t4_init_hmac_digest
void t4_init_hmac_digest(const struct auth_hash *, u_int, const char *, int,
t4_init_hmac_digest(auth_hash, partial_digest_len,
t4_init_hmac_digest(s->hmac.auth_hash,
t4_init_hmac_digest(s->hmac.auth_hash,
t4_init_hmac_digest(axf, mac_key_size, tls->params.auth_key,