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crypto: hisilicon/sec2 - Fix aead authentication setting key error

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Fix aead auth setting key process error. if use soft shash function, driver
need to use digest size replace of the user input key length.

Signed-off-by: Kai Ye <yekai13@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Kai Ye 2020-11-09 17:00:27 +08:00 committed by Herbert Xu
parent c4fc6328d6
commit 5761498c4d
1 changed files with 3 additions and 2 deletions
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5
drivers/crypto/hisilicon/sec2/sec_crypto.c
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@ -857,7 +857,7 @@ static int sec_aead_auth_set_key(struct sec_auth_ctx *ctx,
struct crypto_authenc_keys *keys)
{
struct crypto_shash *hash_tfm = ctx->hash_tfm;
int blocksize, ret;
int blocksize, digestsize, ret;
if (!keys->authkeylen) {
pr_err("hisi_sec2: aead auth key error!\n");
@ -865,6 +865,7 @@ static int sec_aead_auth_set_key(struct sec_auth_ctx *ctx,
}
blocksize = crypto_shash_blocksize(hash_tfm);
digestsize = crypto_shash_digestsize(hash_tfm);
if (keys->authkeylen > blocksize) {
ret = crypto_shash_tfm_digest(hash_tfm, keys->authkey,
keys->authkeylen, ctx->a_key);
@ -872,7 +873,7 @@ static int sec_aead_auth_set_key(struct sec_auth_ctx *ctx,
pr_err("hisi_sec2: aead auth digest error!\n");
return -EINVAL;
}
ctx->a_key_len = blocksize;
ctx->a_key_len = digestsize;
} else {
memcpy(ctx->a_key, keys->authkey, keys->authkeylen);
ctx->a_key_len = keys->authkeylen;