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-rw-r--r--drivers/crypto/stm32/stm32-cryp.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c
index 23b0b7bd64c7..5785f3e235ce 100644
--- a/drivers/crypto/stm32/stm32-cryp.c
+++ b/drivers/crypto/stm32/stm32-cryp.c
@@ -762,10 +762,17 @@ static int stm32_cryp_des_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
static int stm32_cryp_tdes_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
unsigned int keylen)
{
- if (keylen != (3 * DES_KEY_SIZE))
- return -EINVAL;
- else
- return stm32_cryp_setkey(tfm, key, keylen);
+ u32 flags;
+ int err;
+
+ flags = crypto_ablkcipher_get_flags(tfm);
+ err = __des3_verify_key(&flags, key);
+ if (unlikely(err)) {
+ crypto_ablkcipher_set_flags(tfm, flags);
+ return err;
+ }
+
+ return stm32_cryp_setkey(tfm, key, keylen);
}
static int stm32_cryp_aes_aead_setkey(struct crypto_aead *tfm, const u8 *key,