diff mbox series

[v3,11/30] crypto: hifn/des - switch to new verification routines

Message ID 20190628093529.12281-12-ard.biesheuvel@linaro.org
State Superseded
Headers show
Series crypto: DES/3DES cleanup | expand

Commit Message

Ard Biesheuvel June 28, 2019, 9:35 a.m. UTC 
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

---
 drivers/crypto/hifn_795x.c | 29 +++++---------------
 1 file changed, 7 insertions(+), 22 deletions(-)

-- 
2.20.1
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Patch

diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
index d656be0a142b..5a86d0cf9070 100644
--- a/drivers/crypto/hifn_795x.c
+++ b/drivers/crypto/hifn_795x.c
@@ -30,7 +30,7 @@ 
 #include <linux/ktime.h>
 
 #include <crypto/algapi.h>
-#include <crypto/des.h>
+#include <crypto/internal/des.h>
 
 static char hifn_pll_ref[sizeof("extNNN")] = "ext";
 module_param_string(hifn_pll_ref, hifn_pll_ref, sizeof(hifn_pll_ref), 0444);
@@ -1951,22 +1951,11 @@  static int hifn_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
 	struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
 	struct hifn_context *ctx = crypto_tfm_ctx(tfm);
 	struct hifn_device *dev = ctx->dev;
+	int err;
 
-	if (len > HIFN_MAX_CRYPT_KEY_LENGTH) {
-		crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
-		return -1;
-	}
-
-	if (len == HIFN_DES_KEY_LENGTH) {
-		u32 tmp[DES_EXPKEY_WORDS];
-		int ret = des_ekey(tmp, key);
-
-		if (unlikely(ret == 0) &&
-		    (tfm->crt_flags & CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)) {
-			tfm->crt_flags |= CRYPTO_TFM_RES_WEAK_KEY;
-			return -EINVAL;
-		}
-	}
+	err = crypto_des_verify_key(tfm, key);
+	if (err)
+		return err;
 
 	dev->flags &= ~HIFN_FLAG_OLD_KEY;
 
@@ -1981,15 +1970,11 @@  static int hifn_des3_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
 {
 	struct hifn_context *ctx = crypto_ablkcipher_ctx(cipher);
 	struct hifn_device *dev = ctx->dev;
-	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 (err)
 		return err;
-	}
 
 	dev->flags &= ~HIFN_FLAG_OLD_KEY;