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122 lines
4.0 KiB
C
122 lines
4.0 KiB
C
/*
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* Copyright (c) 2014 - 2020 The GmSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the GmSSL Project.
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* (http://gmssl.org/)"
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*
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* 4. The name "GmSSL Project" must not be used to endorse or promote
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* products derived from this software without prior written
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* permission. For written permission, please contact
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* guanzhi1980@gmail.com.
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*
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* 5. Products derived from this software may not be called "GmSSL"
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* nor may "GmSSL" appear in their names without prior written
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* permission of the GmSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the GmSSL Project
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* (http://gmssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE GmSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <gmssl/oid.h>
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#include <gmssl/block_cipher.h>
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#include "endian.h"
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int block_cipher_set_encrypt_key(BLOCK_CIPHER_KEY *key, const BLOCK_CIPHER *cipher, const uint8_t *raw_key)
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{
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memset(key, 0, sizeof(BLOCK_CIPHER_KEY));
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cipher->set_encrypt_key(key, raw_key);
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key->cipher = cipher;
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return 1;
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}
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int block_cipher_set_decrypt_key(BLOCK_CIPHER_KEY *key, const BLOCK_CIPHER *cipher, const uint8_t *raw_key)
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{
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memset(key, 0, sizeof(BLOCK_CIPHER_KEY));
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cipher->set_decrypt_key(key, raw_key);
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key->cipher = cipher;
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return 1;
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}
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int block_cipher_encrypt(const BLOCK_CIPHER_KEY *key, const uint8_t *in, uint8_t *out)
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{
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key->cipher->encrypt(key, in, out);
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return 1;
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}
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int block_cipher_decrypt(const BLOCK_CIPHER_KEY *key, const uint8_t *in, uint8_t *out)
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{
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key->cipher->decrypt(key, in, out);
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return 1;
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}
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static const BLOCK_CIPHER sm4_block_cipher_object = {
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OID_sm4,
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SM4_KEY_SIZE,
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SM4_BLOCK_SIZE,
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(block_cipher_set_encrypt_key_func)sm4_set_encrypt_key,
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(block_cipher_set_decrypt_key_func)sm4_set_decrypt_key,
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(block_cipher_encrypt_func)sm4_encrypt,
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(block_cipher_decrypt_func)sm4_encrypt,
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};
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const BLOCK_CIPHER *BLOCK_CIPHER_sm4(void) {
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return &sm4_block_cipher_object;
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}
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static int aes128_set_encrypt_key(AES_KEY *aes_key, const uint8_t key[16]) {
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return aes_set_encrypt_key(aes_key, key, 16);
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}
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static int aes128_set_decrypt_key(AES_KEY *aes_key, const uint8_t key[16]) {
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return aes_set_decrypt_key(aes_key, key, 16);
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}
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static const BLOCK_CIPHER aes128_block_cipher_object = {
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OID_aes128,
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AES128_KEY_SIZE,
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AES_BLOCK_SIZE,
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(block_cipher_set_encrypt_key_func)aes128_set_encrypt_key,
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(block_cipher_set_decrypt_key_func)aes128_set_decrypt_key,
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(block_cipher_encrypt_func)aes_encrypt,
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(block_cipher_decrypt_func)aes_encrypt,
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};
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const BLOCK_CIPHER *BLOCK_CIPHER_aes128(void) {
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return &aes128_block_cipher_object;
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}
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