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[v5,18/30] crypto: picoxcell/des - switch to new verification routines

Message ID 20190815090112.9377-19-ard.biesheuvel@linaro.org
State Accepted
Commit 0157fb268893cddeb79c3cb6fc05d13a132aa66c
Headers show
Series crypto: DES/3DES cleanup | expand

Commit Message

Ard Biesheuvel Aug. 15, 2019, 9:01 a.m. UTC 
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

---
 drivers/crypto/picoxcell_crypto.c | 24 +++++++-------------
 1 file changed, 8 insertions(+), 16 deletions(-)

-- 
2.17.1
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Patch

diff --git a/drivers/crypto/picoxcell_crypto.c b/drivers/crypto/picoxcell_crypto.c
index 9a939b4fd32f..3cbefb41b099 100644
--- a/drivers/crypto/picoxcell_crypto.c
+++ b/drivers/crypto/picoxcell_crypto.c
@@ -6,7 +6,7 @@ 
 #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>
@@ -736,16 +736,12 @@  static void spacc_aead_cra_exit(struct crypto_aead *tfm)
 static int spacc_des_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
 			    unsigned int len)
 {
-	struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
-	struct spacc_ablk_ctx *ctx = crypto_tfm_ctx(tfm);
-	u32 tmp[DES_EXPKEY_WORDS];
+	struct spacc_ablk_ctx *ctx = crypto_ablkcipher_ctx(cipher);
+	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 = verify_ablkcipher_des_key(cipher, key);
+	if (err)
+		return err;
 
 	memcpy(ctx->key, key, len);
 	ctx->key_len = len;
@@ -761,15 +757,11 @@  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 = verify_ablkcipher_des3_key(cipher, key);
+	if (err)
 		return err;
-	}
 
 	memcpy(ctx->key, key, len);
 	ctx->key_len = len;