180 lines
4.0 KiB
C
Executable File
180 lines
4.0 KiB
C
Executable File
/*
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* (C) Copyright 2007-2013
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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* Jerry Wang <wangflord@allwinnertech.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include "twofish/twofish.h"
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#include "encrypt.h"
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#define CODE_KEY_LEN 32
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HTF handle = NULL;
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/*
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***************************************************************
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* get_code_key
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*
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* Description:
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* 获得密匙
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* Parameters:
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* void
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* Return value:
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* 0 : success
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* !0 : fail
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* History:
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*
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***************************************************************
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*/
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int get_code_key(uint * key_new, uint keylen)
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{
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uint i = 0;
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//暂时用明文的key，等找到好的算法以后再替换
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// _mem_cpy(key_new, key_old, keylen);
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key_new[0] = 5;
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key_new[1] = 4;
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for(i = 2; i < keylen; i++){
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key_new[i] = key_new[i-1] + key_new[i-2];
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}
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return 0;
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}
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/*
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***************************************************************
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* init_code
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*
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* Description:
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* 加密算法初始化
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* Parameters:
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* void
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* Return value:
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* 0 : success
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* !0 : fail
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* History:
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*
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***************************************************************
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*/
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int init_code(void)
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{
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int ret = 0;
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uint key_new[CODE_KEY_LEN];
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memset((void *)key_new, 0, CODE_KEY_LEN * sizeof(uint));
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ret = get_code_key(key_new, CODE_KEY_LEN);
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if(ret != 0){
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printf("ERR: init_code, get_code_key failed\n");
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return -1;
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}
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handle = TFInitial(key_new, CODE_KEY_LEN);
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if(handle == NULL)
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{
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printf("ERR: init_code, TFInitial failed\n");
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return -1;
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}
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return 0;
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}
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/*
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***************************************************************
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* encode
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*
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* Description:
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* 加密
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* Parameters:
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* ibuf : input. originality buffer
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* obuf : output. cryptograph buffer
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* len : input. buffer lenght
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* Return value:
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* 0 : success
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* !0 : fail
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* History:
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*
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***************************************************************
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*/
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uint encode(void * ibuf, void * obuf, uint len)
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{
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printf("ERR: encode not support\n");
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return 0;
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}
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/*
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***************************************************************
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* decode
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*
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* Description:
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* 解密
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* Parameters:
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* ibuf : input. originality buffer
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* obuf : output. cryptograph buffer
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* len : input. buffer lenght
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* Return value:
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* 0 : success
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* !0 : fail
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* History:
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*
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***************************************************************
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*/
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uint decode(void * ibuf, void * obuf, uint len)
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{
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//return TFDecode(handle, ibuf, len, obuf);
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TFDecode(handle, ibuf, len, obuf);
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return (uint)obuf;
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}
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//int decode(uint src_buf, uint dest_buf, uint len, uint *buf_addr)
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//{
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// void *ibuf, *obuf;
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//
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// ibuf = (void *)src_buf;
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// obuf = (void *)dest_buf;
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//
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// TFDecode(handle, ibuf, len, obuf);
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// *buf_addr = dest_buf;
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//
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// return 0;
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//}
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/*
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***************************************************************
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* exit_code
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*
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* Description:
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* 关闭
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* Parameters:
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* void
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* Return value:
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* 0 : success
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* !0 : fail
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* History:
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*
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***************************************************************
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*/
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int exit_code(void)
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{
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return 0;
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}
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