@deftypefun {int} {gnutls_pubkey_print} (gnutls_pubkey_t @var{pubkey}, gnutls_certificate_print_formats_t @var{format}, gnutls_datum_t * @var{out}) @var{pubkey}: The data to be printed @var{format}: Indicate the format to use @var{out}: Newly allocated datum with null terminated string. This function will pretty print public key information, suitable for display to a human. Only @code{GNUTLS_CRT_PRINT_FULL} and @code{GNUTLS_CRT_PRINT_FULL_NUMBERS} are implemented. The output @code{out} needs to be deallocated using @code{gnutls_free()} . @strong{Returns:} On success, @code{GNUTLS_E_SUCCESS} (0) is returned, otherwise a negative error value. @strong{Since:} 3.1.5 @end deftypefun