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pkcs7: use crypto_shash_digest()

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Use crypto_shash_digest() instead of crypto_shash_init() followed by
crypto_shash_finup().  (For simplicity only; they are equivalent.)

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
Eric Biggers 2017-12-08 15:13:28 +00:00 committed by David Howells
parent 7204eb8590
commit a80745a6de
1 changed files with 2 additions and 5 deletions
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7
crypto/asymmetric_keys/pkcs7_verify.c
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@ -59,11 +59,8 @@ static int pkcs7_digest(struct pkcs7_message *pkcs7,
desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;
/* Digest the message [RFC2315 9.3] */
ret = crypto_shash_init(desc);
if (ret < 0)
goto error;
ret = crypto_shash_finup(desc, pkcs7->data, pkcs7->data_len,
sig->digest);
ret = crypto_shash_digest(desc, pkcs7->data, pkcs7->data_len,
sig->digest);
if (ret < 0)
goto error;
pr_devel("MsgDigest = [%*ph]\n", 8, sig->digest);