neon-core.S
new file mode 100644
index 000000000000..434d80ab531c
--- /dev/null
+++ b/arch/arm/crypto/nh-neon-core.S
@@ -0,0 +1,116 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * NH - ε-almost-universal hash function, NEON accelerated version
+ *
+ * Copyright 2018 Google LLC
+ *
+ * Author: Eric Biggers <[email protected]>
+ */
+
+#include <linux/linkage.h>
+
+ .text
+ .fpu neon
+
+ KEY .req r0
+ MESSAGE .req r1
+ MESSAGE_LEN .req r2
+ HASH .req r3
+
+ PASS0_SUMS .req q0
+ PASS0_SUM_A .req d0
+ PASS0_SUM_B .req d1
+ PASS1_SUMS .req q1
+ PASS1_SUM_A .req d2
+ PASS1_SUM_B .req d3
+ PASS2_SUMS .req q2
+ PASS2_SUM_A .req d4
+ PASS2_SUM_B .req d5
+ PASS3_SUMS .req q3
+ PASS3_SUM_A .req d6
+ PASS3_SUM_B .req d7
+ K0 .req q4
+ K1 .req q5
+ K2 .req q6
+ K3 .req q7
+ T0 .req q8
+ T0_L .req d16
+ T0_H .req d17
+ T1 .req q9
+ T1_L .req d18
+ T1_H .req d19
+ T2 .req q10
+ T2_L .req d20
+ T2_H .req d21
+ T3 .req q11
+ T3_L .req d22
+ T3_H .req d23
+
+.macro _nh_stride k0, k1, k2, k3
+
+ // Load next message stride
+ vld1.8 {T3}, [MESSAGE]!
+
+ // Load next key stride
+ vld1.32 {\k3}, [KEY]!
+
+ // Add message words to key words
+ vadd.u32 T0, T3, \k0
+ vadd.u32 T1, T3, \k1
+ vadd.u32 T2, T3, \k2
+ vadd.u32 T3, T3, \k3
+
+ // Multiply 32x32 => 64 and accumulate
+ vmlal.u32 PASS0_SUMS, T0_L, T0_H
+ vmlal.u32 PASS1_SUMS, T1_L, T1_H
+ vmlal.u32 PASS2_SUMS, T2_L, T2_H
+ vmlal.u32 PASS3_SUMS, T3_L, T3_H
+.endm
+
+/*
+ * void nh_neon(const u32 *key, const u8 *message, size_t message_len,
+ * u8 hash[NH_HASH_BYTES])
+ *
+ * It's guaranteed that message_len % 16 == 0.
+ */
+ENTRY(nh_neon)
+
+ vld1.32 {K0,K1}, [KEY]!
+ vmov.u64 PASS0_SUMS, #0
+ vmov.u64 PASS1_SUMS, #0
+ vld1.32 {K2}, [KEY]!
+ vmov.u64 PASS2_SUMS, #0
+ vmov.u64 PASS3_SUMS, #0
+
+ subs MESSAGE_LEN, MESSAGE_LEN, #64
+ blt .Lloop4_done
+.Lloop4:
+ _nh_stride K0, K1, K2, K3
+ _nh_stride K1, K2, K3, K0
+ _nh_stride K2, K3, K0, K1
+ _nh_stride K3, K0, K1, K2
+ subs MESSAGE_LEN, MESSAGE_LEN, #64
+ bge .Lloop4
+
+.Lloop4_done:
+ ands MESSAGE_LEN, MESSAGE_LEN, #63
+ beq .Ldone
+ _nh_stride K0, K1, K2, K3
+
+ subs MESSAGE_LEN, MESSAGE_LEN, #16
+ beq .Ldone
+ _nh_stride K1, K2, K3, K0
+
+ subs MESSAGE_LEN, MESSAGE_LEN, #16
+ beq .Ldone
+ _nh_stride K2, K3, K0, K1
+
+.Ldone:
+ // Sum the accumulators for each pass, then store the sums to 'hash'
+ vadd.u64 T0_L, PASS0_SUM_A, PASS0_SUM_B
+ vadd.u64 T0_H, PASS1_SUM_A, PASS1_SUM_B
+ vadd.u64 T1_L, PASS2_SUM_A, PASS2_SUM_B
+ vadd.u64 T1_H, PASS3_SUM_A, PASS3_SUM_B
+ vst1.8 {T0-T1}, [HASH]
+ bx lr
+ENDPROC(nh_neon)
diff --git a/arch/arm/crypto/nhpoly1305-neon-glue.c b/arch/arm/crypto/nhpoly1305-neon-glue.c
new file mode 100644
index 000000000000..49aae87cb2bc
--- /dev/null
+++ b/arch/arm/crypto/nhpoly1305-neon-glue.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * NHPoly1305 - ε-almost-∆-universal hash function for Adiantum
+ * (NEON accelerated version)
+ *
+ * Copyright 2018 Google LLC
+ */
+
+#include <asm/neon.h>
+#include <asm/simd.h>
+#include <crypto/internal/hash.h>
+#include <crypto/nhpoly1305.h>
+#include <linux/module.h>
+
+asmlinkage void nh_neon(const u32 *key, const u8 *message, size_t message_len,
+ u8 hash[NH_HASH_BYTES]);
+
+/* wrapper to avoid indirect call to assembly, which doesn't work with CFI */
+static void _nh_neon(const u32 *key, const u8 *message, size_t message_len,
+ __le64 hash[NH_NUM_PASSES])
+{
+ nh_neon(key, message, message_len, (u8 *)hash);
+}
+
+static int nhpoly1305_neon_update(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen)
+{
+ if (srclen < 64 || !may_use_simd())
+ return crypto_nhpoly1305_update(desc, src, srclen);
+
+ do {
+ unsigned int n = min_t(unsigned int, srclen, PAGE_SIZE);
+
+ kernel_neon_begin();
+ crypto_nhpoly1305_update_helper(desc, src, n, _nh_neon);
+ kernel_neon_end();
+ src += n;
+ srclen -= n;
+ } while (srclen);
+ return 0;
+}
+
+static struct shash_alg nhpoly1305_alg = {
+ .base.cra_name = "nhpoly1305",
+ .base.cra_driver_name = "nhpoly1305-neon",
+ .base.cra_priority = 200,
+ .base.cra_ctxsize = sizeof(struct nhpoly1305_key),
+ .base.cra_module = THIS_MODULE,
+ .digestsize = POLY1305_DIGEST_SIZE,
+ .init = crypto_nhpoly1305_init,
+ .update = nhpoly1305_neon_update,
+ .final = crypto_nhpoly1305_final,
+ .setkey = crypto_nhpoly1305_setkey,
+ .descsize = sizeof(struct nhpoly1305_state),
+};
+
+static int __init nhpoly1305_mod_init(void)
+{
+ if (!(elf_hwcap & HWCAP_NEON))
+ return -ENODEV;
+
+ return crypto_register_shash(&nhpoly1305_alg);
+}
+
+static void __exit nhpoly1305_mod_exit(void)
+{
+ crypto_unregister_shash(&nhpoly1305_alg);
+}
+
+module_init(nhpoly1305_mod_init);
+module_exit(nhpoly1305_mod_exit);
+
+MODULE_DESCRIPTION("NHPoly1305 ε-almost-∆-universal hash function (NEON-accelerated)");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Eric Biggers <[email protected]>");
+MODULE_ALIAS_CRYPTO("nhpoly1305");
+MODULE_ALIAS_CRYPTO("nhpoly1305-neon");
--
2.19.1.930.g4563a0d9d0-goog
From: Eric Biggers <[email protected]>
Add support for the Adiantum encryption mode. Adiantum was designed by
Paul Crowley and is specified by our paper:
Adiantum: length-preserving encryption for entry-level processors
(https://eprint.iacr.org/2018/720.pdf)
See our paper for full details; this patch only provides an overview.
Adiantum is a tweakable, length-preserving encryption mode designed for
fast and secure disk encryption, especially on CPUs without dedicated
crypto instructions. Adiantum encrypts each sector using the XChaCha12
stream cipher, two passes of an ε-almost-∆-universal (εA∆U) hash
function, and an invocation of the AES-256 block cipher on a single
16-byte block. On CPUs without AES instructions, Adiantum is much
faster than AES-XTS; for example, on ARM Cortex-A7, on 4096-byte sectors
Adiantum encryption is about 4 times faster than AES-256-XTS encryption,
and decryption about 5 times faster.
Adiantum is a specialization of the more general HBSH construction. Our
earlier proposal, HPolyC, was also a HBSH specialization, but it used a
different εA∆U hash function, one based on Poly1305 only. Adiantum's
εA∆U hash function, which is based primarily on the "NH" hash function
like that used in UMAC (RFC4418), is about twice as fast as HPolyC's;
consequently, Adiantum is about 20% faster than HPolyC.
This speed comes with no loss of security: Adiantum is provably just as
secure as HPolyC, in fact slightly *more* secure. Like HPolyC,
Adiantum's security is reducible to that of XChaCha12 and AES-256,
subject to a security bound. XChaCha12 itself has a security reduction
to ChaCha12. Therefore, one need not "trust" Adiantum; one need only
trust ChaCha12 and AES-256. Note that the εA∆U hash function is only
used for its proven combinatorical properties so cannot be "broken".
Adiantum is also a true wide-block encryption mode, so flipping any
plaintext bit in the sector scrambles the entire ciphertext, and vice
versa. No other such mode is available in the kernel currently; doing
the same with XTS scrambles only 16 bytes. Adiantum also supports
arbitrary-length tweaks and naturally supports any length input >= 16
bytes without needing "ciphertext stealing".
For the stream cipher, Adiantum uses XChaCha12 rather than XChaCha20 in
order to make encryption feasible on the widest range of devices.
Although the 20-round variant is quite popular, the best known attacks
on ChaCha are on only 7 rounds, so ChaCha12 still has a substantial
security margin; in fact, larger than AES-256's. 12-round Salsa20 is
also the eSTREAM recommendation. For the block cipher, Adiantum uses
AES-256, despite it having a lower security margin than XChaCha12 and
needing table lookups, due to AES's extensive adoption and analysis
making it the obvious first choice. Nevertheless, for flexibility this
patch also permits the "adiantum" template to be instantiated with
XChaCha20 and/or with an alternate block cipher.
We need Adiantum support in the kernel for use in dm-crypt and fscrypt,
where currently the only other suitable options are block cipher modes
such as AES-XTS. A big problem with this is that many low-end mobile
devices (e.g. Android Go phones sold primarily in developing countries,
as well as some smartwatches) still have CPUs that lack AES
instructions, e.g. ARM Cortex-A7. Sadly, AES-XTS encryption is much too
slow to be viable on these devices. We did find that some "lightweight"
block ciphers are fast enough, but these suffer from problems such as
not having much cryptanalysis or being too controversial.
The ChaCha stream cipher has excellent performance but is insecure to
use directly for disk encryption, since each sector's IV is reused each
time it is overwritten. Even restricting the threat model to offline
attacks only isn't enough, since modern flash storage devices don't
guarantee that "overwrites" are really overwrites, due to wear-leveling.
Adiantum avoids this problem by constructing a
"tweakable super-pseudorandom permutation"; this is the strongest
possible security model for length-preserving encryption.
Of course, storing random nonces along with the ciphertext would be the
ideal solution. But doing that with existing hardware and filesystems
runs into major practical problems; in most cases it would require data
journaling (like dm-integrity) which severely degrades performance.
Thus, for now length-preserving encryption is still needed.
Signed-off-by: Eric Biggers <[email protected]>
---
crypto/Kconfig | 23 ++
crypto/Makefile | 1 +
crypto/adiantum.c | 658 ++++++++++++++++++++++++++++++++++++++++++++++
crypto/tcrypt.c | 12 +
crypto/testmgr.c | 12 +
crypto/testmgr.h | 461 ++++++++++++++++++++++++++++++++
6 files changed, 1167 insertions(+)
create mode 100644 crypto/adiantum.c
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 431beca90362..d60a8575049c 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -498,6 +498,29 @@ config CRYPTO_NHPOLY1305
select CRYPTO_HASH
select CRYPTO_POLY1305
+config CRYPTO_ADIANTUM
+ tristate "Adiantum support"
+ select CRYPTO_CHACHA20
+ select CRYPTO_POLY1305
+ select CRYPTO_NHPOLY1305
+ help
+ Adiantum is a tweakable, length-preserving encryption mode
+ designed for fast and secure disk encryption, especially on
+ CPUs without dedicated crypto instructions. It encrypts
+ each sector using the XChaCha12 stream cipher, two passes of
+ an ε-almost-∆-universal hash function, and an invocation of
+ the AES-256 block cipher on a single 16-byte block. On CPUs
+ without AES instructions, Adiantum is much faster than
+ AES-XTS.
+
+ Adiantum's security is provably reducible to that of its
+ underlying stream and block ciphers, subject to a security
+ bound. Unlike XTS, Adiantum is a true wide-block encryption
+ mode, so it actually provides an even stronger notion of
+ security than XTS, subject to the security bound.
+
+ If unsure, say N.
+
comment "Hash modes"
config CRYPTO_CMAC
diff --git a/crypto/Makefile b/crypto/Makefile
index 87b86f221a2a..1c66475593af 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -84,6 +84,7 @@ obj-$(CONFIG_CRYPTO_LRW) += lrw.o
obj-$(CONFIG_CRYPTO_XTS) += xts.o
obj-$(CONFIG_CRYPTO_CTR) += ctr.o
obj-$(CONFIG_CRYPTO_KEYWRAP) += keywrap.o
+obj-$(CONFIG_CRYPTO_ADIANTUM) += adiantum.o
obj-$(CONFIG_CRYPTO_NHPOLY1305) += nhpoly1305.o
obj-$(CONFIG_CRYPTO_GCM) += gcm.o
obj-$(CONFIG_CRYPTO_CCM) += ccm.o
diff --git a/crypto/adiantum.c b/crypto/adiantum.c
new file mode 100644
index 000000000000..2dfcf12fd452
--- /dev/null
+++ b/crypto/adiantum.c
@@ -0,0 +1,658 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Adiantum length-preserving encryption mode
+ *
+ * Copyright 2018 Google LLC
+ */
+
+/*
+ * Adiantum is a tweakable, length-preserving encryption mode designed for fast
+ * and secure disk encryption, especially on CPUs without dedicated crypto
+ * instructions. Adiantum encrypts each sector using the XChaCha12 stream
+ * cipher, two passes of an ε-almost-∆-universal (εA∆U) hash function based on
+ * NH and Poly1305, and an invocation of the AES-256 block cipher on a single
+ * 16-byte block. See the paper for details:
+ *
+ * Adiantum: length-preserving encryption for entry-level processors
+ * (https://eprint.iacr.org/2018/720.pdf)
+ *
+ * For flexibility, this implementation also allows other ciphers:
+ *
+ * - Stream cipher: XChaCha12 or XChaCha20
+ * - Block cipher: any with a 128-bit block size and 256-bit key
+ *
+ * This implementation doesn't currently allow other εA∆U hash functions, i.e.
+ * HPolyC is not supported. This is because Adiantum is ~20% faster than HPolyC
+ * but still provably as secure, and also the εA∆U hash function of HBSH is
+ * formally defined to take two inputs (tweak, message) which makes it difficult
+ * to wrap with the crypto_shash API. Rather, some details need to be handled
+ * here. Nevertheless, if needed in the future, support for other εA∆U hash
+ * functions could be added here.
+ */
+
+#include <crypto/b128ops.h>
+#include <crypto/chacha.h>
+#include <crypto/internal/hash.h>
+#include <crypto/internal/skcipher.h>
+#include <crypto/nhpoly1305.h>
+#include <crypto/scatterwalk.h>
+#include <linux/module.h>
+
+#include "internal.h"
+
+/*
+ * Size of right-hand block of input data, in bytes; also the size of the block
+ * cipher's block size and the hash function's output.
+ */
+#define BLOCKCIPHER_BLOCK_SIZE 16
+
+/* Size of the block cipher key (K_E) in bytes */
+#define BLOCKCIPHER_KEY_SIZE 32
+
+/* Size of the hash key (K_H) in bytes */
+#define HASH_KEY_SIZE (POLY1305_BLOCK_SIZE + NHPOLY1305_KEY_SIZE)
+
+/*
+ * The specification allows variable-length tweaks, but Linux's crypto API
+ * currently only allows algorithms to support a single length. The "natural"
+ * tweak length for Adiantum is 16, since that fits into one Poly1305 block for
+ * the best performance. But longer tweaks are useful for fscrypt, to avoid
+ * needing to derive per-file keys. So instead we use two blocks, or 32 bytes.
+ */
+#define TWEAK_SIZE 32
+
+struct adiantum_instance_ctx {
+ struct crypto_skcipher_spawn streamcipher_spawn;
+ struct crypto_spawn blockcipher_spawn;
+ struct crypto_shash_spawn hash_spawn;
+};
+
+struct adiantum_tfm_ctx {
+ struct crypto_skcipher *streamcipher;
+ struct crypto_cipher *blockcipher;
+ struct crypto_shash *hash;
+ struct poly1305_key header_hash_key;
+};
+
+struct adiantum_request_ctx {
+
+ /*
+ * Buffer for right-hand block of data, i.e.
+ *
+ * P_L => P_M => C_M => C_R when encrypting, or
+ * C_R => C_M => P_M => P_L when decrypting.
+ *
+ * Also used to build the IV for the stream cipher.
+ */
+ union {
+ u8 bytes[XCHACHA_IV_SIZE];
+ __le32 words[XCHACHA_IV_SIZE / sizeof(__le32)];
+ le128 bignum; /* interpret as element of Z/(2^{128}Z) */
+ } rbuf;
+
+ bool enc; /* true if encrypting, false if decrypting */
+
+ /*
+ * The result of the Poly1305 εA∆U hash function applied to
+ * (message length, tweak).
+ */
+ le128 header_hash;
+
+ /* Sub-requests, must be last */
+ union {
+ struct shash_desc hash_desc;
+ struct skcipher_request streamcipher_req;
+ } u;
+};
+
+/*
+ * Given the XChaCha stream key K_S, derive the block cipher key K_E and the
+ * hash key K_H as follows:
+ *
+ * K_E || K_H || ... = XChaCha(key=K_S, nonce=1||0^191)
+ *
+ * Note that this denotes using bits from the XChaCha keystream, which here we
+ * get indirectly by encrypting a buffer containing all 0's.
+ */
+static int adiantum_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+ struct {
+ u8 iv[XCHACHA_IV_SIZE];
+ u8 derived_keys[BLOCKCIPHER_KEY_SIZE + HASH_KEY_SIZE];
+ struct scatterlist sg;
+ struct crypto_wait wait;
+ struct skcipher_request req; /* must be last */
+ } *data;
+ u8 *keyp;
+ int err;
+
+ /* Set the stream cipher key (K_S) */
+ crypto_skcipher_clear_flags(tctx->streamcipher, CRYPTO_TFM_REQ_MASK);
+ crypto_skcipher_set_flags(tctx->streamcipher,
+ crypto_skcipher_get_flags(tfm) &
+ CRYPTO_TFM_REQ_MASK);
+ err = crypto_skcipher_setkey(tctx->streamcipher, key, keylen);
+ crypto_skcipher_set_flags(tfm,
+ crypto_skcipher_get_flags(tctx->streamcipher) &
+ CRYPTO_TFM_RES_MASK);
+ if (err)
+ return err;
+
+ /* Derive the subkeys */
+ data = kzalloc(sizeof(*data) +
+ crypto_skcipher_reqsize(tctx->streamcipher), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+ data->iv[0] = 1;
+ sg_init_one(&data->sg, data->derived_keys, sizeof(data->derived_keys));
+ crypto_init_wait(&data->wait);
+ skcipher_request_set_tfm(&data->req, tctx->streamcipher);
+ skcipher_request_set_callback(&data->req, CRYPTO_TFM_REQ_MAY_SLEEP |
+ CRYPTO_TFM_REQ_MAY_BACKLOG,
+ crypto_req_done, &data->wait);
+ skcipher_request_set_crypt(&data->req, &data->sg, &data->sg,
+ sizeof(data->derived_keys), data->iv);
+ err = crypto_wait_req(crypto_skcipher_encrypt(&data->req), &data->wait);
+ if (err)
+ goto out;
+ keyp = data->derived_keys;
+
+ /* Set the block cipher key (K_E) */
+ crypto_cipher_clear_flags(tctx->blockcipher, CRYPTO_TFM_REQ_MASK);
+ crypto_cipher_set_flags(tctx->blockcipher,
+ crypto_skcipher_get_flags(tfm) &
+ CRYPTO_TFM_REQ_MASK);
+ err = crypto_cipher_setkey(tctx->blockcipher, keyp,
+ BLOCKCIPHER_KEY_SIZE);
+ crypto_skcipher_set_flags(tfm,
+ crypto_cipher_get_flags(tctx->blockcipher) &
+ CRYPTO_TFM_RES_MASK);
+ if (err)
+ goto out;
+ keyp += BLOCKCIPHER_KEY_SIZE;
+
+ /* Set the hash key (K_H) */
+ poly1305_core_setkey(&tctx->header_hash_key, keyp);
+ keyp += POLY1305_BLOCK_SIZE;
+
+ crypto_shash_clear_flags(tctx->hash, CRYPTO_TFM_REQ_MASK);
+ crypto_shash_set_flags(tctx->hash, crypto_skcipher_get_flags(tfm) &
+ CRYPTO_TFM_REQ_MASK);
+ err = crypto_shash_setkey(tctx->hash, keyp, NHPOLY1305_KEY_SIZE);
+ crypto_skcipher_set_flags(tfm, crypto_shash_get_flags(tctx->hash) &
+ CRYPTO_TFM_RES_MASK);
+ keyp += NHPOLY1305_KEY_SIZE;
+ WARN_ON(keyp != &data->derived_keys[ARRAY_SIZE(data->derived_keys)]);
+out:
+ kzfree(data);
+ return err;
+}
+
+/* Addition in Z/(2^{128}Z) */
+static inline void le128_add(le128 *r, const le128 *v1, const le128 *v2)
+{
+ u64 x = le64_to_cpu(v1->b);
+ u64 y = le64_to_cpu(v2->b);
+
+ r->b = cpu_to_le64(x + y);
+ r->a = cpu_to_le64(le64_to_cpu(v1->a) + le64_to_cpu(v2->a) +
+ (x + y < x));
+}
+
+/* Subtraction in Z/(2^{128}Z) */
+static inline void le128_sub(le128 *r, const le128 *v1, const le128 *v2)
+{
+ u64 x = le64_to_cpu(v1->b);
+ u64 y = le64_to_cpu(v2->b);
+
+ r->b = cpu_to_le64(x - y);
+ r->a = cpu_to_le64(le64_to_cpu(v1->a) - le64_to_cpu(v2->a) -
+ (x - y > x));
+}
+
+/*
+ * Apply the Poly1305 εA∆U hash function to (message length, tweak) and save the
+ * result to rctx->header_hash.
+ *
+ * This value is reused in both the first and second hash steps. Specifically,
+ * it's added to the result of an independently keyed εA∆U hash function (for
+ * equal length inputs only) taken over the message. This gives the overall
+ * Adiantum hash of the (tweak, message) pair.
+ */
+static void adiantum_hash_header(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ const struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+ struct adiantum_request_ctx *rctx = skcipher_request_ctx(req);
+ const unsigned int bulk_len = req->cryptlen - BLOCKCIPHER_BLOCK_SIZE;
+ struct {
+ __le64 message_bits;
+ __le64 padding;
+ } header = {
+ .message_bits = cpu_to_le64((u64)bulk_len * 8)
+ };
+ struct poly1305_state state;
+
+ poly1305_core_init(&state);
+
+ BUILD_BUG_ON(sizeof(header) % POLY1305_BLOCK_SIZE != 0);
+ poly1305_core_blocks(&state, &tctx->header_hash_key,
+ &header, sizeof(header) / POLY1305_BLOCK_SIZE);
+
+ BUILD_BUG_ON(TWEAK_SIZE % POLY1305_BLOCK_SIZE != 0);
+ poly1305_core_blocks(&state, &tctx->header_hash_key, req->iv,
+ TWEAK_SIZE / POLY1305_BLOCK_SIZE);
+
+ poly1305_core_emit(&state, &rctx->header_hash);
+}
+
+/* Hash the left-hand block (the "bulk") of the message using NHPoly1305 */
+static int adiantum_hash_message(struct skcipher_request *req,
+ struct scatterlist *sgl, le128 *digest)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ const struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+ struct adiantum_request_ctx *rctx = skcipher_request_ctx(req);
+ const unsigned int bulk_len = req->cryptlen - BLOCKCIPHER_BLOCK_SIZE;
+ struct shash_desc *hash_desc = &rctx->u.hash_desc;
+ struct sg_mapping_iter miter;
+ unsigned int i, n;
+ int err;
+
+ hash_desc->tfm = tctx->hash;
+ hash_desc->flags = 0;
+
+ err = crypto_shash_init(hash_desc);
+ if (err)
+ return err;
+
+ sg_miter_start(&miter, sgl, sg_nents(sgl),
+ SG_MITER_FROM_SG | SG_MITER_ATOMIC);
+ for (i = 0; i < bulk_len; i += n) {
+ sg_miter_next(&miter);
+ n = min_t(unsigned int, miter.length, bulk_len - i);
+ err = crypto_shash_update(hash_desc, miter.addr, n);
+ if (err)
+ break;
+ }
+ sg_miter_stop(&miter);
+ if (err)
+ return err;
+
+ return crypto_shash_final(hash_desc, (u8 *)digest);
+}
+
+/* Continue Adiantum encryption/decryption after the stream cipher step */
+static int adiantum_finish(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ const struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+ struct adiantum_request_ctx *rctx = skcipher_request_ctx(req);
+ const unsigned int bulk_len = req->cryptlen - BLOCKCIPHER_BLOCK_SIZE;
+ le128 digest;
+ int err;
+
+ /* If decrypting, decrypt C_M with the block cipher to get P_M */
+ if (!rctx->enc)
+ crypto_cipher_decrypt_one(tctx->blockcipher, rctx->rbuf.bytes,
+ rctx->rbuf.bytes);
+
+ /*
+ * Second hash step
+ * enc: C_R = C_M - H_{K_H}(T, C_L)
+ * dec: P_R = P_M - H_{K_H}(T, P_L)
+ */
+ err = adiantum_hash_message(req, req->dst, &digest);
+ if (err)
+ return err;
+ le128_add(&digest, &digest, &rctx->header_hash);
+ le128_sub(&rctx->rbuf.bignum, &rctx->rbuf.bignum, &digest);
+ scatterwalk_map_and_copy(&rctx->rbuf.bignum, req->dst,
+ bulk_len, BLOCKCIPHER_BLOCK_SIZE, 1);
+ return 0;
+}
+
+static void adiantum_streamcipher_done(struct crypto_async_request *areq,
+ int err)
+{
+ struct skcipher_request *req = areq->data;
+
+ if (!err)
+ err = adiantum_finish(req);
+
+ skcipher_request_complete(req, err);
+}
+
+static int adiantum_crypt(struct skcipher_request *req, bool enc)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ const struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+ struct adiantum_request_ctx *rctx = skcipher_request_ctx(req);
+ const unsigned int bulk_len = req->cryptlen - BLOCKCIPHER_BLOCK_SIZE;
+ unsigned int stream_len;
+ le128 digest;
+ int err;
+
+ if (req->cryptlen < BLOCKCIPHER_BLOCK_SIZE)
+ return -EINVAL;
+
+ rctx->enc = enc;
+
+ /*
+ * First hash step
+ * enc: P_M = P_R + H_{K_H}(T, P_L)
+ * dec: C_M = C_R + H_{K_H}(T, C_L)
+ */
+ adiantum_hash_header(req);
+ err = adiantum_hash_message(req, req->src, &digest);
+ if (err)
+ return err;
+ le128_add(&digest, &digest, &rctx->header_hash);
+ scatterwalk_map_and_copy(&rctx->rbuf.bignum, req->src,
+ bulk_len, BLOCKCIPHER_BLOCK_SIZE, 0);
+ le128_add(&rctx->rbuf.bignum, &rctx->rbuf.bignum, &digest);
+
+ /* If encrypting, encrypt P_M with the block cipher to get C_M */
+ if (enc)
+ crypto_cipher_encrypt_one(tctx->blockcipher, rctx->rbuf.bytes,
+ rctx->rbuf.bytes);
+
+ /* Initialize the rest of the XChaCha IV (first part is C_M) */
+ BUILD_BUG_ON(BLOCKCIPHER_BLOCK_SIZE != 16);
+ BUILD_BUG_ON(XCHACHA_IV_SIZE != 32); /* nonce || stream position */
+ rctx->rbuf.words[4] = cpu_to_le32(1);
+ rctx->rbuf.words[5] = 0;
+ rctx->rbuf.words[6] = 0;
+ rctx->rbuf.words[7] = 0;
+
+ /*
+ * XChaCha needs to be done on all the data except the last 16 bytes;
+ * for disk encryption that usually means 4080 or 496 bytes. But ChaCha
+ * implementations tend to be most efficient when passed a whole number
+ * of 64-byte ChaCha blocks, or sometimes even a multiple of 256 bytes.
+ * And here it doesn't matter whether the last 16 bytes are written to,
+ * as the second hash step will overwrite them. Thus, round the XChaCha
+ * length up to the next 64-byte boundary if possible.
+ */
+ stream_len = bulk_len;
+ if (round_up(stream_len, CHACHA_BLOCK_SIZE) <= req->cryptlen)
+ stream_len = round_up(stream_len, CHACHA_BLOCK_SIZE);
+
+ skcipher_request_set_tfm(&rctx->u.streamcipher_req, tctx->streamcipher);
+ skcipher_request_set_crypt(&rctx->u.streamcipher_req, req->src,
+ req->dst, stream_len, &rctx->rbuf);
+ skcipher_request_set_callback(&rctx->u.streamcipher_req,
+ req->base.flags,
+ adiantum_streamcipher_done, req);
+ return crypto_skcipher_encrypt(&rctx->u.streamcipher_req) ?:
+ adiantum_finish(req);
+}
+
+static int adiantum_encrypt(struct skcipher_request *req)
+{
+ return adiantum_crypt(req, true);
+}
+
+static int adiantum_decrypt(struct skcipher_request *req)
+{
+ return adiantum_crypt(req, false);
+}
+
+static int adiantum_init_tfm(struct crypto_skcipher *tfm)
+{
+ struct skcipher_instance *inst = skcipher_alg_instance(tfm);
+ struct adiantum_instance_ctx *ictx = skcipher_instance_ctx(inst);
+ struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+ struct crypto_skcipher *streamcipher;
+ struct crypto_cipher *blockcipher;
+ struct crypto_shash *hash;
+ unsigned int subreq_size;
+ int err;
+
+ streamcipher = crypto_spawn_skcipher(&ictx->streamcipher_spawn);
+ if (IS_ERR(streamcipher))
+ return PTR_ERR(streamcipher);
+
+ blockcipher = crypto_spawn_cipher(&ictx->blockcipher_spawn);
+ if (IS_ERR(blockcipher)) {
+ err = PTR_ERR(blockcipher);
+ goto err_free_streamcipher;
+ }
+
+ hash = crypto_spawn_shash(&ictx->hash_spawn);
+ if (IS_ERR(hash)) {
+ err = PTR_ERR(hash);
+ goto err_free_blockcipher;
+ }
+
+ tctx->streamcipher = streamcipher;
+ tctx->blockcipher = blockcipher;
+ tctx->hash = hash;
+
+ BUILD_BUG_ON(offsetofend(struct adiantum_request_ctx, u) !=
+ sizeof(struct adiantum_request_ctx));
+ subreq_size = max(FIELD_SIZEOF(struct adiantum_request_ctx,
+ u.hash_desc) +
+ crypto_shash_descsize(hash),
+ FIELD_SIZEOF(struct adiantum_request_ctx,
+ u.streamcipher_req) +
+ crypto_skcipher_reqsize(streamcipher));
+
+ crypto_skcipher_set_reqsize(tfm,
+ offsetof(struct adiantum_request_ctx, u) +
+ subreq_size);
+ return 0;
+
+err_free_blockcipher:
+ crypto_free_cipher(blockcipher);
+err_free_streamcipher:
+ crypto_free_skcipher(streamcipher);
+ return err;
+}
+
+static void adiantum_exit_tfm(struct crypto_skcipher *tfm)
+{
+ struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+
+ crypto_free_skcipher(tctx->streamcipher);
+ crypto_free_cipher(tctx->blockcipher);
+ crypto_free_shash(tctx->hash);
+}
+
+static void adiantum_free_instance(struct skcipher_instance *inst)
+{
+ struct adiantum_instance_ctx *ictx = skcipher_instance_ctx(inst);
+
+ crypto_drop_skcipher(&ictx->streamcipher_spawn);
+ crypto_drop_spawn(&ictx->blockcipher_spawn);
+ crypto_drop_shash(&ictx->hash_spawn);
+ kfree(inst);
+}
+
+/*
+ * Check for a supported set of inner algorithms.
+ * See the comment at the beginning of this file.
+ */
+static bool adiantum_supported_algorithms(struct skcipher_alg *streamcipher_alg,
+ struct crypto_alg *blockcipher_alg,
+ struct shash_alg *hash_alg)
+{
+ if (strcmp(streamcipher_alg->base.cra_name, "xchacha12") != 0 &&
+ strcmp(streamcipher_alg->base.cra_name, "xchacha20") != 0)
+ return false;
+
+ if (blockcipher_alg->cra_cipher.cia_min_keysize > BLOCKCIPHER_KEY_SIZE ||
+ blockcipher_alg->cra_cipher.cia_max_keysize < BLOCKCIPHER_KEY_SIZE)
+ return false;
+ if (blockcipher_alg->cra_blocksize != BLOCKCIPHER_BLOCK_SIZE)
+ return false;
+
+ if (strcmp(hash_alg->base.cra_name, "nhpoly1305") != 0)
+ return false;
+
+ return true;
+}
+
+static int adiantum_create(struct crypto_template *tmpl, struct rtattr **tb)
+{
+ struct crypto_attr_type *algt;
+ const char *streamcipher_name;
+ const char *blockcipher_name;
+ const char *nhpoly1305_name;
+ struct skcipher_instance *inst;
+ struct adiantum_instance_ctx *ictx;
+ struct skcipher_alg *streamcipher_alg;
+ struct crypto_alg *blockcipher_alg;
+ struct crypto_alg *_hash_alg;
+ struct shash_alg *hash_alg;
+ int err;
+
+ algt = crypto_get_attr_type(tb);
+ if (IS_ERR(algt))
+ return PTR_ERR(algt);
+
+ if ((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask)
+ return -EINVAL;
+
+ streamcipher_name = crypto_attr_alg_name(tb[1]);
+ if (IS_ERR(streamcipher_name))
+ return PTR_ERR(streamcipher_name);
+
+ blockcipher_name = crypto_attr_alg_name(tb[2]);
+ if (IS_ERR(blockcipher_name))
+ return PTR_ERR(blockcipher_name);
+
+ nhpoly1305_name = crypto_attr_alg_name(tb[3]);
+ if (nhpoly1305_name == ERR_PTR(-ENOENT))
+ nhpoly1305_name = "nhpoly1305";
+ if (IS_ERR(nhpoly1305_name))
+ return PTR_ERR(nhpoly1305_name);
+
+ inst = kzalloc(sizeof(*inst) + sizeof(*ictx), GFP_KERNEL);
+ if (!inst)
+ return -ENOMEM;
+ ictx = skcipher_instance_ctx(inst);
+
+ /* Stream cipher, e.g. "xchacha12" */
+ err = crypto_grab_skcipher(&ictx->streamcipher_spawn, streamcipher_name,
+ 0, crypto_requires_sync(algt->type,
+ algt->mask));
+ if (err)
+ goto out_free_inst;
+ streamcipher_alg = crypto_spawn_skcipher_alg(&ictx->streamcipher_spawn);
+
+ /* Block cipher, e.g. "aes" */
+ err = crypto_grab_spawn(&ictx->blockcipher_spawn, blockcipher_name,
+ CRYPTO_ALG_TYPE_CIPHER, CRYPTO_ALG_TYPE_MASK);
+ if (err)
+ goto out_drop_streamcipher;
+ blockcipher_alg = ictx->blockcipher_spawn.alg;
+
+ /* NHPoly1305 εA∆U hash function */
+ _hash_alg = crypto_alg_mod_lookup(nhpoly1305_name,
+ CRYPTO_ALG_TYPE_SHASH,
+ CRYPTO_ALG_TYPE_MASK);
+ if (IS_ERR(_hash_alg)) {
+ err = PTR_ERR(_hash_alg);
+ goto out_drop_blockcipher;
+ }
+ hash_alg = __crypto_shash_alg(_hash_alg);
+ err = crypto_init_shash_spawn(&ictx->hash_spawn, hash_alg,
+ skcipher_crypto_instance(inst));
+ if (err) {
+ crypto_mod_put(_hash_alg);
+ goto out_drop_blockcipher;
+ }
+
+ /* Check the set of algorithms */
+ if (!adiantum_supported_algorithms(streamcipher_alg, blockcipher_alg,
+ hash_alg)) {
+ pr_warn("Unsupported Adiantum instantiation: (%s,%s,%s)\n",
+ streamcipher_alg->base.cra_name,
+ blockcipher_alg->cra_name, hash_alg->base.cra_name);
+ err = -EINVAL;
+ goto out_drop_hash;
+ }
+
+ /* Instance fields */
+
+ err = -ENAMETOOLONG;
+ if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
+ "adiantum(%s,%s)", streamcipher_alg->base.cra_name,
+ blockcipher_alg->cra_name) >= CRYPTO_MAX_ALG_NAME)
+ goto out_drop_hash;
+ if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
+ "adiantum(%s,%s,%s)",
+ streamcipher_alg->base.cra_driver_name,
+ blockcipher_alg->cra_driver_name,
+ hash_alg->base.cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
+ goto out_drop_hash;
+
+ inst->alg.base.cra_blocksize = BLOCKCIPHER_BLOCK_SIZE;
+ inst->alg.base.cra_ctxsize = sizeof(struct adiantum_tfm_ctx);
+ inst->alg.base.cra_alignmask = streamcipher_alg->base.cra_alignmask |
+ hash_alg->base.cra_alignmask;
+ /*
+ * The block cipher is only invoked once per message, so for long
+ * messages (e.g. sectors for disk encryption) its performance doesn't
+ * matter as much as that of the stream cipher and hash function. Thus,
+ * weigh the block cipher's ->cra_priority less.
+ */
+ inst->alg.base.cra_priority = (4 * streamcipher_alg->base.cra_priority +
+ 2 * hash_alg->base.cra_priority +
+ blockcipher_alg->cra_priority) / 7;
+
+ inst->alg.setkey = adiantum_setkey;
+ inst->alg.encrypt = adiantum_encrypt;
+ inst->alg.decrypt = adiantum_decrypt;
+ inst->alg.init = adiantum_init_tfm;
+ inst->alg.exit = adiantum_exit_tfm;
+ inst->alg.min_keysize = crypto_skcipher_alg_min_keysize(streamcipher_alg);
+ inst->alg.max_keysize = crypto_skcipher_alg_max_keysize(streamcipher_alg);
+ inst->alg.ivsize = TWEAK_SIZE;
+
+ inst->free = adiantum_free_instance;
+
+ err = skcipher_register_instance(tmpl, inst);
+ if (err)
+ goto out_drop_hash;
+
+ return 0;
+
+out_drop_hash:
+ crypto_drop_shash(&ictx->hash_spawn);
+out_drop_blockcipher:
+ crypto_drop_spawn(&ictx->blockcipher_spawn);
+out_drop_streamcipher:
+ crypto_drop_skcipher(&ictx->streamcipher_spawn);
+out_free_inst:
+ kfree(inst);
+ return err;
+}
+
+/* adiantum(streamcipher_name, blockcipher_name [, nhpoly1305_name]) */
+static struct crypto_template adiantum_tmpl = {
+ .name = "adiantum",
+ .create = adiantum_create,
+ .module = THIS_MODULE,
+};
+
+static int __init adiantum_module_init(void)
+{
+ return crypto_register_template(&adiantum_tmpl);
+}
+
+static void __exit adiantum_module_exit(void)
+{
+ crypto_unregister_template(&adiantum_tmpl);
+}
+
+module_init(adiantum_module_init);
+module_exit(adiantum_module_exit);
+
+MODULE_DESCRIPTION("Adiantum length-preserving encryption mode");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Eric Biggers <[email protected]>");
+MODULE_ALIAS_CRYPTO("adiantum");
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index c20c9f5c18f2..7e8e3adac855 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -2297,6 +2297,18 @@ static int do_test(const char *alg, u32 type, u32 mask, int m, u32 num_mb)
test_cipher_speed("ctr(sm4)", DECRYPT, sec, NULL, 0,
speed_template_16);
break;
+
+ case 219:
+ test_cipher_speed("adiantum(xchacha12,aes)", ENCRYPT, sec, NULL,
+ 0, speed_template_32);
+ test_cipher_speed("adiantum(xchacha12,aes)", DECRYPT, sec, NULL,
+ 0, speed_template_32);
+ test_cipher_speed("adiantum(xchacha20,aes)", ENCRYPT, sec, NULL,
+ 0, speed_template_32);
+ test_cipher_speed("adiantum(xchacha20,aes)", DECRYPT, sec, NULL,
+ 0, speed_template_32);
+ break;
+
case 300:
if (alg) {
test_hash_speed(alg, sec, generic_hash_speed_template);
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 039a5d850a29..4ce255a4509d 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -2404,6 +2404,18 @@ static int alg_test_null(const struct alg_test_desc *desc,
/* Please keep this list sorted by algorithm name. */
static const struct alg_test_desc alg_test_descs[] = {
{
+ .alg = "adiantum(xchacha12,aes)",
+ .test = alg_test_skcipher,
+ .suite = {
+ .cipher = __VECS(adiantum_xchacha12_aes_tv_template)
+ },
+ }, {
+ .alg = "adiantum(xchacha20,aes)",
+ .test = alg_test_skcipher,
+ .suite = {
+ .cipher = __VECS(adiantum_xchacha20_aes_tv_template)
+ },
+ }, {
.alg = "aegis128",
.test = alg_test_aead,
.suite = {
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index 40197d74b3d5..6b2fb444f687 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -33189,6 +33189,467 @@ static const struct cipher_testvec xchacha12_tv_template[] = {
},
};
+/* Adiantum test vectors from https://github.com/google/adiantum */
+static const struct cipher_testvec adiantum_xchacha12_aes_tv_template[] = {
+ {
+ .key = "\x9e\xeb\xb2\x49\x3c\x1c\xf5\xf4"
+ "\x6a\x99\xc2\xc4\xdf\xb1\xf4\xdd"
+ "\x75\x20\x57\xea\x2c\x4f\xcd\xb2"
+ "\xa5\x3d\x7b\x49\x1e\xab\xfd\x0f",
+ .klen = 32,
+ .iv = "\xdf\x63\xd4\xab\xd2\x49\xf3\xd8"
+ "\x33\x81\x37\x60\x7d\xfa\x73\x08"
+ "\xd8\x49\x6d\x80\xe8\x2f\x62\x54"
+ "\xeb\x0e\xa9\x39\x5b\x45\x7f\x8a",
+ .ptext = "\x67\xc9\xf2\x30\x84\x41\x8e\x43"
+ "\xfb\xf3\xb3\x3e\x79\x36\x7f\xe8",
+ .ctext = "\x6d\x32\x86\x18\x67\x86\x0f\x3f"
+ "\x96\x7c\x9d\x28\x0d\x53\xec\x9f",
+ .len = 16,
+ .also_non_np = 1,
+ .np = 2,
+ .tap = { 14, 2 },
+ }, {
+ .key = "\x36\x2b\x57\x97\xf8\x5d\xcd\x99"
+ "\x5f\x1a\x5a\x44\x1d\x92\x0f\x27"
+ "\xcc\x16\xd7\x2b\x85\x63\x99\xd3"
+ "\xba\x96\xa1\xdb\xd2\x60\x68\xda",
+ .klen = 32,
+ .iv = "\xef\x58\x69\xb1\x2c\x5e\x9a\x47"
+ "\x24\xc1\xb1\x69\xe1\x12\x93\x8f"
+ "\x43\x3d\x6d\x00\xdb\x5e\xd8\xd9"
+ "\x12\x9a\xfe\xd9\xff\x2d\xaa\xc4",
+ .ptext = "\x5e\xa8\x68\x19\x85\x98\x12\x23"
+ "\x26\x0a\xcc\xdb\x0a\x04\xb9\xdf"
+ "\x4d\xb3\x48\x7b\xb0\xe3\xc8\x19"
+ "\x43\x5a\x46\x06\x94\x2d\xf2",
+ .ctext = "\xc7\xc6\xf1\x73\x8f\xc4\xff\x4a"
+ "\x39\xbe\x78\xbe\x8d\x28\xc8\x89"
+ "\x46\x63\xe7\x0c\x7d\x87\xe8\x4e"
+ "\xc9\x18\x7b\xbe\x18\x60\x50",
+ .len = 31,
+ }, {
+ .key = "\xa5\x28\x24\x34\x1a\x3c\xd8\xf7"
+ "\x05\x91\x8f\xee\x85\x1f\x35\x7f"
+ "\x80\x3d\xfc\x9b\x94\xf6\xfc\x9e"
+ "\x19\x09\x00\xa9\x04\x31\x4f\x11",
+ .klen = 32,
+ .iv = "\xa1\xba\x49\x95\xff\x34\x6d\xb8"
+ "\xcd\x87\x5d\x5e\xfd\xea\x85\xdb"
+ "\x8a\x7b\x5e\xb2\x5d\x57\xdd\x62"
+ "\xac\xa9\x8c\x41\x42\x94\x75\xb7",
+ .ptext = "\x69\xb4\xe8\x8c\x37\xe8\x67\x82"
+ "\xf1\xec\x5d\x04\xe5\x14\x91\x13"
+ "\xdf\xf2\x87\x1b\x69\x81\x1d\x71"
+ "\x70\x9e\x9c\x3b\xde\x49\x70\x11"
+ "\xa0\xa3\xdb\x0d\x54\x4f\x66\x69"
+ "\xd7\xdb\x80\xa7\x70\x92\x68\xce"
+ "\x81\x04\x2c\xc6\xab\xae\xe5\x60"
+ "\x15\xe9\x6f\xef\xaa\x8f\xa7\xa7"
+ "\x63\x8f\xf2\xf0\x77\xf1\xa8\xea"
+ "\xe1\xb7\x1f\x9e\xab\x9e\x4b\x3f"
+ "\x07\x87\x5b\x6f\xcd\xa8\xaf\xb9"
+ "\xfa\x70\x0b\x52\xb8\xa8\xa7\x9e"
+ "\x07\x5f\xa6\x0e\xb3\x9b\x79\x13"
+ "\x79\xc3\x3e\x8d\x1c\x2c\x68\xc8"
+ "\x51\x1d\x3c\x7b\x7d\x79\x77\x2a"
+ "\x56\x65\xc5\x54\x23\x28\xb0\x03",
+ .ctext = "\x9e\x16\xab\xed\x4b\xa7\x42\x5a"
+ "\xc6\xfb\x4e\x76\xff\xbe\x03\xa0"
+ "\x0f\xe3\xad\xba\xe4\x98\x2b\x0e"
+ "\x21\x48\xa0\xb8\x65\x48\x27\x48"
+ "\x84\x54\x54\xb2\x9a\x94\x7b\xe6"
+ "\x4b\x29\xe9\xcf\x05\x91\x80\x1a"
+ "\x3a\xf3\x41\x96\x85\x1d\x9f\x74"
+ "\x51\x56\x63\xfa\x7c\x28\x85\x49"
+ "\xf7\x2f\xf9\xf2\x18\x46\xf5\x33"
+ "\x80\xa3\x3c\xce\xb2\x57\x93\xf5"
+ "\xae\xbd\xa9\xf5\x7b\x30\xc4\x93"
+ "\x66\xe0\x30\x77\x16\xe4\xa0\x31"
+ "\xba\x70\xbc\x68\x13\xf5\xb0\x9a"
+ "\xc1\xfc\x7e\xfe\x55\x80\x5c\x48"
+ "\x74\xa6\xaa\xa3\xac\xdc\xc2\xf5"
+ "\x8d\xde\x34\x86\x78\x60\x75\x8d",
+ .len = 128,
+ .also_non_np = 1,
+ .np = 4,
+ .tap = { 104, 16, 4, 4 },
+ }, {
+ .key = "\xd3\x81\x72\x18\x23\xff\x6f\x4a"
+ "\x25\x74\x29\x0d\x51\x8a\x0e\x13"
+ "\xc1\x53\x5d\x30\x8d\xee\x75\x0d"
+ "\x14\xd6\x69\xc9\x15\xa9\x0c\x60",
+ .klen = 32,
+ .iv = "\x65\x9b\xd4\xa8\x7d\x29\x1d\xf4"
+ "\xc4\xd6\x9b\x6a\x28\xab\x64\xe2"
+ "\x62\x81\x97\xc5\x81\xaa\xf9\x44"
+ "\xc1\x72\x59\x82\xaf\x16\xc8\x2c",
+ .ptext = "\xc7\x6b\x52\x6a\x10\xf0\xcc\x09"
+ "\xc1\x12\x1d\x6d\x21\xa6\x78\xf5"
+ "\x05\xa3\x69\x60\x91\x36\x98\x57"
+ "\xba\x0c\x14\xcc\xf3\x2d\x73\x03"
+ "\xc6\xb2\x5f\xc8\x16\x27\x37\x5d"
+ "\xd0\x0b\x87\xb2\x50\x94\x7b\x58"
+ "\x04\xf4\xe0\x7f\x6e\x57\x8e\xc9"
+ "\x41\x84\xc1\xb1\x7e\x4b\x91\x12"
+ "\x3a\x8b\x5d\x50\x82\x7b\xcb\xd9"
+ "\x9a\xd9\x4e\x18\x06\x23\x9e\xd4"
+ "\xa5\x20\x98\xef\xb5\xda\xe5\xc0"
+ "\x8a\x6a\x83\x77\x15\x84\x1e\xae"
+ "\x78\x94\x9d\xdf\xb7\xd1\xea\x67"
+ "\xaa\xb0\x14\x15\xfa\x67\x21\x84"
+ "\xd3\x41\x2a\xce\xba\x4b\x4a\xe8"
+ "\x95\x62\xa9\x55\xf0\x80\xad\xbd"
+ "\xab\xaf\xdd\x4f\xa5\x7c\x13\x36"
+ "\xed\x5e\x4f\x72\xad\x4b\xf1\xd0"
+ "\x88\x4e\xec\x2c\x88\x10\x5e\xea"
+ "\x12\xc0\x16\x01\x29\xa3\xa0\x55"
+ "\xaa\x68\xf3\xe9\x9d\x3b\x0d\x3b"
+ "\x6d\xec\xf8\xa0\x2d\xf0\x90\x8d"
+ "\x1c\xe2\x88\xd4\x24\x71\xf9\xb3"
+ "\xc1\x9f\xc5\xd6\x76\x70\xc5\x2e"
+ "\x9c\xac\xdb\x90\xbd\x83\x72\xba"
+ "\x6e\xb5\xa5\x53\x83\xa9\xa5\xbf"
+ "\x7d\x06\x0e\x3c\x2a\xd2\x04\xb5"
+ "\x1e\x19\x38\x09\x16\xd2\x82\x1f"
+ "\x75\x18\x56\xb8\x96\x0b\xa6\xf9"
+ "\xcf\x62\xd9\x32\x5d\xa9\xd7\x1d"
+ "\xec\xe4\xdf\x1b\xbe\xf1\x36\xee"
+ "\xe3\x7b\xb5\x2f\xee\xf8\x53\x3d"
+ "\x6a\xb7\x70\xa9\xfc\x9c\x57\x25"
+ "\xf2\x89\x10\xd3\xb8\xa8\x8c\x30"
+ "\xae\x23\x4f\x0e\x13\x66\x4f\xe1"
+ "\xb6\xc0\xe4\xf8\xef\x93\xbd\x6e"
+ "\x15\x85\x6b\xe3\x60\x81\x1d\x68"
+ "\xd7\x31\x87\x89\x09\xab\xd5\x96"
+ "\x1d\xf3\x6d\x67\x80\xca\x07\x31"
+ "\x5d\xa7\xe4\xfb\x3e\xf2\x9b\x33"
+ "\x52\x18\xc8\x30\xfe\x2d\xca\x1e"
+ "\x79\x92\x7a\x60\x5c\xb6\x58\x87"
+ "\xa4\x36\xa2\x67\x92\x8b\xa4\xb7"
+ "\xf1\x86\xdf\xdc\xc0\x7e\x8f\x63"
+ "\xd2\xa2\xdc\x78\xeb\x4f\xd8\x96"
+ "\x47\xca\xb8\x91\xf9\xf7\x94\x21"
+ "\x5f\x9a\x9f\x5b\xb8\x40\x41\x4b"
+ "\x66\x69\x6a\x72\xd0\xcb\x70\xb7"
+ "\x93\xb5\x37\x96\x05\x37\x4f\xe5"
+ "\x8c\xa7\x5a\x4e\x8b\xb7\x84\xea"
+ "\xc7\xfc\x19\x6e\x1f\x5a\xa1\xac"
+ "\x18\x7d\x52\x3b\xb3\x34\x62\x99"
+ "\xe4\x9e\x31\x04\x3f\xc0\x8d\x84"
+ "\x17\x7c\x25\x48\x52\x67\x11\x27"
+ "\x67\xbb\x5a\x85\xca\x56\xb2\x5c"
+ "\xe6\xec\xd5\x96\x3d\x15\xfc\xfb"
+ "\x22\x25\xf4\x13\xe5\x93\x4b\x9a"
+ "\x77\xf1\x52\x18\xfa\x16\x5e\x49"
+ "\x03\x45\xa8\x08\xfa\xb3\x41\x92"
+ "\x79\x50\x33\xca\xd0\xd7\x42\x55"
+ "\xc3\x9a\x0c\x4e\xd9\xa4\x3c\x86"
+ "\x80\x9f\x53\xd1\xa4\x2e\xd1\xbc"
+ "\xf1\x54\x6e\x93\xa4\x65\x99\x8e"
+ "\xdf\x29\xc0\x64\x63\x07\xbb\xea",
+ .ctext = "\x15\x97\xd0\x86\x18\x03\x9c\x51"
+ "\xc5\x11\x36\x62\x13\x92\xe6\x73"
+ "\x29\x79\xde\xa1\x00\x3e\x08\x64"
+ "\x17\x1a\xbc\xd5\xfe\x33\x0e\x0c"
+ "\x7c\x94\xa7\xc6\x3c\xbe\xac\xa2"
+ "\x89\xe6\xbc\xdf\x0c\x33\x27\x42"
+ "\x46\x73\x2f\xba\x4e\xa6\x46\x8f"
+ "\xe4\xee\x39\x63\x42\x65\xa3\x88"
+ "\x7a\xad\x33\x23\xa9\xa7\x20\x7f"
+ "\x0b\xe6\x6a\xc3\x60\xda\x9e\xb4"
+ "\xd6\x07\x8a\x77\x26\xd1\xab\x44"
+ "\x99\x55\x03\x5e\xed\x8d\x7b\xbd"
+ "\xc8\x21\xb7\x21\x30\x3f\xc0\xb5"
+ "\xc8\xec\x6c\x23\xa6\xa3\x6d\xf1"
+ "\x30\x0a\xd0\xa6\xa9\x28\x69\xae"
+ "\x2a\xe6\x54\xac\x82\x9d\x6a\x95"
+ "\x6f\x06\x44\xc5\x5a\x77\x6e\xec"
+ "\xf8\xf8\x63\xb2\xe6\xaa\xbd\x8e"
+ "\x0e\x8a\x62\x00\x03\xc8\x84\xdd"
+ "\x47\x4a\xc3\x55\xba\xb7\xe7\xdf"
+ "\x08\xbf\x62\xf5\xe8\xbc\xb6\x11"
+ "\xe4\xcb\xd0\x66\x74\x32\xcf\xd4"
+ "\xf8\x51\x80\x39\x14\x05\x12\xdb"
+ "\x87\x93\xe2\x26\x30\x9c\x3a\x21"
+ "\xe5\xd0\x38\x57\x80\x15\xe4\x08"
+ "\x58\x05\x49\x7d\xe6\x92\x77\x70"
+ "\xfb\x1e\x2d\x6a\x84\x00\xc8\x68"
+ "\xf7\x1a\xdd\xf0\x7b\x38\x1e\xd8"
+ "\x2c\x78\x78\x61\xcf\xe3\xde\x69"
+ "\x1f\xd5\x03\xd5\x1a\xb4\xcf\x03"
+ "\xc8\x7a\x70\x68\x35\xb4\xf6\xbe"
+ "\x90\x62\xb2\x28\x99\x86\xf5\x44"
+ "\x99\xeb\x31\xcf\xca\xdf\xd0\x21"
+ "\xd6\x60\xf7\x0f\x40\xb4\x80\xb7"
+ "\xab\xe1\x9b\x45\xba\x66\xda\xee"
+ "\xdd\x04\x12\x40\x98\xe1\x69\xe5"
+ "\x2b\x9c\x59\x80\xe7\x7b\xcc\x63"
+ "\xa6\xc0\x3a\xa9\xfe\x8a\xf9\x62"
+ "\x11\x34\x61\x94\x35\xfe\xf2\x99"
+ "\xfd\xee\x19\xea\x95\xb6\x12\xbf"
+ "\x1b\xdf\x02\x1a\xcc\x3e\x7e\x65"
+ "\x78\x74\x10\x50\x29\x63\x28\xea"
+ "\x6b\xab\xd4\x06\x4d\x15\x24\x31"
+ "\xc7\x0a\xc9\x16\xb6\x48\xf0\xbf"
+ "\x49\xdb\x68\x71\x31\x8f\x87\xe2"
+ "\x13\x05\x64\xd6\x22\x0c\xf8\x36"
+ "\x84\x24\x3e\x69\x5e\xb8\x9e\x16"
+ "\x73\x6c\x83\x1e\xe0\x9f\x9e\xba"
+ "\xe5\x59\x21\x33\x1b\xa9\x26\xc2"
+ "\xc7\xd9\x30\x73\xb6\xa6\x73\x82"
+ "\x19\xfa\x44\x4d\x40\x8b\x69\x04"
+ "\x94\x74\xea\x6e\xb3\x09\x47\x01"
+ "\x2a\xb9\x78\x34\x43\x11\xed\xd6"
+ "\x8c\x95\x65\x1b\x85\x67\xa5\x40"
+ "\xac\x9c\x05\x4b\x57\x4a\xa9\x96"
+ "\x0f\xdd\x4f\xa1\xe0\xcf\x6e\xc7"
+ "\x1b\xed\xa2\xb4\x56\x8c\x09\x6e"
+ "\xa6\x65\xd7\x55\x81\xb7\xed\x11"
+ "\x9b\x40\x75\xa8\x6b\x56\xaf\x16"
+ "\x8b\x3d\xf4\xcb\xfe\xd5\x1d\x3d"
+ "\x85\xc2\xc0\xde\x43\x39\x4a\x96"
+ "\xba\x88\x97\xc0\xd6\x00\x0e\x27"
+ "\x21\xb0\x21\x52\xba\xa7\x37\xaa"
+ "\xcc\xbf\x95\xa8\xf4\xd0\x91\xf6",
+ .len = 512,
+ .also_non_np = 1,
+ .np = 2,
+ .tap = { 144, 368 },
+ }
+};
+
+/* Adiantum with XChaCha20 instead of XChaCha12 */
+/* Test vectors from https://github.com/google/adiantum */
+static const struct cipher_testvec adiantum_xchacha20_aes_tv_template[] = {
+ {
+ .key = "\x9e\xeb\xb2\x49\x3c\x1c\xf5\xf4"
+ "\x6a\x99\xc2\xc4\xdf\xb1\xf4\xdd"
+ "\x75\x20\x57\xea\x2c\x4f\xcd\xb2"
+ "\xa5\x3d\x7b\x49\x1e\xab\xfd\x0f",
+ .klen = 32,
+ .iv = "\xdf\x63\xd4\xab\xd2\x49\xf3\xd8"
+ "\x33\x81\x37\x60\x7d\xfa\x73\x08"
+ "\xd8\x49\x6d\x80\xe8\x2f\x62\x54"
+ "\xeb\x0e\xa9\x39\x5b\x45\x7f\x8a",
+ .ptext = "\x67\xc9\xf2\x30\x84\x41\x8e\x43"
+ "\xfb\xf3\xb3\x3e\x79\x36\x7f\xe8",
+ .ctext = "\xf6\x78\x97\xd6\xaa\x94\x01\x27"
+ "\x2e\x4d\x83\xe0\x6e\x64\x9a\xdf",
+ .len = 16,
+ .also_non_np = 1,
+ .np = 3,
+ .tap = { 5, 2, 9 },
+ }, {
+ .key = "\x36\x2b\x57\x97\xf8\x5d\xcd\x99"
+ "\x5f\x1a\x5a\x44\x1d\x92\x0f\x27"
+ "\xcc\x16\xd7\x2b\x85\x63\x99\xd3"
+ "\xba\x96\xa1\xdb\xd2\x60\x68\xda",
+ .klen = 32,
+ .iv = "\xef\x58\x69\xb1\x2c\x5e\x9a\x47"
+ "\x24\xc1\xb1\x69\xe1\x12\x93\x8f"
+ "\x43\x3d\x6d\x00\xdb\x5e\xd8\xd9"
+ "\x12\x9a\xfe\xd9\xff\x2d\xaa\xc4",
+ .ptext = "\x5e\xa8\x68\x19\x85\x98\x12\x23"
+ "\x26\x0a\xcc\xdb\x0a\x04\xb9\xdf"
+ "\x4d\xb3\x48\x7b\xb0\xe3\xc8\x19"
+ "\x43\x5a\x46\x06\x94\x2d\xf2",
+ .ctext = "\x4b\xb8\x90\x10\xdf\x7f\x64\x08"
+ "\x0e\x14\x42\x5f\x00\x74\x09\x36"
+ "\x57\x72\xb5\xfd\xb5\x5d\xb8\x28"
+ "\x0c\x04\x91\x14\x91\xe9\x37",
+ .len = 31,
+ .also_non_np = 1,
+ .np = 2,
+ .tap = { 16, 15 },
+ }, {
+ .key = "\xa5\x28\x24\x34\x1a\x3c\xd8\xf7"
+ "\x05\x91\x8f\xee\x85\x1f\x35\x7f"
+ "\x80\x3d\xfc\x9b\x94\xf6\xfc\x9e"
+ "\x19\x09\x00\xa9\x04\x31\x4f\x11",
+ .klen = 32,
+ .iv = "\xa1\xba\x49\x95\xff\x34\x6d\xb8"
+ "\xcd\x87\x5d\x5e\xfd\xea\x85\xdb"
+ "\x8a\x7b\x5e\xb2\x5d\x57\xdd\x62"
+ "\xac\xa9\x8c\x41\x42\x94\x75\xb7",
+ .ptext = "\x69\xb4\xe8\x8c\x37\xe8\x67\x82"
+ "\xf1\xec\x5d\x04\xe5\x14\x91\x13"
+ "\xdf\xf2\x87\x1b\x69\x81\x1d\x71"
+ "\x70\x9e\x9c\x3b\xde\x49\x70\x11"
+ "\xa0\xa3\xdb\x0d\x54\x4f\x66\x69"
+ "\xd7\xdb\x80\xa7\x70\x92\x68\xce"
+ "\x81\x04\x2c\xc6\xab\xae\xe5\x60"
+ "\x15\xe9\x6f\xef\xaa\x8f\xa7\xa7"
+ "\x63\x8f\xf2\xf0\x77\xf1\xa8\xea"
+ "\xe1\xb7\x1f\x9e\xab\x9e\x4b\x3f"
+ "\x07\x87\x5b\x6f\xcd\xa8\xaf\xb9"
+ "\xfa\x70\x0b\x52\xb8\xa8\xa7\x9e"
+ "\x07\x5f\xa6\x0e\xb3\x9b\x79\x13"
+ "\x79\xc3\x3e\x8d\x1c\x2c\x68\xc8"
+ "\x51\x1d\x3c\x7b\x7d\x79\x77\x2a"
+ "\x56\x65\xc5\x54\x23\x28\xb0\x03",
+ .ctext = "\xb1\x8b\xa0\x05\x77\xa8\x4d\x59"
+ "\x1b\x8e\x21\xfc\x3a\x49\xfa\xd4"
+ "\xeb\x36\xf3\xc4\xdf\xdc\xae\x67"
+ "\x07\x3f\x70\x0e\xe9\x66\xf5\x0c"
+ "\x30\x4d\x66\xc9\xa4\x2f\x73\x9c"
+ "\x13\xc8\x49\x44\xcc\x0a\x90\x9d"
+ "\x7c\xdd\x19\x3f\xea\x72\x8d\x58"
+ "\xab\xe7\x09\x2c\xec\xb5\x44\xd2"
+ "\xca\xa6\x2d\x7a\x5c\x9c\x2b\x15"
+ "\xec\x2a\xa6\x69\x91\xf9\xf3\x13"
+ "\xf7\x72\xc1\xc1\x40\xd5\xe1\x94"
+ "\xf4\x29\xa1\x3e\x25\x02\xa8\x3e"
+ "\x94\xc1\x91\x14\xa1\x14\xcb\xbe"
+ "\x67\x4c\xb9\x38\xfe\xa7\xaa\x32"
+ "\x29\x62\x0d\xb2\xf6\x3c\x58\x57"
+ "\xc1\xd5\x5a\xbb\xd6\xa6\x2a\xe5",
+ .len = 128,
+ .also_non_np = 1,
+ .np = 4,
+ .tap = { 112, 7, 8, 1 },
+ }, {
+ .key = "\xd3\x81\x72\x18\x23\xff\x6f\x4a"
+ "\x25\x74\x29\x0d\x51\x8a\x0e\x13"
+ "\xc1\x53\x5d\x30\x8d\xee\x75\x0d"
+ "\x14\xd6\x69\xc9\x15\xa9\x0c\x60",
+ .klen = 32,
+ .iv = "\x65\x9b\xd4\xa8\x7d\x29\x1d\xf4"
+ "\xc4\xd6\x9b\x6a\x28\xab\x64\xe2"
+ "\x62\x81\x97\xc5\x81\xaa\xf9\x44"
+ "\xc1\x72\x59\x82\xaf\x16\xc8\x2c",
+ .ptext = "\xc7\x6b\x52\x6a\x10\xf0\xcc\x09"
+ "\xc1\x12\x1d\x6d\x21\xa6\x78\xf5"
+ "\x05\xa3\x69\x60\x91\x36\x98\x57"
+ "\xba\x0c\x14\xcc\xf3\x2d\x73\x03"
+ "\xc6\xb2\x5f\xc8\x16\x27\x37\x5d"
+ "\xd0\x0b\x87\xb2\x50\x94\x7b\x58"
+ "\x04\xf4\xe0\x7f\x6e\x57\x8e\xc9"
+ "\x41\x84\xc1\xb1\x7e\x4b\x91\x12"
+ "\x3a\x8b\x5d\x50\x82\x7b\xcb\xd9"
+ "\x9a\xd9\x4e\x18\x06\x23\x9e\xd4"
+ "\xa5\x20\x98\xef\xb5\xda\xe5\xc0"
+ "\x8a\x6a\x83\x77\x15\x84\x1e\xae"
+ "\x78\x94\x9d\xdf\xb7\xd1\xea\x67"
+ "\xaa\xb0\x14\x15\xfa\x67\x21\x84"
+ "\xd3\x41\x2a\xce\xba\x4b\x4a\xe8"
+ "\x95\x62\xa9\x55\xf0\x80\xad\xbd"
+ "\xab\xaf\xdd\x4f\xa5\x7c\x13\x36"
+ "\xed\x5e\x4f\x72\xad\x4b\xf1\xd0"
+ "\x88\x4e\xec\x2c\x88\x10\x5e\xea"
+ "\x12\xc0\x16\x01\x29\xa3\xa0\x55"
+ "\xaa\x68\xf3\xe9\x9d\x3b\x0d\x3b"
+ "\x6d\xec\xf8\xa0\x2d\xf0\x90\x8d"
+ "\x1c\xe2\x88\xd4\x24\x71\xf9\xb3"
+ "\xc1\x9f\xc5\xd6\x76\x70\xc5\x2e"
+ "\x9c\xac\xdb\x90\xbd\x83\x72\xba"
+ "\x6e\xb5\xa5\x53\x83\xa9\xa5\xbf"
+ "\x7d\x06\x0e\x3c\x2a\xd2\x04\xb5"
+ "\x1e\x19\x38\x09\x16\xd2\x82\x1f"
+ "\x75\x18\x56\xb8\x96\x0b\xa6\xf9"
+ "\xcf\x62\xd9\x32\x5d\xa9\xd7\x1d"
+ "\xec\xe4\xdf\x1b\xbe\xf1\x36\xee"
+ "\xe3\x7b\xb5\x2f\xee\xf8\x53\x3d"
+ "\x6a\xb7\x70\xa9\xfc\x9c\x57\x25"
+ "\xf2\x89\x10\xd3\xb8\xa8\x8c\x30"
+ "\xae\x23\x4f\x0e\x13\x66\x4f\xe1"
+ "\xb6\xc0\xe4\xf8\xef\x93\xbd\x6e"
+ "\x15\x85\x6b\xe3\x60\x81\x1d\x68"
+ "\xd7\x31\x87\x89\x09\xab\xd5\x96"
+ "\x1d\xf3\x6d\x67\x80\xca\x07\x31"
+ "\x5d\xa7\xe4\xfb\x3e\xf2\x9b\x33"
+ "\x52\x18\xc8\x30\xfe\x2d\xca\x1e"
+ "\x79\x92\x7a\x60\x5c\xb6\x58\x87"
+ "\xa4\x36\xa2\x67\x92\x8b\xa4\xb7"
+ "\xf1\x86\xdf\xdc\xc0\x7e\x8f\x63"
+ "\xd2\xa2\xdc\x78\xeb\x4f\xd8\x96"
+ "\x47\xca\xb8\x91\xf9\xf7\x94\x21"
+ "\x5f\x9a\x9f\x5b\xb8\x40\x41\x4b"
+ "\x66\x69\x6a\x72\xd0\xcb\x70\xb7"
+ "\x93\xb5\x37\x96\x05\x37\x4f\xe5"
+ "\x8c\xa7\x5a\x4e\x8b\xb7\x84\xea"
+ "\xc7\xfc\x19\x6e\x1f\x5a\xa1\xac"
+ "\x18\x7d\x52\x3b\xb3\x34\x62\x99"
+ "\xe4\x9e\x31\x04\x3f\xc0\x8d\x84"
+ "\x17\x7c\x25\x48\x52\x67\x11\x27"
+ "\x67\xbb\x5a\x85\xca\x56\xb2\x5c"
+ "\xe6\xec\xd5\x96\x3d\x15\xfc\xfb"
+ "\x22\x25\xf4\x13\xe5\x93\x4b\x9a"
+ "\x77\xf1\x52\x18\xfa\x16\x5e\x49"
+ "\x03\x45\xa8\x08\xfa\xb3\x41\x92"
+ "\x79\x50\x33\xca\xd0\xd7\x42\x55"
+ "\xc3\x9a\x0c\x4e\xd9\xa4\x3c\x86"
+ "\x80\x9f\x53\xd1\xa4\x2e\xd1\xbc"
+ "\xf1\x54\x6e\x93\xa4\x65\x99\x8e"
+ "\xdf\x29\xc0\x64\x63\x07\xbb\xea",
+ .ctext = "\xe0\x33\xf6\xe0\xb4\xa5\xdd\x2b"
+ "\xdd\xce\xfc\x12\x1e\xfc\x2d\xf2"
+ "\x8b\xc7\xeb\xc1\xc4\x2a\xe8\x44"
+ "\x0f\x3d\x97\x19\x2e\x6d\xa2\x38"
+ "\x9d\xa6\xaa\xe1\x96\xb9\x08\xe8"
+ "\x0b\x70\x48\x5c\xed\xb5\x9b\xcb"
+ "\x8b\x40\x88\x7e\x69\x73\xf7\x16"
+ "\x71\xbb\x5b\xfc\xa3\x47\x5d\xa6"
+ "\xae\x3a\x64\xc4\xe7\xb8\xa8\xe7"
+ "\xb1\x32\x19\xdb\xe3\x01\xb8\xf0"
+ "\xa4\x86\xb4\x4c\xc2\xde\x5c\xd2"
+ "\x6c\x77\xd2\xe8\x18\xb7\x0a\xc9"
+ "\x3d\x53\xb5\xc4\x5c\xf0\x8c\x06"
+ "\xdc\x90\xe0\x74\x47\x1b\x0b\xf6"
+ "\xd2\x71\x6b\xc4\xf1\x97\x00\x2d"
+ "\x63\x57\x44\x1f\x8c\xf4\xe6\x9b"
+ "\xe0\x7a\xdd\xec\x32\x73\x42\x32"
+ "\x7f\x35\x67\x60\x0d\xcf\x10\x52"
+ "\x61\x22\x53\x8d\x8e\xbb\x33\x76"
+ "\x59\xd9\x10\xce\xdf\xef\xc0\x41"
+ "\xd5\x33\x29\x6a\xda\x46\xa4\x51"
+ "\xf0\x99\x3d\x96\x31\xdd\xb5\xcb"
+ "\x3e\x2a\x1f\xc7\x5c\x79\xd3\xc5"
+ "\x20\xa1\xb1\x39\x1b\xc6\x0a\x70"
+ "\x26\x39\x95\x07\xad\x7a\xc9\x69"
+ "\xfe\x81\xc7\x88\x08\x38\xaf\xad"
+ "\x9e\x8d\xfb\xe8\x24\x0d\x22\xb8"
+ "\x0e\xed\xbe\x37\x53\x7c\xa6\xc6"
+ "\x78\x62\xec\xa3\x59\xd9\xc6\x9d"
+ "\xb8\x0e\x69\x77\x84\x2d\x6a\x4c"
+ "\xc5\xd9\xb2\xa0\x2b\xa8\x80\xcc"
+ "\xe9\x1e\x9c\x5a\xc4\xa1\xb2\x37"
+ "\x06\x9b\x30\x32\x67\xf7\xe7\xd2"
+ "\x42\xc7\xdf\x4e\xd4\xcb\xa0\x12"
+ "\x94\xa1\x34\x85\x93\x50\x4b\x0a"
+ "\x3c\x7d\x49\x25\x01\x41\x6b\x96"
+ "\xa9\x12\xbb\x0b\xc0\xd7\xd0\x93"
+ "\x1f\x70\x38\xb8\x21\xee\xf6\xa7"
+ "\xee\xeb\xe7\x81\xa4\x13\xb4\x87"
+ "\xfa\xc1\xb0\xb5\x37\x8b\x74\xa2"
+ "\x4e\xc7\xc2\xad\x3d\x62\x3f\xf8"
+ "\x34\x42\xe5\xae\x45\x13\x63\xfe"
+ "\xfc\x2a\x17\x46\x61\xa9\xd3\x1c"
+ "\x4c\xaf\xf0\x09\x62\x26\x66\x1e"
+ "\x74\xcf\xd6\x68\x3d\x7d\xd8\xb7"
+ "\xe7\xe6\xf8\xf0\x08\x20\xf7\x47"
+ "\x1c\x52\xaa\x0f\x3e\x21\xa3\xf2"
+ "\xbf\x2f\x95\x16\xa8\xc8\xc8\x8c"
+ "\x99\x0f\x5d\xfb\xfa\x2b\x58\x8a"
+ "\x7e\xd6\x74\x02\x60\xf0\xd0\x5b"
+ "\x65\xa8\xac\xea\x8d\x68\x46\x34"
+ "\x26\x9d\x4f\xb1\x9a\x8e\xc0\x1a"
+ "\xf1\xed\xc6\x7a\x83\xfd\x8a\x57"
+ "\xf2\xe6\xe4\xba\xfc\xc6\x3c\xad"
+ "\x5b\x19\x50\x2f\x3a\xcc\x06\x46"
+ "\x04\x51\x3f\x91\x97\xf0\xd2\x07"
+ "\xe7\x93\x89\x7e\xb5\x32\x0f\x03"
+ "\xe5\x58\x9e\x74\x72\xeb\xc2\x38"
+ "\x00\x0c\x91\x72\x69\xed\x7d\x6d"
+ "\xc8\x71\xf0\xec\xff\x80\xd9\x1c"
+ "\x9e\xd2\xfa\x15\xfc\x6c\x4e\xbc"
+ "\xb1\xa6\xbd\xbd\x70\x40\xca\x20"
+ "\xb8\x78\xd2\xa3\xc6\xf3\x79\x9c"
+ "\xc7\x27\xe1\x6a\x29\xad\xa4\x03",
+ .len = 512,
+ }
+};
+
/*
* CTS (Cipher Text Stealing) mode tests
*/
--
2.19.1.930.g4563a0d9d0-goog
Hi Herbert,
On Tue, Nov 20, 2018 at 7:02 AM Herbert Xu <[email protected]> wrote:
> Here is an updated version demonstrating how we could access the
> accelerated versions of chacha20. It also includes a final patch
> to deposit the new zinc version of x86-64 chacha20 into
> arch/x86/crypto where it can be used by both the crypto API as well
> as zinc.
N'ack. As I mentioned in the last email, this really isn't okay, and
mostly defeats the purpose of Zinc in the first place, adding
complexity in a discombobulated half-baked way. Your proposal seems to
be the worst of all worlds. Having talked to lots of people about the
design of Zinc at this point to very positive reception, I'm going to
move forward with submitting v9, once I rebase with the required
changes for Eric's latest merge.
Jason
Hi Herbert,
On Mon, Nov 19, 2018 at 6:25 AM Herbert Xu <[email protected]> wrote:
> My proposal is to merge the zinc interface as is, but to invert
> how we place the algorithm implementations. IOW the implementations
> should stay where they are now, with in the crypto API. However,
> we will provide direct access to them for zinc without going through
> the crypto API. IOW we'll just export the functions directly.
Sorry, but there isn't a chance I'll agree to this. The whole idea is
to have a clean place to focus on synchronous software
implementations, and not keep it tangled up with the asynchronous API.
If WireGuard and Zinc go in, it's going to be done right, not in a way
that introduces more problems and organizational complexity. Avoiding
the solution proposed here is kind of the point. And given that
cryptographic code is so security sensitive, I want to make sure this
is done right, as opposed to rushing it with some half-baked
concoction that will be maybe possibly be replaced "later". From
talking to folks at Plumbers, I believe most of the remaining issues
are taken care of by the upcoming v9, and that you're overstating the
status of discussions regarding that.
I think the remaining issue right now is how to order my series and
Eric's series. If Eric's goes in first, it means that I can either a)
spend some time developing Zinc further _now_ to support chacha12 and
keep the top two conversion patches, or b) just drop the top two
conversion patches and work that out carefully with Eric after. I
think (b) would be better, but I'm happy to do (a) if you disagree.
And as I mentioned in the last email, I'd prefer Eric's work to go in
after Zinc, but I don't think the reasoning for that is particularly
strong, so it seems fine to merge Eric's work first.
I'll post v9 pretty soon and you can see how things are shaping up.
Hopefully before then Eric/Ard/you can provide some feedback on
whether you'd prefer (a) or (b) above.
Regards,
Jason