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NAME

       gnutls_openpgp_privkey_get_subkey_pk_algorithm  -  return  the subkey’s
       PublicKey algorithm

SYNOPSIS

       #include <gnutls/openpgp.h>

       gnutls_pk_algorithm_t
       gnutls_openpgp_privkey_get_subkey_pk_algorithm(gnutls_openpgp_privkey_t
       key, unsigned int idx, unsigned int * bits);

ARGUMENTS

       gnutls_openpgp_privkey_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  a
       negative value on error.

SINCE

       2.4.0

REPORTING BUGS

       Report    bugs    to    <bug-gnutls@gnu.org>.     GnuTLS   home   page:
       http://www.gnu.org/software/gnutls/ General help  using  GNU  software:
       http://www.gnu.org/gethelp/

COPYRIGHT

       Copyright © 2008 Free Software Foundation.
       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 info and gnutls programs are properly installed  at  your  site,
       the command

              info gnutls

       should give you access to the complete manual.

gnutls                       gnutls_openpgp_privkey_get_subkey_pk_algorithm(3)