forked from sangge/tpre-python
75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
/*
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* Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*/
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#ifndef GMSSL_BLOCK_CIPHER_H
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#define GMSSL_BLOCK_CIPHER_H
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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/aes.h>
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#include <gmssl/sm4.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define BLOCK_CIPHER_BLOCK_SIZE 16
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#define BLOCK_CIPHER_MIN_KEY_SIZE 16
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#define BLOCK_CIPHER_MAX_KEY_SIZE 32
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typedef struct BLOCK_CIPHER BLOCK_CIPHER;
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typedef struct BLOCK_CIPHER_KEY BLOCK_CIPHER_KEY;
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struct BLOCK_CIPHER_KEY {
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union {
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SM4_KEY sm4_key;
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AES_KEY aes_key;
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} u;
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const BLOCK_CIPHER *cipher;
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};
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typedef void (*block_cipher_set_encrypt_key_func)(BLOCK_CIPHER_KEY *key, const uint8_t *raw_key);
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typedef void (*block_cipher_set_decrypt_key_func)(BLOCK_CIPHER_KEY *key, const uint8_t *raw_key);
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typedef void (*block_cipher_encrypt_func)(const BLOCK_CIPHER_KEY *key, const uint8_t *in, uint8_t *out);
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typedef void (*block_cipher_decrypt_func)(const BLOCK_CIPHER_KEY *key, const uint8_t *in, uint8_t *out);
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struct BLOCK_CIPHER {
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int oid;
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size_t key_size;
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size_t block_size;
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block_cipher_set_encrypt_key_func set_encrypt_key;
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block_cipher_set_decrypt_key_func set_decrypt_key;
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block_cipher_encrypt_func encrypt;
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block_cipher_decrypt_func decrypt;
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};
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const BLOCK_CIPHER *BLOCK_CIPHER_sm4(void);
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const BLOCK_CIPHER *BLOCK_CIPHER_aes128(void);
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const BLOCK_CIPHER *block_cipher_from_name(const char *name);
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const char *block_cipher_name(const BLOCK_CIPHER *cipher);
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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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int block_cipher_set_decrypt_key(BLOCK_CIPHER_KEY *key, const BLOCK_CIPHER *cipher, const uint8_t *raw_key);
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int block_cipher_encrypt(const BLOCK_CIPHER_KEY *key, const uint8_t *in, uint8_t *out);
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int block_cipher_decrypt(const BLOCK_CIPHER_KEY *key, const uint8_t *in, uint8_t *out);
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#ifdef __cplusplus
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}
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#endif
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#endif
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