NAME

       gnutls_pubkey_get_openpgp_key_id - API function

SYNOPSIS

       #include <gnutls/abstract.h>

       int  gnutls_pubkey_get_openpgp_key_id(gnutls_pubkey_t  key,  unsigned  int flags, unsigned
       char * output_data, size_t * output_data_size, unsigned int * subkey);

ARGUMENTS

       gnutls_pubkey_t key
                   Holds the public key

       unsigned int flags
                   should be 0 or GNUTLS_PUBKEY_GET_OPENPGP_FINGERPRINT

       unsigned char * output_data
                   will contain the key ID

       size_t * output_data_size
                   holds the size of output_data (and will be replaced  by  the  actual  size  of
                   parameters)

       unsigned int * subkey
                   Will be non zero if the key ID corresponds to a subkey

DESCRIPTION

       This function returns the OpenPGP key ID of the corresponding key.  The key is a unique ID
       that depends on the public key parameters.

       If the flag GNUTLS_PUBKEY_GET_OPENPGP_FINGERPRINT is specified this function  returns  the
       fingerprint of the master key.

       If  the  buffer  provided is not long enough to hold the output, then *output_data_size is
       updated   and   GNUTLS_E_SHORT_MEMORY_BUFFER   will   be   returned.    The   output    is
       GNUTLS_OPENPGP_KEYID_SIZE bytes long.

RETURNS

       In case of failure a negative error code will be returned, and 0 on success.

SINCE

       3.0

REPORTING BUGS

       Report bugs to <bugs@gnutls.org>.
       Home page: http://www.gnutls.org

COPYRIGHT

       Copyright © 2001-2021 Free Software Foundation, Inc., and others.
       Copying  and distribution of this file, with or without modification, are permitted in any
       medium without royalty provided the copyright notice and this notice are preserved.

SEE ALSO

       The  full  documentation  for  gnutls  is  maintained  as  a  Texinfo  manual.    If   the
       /usr/share/doc/gnutls/ directory does not contain the HTML form visit

       http://www.gnutls.org/manual/