142 lines
3.6 KiB
C
142 lines
3.6 KiB
C
/*
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* Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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* You can also choose to distribute this program under the terms of
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* the Unmodified Binary Distribution Licence (as given in the file
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* COPYING.UBDL), provided that you have satisfied its requirements.
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*/
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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/**
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* @file
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*
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* Null crypto algorithm
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*/
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#include <string.h>
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#include <ipxe/crypto.h>
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static void digest_null_init ( void *ctx __unused ) {
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/* Do nothing */
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}
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static void digest_null_update ( void *ctx __unused, const void *src __unused,
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size_t len __unused ) {
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/* Do nothing */
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}
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static void digest_null_final ( void *ctx __unused, void *out __unused ) {
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/* Do nothing */
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}
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struct digest_algorithm digest_null = {
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.name = "null",
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.ctxsize = 0,
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.blocksize = 1,
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.digestsize = 0,
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.init = digest_null_init,
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.update = digest_null_update,
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.final = digest_null_final,
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};
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static int cipher_null_setkey ( void *ctx __unused, const void *key __unused,
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size_t keylen __unused ) {
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/* Do nothing */
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return 0;
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}
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static void cipher_null_setiv ( void *ctx __unused,
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const void *iv __unused ) {
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/* Do nothing */
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}
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static void cipher_null_encrypt ( void *ctx __unused, const void *src,
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void *dst, size_t len ) {
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memcpy ( dst, src, len );
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}
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static void cipher_null_decrypt ( void *ctx __unused, const void *src,
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void *dst, size_t len ) {
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memcpy ( dst, src, len );
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}
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struct cipher_algorithm cipher_null = {
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.name = "null",
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.ctxsize = 0,
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.blocksize = 1,
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.setkey = cipher_null_setkey,
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.setiv = cipher_null_setiv,
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.encrypt = cipher_null_encrypt,
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.decrypt = cipher_null_decrypt,
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};
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static int pubkey_null_init ( void *ctx __unused, const void *key __unused,
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size_t key_len __unused ) {
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return 0;
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}
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static size_t pubkey_null_max_len ( void *ctx __unused ) {
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return 0;
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}
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static int pubkey_null_encrypt ( void *ctx __unused,
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const void *plaintext __unused,
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size_t plaintext_len __unused,
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void *ciphertext __unused ) {
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return 0;
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}
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static int pubkey_null_decrypt ( void *ctx __unused,
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const void *ciphertext __unused,
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size_t ciphertext_len __unused,
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void *plaintext __unused ) {
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return 0;
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}
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static int pubkey_null_sign ( void *ctx __unused,
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struct digest_algorithm *digest __unused,
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const void *value __unused,
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void *signature __unused ) {
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return 0;
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}
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static int pubkey_null_verify ( void *ctx __unused,
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struct digest_algorithm *digest __unused,
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const void *value __unused,
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const void *signature __unused ,
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size_t signature_len __unused ) {
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return 0;
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}
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static void pubkey_null_final ( void *ctx __unused ) {
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/* Do nothing */
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}
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struct pubkey_algorithm pubkey_null = {
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.name = "null",
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.ctxsize = 0,
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.init = pubkey_null_init,
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.max_len = pubkey_null_max_len,
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.encrypt = pubkey_null_encrypt,
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.decrypt = pubkey_null_decrypt,
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.sign = pubkey_null_sign,
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.verify = pubkey_null_verify,
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.final = pubkey_null_final,
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};
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