2 * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 * Null crypto algorithm
25 #include <gpxe/crypto.h>
27 static void null_init ( void *ctx __unused ) {
31 static int null_setkey ( void *ctx __unused, void *key __unused,
32 size_t keylen __unused ) {
37 static void null_encode ( void *ctx __unused, const void *src __unused,
38 void *dst __unused, size_t len __unused ) {
42 static void null_decode ( void *ctx __unused, const void *src __unused,
43 void *dst __unused, size_t len __unused ) {
47 static void null_final ( void *ctx __unused, void *out __unused ) {
51 struct crypto_algorithm crypto_null = {
57 .setkey = null_setkey,
58 .encode = null_encode,
59 .decode = null_decode,