NAME         top

       gnutls_pubkey_get_openpgp_key_id - API function

SYNOPSIS         top

       #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         top

       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         top

       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         top

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

SINCE         top


REPORTING BUGS         top

       Report bugs to <>.
       Home page:

COPYRIGHT         top

       Copyright © 2001-2017 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         top

       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 

COLOPHON         top

       This page is part of the GnuTLS (GnuTLS Transport Layer Security
       Library) project.  Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual
       page, send it to  This page was obtained from the
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       any rendering problems in this HTML version of the page, or you
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gnutls                              3.5.9gnutls_pubkey_get_openpgp_key_id(3)