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- /*
- * Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the License); you may
- * not use this file except in compliance with the License.
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- */
- #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
- #define BLOCK_CIPHER_BLOCK_SIZE 16
- #define BLOCK_CIPHER_MIN_KEY_SIZE 16
- #define BLOCK_CIPHER_MAX_KEY_SIZE 32
- 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 {
- int oid;
- 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;
- };
- const BLOCK_CIPHER *BLOCK_CIPHER_sm4(void);
- const BLOCK_CIPHER *BLOCK_CIPHER_aes128(void);
- const BLOCK_CIPHER *block_cipher_from_name(const char *name);
- const char *block_cipher_name(const BLOCK_CIPHER *cipher);
- 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);
- #ifdef __cplusplus
- }
- #endif
- #endif
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