@deftypefun {size_t} {gnutls_mac_get_nonce_size} (gnutls_mac_algorithm_t @var{algorithm})
@var{algorithm}: is an encryption algorithm

Returns the size of the nonce used by the MAC in TLS.

@strong{Returns:} length (in bytes) of the given MAC nonce size, or 0.

@strong{Since:} 3.2.0
@end deftypefun