diff mbox series

[v2,18/30] crypto: picoxcell/des - switch to new verification routines

Message ID 20190627120314.7197-19-ard.biesheuvel@linaro.org
State Superseded
Headers show
Series crypto: DES/3DES cleanup | expand

Commit Message

Ard Biesheuvel June 27, 2019, 12:03 p.m. UTC 
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

---
 drivers/crypto/picoxcell_crypto.c | 21 +++++++-------------
 1 file changed, 7 insertions(+), 14 deletions(-)

-- 
2.20.1
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Patch

diff --git a/drivers/crypto/picoxcell_crypto.c b/drivers/crypto/picoxcell_crypto.c
index 05b89e703903..31bc23665400 100644
--- a/drivers/crypto/picoxcell_crypto.c
+++ b/drivers/crypto/picoxcell_crypto.c
@@ -19,7 +19,7 @@ 
 #include <crypto/aes.h>
 #include <crypto/algapi.h>
 #include <crypto/authenc.h>
-#include <crypto/des.h>
+#include <crypto/internal/des.h>
 #include <crypto/md5.h>
 #include <crypto/sha.h>
 #include <crypto/internal/skcipher.h>
@@ -751,14 +751,11 @@  static int spacc_des_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
 {
 	struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
 	struct spacc_ablk_ctx *ctx = crypto_tfm_ctx(tfm);
-	u32 tmp[DES_EXPKEY_WORDS];
+	int err;
 
-	if (unlikely(!des_ekey(tmp, key)) &&
-	    (crypto_ablkcipher_get_flags(cipher) &
-	     CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)) {
-		tfm->crt_flags |= CRYPTO_TFM_RES_WEAK_KEY;
-		return -EINVAL;
-	}
+	err = crypto_des_verify_key(tfm, key);
+	if (unlikely(err))
+		return err;
 
 	memcpy(ctx->key, key, len);
 	ctx->key_len = len;
@@ -774,15 +771,11 @@  static int spacc_des3_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
 			     unsigned int len)
 {
 	struct spacc_ablk_ctx *ctx = crypto_ablkcipher_ctx(cipher);
-	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);
+	err = crypto_des3_ede_verify_key(crypto_ablkcipher_tfm(cipher), key);
+	if (unlikely(err))
 		return err;
-	}
 
 	memcpy(ctx->key, key, len);
 	ctx->key_len = len;