diff options
Diffstat (limited to 'drivers/crypto/amcc/crypto4xx_alg.c')
| -rw-r--r-- | drivers/crypto/amcc/crypto4xx_alg.c | 24 |
1 files changed, 8 insertions, 16 deletions
diff --git a/drivers/crypto/amcc/crypto4xx_alg.c b/drivers/crypto/amcc/crypto4xx_alg.c index cbfc607282f4..a42f8619589d 100644 --- a/drivers/crypto/amcc/crypto4xx_alg.c +++ b/drivers/crypto/amcc/crypto4xx_alg.c @@ -527,28 +527,20 @@ static int crypto4xx_aes_gcm_validate_keylen(unsigned int keylen) static int crypto4xx_compute_gcm_hash_key_sw(__le32 *hash_start, const u8 *key, unsigned int keylen) { - struct crypto_cipher *aes_tfm = NULL; + struct crypto_aes_ctx ctx; uint8_t src[16] = { 0 }; - int rc = 0; - - aes_tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_NEED_FALLBACK); - if (IS_ERR(aes_tfm)) { - rc = PTR_ERR(aes_tfm); - pr_warn("could not load aes cipher driver: %d\n", rc); - return rc; - } + int rc; - rc = crypto_cipher_setkey(aes_tfm, key, keylen); + rc = aes_expandkey(&ctx, key, keylen); if (rc) { - pr_err("setkey() failed: %d\n", rc); - goto out; + pr_err("aes_expandkey() failed: %d\n", rc); + return rc; } - crypto_cipher_encrypt_one(aes_tfm, src, src); + aes_encrypt(&ctx, src, src); crypto4xx_memcpy_to_le32(hash_start, src, 16); -out: - crypto_free_cipher(aes_tfm); - return rc; + memzero_explicit(&ctx, sizeof(ctx)); + return 0; } int crypto4xx_setkey_aes_gcm(struct crypto_aead *cipher, |