poly1305_auth
poly1305_auth(mac, nacl_msg, sizeof(nacl_msg), nacl_key);
void poly1305_auth(unsigned char mac[16], const unsigned char *m, size_t bytes,
poly1305_auth(mac, wrap_msg, sizeof(wrap_msg), wrap_key);
poly1305_auth(mac, all_msg, i, all_key);
poly1305_auth(expected_tag, src, aadlen + len, poly_key);
poly1305_auth(dest + aadlen + len, dest, aadlen + len,
poly1305_auth(dest + aadlen + len, dest, aadlen + len,
poly1305_auth(expected_tag, src, aadlen + len, poly_key);
void poly1305_auth(u_char out[POLY1305_TAGLEN], const u_char *m, size_t inlen,