2023-01-17 17:36:18

by Vladis Dronov

Subject: [PATCH] crypto: testmgr - disallow certain DRBG hash functions in FIPS mode

According to FIPS 140-3 IG, section D.R "Hash Functions Acceptable for
Use in the SP 800-90A DRBGs", modules certified after May 16th, 2023
must not support the use of: SHA-224, SHA-384, SHA512-224, SHA512-256,
SHA3-224, SHA3-384. Disallow HMAC and HASH DRBGs using SHA-384 in FIPS
mode.

Signed-off-by: Vladis Dronov <[email protected]>
---
Some details:

The following DRBG algos are defined in testmgr.c as of now:

drbg_{no,}pr_ctr_aes128
drbg_{no,}pr_ctr_aes192
drbg_{no,}pr_ctr_aes256

drbg_{no,}pr_hmac_sha1
drbg_{no,}pr_hmac_sha256
drbg_{no,}pr_hmac_sha384 (disallow)
drbg_{no,}pr_hmac_sha512

drbg_{no,}pr_sha1
drbg_{no,}pr_sha256
drbg_{no,}pr_sha384 (disallow)
drbg_{no,}pr_sha512

Marked DRBGs should be disallowed in FIPS mode according to
the requirements above.
---
crypto/testmgr.c | 4 ----
1 file changed, 4 deletions(-)

diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 4476ac97baa5..fbb53d961ea9 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -4782,7 +4782,6 @@ static const struct alg_test_desc alg_test_descs[] = {
}, {
/* covered by drbg_nopr_hmac_sha256 test */
.alg = "drbg_nopr_hmac_sha384",
- .fips_allowed = 1,
.test = alg_test_null,
}, {
.alg = "drbg_nopr_hmac_sha512",
@@ -4805,7 +4804,6 @@ static const struct alg_test_desc alg_test_descs[] = {
}, {
/* covered by drbg_nopr_sha256 test */
.alg = "drbg_nopr_sha384",
- .fips_allowed = 1,
.test = alg_test_null,
}, {
.alg = "drbg_nopr_sha512",
@@ -4841,7 +4839,6 @@ static const struct alg_test_desc alg_test_descs[] = {
}, {
/* covered by drbg_pr_hmac_sha256 test */
.alg = "drbg_pr_hmac_sha384",
- .fips_allowed = 1,
.test = alg_test_null,
}, {
.alg = "drbg_pr_hmac_sha512",
@@ -4861,7 +4858,6 @@ static const struct alg_test_desc alg_test_descs[] = {
}, {
/* covered by drbg_pr_sha256 test */
.alg = "drbg_pr_sha384",
- .fips_allowed = 1,
.test = alg_test_null,
}, {
.alg = "drbg_pr_sha512",
--
2.39.0

2023-01-17 20:07:45

by Stephan Müller

Subject: Re: [PATCH] crypto: testmgr - disallow certain DRBG hash functions in FIPS mode

Am Dienstag, 17. Januar 2023, 18:20:06 CET schrieb Vladis Dronov:

Hi Vladis,

> According to FIPS 140-3 IG, section D.R "Hash Functions Acceptable for
> Use in the SP 800-90A DRBGs", modules certified after May 16th, 2023
> must not support the use of: SHA-224, SHA-384, SHA512-224, SHA512-256,
> SHA3-224, SHA3-384. Disallow HMAC and HASH DRBGs using SHA-384 in FIPS
> mode.
>
> Signed-off-by: Vladis Dronov <[email protected]>

Thank you very much for the patch!

Reviewed-by: Stephan M?ller <[email protected]>

> ---
> Some details:
>
> The following DRBG algos are defined in testmgr.c as of now:
>
> drbg_{no,}pr_ctr_aes128
> drbg_{no,}pr_ctr_aes192
> drbg_{no,}pr_ctr_aes256
>
> drbg_{no,}pr_hmac_sha1
> drbg_{no,}pr_hmac_sha256
> drbg_{no,}pr_hmac_sha384 (disallow)
> drbg_{no,}pr_hmac_sha512
>
> drbg_{no,}pr_sha1
> drbg_{no,}pr_sha256
> drbg_{no,}pr_sha384 (disallow)
> drbg_{no,}pr_sha512
>
> Marked DRBGs should be disallowed in FIPS mode according to
> the requirements above.
> ---
> crypto/testmgr.c | 4 ----
> 1 file changed, 4 deletions(-)
>
> diff --git a/crypto/testmgr.c b/crypto/testmgr.c
> index 4476ac97baa5..fbb53d961ea9 100644
> --- a/crypto/testmgr.c
> +++ b/crypto/testmgr.c
> @@ -4782,7 +4782,6 @@ static const struct alg_test_desc alg_test_descs[] = {
> }, {
> /* covered by drbg_nopr_hmac_sha256 test */
> .alg = "drbg_nopr_hmac_sha384",
> - .fips_allowed = 1,
> .test = alg_test_null,
> }, {
> .alg = "drbg_nopr_hmac_sha512",
> @@ -4805,7 +4804,6 @@ static const struct alg_test_desc alg_test_descs[] = {
> }, {
> /* covered by drbg_nopr_sha256 test */
> .alg = "drbg_nopr_sha384",
> - .fips_allowed = 1,
> .test = alg_test_null,
> }, {
> .alg = "drbg_nopr_sha512",
> @@ -4841,7 +4839,6 @@ static const struct alg_test_desc alg_test_descs[] = {
> }, {
> /* covered by drbg_pr_hmac_sha256 test */
> .alg = "drbg_pr_hmac_sha384",
> - .fips_allowed = 1,
> .test = alg_test_null,
> }, {
> .alg = "drbg_pr_hmac_sha512",
> @@ -4861,7 +4858,6 @@ static const struct alg_test_desc alg_test_descs[] = {
> }, {
> /* covered by drbg_pr_sha256 test */
> .alg = "drbg_pr_sha384",
> - .fips_allowed = 1,
> .test = alg_test_null,
> }, {
> .alg = "drbg_pr_sha512",


Ciao
Stephan

2023-01-27 11:07:27

by Herbert Xu

Subject: Re: [PATCH] crypto: testmgr - disallow certain DRBG hash functions in FIPS mode

On Tue, Jan 17, 2023 at 06:20:06PM +0100, Vladis Dronov wrote:
> According to FIPS 140-3 IG, section D.R "Hash Functions Acceptable for
> Use in the SP 800-90A DRBGs", modules certified after May 16th, 2023
> must not support the use of: SHA-224, SHA-384, SHA512-224, SHA512-256,
> SHA3-224, SHA3-384. Disallow HMAC and HASH DRBGs using SHA-384 in FIPS
> mode.
>
> Signed-off-by: Vladis Dronov <[email protected]>
> ---
> Some details:
>
> The following DRBG algos are defined in testmgr.c as of now:
>
> drbg_{no,}pr_ctr_aes128
> drbg_{no,}pr_ctr_aes192
> drbg_{no,}pr_ctr_aes256
>
> drbg_{no,}pr_hmac_sha1
> drbg_{no,}pr_hmac_sha256
> drbg_{no,}pr_hmac_sha384 (disallow)
> drbg_{no,}pr_hmac_sha512
>
> drbg_{no,}pr_sha1
> drbg_{no,}pr_sha256
> drbg_{no,}pr_sha384 (disallow)
> drbg_{no,}pr_sha512
>
> Marked DRBGs should be disallowed in FIPS mode according to
> the requirements above.
> ---
> crypto/testmgr.c | 4 ----
> 1 file changed, 4 deletions(-)

Patch applied. Thanks.
--
Email: Herbert Xu <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt