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crypto: add ability to query hash digest len

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Add a qcrypto_hash_digest_len() method which allows querying of
the raw digest size for a given hash algorithm.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange 2015-10-23 16:14:50 +01:00
parent dd2bf9eb95
commit 7b36064c90
3 changed files with 31 additions and 0 deletions
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5
tests/test-crypto-hash.c
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@ -163,6 +163,11 @@ static void test_hash_digest(void)
for (i = 0; i < G_N_ELEMENTS(expected_outputs) ; i++) {
int ret;
char *digest;
size_t digestsize;
digestsize = qcrypto_hash_digest_len(i);
g_assert_cmpint(digestsize * 2, ==, strlen(expected_outputs[i]));
ret = qcrypto_hash_digest(i,
INPUT_TEXT,