Files
GmSSL/include/gmssl/block_cipher.h
2021-07-28 16:32:10 +08:00

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3.7 KiB
C

/*
* Copyright (c) 2014 - 2021 The GmSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the GmSSL Project.
* (http://gmssl.org/)"
*
* 4. The name "GmSSL Project" must not be used to endorse or promote
* products derived from this software without prior written
* permission. For written permission, please contact
* guanzhi1980@gmail.com.
*
* 5. Products derived from this software may not be called "GmSSL"
* nor may "GmSSL" appear in their names without prior written
* permission of the GmSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the GmSSL Project
* (http://gmssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE GmSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef GMSSL_BLOCK_CIPHER_H
#define GMSSL_BLOCK_CIPHER_H
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <gmssl/aes.h>
#include <gmssl/sm4.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct BLOCK_CIPHER BLOCK_CIPHER;
typedef struct BLOCK_CIPHER_KEY BLOCK_CIPHER_KEY;
struct BLOCK_CIPHER_KEY {
union {
SM4_KEY sm4_key;
AES_KEY aes_key;
} u;
const BLOCK_CIPHER *cipher;
};
typedef void (*block_cipher_set_encrypt_key_func)(BLOCK_CIPHER_KEY *key, const uint8_t *raw_key);
typedef void (*block_cipher_set_decrypt_key_func)(BLOCK_CIPHER_KEY *key, const uint8_t *raw_key);
typedef void (*block_cipher_encrypt_func)(const BLOCK_CIPHER_KEY *key, const uint8_t *in, uint8_t *out);
typedef void (*block_cipher_decrypt_func)(const BLOCK_CIPHER_KEY *key, const uint8_t *in, uint8_t *out);
struct BLOCK_CIPHER {
size_t key_size;
size_t block_size;
block_cipher_set_encrypt_key_func set_encrypt_key;
block_cipher_set_decrypt_key_func set_decrypt_key;
block_cipher_encrypt_func encrypt;
block_cipher_decrypt_func decrypt;
};
int block_cipher_set_encrypt_key(BLOCK_CIPHER_KEY *key, const BLOCK_CIPHER *cipher, const uint8_t *raw_key);
int block_cipher_set_decrypt_key(BLOCK_CIPHER_KEY *key, const BLOCK_CIPHER *cipher, const uint8_t *raw_key);
int block_cipher_encrypt(const BLOCK_CIPHER_KEY *key, const uint8_t *in, uint8_t *out);
int block_cipher_decrypt(const BLOCK_CIPHER_KEY *key, const uint8_t *in, uint8_t *out);
const BLOCK_CIPHER *BLOCK_CIPHER_sm4(void);
const BLOCK_CIPHER *BLOCK_CIPHER_aes128(void);
#ifdef __cplusplus
}
#endif
#endif