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crypto: stm32/des - switch to new verification routines 

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Ard Biesheuvel 2019-08-15 12:01:03 +03:00 committed by Herbert Xu
parent 4eaef05210
commit b5d0ba83a0
1 changed files with 5 additions and 25 deletions
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30
drivers/crypto/stm32/stm32-cryp.c
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@ -15,7 +15,7 @@
#include <linux/reset.h>
#include <crypto/aes.h>
#include <crypto/des.h>
#include <crypto/internal/des.h>
#include <crypto/engine.h>
#include <crypto/scatterwalk.h>
#include <crypto/internal/aead.h>
@ -767,35 +767,15 @@ static int stm32_cryp_aes_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
static int stm32_cryp_des_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
unsigned int keylen)
{
u32 tmp[DES_EXPKEY_WORDS];
if (keylen != DES_KEY_SIZE)
return -EINVAL;
if ((crypto_ablkcipher_get_flags(tfm) &
CRYPTO_TFM_REQ_FORBID_WEAK_KEYS) &&
unlikely(!des_ekey(tmp, key))) {
crypto_ablkcipher_set_flags(tfm, CRYPTO_TFM_RES_WEAK_KEY);
return -EINVAL;
}
return stm32_cryp_setkey(tfm, key, keylen);
return verify_ablkcipher_des_key(tfm, key) ?:
stm32_cryp_setkey(tfm, key, keylen);
}
static int stm32_cryp_tdes_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
unsigned int 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);
return verify_ablkcipher_des3_key(tfm, key) ?:
stm32_cryp_setkey(tfm, key, keylen);
}
static int stm32_cryp_aes_aead_setkey(struct crypto_aead *tfm, const u8 *key,