Received-SPF: pass (google.com: best guess record for domain of linux-crypto-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Ard Biesheuvel <ard.biesheuvel@linaro.org>
To:     linux-crypto@vger.kernel.org
Cc:     herbert@gondor.apana.org.au, ebiggers@kernel.org,
        horia.geanta@nxp.com, Ard Biesheuvel <ard.biesheuvel@linaro.org>
Subject: [PATCH v3 23/30] crypto: talitos/des - switch to new verification routines
Date:   Fri, 28 Jun 2019 11:35:22 +0200
Message-Id: <20190628093529.12281-24-ard.biesheuvel@linaro.org>
In-Reply-To: <20190628093529.12281-1-ard.biesheuvel@linaro.org>
References: <20190628093529.12281-1-ard.biesheuvel@linaro.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: linux-crypto-owner@vger.kernel.org
Precedence: bulk

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
 drivers/crypto/talitos.c | 34 ++++----------------
 1 file changed, 7 insertions(+), 27 deletions(-)

diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index c865f5d5eaba..3ad97e42fafb 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -30,7 +30,7 @@
 
 #include <crypto/algapi.h>
 #include <crypto/aes.h>
-#include <crypto/des.h>
+#include <crypto/internal/des.h>
 #include <crypto/sha.h>
 #include <crypto/md5.h>
 #include <crypto/internal/aead.h>
@@ -923,12 +923,9 @@ static int aead_des3_setkey(struct crypto_aead *authenc,
 	if (keys.enckeylen != DES3_EDE_KEY_SIZE)
 		goto badkey;
 
-	flags = crypto_aead_get_flags(authenc);
-	err = __des3_verify_key(&flags, keys.enckey);
-	if (unlikely(err)) {
-		crypto_aead_set_flags(authenc, flags);
+	err = crypto_des3_ede_verify_key(crypto_aead_tfm(authenc), keys.enckey);
+	if (err)
 		goto out;
-	}
 
 	if (ctx->keylen)
 		dma_unmap_single(dev, ctx->dma_key, ctx->keylen, DMA_TO_DEVICE);
@@ -1538,32 +1535,15 @@ static int ablkcipher_setkey(struct crypto_ablkcipher *cipher,
 static int ablkcipher_des_setkey(struct crypto_ablkcipher *cipher,
 				 const u8 *key, unsigned int keylen)
 {
-	u32 tmp[DES_EXPKEY_WORDS];
-
-	if (unlikely(crypto_ablkcipher_get_flags(cipher) &
-		     CRYPTO_TFM_REQ_FORBID_WEAK_KEYS) &&
-	    !des_ekey(tmp, key)) {
-		crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_WEAK_KEY);
-		return -EINVAL;
-	}
-
-	return ablkcipher_setkey(cipher, key, keylen);
+	return crypto_des_verify_key(crypto_ablkcipher_tfm(cipher), key) ?:
+	       ablkcipher_setkey(cipher, key, keylen);
 }
 
 static int ablkcipher_des3_setkey(struct crypto_ablkcipher *cipher,
 				  const u8 *key, unsigned int keylen)
 {
-	u32 flags;
-	int err;
-
-	flags = crypto_ablkcipher_get_flags(cipher);
-	err = __des3_verify_key(&flags, key);
-	if (unlikely(err)) {
-		crypto_ablkcipher_set_flags(cipher, flags);
-		return err;
-	}
-
-	return ablkcipher_setkey(cipher, key, keylen);
+	return crypto_des3_ede_verify_key(crypto_ablkcipher_tfm(cipher), key) ?:
+	       ablkcipher_setkey(cipher, key, keylen);
 }
 
 static int ablkcipher_aes_setkey(struct crypto_ablkcipher *cipher,
-- 
2.20.1