NAME

       gnutls_openpgp_crt_get_subkey_pk_algorithm - API function

SYNOPSIS

       #include <gnutls/openpgp.h>

       gnutls_pk_algorithm_t gnutls_openpgp_crt_get_subkey_pk_algorithm(gnutls_openpgp_crt_t key,
       unsigned int idx, unsigned int * bits);

ARGUMENTS

       gnutls_openpgp_crt_t key
                   is an OpenPGP key

       unsigned int idx
                   is the subkey index

       unsigned int * bits
                   if bits is non null it will hold the size of the parameters' in bits

DESCRIPTION

       This function will return the public key algorithm of a subkey of an OpenPGP certificate.

       If bits is non null, it should have enough size to hold the parameters size in bits.   For
       RSA  the  bits  returned  is  the  modulus.   For  DSA the bits returned are of the public
       exponent.

RETURNS

       a member of the gnutls_pk_algorithm_t enumeration  on  success,  or  GNUTLS_PK_UNKNOWN  on
       error.

SINCE

       2.4.0

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/