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OpenSSL: Replace internal HMAC-MD5 implementation

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Use OpenSSL HMAC_* functions to implement HMAC-MD5 instead of depending
on the src/crypto/md5.c implementation.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2015-01-27 13:26:01 +02:00 • committed by Jouni Malinen
parent 3f56a2b746
commit 983c6a606b
5 changed files with 56 additions and 5 deletions
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43
src/crypto/crypto_openssl.c
View file

@ -688,6 +688,49 @@ int crypto_hash_finish(struct crypto_hash *ctx, u8 *mac, size_t *len)
}
#ifndef CONFIG_FIPS
int hmac_md5_vector(const u8 *key, size_t key_len, size_t num_elem,
const u8 *addr[], const size_t *len, u8 *mac)
{
HMAC_CTX ctx;
size_t i;
unsigned int mdlen;
int res;
HMAC_CTX_init(&ctx);
#if OPENSSL_VERSION_NUMBER < 0x00909000
HMAC_Init_ex(&ctx, key, key_len, EVP_md5(), NULL);
#else /* openssl < 0.9.9 */
if (HMAC_Init_ex(&ctx, key, key_len, EVP_md5(), NULL) != 1)
return -1;
#endif /* openssl < 0.9.9 */
for (i = 0; i < num_elem; i++)
HMAC_Update(&ctx, addr[i], len[i]);
mdlen = 16;
#if OPENSSL_VERSION_NUMBER < 0x00909000
HMAC_Final(&ctx, mac, &mdlen);
res = 1;
#else /* openssl < 0.9.9 */
res = HMAC_Final(&ctx, mac, &mdlen);
#endif /* openssl < 0.9.9 */
HMAC_CTX_cleanup(&ctx);
return res == 1 ? 0 : -1;
}
int hmac_md5(const u8 *key, size_t key_len, const u8 *data, size_t data_len,
u8 *mac)
{
return hmac_md5_vector(key, key_len, 1, &data, &data_len, mac);
}
#endif /* CONFIG_FIPS */
int pbkdf2_sha1(const char *passphrase, const u8 *ssid, size_t ssid_len,
int iterations, u8 *buf, size_t buflen)
{