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., 51 Franklin Street, Fifth Floor, Boston, MA
20 FILE_LICENCE ( GPL2_OR_LATER );
25 * Null crypto algorithm
29 #include <ipxe/crypto.h>
31 static void digest_null_init ( void *ctx __unused ) {
35 static void digest_null_update ( void *ctx __unused, const void *src __unused,
36 size_t len __unused ) {
40 static void digest_null_final ( void *ctx __unused, void *out __unused ) {
44 struct digest_algorithm digest_null = {
49 .init = digest_null_init,
50 .update = digest_null_update,
51 .final = digest_null_final,
54 static int cipher_null_setkey ( void *ctx __unused, const void *key __unused,
55 size_t keylen __unused ) {
60 static void cipher_null_setiv ( void *ctx __unused,
61 const void *iv __unused ) {
65 static void cipher_null_encrypt ( void *ctx __unused, const void *src,
66 void *dst, size_t len ) {
67 memcpy ( dst, src, len );
70 static void cipher_null_decrypt ( void *ctx __unused, const void *src,
71 void *dst, size_t len ) {
72 memcpy ( dst, src, len );
75 struct cipher_algorithm cipher_null = {
79 .setkey = cipher_null_setkey,
80 .setiv = cipher_null_setiv,
81 .encrypt = cipher_null_encrypt,
82 .decrypt = cipher_null_decrypt,
85 static int pubkey_null_init ( void *ctx __unused, const void *key __unused,
86 size_t key_len __unused ) {
90 static size_t pubkey_null_max_len ( void *ctx __unused ) {
94 static int pubkey_null_encrypt ( void *ctx __unused,
95 const void *plaintext __unused,
96 size_t plaintext_len __unused,
97 void *ciphertext __unused ) {
101 static int pubkey_null_decrypt ( void *ctx __unused,
102 const void *ciphertext __unused,
103 size_t ciphertext_len __unused,
104 void *plaintext __unused ) {
108 static int pubkey_null_sign ( void *ctx __unused,
109 struct digest_algorithm *digest __unused,
110 const void *value __unused,
111 void *signature __unused ) {
115 static int pubkey_null_verify ( void *ctx __unused,
116 struct digest_algorithm *digest __unused,
117 const void *value __unused,
118 const void *signature __unused ,
119 size_t signature_len __unused ) {
123 static void pubkey_null_final ( void *ctx __unused ) {
127 struct pubkey_algorithm pubkey_null = {
130 .init = pubkey_null_init,
131 .max_len = pubkey_null_max_len,
132 .encrypt = pubkey_null_encrypt,
133 .decrypt = pubkey_null_decrypt,
134 .sign = pubkey_null_sign,
135 .verify = pubkey_null_verify,
136 .final = pubkey_null_final,