@deftypefun {unsigned} {gnutls_cipher_get_tag_size} (gnutls_cipher_algorithm_t @var{algorithm})
@var{algorithm}: is an encryption algorithm

This function returns the tag size of an authenticated encryption
algorithm. For non-AEAD algorithms, it returns zero.

@strong{Returns:} the tag size of the authenticated encryption algorithm.

@strong{Since:} 3.2.2
@end deftypefun