hmac_sha1
hmac_sha1(HMAC_SHA1_KEY(desc->tfm), data, len, out);
void hmac_sha1(const struct hmac_sha1_key *key,
EXPORT_SYMBOL_GPL(hmac_sha1);
#define HMAC hmac_sha1
hmac_sha1(&hinfo->key.sha1, ring, plen, output);