NAME

       gnutls_openpgp_crt_get_auth_subkey - API function

SYNOPSIS

       #include <gnutls/openpgp.h>

       int  gnutls_openpgp_crt_get_auth_subkey(gnutls_openpgp_crt_t  crt,  gnutls_openpgp_keyid_t
       keyid, unsigned int flag);

ARGUMENTS

       gnutls_openpgp_crt_t crt
                   the structure that contains the OpenPGP public key.

       gnutls_openpgp_keyid_t keyid
                   the struct to save the keyid.

       unsigned int flag
                   Non-zero indicates that a valid subkey is always returned.

DESCRIPTION

       Returns the 64-bit keyID of the first valid OpenPGP subkey marked for authentication.   If
       flag is non-zero and no authentication subkey exists, then a valid subkey will be returned
       even if it is not marked for authentication.

RETURNS

       GNUTLS_E_SUCCESS on success, or an error code.

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/