94 lines
3.0 KiB
C
94 lines
3.0 KiB
C
/**
|
|
* Copyright (2017) Baidu Inc. 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.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
/**
|
|
* File: lightduer_aes.h
|
|
* Auth: Leliang Zhang(zhangleliang@baidu.com)
|
|
* Desc: Provide the aes encryption(only CBC mode support now).
|
|
*/
|
|
|
|
#ifndef BAIDU_DUER_LIGHTDUER_AES_H
|
|
#define BAIDU_DUER_LIGHTDUER_AES_H
|
|
|
|
#include "lightduer_types.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
// aes context, real type depend on the implementation
|
|
typedef void *duer_aes_context;
|
|
|
|
// get the initialized aes context
|
|
duer_aes_context duer_aes_context_init(void);
|
|
|
|
/*
|
|
*set the key used in the encryption and decryption
|
|
*@param ctx, got from duer_aes_context_init
|
|
*@param key, the key will be used,
|
|
*@param keybits, the length of @key in bits, should be one of 128, 192, 256
|
|
*@return, DUER_OK on success, or other error code
|
|
*/
|
|
int duer_aes_setkey(duer_aes_context ctx,
|
|
const unsigned char *key,
|
|
unsigned int keybits);
|
|
|
|
/*
|
|
*set the iv used in the encryption and decryption
|
|
*@param ctx, got from duer_aes_context_init
|
|
*@param iv, the iv will be used, it's 16 bytes length.
|
|
*@return, DUER_OK on success, or other error code
|
|
*/
|
|
int duer_aes_setiv(duer_aes_context ctx, unsigned char iv[16]);
|
|
|
|
/*
|
|
*encrypt the input info, use the key/iv from @duer_aes_setkey and @duer_aes_setiv
|
|
*@param ctx, got from duer_aes_context_init
|
|
*@param length, the length of the input, should be multiple of 16
|
|
*@param input, the content will be encrypted
|
|
*#param output, the encrypted content
|
|
*@return, DUER_OK on success, or other error code
|
|
*/
|
|
int duer_aes_cbc_encrypt(duer_aes_context ctx,
|
|
size_t length,
|
|
const unsigned char *input,
|
|
unsigned char *output);
|
|
|
|
/*
|
|
*decrypt the input info, use the key/iv from @duer_aes_setkey and @duer_aes_setiv
|
|
*@param ctx, got from duer_aes_context_init
|
|
*@param length, the length of the input, should be multiple of 16
|
|
*@param input, the content will be decrypted
|
|
*#param output, the decrypted content
|
|
*@return, DUER_OK on success, or other error code
|
|
*/
|
|
int duer_aes_cbc_decrypt(duer_aes_context ctx,
|
|
size_t length,
|
|
const unsigned char *input,
|
|
unsigned char *output);
|
|
|
|
/*
|
|
*destroy the context
|
|
*@param ctx, got from duer_aes_context_init
|
|
*@return, DUER_OK on success, or other error code
|
|
*/
|
|
int duer_aes_context_destroy(duer_aes_context ctx);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif/*BAIDU_DUER_LIGHTDUER_AES_H*/
|