gnupg/g10/keyid.c

89 lines
2.1 KiB
C

/* keyid.c - jeyid and fingerprint handling
* Copyright (c) 1997 by Werner Koch (dd9jn)
*
* This file is part of G10.
*
* G10 is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* G10 is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <assert.h>
#include "util.h"
#include "main.h"
#include "packet.h"
#include "options.h"
#include "mpi.h"
#include "keydb.h"
/****************
* Get the keyid from the secret key certificate and put it into keyid
* if this is not NULL. Return the 32 low bits of the keyid.
*/
u32
keyid_from_skc( PKT_seckey_cert *skc, u32 *keyid )
{
u32 lowbits;
u32 dummy_keyid[2];
if( !keyid )
keyid = dummy_keyid;
if( skc->pubkey_algo == PUBKEY_ALGO_ELGAMAL ) {
lowbits = mpi_get_keyid( skc->d.elg.y, keyid );
}
else if( skc->pubkey_algo == PUBKEY_ALGO_RSA ) {
lowbits = mpi_get_keyid( skc->d.rsa.rsa_n, keyid );
}
else
log_bug(NULL);
return lowbits;
}
/****************
* Get the keyid from the public key certificate and put it into keyid
* if this is not NULL. Return the 32 low bits of the keyid.
*/
u32
keyid_from_pkc( PKT_pubkey_cert *pkc, u32 *keyid )
{
u32 lowbits;
u32 dummy_keyid[2];
if( !keyid )
keyid = dummy_keyid;
if( pkc->pubkey_algo == PUBKEY_ALGO_ELGAMAL ) {
lowbits = mpi_get_keyid( pkc->d.elg.y, keyid );
}
else if( pkc->pubkey_algo == PUBKEY_ALGO_RSA ) {
lowbits = mpi_get_keyid( pkc->d.rsa.rsa_n, keyid );
}
else
log_bug(NULL);
return lowbits;
}