求助：ruhe 进行xml文件的加密

无法实现，XML本身就是文本，除非你是要对文本加密

通常加密都是针对二进制的，变通的方法: 加密 Base64编码
文本内容 -----> 加密后的二进制 -----------> 文本逆向过程：
Base64解码解密
加密后的文本 ----------> 加密后的二进制 ------> 原始内容根据你的情况决定对整个 xml一次加密还是针对某个结点的值进行加密，重点是使用 Base64 编码和解码实现二进制数据在 xml 中的存储

同意3楼，先把你的xml加密之后，用base64转成文本，传输
接收到以后，base64解码成二进制，解密成xml给你base64的加密算法和DES的加密算法吧，我正在用的，代码没有问题

//base64.h  #ifndef   _BASE64ENC_H
  #define   _BASE64ENC_H

  int encode64(const   char   *_in,   unsigned   inlen,
                        char   *_out,   unsigned   outmax,   unsigned   *outlen);
  int decode64(const   char   *in,   unsigned   inlen,   char   *out,   unsigned   *outlen);

  #endif //base64.cpp#include "base64.h" #define OK (0)
#define FAIL (-1)
#define BUFOVER (-2)

#define CHAR64(c) (((c) < 0 || (c) > 127) ? -1 : index_64[(c)]) static char basis_64[] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????";

static char index_64[128] = {
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
-1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1
}; int encode64(const char *_in, unsigned inlen, char *_out, unsigned outmax, unsigned *outlen)
{
const unsigned char *in = (const unsigned char *) _in;
unsigned char *out = (unsigned char *) _out;
unsigned char oval;
char *blah;
unsigned olen;

olen = (inlen + 2) / 3 * 4;
if (outlen)
*outlen = olen;
if (outmax < olen)
return BUFOVER;

blah = (char *) out;
while (inlen >= 3)
{
*out++ = basis_64[in[0] >> 2];
*out++ = basis_64[((in[0] << 4) & 0x30) | (in[1] >> 4)];
*out++ = basis_64[((in[1] << 2) & 0x3c) | (in[2] >> 6)];
*out++ = basis_64[in[2] & 0x3f];
in += 3;
inlen -= 3;
}
if (inlen > 0)
{
*out++ = basis_64[in[0] >> 2];
oval = (in[0] << 4) & 0x30;
if (inlen > 1)
oval |= in[1] >> 4; *out++ = basis_64[oval];
*out++ = (inlen < 2) ? '=' : basis_64[(in[1] << 2) & 0x3c];
*out++ = '=';
}

if (olen < outmax)
*out = '\0';

return OK;

}

int decode64(const char *in, unsigned inlen, char *out, unsigned *outlen)
{

unsigned len = 0, lup;
int c1, c2, c3, c4;

if (in[0] == '+' && in[1] == ' ')
in += 2;

if (*in == '\0')
return FAIL;

for (lup = 0; lup < inlen / 4; lup++)
{
c1 = in[0];
if (CHAR64(c1) == -1)
return FAIL;
c2 = in[1];
if (CHAR64(c2) == -1)
return FAIL;
c3 = in[2];
if (c3 != '=' && CHAR64(c3) == -1)
return FAIL;
c4 = in[3];
if (c4 != '=' && CHAR64(c4) == -1)
return FAIL;
in += 4;
*out++ = (CHAR64(c1) << 2) | (CHAR64(c2) >> 4);
++len;
if (c3 != '=')
{
*out++ = ((CHAR64(c2) << 4) & 0xf0) | (CHAR64(c3) >> 2);
++len;
if (c4 != '=')
{
*out++ = ((CHAR64(c3) << 6) & 0xc0) | CHAR64(c4);
++len;
}
}
}

*out = 0;
*outlen = len;

return OK;
}

//DesCoder.h#ifndef   _DES_H__
#define   _DES_H__#ifndef   ENCRYPT
#define   ENCRYPT  0         /* DES 方向 */
#define   DECRYPT  1
#endif#ifndef   STAND
#define   STAND    0         /* MAC 标准 */
#define   BPI      1
#endif//#define   MAINKEY     "FDC92F6803DB16F1"void encrypt0(unsigned char *text, unsigned char *mtext);
void discrypt0(unsigned char *mtext, unsigned char *text);
void expand0(unsigned char *in, char *out);
void compress0(unsigned char *out, unsigned char *in);
void compress016(unsigned char *out, unsigned char *in);void setkeystar(unsigned char *bits);
void LS(char *bits, char *buffer, int count);
void son(char *cc, char *dd, char *kk);void ip(unsigned char *text, unsigned char *ll, unsigned char *rr);
void _ip(unsigned char *text, unsigned char *ll, unsigned char *rr);void FF(int n, char *ll, char *rr, char *LL, char *RR);
void s_box(char *aa, char *bb);/*
       DES加密解密程序
       参数:  source --- 源(8字节16进制)
              dest   --- 目标(8字节16进制)
              key    --- KEY值(8字节16进制)
              flag   --- ENCRYPT 加密
                         DECRYPT 解密
*/
void WINAPI Des(unsigned char *source, unsigned char *dest,
unsigned char *key, unsigned char flag);void WINAPI DesMac(unsigned char *source, int iLen,
unsigned char *dest, unsigned char *key);
void WINAPI Do_XOR(unsigned char *dest, unsigned char *source, int size);
void WINAPI HEX_2_DSP(unsigned char *hex, unsigned char *dsp, int count);
void WINAPI DSP_2_HEX(unsigned char *dsp, unsigned char *hex, int count);
#endif

//DesCoder.cpp#include "stdafx.h"
#include "DesCoder.h"
#include <string.h>static unsigned char C[17][28],D[17][28],K[17][48],c,ch1;
void WINAPI GetDesKey(unsigned char *pbyKey, int n)
{
memset(pbyKey, 0, 8);
for(int i=0; i<n; i++)
{
Des(pbyKey, pbyKey, pbyKey, 'E');
}
}
void WINAPI DesMac(unsigned char *source, int iLen, unsigned char *dest,
            unsigned char *key)
{
    unsigned char strXOR[8], strTemp[8];
    int i, iCount=iLen/8, iRemain=iLen%8;
    memset(strXOR, 0, sizeof(strXOR));
    for(i=0; i<iCount; i++)
        Do_XOR(strXOR, source+8*i, 8);
    if (iRemain)
    {
        memset(strTemp, 0, 8);
        memcpy(strTemp, source+8*iCount, iRemain);
        Do_XOR(strXOR, strTemp, 8);
    }
    Des(strXOR, dest, key, 'e');
}// 做DES
void WINAPI Des(unsigned char *source, unsigned char *dest,
unsigned char *key, unsigned char flag)
{
char tmp[64]; expand0(key, tmp);
setkeystar((unsigned char *)tmp);
if ( flag == ENCRYPT || flag == 'e' || flag == 'E' )
encrypt0(source, dest);
else
    discrypt0(source, dest);
}// 做异或
void WINAPI Do_XOR(unsigned char *dest, unsigned char *source, int size)
{
   int i;
   for(i=0; i<size; i++)
       dest[i] ^= source[i];
}void WINAPI HEX_2_DSP(unsigned char *hex, unsigned char *dsp, int count)
{ //保证在同一串中操作成立
    int i;
    unsigned char ch1, ch2;    for (i = count-1; i >= 0; i--)
    {
        ch1=((hex[i]&0xf0)>>4);
        ch2=(hex[i]&0xf);
        dsp[i*2]=(ch1>9) ? ch1+0x41-10 : ch1+0x30;
        dsp[i*2+1]=(ch2>9) ? ch2+0x41-10 : ch2+0x30;
    }
}

void WINAPI DSP_2_HEX(unsigned char *dsp, unsigned char *hex, int count)
{
    int i;
    unsigned char ch1, ch2;    for (i = 0; i < count; i++)
    {
        ch1 = dsp[i*2] - 0x30;
ch2 = dsp[i*2+1] -0x30;
        hex[i] = (((ch1<=0x09) ? ch1 : (ch1&0x0F)+9) << 4 ) |
      ((ch2<=0x09) ? ch2 : (ch2&0x0F)+9);
    }
}
void encrypt0(unsigned char *text, unsigned char *mtext)
{
  char ll[64],rr[64],LL[64],RR[64];
  unsigned char tmp[64];
  int i,j;  ip(text,(unsigned char *)ll,(unsigned char *)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];
    }
  }  _ip(tmp,(unsigned char *)rr,(unsigned char *)ll);  compress0(tmp,mtext);
}void discrypt0(unsigned char *mtext, unsigned char *text)
{
  char ll[64],rr[64],LL[64],RR[64];
  unsigned char tmp[64];
  int i,j;  ip(mtext,(unsigned char *)ll,(unsigned char *)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];
    }
  }  _ip(tmp,(unsigned char *)rr,(unsigned char *)ll);  compress0(tmp,text);
}void expand0(unsigned char *in, 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 compress0(unsigned char *out, unsigned 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 compress016(unsigned char *out, unsigned 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;
    }
  }
}static int pc_1_c[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
};
static int pc_1_d[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
};
static int pc_2[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
};static int ls_count[16]=
{
  1,1,2,2,2,2,2,2,1,2,2,2,2,2,2,1
};void setkeystar(unsigned char *bits)
{
int i,j; for (i=0;i<28;i++)
C[0][i]=bits[pc_1_c[i]-1];
for (i=0;i<28;i++)
D[0][i]=bits[pc_1_d[i]-1];
for (j=0;j<16;j++)
{
LS((char *)C[j],(char *)C[j+1],ls_count[j]);
LS((char *)D[j],(char *)D[j+1],ls_count[j]);
son((char *)C[j+1],(char *)D[j+1],(char *)K[j+1]);
}
}void LS(char *bits, char *buffer, int count)
{
int i; for (i=0;i<28;i++)
{
buffer[i]=bits[(i+count)%28];
}
}void son(char *cc, char *dd, char *kk)
{
int i;
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_2[i]-1];
}static int ip_tab[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
};
static int _ip_tab[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 ip(unsigned char *text, unsigned char *ll, unsigned char *rr)
{
int i;
char buffer[64]; expand0(text,buffer); for (i=0;i<32;i++)
ll[i]=buffer[ip_tab[i]-1]; for (i=0;i<32;i++)
rr[i]=buffer[ip_tab[i+32]-1];
}void _ip(unsigned char *text, unsigned char *ll, unsigned char *rr)
{
int i;
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[_ip_tab[i]-1];
}static int e_r[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
};

DesCoder.cpp过长，我分两截发的，你用时拷到一起吧，另外，csdn排版有些问题，你自己整理一下吧，都是可以用的

DesCoder.cpp两部分发错了，重新发一次

#include "stdafx.h"
#include "DesCoder.h"
#include <string.h>static unsigned char C[17][28],D[17][28],K[17][48],c,ch1;
void WINAPI GetDesKey(unsigned char *pbyKey, int n)
{
memset(pbyKey, 0, 8);
for(int i=0; i<n; i++)
{
Des(pbyKey, pbyKey, pbyKey, 'E');
}
}
void WINAPI DesMac(unsigned char *source, int iLen, unsigned char *dest,
            unsigned char *key)
{
    unsigned char strXOR[8], strTemp[8];
    int i, iCount=iLen/8, iRemain=iLen%8;
    memset(strXOR, 0, sizeof(strXOR));
    for(i=0; i<iCount; i++)
        Do_XOR(strXOR, source+8*i, 8);
    if (iRemain)
    {
        memset(strTemp, 0, 8);
        memcpy(strTemp, source+8*iCount, iRemain);
        Do_XOR(strXOR, strTemp, 8);
    }
    Des(strXOR, dest, key, 'e');
}// 做DES
void WINAPI Des(unsigned char *source, unsigned char *dest,
unsigned char *key, unsigned char flag)
{
char tmp[64]; expand0(key, tmp);
setkeystar((unsigned char *)tmp);
if ( flag == ENCRYPT || flag == 'e' || flag == 'E' )
encrypt0(source, dest);
else
    discrypt0(source, dest);
}// 做异或
void WINAPI Do_XOR(unsigned char *dest, unsigned char *source, int size)
{
   int i;
   for(i=0; i<size; i++)
       dest[i] ^= source[i];
}void WINAPI HEX_2_DSP(unsigned char *hex, unsigned char *dsp, int count)
{ //保证在同一串中操作成立
    int i;
    unsigned char ch1, ch2;    for (i = count-1; i >= 0; i--)
    {
        ch1=((hex[i]&0xf0)>>4);
        ch2=(hex[i]&0xf);
        dsp[i*2]=(ch1>9) ? ch1+0x41-10 : ch1+0x30;
        dsp[i*2+1]=(ch2>9) ? ch2+0x41-10 : ch2+0x30;
    }
}

void WINAPI DSP_2_HEX(unsigned char *dsp, unsigned char *hex, int count)
{
    int i;
    unsigned char ch1, ch2;    for (i = 0; i < count; i++)
    {
        ch1 = dsp[i*2] - 0x30;
ch2 = dsp[i*2+1] -0x30;
        hex[i] = (((ch1<=0x09) ? ch1 : (ch1&0x0F)+9) << 4 ) |
      ((ch2<=0x09) ? ch2 : (ch2&0x0F)+9);
    }
}
void encrypt0(unsigned char *text, unsigned char *mtext)
{
  char ll[64],rr[64],LL[64],RR[64];
  unsigned char tmp[64];
  int i,j;  ip(text,(unsigned char *)ll,(unsigned char *)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];
    }
  }  _ip(tmp,(unsigned char *)rr,(unsigned char *)ll);  compress0(tmp,mtext);
}void discrypt0(unsigned char *mtext, unsigned char *text)
{
  char ll[64],rr[64],LL[64],RR[64];
  unsigned char tmp[64];
  int i,j;  ip(mtext,(unsigned char *)ll,(unsigned char *)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];
    }
  }  _ip(tmp,(unsigned char *)rr,(unsigned char *)ll);  compress0(tmp,text);
}void expand0(unsigned char *in, 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 compress0(unsigned char *out, unsigned 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 compress016(unsigned char *out, unsigned 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;
    }
  }
}static int pc_1_c[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
};
static int pc_1_d[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
};
static int pc_2[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
};static int ls_count[16]=
{
  1,1,2,2,2,2,2,2,1,2,2,2,2,2,2,1
};void setkeystar(unsigned char *bits)
{
int i,j; for (i=0;i<28;i++)
C[0][i]=bits[pc_1_c[i]-1];
for (i=0;i<28;i++)
D[0][i]=bits[pc_1_d[i]-1];
for (j=0;j<16;j++)
{
LS((char *)C[j],(char *)C[j+1],ls_count[j]);
LS((char *)D[j],(char *)D[j+1],ls_count[j]);
son((char *)C[j+1],(char *)D[j+1],(char *)K[j+1]);
}
}

void LS(char *bits, char *buffer, int count)
{
int i; for (i=0;i<28;i++)
{
buffer[i]=bits[(i+count)%28];
}
}void son(char *cc, char *dd, char *kk)
{
int i;
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_2[i]-1];
}static int ip_tab[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
};
static int _ip_tab[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 ip(unsigned char *text, unsigned char *ll, unsigned char *rr)
{
int i;
char buffer[64]; expand0(text,buffer); for (i=0;i<32;i++)
ll[i]=buffer[ip_tab[i]-1]; for (i=0;i<32;i++)
rr[i]=buffer[ip_tab[i+32]-1];
}void _ip(unsigned char *text, unsigned char *ll, unsigned char *rr)
{
int i;
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[_ip_tab[i]-1];
}static int e_r[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
};static int P[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
};
static int SSS[16][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, char *ll, char *rr, char *LL, char *RR)
{
  int i;
  char buffer[64],tmp[64];  for (i=0;i<48;i++)
buffer[i]=rr[e_r[i]-1];
  for (i=0;i<48;i++)
buffer[i]=(buffer[i]+K[n][i])&1;  s_box(buffer,tmp);  for (i=0;i<32;i++)
    buffer[i]=tmp[P[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 s_box(char *aa, char *bb)
{
  int i,j,k,m;
  int y,z;
  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]=SSS[i][y][z];
    y=0x08;
    for (k=0;k<4;k++)
    {
      bb[m++]=(ss[i]/y)&1;
      y/=2;
    }
  }
}

csdn提交的时候修改剪贴板，所以复制出了错

调试易

求助：ruhe 进行xml文件的加密

解决方案 »