POLY1305_TAGLEN
if (timingsafe_bcmp(expected_tag, tag, POLY1305_TAGLEN) != 0) {
u_char expected_tag[POLY1305_TAGLEN], poly_key[POLY1305_KEYLEN];
u_char expected_tag[POLY1305_TAGLEN], poly_key[POLY1305_KEYLEN];
if (timingsafe_bcmp(expected_tag, tag, POLY1305_TAGLEN) != 0) {
poly1305_auth(unsigned char out[POLY1305_TAGLEN], const unsigned char *m, size_t inlen, const unsigned char key[POLY1305_KEYLEN]) {
void poly1305_auth(u_char out[POLY1305_TAGLEN], const u_char *m, size_t inlen,
__attribute__((__bounded__(__minbytes__, 1, POLY1305_TAGLEN)))