Java c++通过des加解密

需要用java加密通信参数，发送到c++服务端解密回去，为了避免加密之后不一样，网上找了很多，最后找了这份源码，在此感谢作者的无私奉献


1、Java des加密代码：


/************************************************ 
DES 算法
@author:zhang ming 
Last Modified:10,Nov,2004
*************************************************/


import java.lang.reflect.*;


import sun.misc.BASE64Encoder;


public class des_zm {
/*
* static final是表示了只读，切能在同一个进程空间内的多个 Instance间共享
*/
private static String strDefaultKey = "testpass";
public String digestHexStr;
// 28
static final int pc_1_cp[] = { 57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42,
    34, 26, 18, 10, 2, 59, 51, 43, 35, 27, 19, 11, 3, 60, 52, 44, 36 };
// 28
static final int pc_1_dp[] = { 63, 55, 47, 39, 31, 23, 15, 7, 62, 54, 46,
    38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21, 13, 5, 28, 20, 12, 4 };
// 48
static final int pc_2p[] = { 14, 17, 11, 24, 1, 5, 3, 28, 15, 6, 21, 10,
    23, 19, 12, 4, 26, 8, 16, 7, 27, 20, 13, 2, 41, 52, 31, 37, 47, 55,
    30, 40, 51, 45, 33, 48, 44, 49, 39, 56, 34, 53, 46, 42, 50, 36, 29,
    32 };
// 16
static final int ls_countp[] = { 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2,
    2, 1 };
// 64
static final int iip_tab_p[] = { 58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44,
    36, 28, 20, 12, 4, 62, 54, 46, 38, 30, 22, 14, 6, 64, 56, 48, 40,
    32, 24, 16, 8, 57, 49, 41, 33, 25, 17, 9, 1, 59, 51, 43, 35, 27,
    19, 11, 3, 61, 53, 45, 37, 29, 21, 13, 5, 63, 55, 47, 39, 31, 23,
    15, 7 };
// 64
static final int _iip_tab_p[] = { 40, 8, 48, 16, 56, 24, 64, 32, 39, 7, 47,
    15, 55, 23, 63, 31, 38, 6, 46, 14, 54, 22, 62, 30, 37, 5, 45, 13,
    53, 21, 61, 29, 36, 4, 44, 12, 52, 20, 60, 28, 35, 3, 43, 11, 51,
    19, 59, 27, 34, 2, 42, 10, 50, 18, 58, 26, 33, 1, 41, 9, 49, 17,
    57, 25 };
// 48
static final int e_r_p[] = { 32, 1, 2, 3, 4, 5, 4, 5, 6, 7, 8, 9, 8, 9, 10,
    11, 12, 13, 12, 13, 14, 15, 16, 17, 16, 17, 18, 19, 20, 21, 20, 21,
    22, 23, 24, 25, 24, 25, 26, 27, 28, 29, 28, 29, 30, 31, 32, 1 };
// 32
static final int local_PP[] = { 16, 7, 20, 21, 29, 12, 28, 17, 1, 15, 23,
    26, 5, 18, 31, 10, 2, 8, 24, 14, 32, 27, 3, 9, 19, 13, 30, 6, 22,
    11, 4, 25 };
// [8][4][16]
static final int ccom_SSS_p[][][] = {
    { { 14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7 },
      { 0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8 },
      { 4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0 },
      { 15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13 } },


    { { 15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10 },
      { 3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5 },
      { 0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15 },
      { 13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9 } },


    { { 10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8 },
      { 13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1 },
      { 13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7 },
      { 1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12 } },


    { { 7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15 },
      { 13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9 },
      { 10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4 },
      { 3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14 } }, /*
                     * err
                     * on
                     */


    { { 2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9 },
      { 14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6 }, /*
                     * err
                     * on
                     */
      { 4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14 },
      { 11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3 } },


    { { 12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11 },
      { 10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8 },
      { 9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6 },
      { 4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13 } },


    { { 4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1 },
      { 13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6 },
      { 1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2 },
      { 6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12 } },


    { { 13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7 },
      { 1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2 },
      { 7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8 },
      { 2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11 } } };


byte[][] C = new byte[17][28];
byte[][] D = new byte[17][28];
byte[][] K = new byte[17][48];


public des_zm() {
   return;
}


/*
* iu2b把int转换成byte
*/
private static byte iu2b(int input) {
   byte output1;
   output1 = (byte) (input & 0xff);
   return output1;
}


/*
* b2iu把byte按照不考虑正负号的原则的＂升位＂成int程序， 因为java没有unsigned运算
*/
private static int b2iu(byte b) {
   return b < 0 ? b & 0x7F + 128 : b;
}


/*
* byteHEX()，用来把一个byte类型的数转换成十六进制的ASCII表示，
* 因为java中的byte的toString无法实现这一点，我们又没有C语言中的 sprintf(outbuf,"%02X",ib)
*/
public static String byteHEX(byte ib) {
   char[] Digit = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A',
     'B', 'C', 'D', 'E', 'F' };
   char[] ob = new char[2];
   ob[0] = Digit[(ib >>> 4) & 0X0F];
   ob[1] = Digit[ib & 0X0F];
   String s = new String(ob);
   return s;
}


/*
* desMemcpy是一个内部使用的byte数组的块拷贝函数， 从input的inpos开始把len长度的
* 字节拷贝到output的outpos位置开始
*/
private void desMemcpy(byte[] output, byte[] input, int outpos, int inpos,
    int len) {
   int i;
   for (i = 0; i < len; i++)
    output[outpos + i] = input[inpos + i];
}


private void Fexpand0(byte[] in, byte[] out) {
   int divide;
   int i, j;
   byte temp1;


   for (i = 0; i < 8; i++) {
    divide = 7;
    for (j = 0; j < 8; j++) {
     temp1 = in[i];
     out[8 * i + j] = iu2b((b2iu(temp1) >>> divide) & 1);
     divide--;
    }
   }
}


private void FLS(byte[] bits, byte[] buffer, int count) {
   int i, j;
   for (i = 0; i < 28; i++) {
    buffer[i] = bits[(i + count) % 28];
   }
}


private void Fson(byte[] cc, byte[] dd, byte[] kk) {
   int i, j;
   byte[] buffer = new byte[56];
   for (i = 0; i < 28; i++)
    buffer[i] = cc[i];


   for (i = 28; i < 56; i++)
    buffer[i] = dd[i - 28];


   for (i = 0; i < 48; i++)
    kk[i] = buffer[pc_2p[i] - 1];
}


private void Fsetkeystar(byte[] bits) {
   int i, j;


   for (i = 0; i < 28; i++)
    C[0][i] = bits[pc_1_cp[i] - 1];
   for (i = 0; i < 28; i++)
    D[0][i] = bits[pc_1_dp[i] - 1];
   for (j = 0; j < 16; j++) {
    FLS(C[j], C[j + 1], ls_countp[j]);
    FLS(D[j], D[j + 1], ls_countp[j]);
    Fson(C[j + 1], D[j + 1], K[j + 1]);
   }
}


private void Fiip(byte[] text, byte[] ll, byte[] rr) {
   int i, j;
   byte[] buffer = new byte[64];
   byte[] tmp = new byte[64];
   Fexpand0(text, buffer);


   for (i = 0; i < 32; i++)
    ll[i] = buffer[iip_tab_p[i] - 1];


   for (i = 0; i < 32; i++)
    rr[i] = buffer[iip_tab_p[i + 32] - 1];
}


private void Fs_box(byte[] aa, byte[] bb) {
   int i, j, k, m;
   int y, z;
   byte[] ss = new byte[8];
   m = 0;
   for (i = 0; i < 8; i++) {
    j = 6 * i;
    y = b2iu(aa[j]) * 2 + b2iu(aa[j + 5]);
    z = b2iu(aa[j + 1]) * 8 + b2iu(aa[j + 2]) * 4 + b2iu(aa[j + 3]) * 2
      + b2iu(aa[j + 4]);
    ss[i] = iu2b(ccom_SSS_p[i][y][z]);
    y = 3;
    for (k = 0; k < 4; k++) {
     bb[m++] = iu2b((b2iu(ss[i]) >>> y) & 1);
     y--;
    }


   }
}


private void FF(int n, byte[] ll, byte[] rr, byte[] LL, byte[] RR) {
   int i, j;
   byte[] buffer = new byte[64], tmp = new byte[64];
   for (i = 0; i < 48; i++)
    buffer[i] = rr[e_r_p[i] - 1];
   for (i = 0; i < 48; i++)
    buffer[i] = iu2b((b2iu(buffer[i]) + b2iu(K[n][i])) & 1);


   Fs_box(buffer, tmp);


   for (i = 0; i < 32; i++)
    buffer[i] = tmp[local_PP[i] - 1];


   for (i = 0; i < 32; i++)
    RR[i] = iu2b((b2iu(buffer[i]) + b2iu(ll[i])) & 1);


   for (i = 0; i < 32; i++)
    LL[i] = rr[i];
}


private void _Fiip(byte[] text, byte[] ll, byte[] rr) {
   int i, j;
   byte[] tmp = new byte[64];
   for (i = 0; i < 32; i++)
    tmp[i] = ll[i];
   for (i = 32; i < 64; i++)
    tmp[i] = rr[i - 32];
   for (i = 0; i < 64; i++)
    text[i] = tmp[_iip_tab_p[i] - 1];
}


private void Fcompress016(byte[] out, byte[] in) {
   int times;
   int i, j;


   for (i = 0; i < 16; i++) {
    times = 3;
    in[i] = '0';
    for (j = 0; j < 4; j++) {
     in[i] = iu2b(b2iu(in[i]) + (b2iu(out[i * 16 + j]) << times));
     times--;
    }
   }
}


void Fcompress0(byte[] out, byte[] in) {
   int times;
   int i, j;


   for (i = 0; i < 8; i++) {
    times = 7;
    in[i] = 0;
    for (j = 0; j < 8; j++) {
     in[i] = iu2b(b2iu(in[i]) + (b2iu(out[i * 8 + j]) << times));
     times--;
    }
   }
}


private void Fencrypt0(byte[] text, byte[] mtext) {
   byte[] ll = new byte[64], rr = new byte[64], LL = new byte[64], RR = new byte[64];
   byte[] tmp = new byte[64];
   int i, j;
   Fiip(text, ll, rr);


   for (i = 1; i < 17; i++) {
    FF(i, ll, rr, LL, RR);
    for (j = 0; j < 32; j++) {
     ll[j] = LL[j];
     rr[j] = RR[j];
    }
   }


   _Fiip(tmp, rr, ll);


   Fcompress0(tmp, mtext);
}


private void FDES(byte[] key, byte[] text, byte[] mtext) {
   byte[] tmp = new byte[64];
   Fexpand0(key, tmp);
   Fsetkeystar(tmp);
   Fencrypt0(text, mtext);
}


/* 加密 */
public int ENCRYPT(byte[] key, byte[] s, byte[] d, int len) {
   int i, j;
   byte[] cData = new byte[8];
   byte[] cEncryptData = new byte[8];
   for (i = 0; i < len; i += 8) {
    if ((i + 8) > len) {
     desMemcpy(cData, s, 0, i, len - i);
     for (j = len - i; j < 8; j++)
      cData[j] = 0;
    } else
     desMemcpy(cData, s, 0, i, 8);
    FDES(key, cData, cEncryptData);
    desMemcpy(d, cEncryptData, i, 0, 8);


   }
   return i;
}


private void Fdiscrypt0(byte[] mtext, byte[] text) {
   byte[] ll = new byte[64], rr = new byte[64], LL = new byte[64], RR = new byte[64];
   byte[] tmp = new byte[64];
   int i, j;
   Fiip(mtext, ll, rr);


   for (i = 16; i > 0; i--) {
    FF(i, ll, rr, LL, RR);
    for (j = 0; j < 32; j++) {
     ll[j] = LL[j];
     rr[j] = RR[j];
    }
   }


   _Fiip(tmp, rr, ll);


   Fcompress0(tmp, text);
}


/***************************************************************************
* function: DES parameter: u_char * key ; key for encrypt u_char * mtext ;
* encipher data u_char * text ; plain data return: none
**************************************************************************/
private void _FDES(byte[] key, byte[] mtext, byte[] text) {
   byte[] tmp = new byte[64];
   Fexpand0(key, tmp);
   Fsetkeystar(tmp);
   Fdiscrypt0(mtext, text);
}


/* 解密 */
public int DECRYPT(byte[] key, byte[] s, byte[] d, int len) {
   int i;
   byte[] cData = new byte[8];
   byte[] cEncryptData = new byte[8];
   for (i = 0; i < len; i += 8) {
    desMemcpy(cEncryptData, d, 0, i, 8);
    _FDES(key, cEncryptData, cData);
    desMemcpy(s, cData, i, 0, 8);
   }
   return i;
}


public static byte[] hexStr2ByteArr(String strIn) {
   byte[] arrB = strIn.getBytes();
   int iLen = arrB.length;


   // 两个字符表示一个字节，所以字节数组长度是字符串长度除以2
   byte[] arrOut = new byte[iLen / 2];
   for (int i = 0; i < iLen; i = i + 2) {
    String strTmp = new String(arrB, i, 2);
    arrOut[i / 2] = (byte) Integer.parseInt(strTmp, 16);
   }
   return arrOut;
}


public static void main(String args[]) {


   des_zm m = new des_zm();
   String s = "111111";
   String miwen = m.Encode(s);
   System.out.println("密文:[" + miwen + "]");


   String minwen = m.Decode(miwen).toString();
   System.out.println("明文:[" + minwen + "]");
}


public String Encode(String str) {
   int i1;


   String digestHexStr;
   byte[] byte2 = new byte[3000];
   byte[] byte1 = str.getBytes();


   i1 = ENCRYPT(strDefaultKey.getBytes(), byte1, byte2, byte1.length);
   digestHexStr = "";
   for (int i = 0; i < i1; i++) {
    digestHexStr += byteHEX(byte2[i]);
   }


   return digestHexStr;
}


public String Decode(String str) {
   int i2;


   byte[] byteMingW = new byte[3000]; // 密文
   byte[] byteMiW = new byte[3000];


   des_zm m = new des_zm();
   byteMiW = m.hexStr2ByteArr(str);


   i2 = m.DECRYPT(m.strDefaultKey.getBytes(), byteMingW, byteMiW,
     byteMiW.length);


   BASE64Encoder base64encoder = new BASE64Encoder();
   return new String(byteMingW, 0, i2);
}


}


2、C++ des加密代码：


// testdes_.cpp : 定义控制台应用程序的入口点。
//


#include "stdafx.h"


#define KEY "testtest"


#define u_char unsigned char
#define _u8 unsigned char
#define _u16 unsigned short
#define _u32 unsigned int




void FDES(u_char *key,u_char *text,u_char *mtext);
void _FDES(u_char *key,u_char *mtext,u_char *text);
void Fencrypt0(u_char *text,u_char *mtext);
void Fdiscrypt0(u_char *mtext,u_char *text);
void Fexpand0(u_char *in,u_char *out);
void Fcompress0(u_char *out,u_char *in);
void Fcompress016(u_char *out,u_char *in);
void Fsetkeystar(u_char bits[64]);
void FLS(u_char *bits,u_char *buffer,int count);
void Fson(u_char *cc,u_char *dd,u_char *kk);
void Fiip(u_char *text,u_char *ll,u_char *rr);
void _Fiip(u_char *text,u_char *ll,u_char *rr);
void FF(int n,u_char *ll,u_char *rr,u_char *LL,u_char *RR);
void Fs_box(u_char *aa,u_char *bb);


u_char C[17][28],D[17][28],K[17][48];


int DECRYPT( u_char *key, unsigned char *s,unsigned char *d, unsigned short len );
int ENCRYPT( u_char *key, unsigned char *s,unsigned char *d,unsigned short len );


int _tmain(int argc, _TCHAR* argv[])
{
printf("len=[%d]\n",3);


int len,i,n;
char str[100]; //明文
char mstr[100]; //密文


memset(str,0,sizeof(str)); //增加
strcpy(str,"111111");


printf("明文=[%s]\n",str);
printf("密钥=[%s]\n",KEY);


len=strlen(str);


//加密
i=ENCRYPT( (unsigned char *)KEY, (unsigned char *)str,(unsigned char *)mstr,len );


printf("len=[%d]\n",len);
printf("密文=[\n");
for (n = 0; n < i; n++)
{
   printf("%02X", mstr[n] & 0x00FF ); //增加
}
printf("]\n");
printf("i=[%d]\n",i);


memset(str,0,sizeof(str));


//解密
i=DECRYPT((unsigned char *) KEY, (unsigned char *)str,(unsigned char *)mstr, len );
printf("len=[%d]\n",len);
printf("明文=[%s]\n",str);
printf("i=[%d]\n",i);


}


/*****************************************************************************
* function: DES
* parameter: u_char * key ; key for encrypt
*   u_char * text ; plain text 
*   u_char * mtext ; encipher result
* return: none
*****************************************************************************/
void FDES(u_char *key,u_char *text,u_char *mtext)
{
u_char tmp[64];
Fexpand0(key,tmp);
Fsetkeystar(tmp);
Fencrypt0(text,mtext);
}


/*****************************************************************************
* function: DES
* parameter: u_char * key ; key for encrypt
*   u_char * mtext ; encipher data 
*   u_char * text ; plain data
* return: none
*****************************************************************************/
void _FDES(u_char *key,u_char *mtext,u_char *text)
{
u_char tmp[64];
Fexpand0(key,tmp);
Fsetkeystar(tmp);
Fdiscrypt0(mtext,text);
}


void Fencrypt0(u_char *text,u_char *mtext)
{
u_char ll[64],rr[64],LL[64],RR[64];
u_char tmp[64];
int i,j;
Fiip(text,ll,rr);


for (i=1;i<17;i++)
{
   FF(i,ll,rr,LL,RR);
   for (j=0;j<32;j++)
   {
    ll[j]=LL[j];
    rr[j]=RR[j];
   }
}


_Fiip(tmp,rr,ll);


Fcompress0(tmp,mtext);
}




void Fdiscrypt0(u_char *mtext,u_char *text)
{
u_char ll[64],rr[64],LL[64],RR[64];
u_char tmp[64];
int i,j;
Fiip(mtext,ll,rr);


for (i=16;i>0;i--)
{
   FF(i,ll,rr,LL,RR);
   for (j=0;j<32;j++)
   {
    ll[j]=LL[j];
    rr[j]=RR[j];
   }
}


_Fiip(tmp,rr,ll);


Fcompress0(tmp,text);
}




void Fexpand0(u_char *in,u_char *out)
{
int divide;
int i,j;


for (i=0;i<8;i++)
{
   divide=0x80;
   for (j=0;j<8;j++)
   {
    *out++=(in[i]/divide)&1;
    divide/=2;
   }
}
}




void Fcompress0(u_char *out,u_char *in)
{
int times;
int i,j;


for (i=0;i<8;i++)
{
   times=0x80;
   in[i]=0;
   for (j=0;j<8;j++)
   {
    in[i]+=(*out++)*times;
    times/=2;
   }
}
}
void Fcompress016(u_char *out,u_char *in)
{
int times;
int i,j;


for (i=0;i<16;i++)
{
   times=0x8;
   in[i]='0';
   for (j=0;j<4;j++)
   {
    in[i]+=(*out++)*times;
    times/=2;
   }
}
}


int pc_1_cp[28]={
57,49,41,33,25,17,9
,1,58,50,42,34,26,18
,10,2,59,51,43,35,27
,19,11,3,60,52,44,36};
int pc_1_dp[28]={
63,55,47,39,31,23,15
,7,62,54,46,38,30,22
,14,6,61,53,45,37,29
,21,13,5,28,20,12,4};
int pc_2p[48]={
14,17,11,24,1,5,
3,28,15,6,21,10,
23,19,12,4,26,8,
16,7,27,20,13,2,
41,52,31,37,47,55,
30,40,51,45,33,48,
44,49,39,56,34,53,
46,42,50,36,29,32};


int ls_countp[16]={
1,1,2,2,2,2,2,2,1,2,2,2,2,2,2,1};


void Fsetkeystar(u_char bits[64])
{
int i,j;


for (i=0;i<28;i++)
   C[0][i]=bits[pc_1_cp[i]-1];
for (i=0;i<28;i++)
   D[0][i]=bits[pc_1_dp[i]-1];
for (j=0;j<16;j++)
{
   FLS(C[j],C[j+1],ls_countp[j]);
   FLS(D[j],D[j+1],ls_countp[j]);
   Fson(C[j+1],D[j+1],K[j+1]);
}
}




void FLS(u_char *bits,u_char *buffer,int count)
{
int i,j;
for (i=0;i<28;i++)
{
   buffer[i]=bits[(i+count)%28];
}
}


void Fson(u_char *cc,u_char *dd,u_char *kk)
{
int i,j;
u_char buffer[56];
for (i=0;i<28;i++)
   buffer[i]=*cc++;


for (i=28;i<56;i++)
   buffer[i]=*dd++;


for (i=0;i<48;i++)
   *kk++=buffer[pc_2p[i]-1];
}


int iip_tab_p[64]={
58,50,42,34,26,18,10,2,
60,52,44,36,28,20,12,4,
62,54,46,38,30,22,14,6,
64,56,48,40,32,24,16,8,
57,49,41,33,25,17,9,1,
59,51,43,35,27,19,11,3,
61,53,45,37,29,21,13,5,
63,55,47,39,31,23,15,7};
int _iip_tab_p[64]={
40,8,48,16,56,24,64,32,
39,7,47,15,55,23,63,31,
38,6,46,14,54,22,62,30,
37,5,45,13,53,21,61,29,
36,4,44,12,52,20,60,28,
35,3,43,11,51,19,59,27,
34,2,42,10,50,18,58,26,
33,1,41,9,49,17,57,25};


void Fiip(u_char *text,u_char *ll,u_char *rr)
{
int i,j;
u_char buffer[64];
u_char tmp[64];
Fexpand0(text,buffer);


for (i=0;i<32;i++)
   ll[i]=buffer[iip_tab_p[i]-1];


for (i=0;i<32;i++)
   rr[i]=buffer[iip_tab_p[i+32]-1];
}


void _Fiip(u_char *text,u_char *ll,u_char *rr)
{
int i,j;
u_char tmp[64];
for (i=0;i<32;i++)
   tmp[i]=ll[i];
for (i=32;i<64;i++)
   tmp[i]=rr[i-32];
for (i=0;i<64;i++)
   text[i]=tmp[_iip_tab_p[i]-1];
}




int e_r_p[48]={
32,1,2,3,4,5,4,5,6,7,8,9,
8,9,10,11,12,13,12,13,14,15,16,17,
16,17,18,19,20,21,20,21,22,23,24,25,
24,25,26,27,28,29,28,29,30,31,32,1};


int local_PP[32]={
16,7,20,21,29,12,28,17,
1,15,23,26,5,18,31,10,
2,8,24,14,32,27,3,9,
19,13,30,6,22,11,4,25};
int ccom_SSS_p[8][4][16]={
14,4,13,1,2,15,11,8,3,10,6,12,5,9,0,7,
0,15,7,4,14,2,13,1,10,6,12,11,9,5,3,8,/* err on */
4,1,14,8,13,6,2,11,15,12,9,7,3,10,5,0,
15,12,8,2,4,9,1,7,5,11,3,14,10,0,6,13,


15,1,8,14,6,11,3,4,9,7,2,13,12,0,5,10,
3,13,4,7,15,2,8,14,12,0,1,10,6,9,11,5,
0,14,7,11,10,4,13,1,5,8,12,6,9,3,2,15,
13,8,10,1,3,15,4,2,11,6,7,12,0,5,14,9,


10,0,9,14,6,3,15,5,1,13,12,7,11,4,2,8,
13,7,0,9,3,4,6,10,2,8,5,14,12,11,15,1,
13,6,4,9,8,15,3,0,11,1,2,12,5,10,14,7,
1,10,13,0,6,9,8,7,4,15,14,3,11,5,2,12,


7,13,14,3,0,6,9,10,1,2,8,5,11,12,4,15,
13,8,11,5,6,15,0,3,4,7,2,12,1,10,14,9,
10,6,9,0,12,11,7,13,15,1,3,14,5,2,8,4,
3,15,0,6,10,1,13,8,9,4,5,11,12,7,2,14, /* err on */


2,12,4,1,7,10,11,6,8,5,3,15,13,0,14,9,
14,11,2,12,4,7,13,1,5,0,15,10,3,9,8,6, /* err on */
4,2,1,11,10,13,7,8,15,9,12,5,6,3,0,14,
11,8,12,7,1,14,2,13,6,15,0,9,10,4,5,3,


12,1,10,15,9,2,6,8,0,13,3,4,14,7,5,11,
10,15,4,2,7,12,9,5,6,1,13,14,0,11,3,8,
9,14,15,5,2,8,12,3,7,0,4,10,1,13,11,6,
4,3,2,12,9,5,15,10,11,14,1,7,6,0,8,13,


4,11,2,14,15,0,8,13,3,12,9,7,5,10,6,1,
13,0,11,7,4,9,1,10,14,3,5,12,2,15,8,6,
1,4,11,13,12,3,7,14,10,15,6,8,0,5,9,2,
6,11,13,8,1,4,10,7,9,5,0,15,14,2,3,12,


13,2,8,4,6,15,11,1,10,9,3,14,5,0,12,7,
1,15,13,8,10,3,7,4,12,5,6,11,0,14,9,2,
7,11,4,1,9,12,14,2,0,6,10,13,15,3,5,8,
2,1,14,7,4,10,8,13,15,12,9,0,3,5,6,11};


void FF(int n,u_char *ll,u_char *rr,u_char *LL,u_char *RR)
{
int i,j;
u_char buffer[64],tmp[64];
for (i=0;i<48;i++)
   buffer[i]=rr[e_r_p[i]-1];
for (i=0;i<48;i++)
   buffer[i]=(buffer[i]+K[n][i])&1;


Fs_box(buffer,tmp);


for (i=0;i<32;i++)
   buffer[i]=tmp[local_PP[i]-1];


for (i=0;i<32;i++)
   RR[i]=(buffer[i]+ll[i])&1;


for (i=0;i<32;i++)
   LL[i]=rr[i];




}


void Fs_box(u_char *aa,u_char *bb)
{
int i,j,k,m;
int y,z;
u_char ss[8];
m=0;
for (i=0;i<8;i++)
{
   j=6*i;
   y=aa[j]*2+aa[j+5];
   z=aa[j+1]*8+aa[j+2]*4+aa[j+3]*2+aa[j+4];
   ss[i]=ccom_SSS_p[i][y][z];
   y=0x08;
   for (k=0;k<4;k++)
   {
    bb[m++]=(ss[i]/y)&1;
    y/=2;
   }


}
}




int ENCRYPT( u_char *key, _u8 *s,_u8 *d,_u16 len )
{
int i;


for(i=0;i<len;i+=8)FDES(key,s+i,d+i);
// return len;
return i;
}


/*解密*/
int DECRYPT( u_char *key, _u8 *s,_u8 *d, _u16 len )
{
int i;


for(i=0;i<len;i+=8)_FDES(key,d+i,s+i);
// return len;
return i;
}