#include "stdafx.h"
int n2(int x)//返回2的n次方
{
int t=1;
for(int i=0;i<x;i++)
t*=2;
return t;
}
void COPY(CString a[],CString b[],int n)//b[]赋给a[],n为有效长度
{
for(int i=1;i<=n;i++)
{
a[i]=b[i];
}
}
void COPY1(CString a[],CString b,int length)//b赋予a[],length为有效长度
{
for(int i=1;i<=length;i++)
{
if(b.GetAt(i-1)=='1')
a[i] = _T("1");
else
a[i] = _T("0");
}
}
//-----------------------------------------------------------------------------
int tempIP[65] = {0, 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
};
void PERMUTATIONIP(CString m[])//初始置换 CHECK
{
CString temp[65];
for(int o=0;o<65;o++)
temp[o]=m[o];
for(int i=1;i<=64;i++)
m[i]=temp[tempIP[i]];
}
//-----------------------------------------------------------------------------
int tempE[49] = {0 ,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
};
void EXPAND(CString m33[],CString m49[])//m33[]为32比特的明文输入，m49[]为扩展后48比特输出明文 CHECK
{
for(int i=1;i<=48;i++)
m49[i]=m33[tempE[i]];
}
//-----------------------------------------------------------------------------
int LOOP[17] = { 0, 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1 };
void MOVE(CString key[],int order) //56比特密文左移位,左右28比特分开移,order为轮数1-16 CHECK
{
int i,j;
//左28比特
for(i=0;i<LOOP[order];i++)
{
CString temp1 = key[1];
for(j=1;j<=27;j++)
key[j] = key[j+1];
key[28]=temp1;
}
//右28比特
for(i=0;i<LOOP[order];i++)
{
CString temp2 = key[29];
for(j=29;j<=55;j++)
key[j] = key[j+1];
key[56]=temp2;
}
}
//-----------------------------------------------------------------------------
int temp1[57] = { 0, 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
};
/*
void PERMUTATION1(string key65[],string key57[])//key65[]为置换1输入密钥，key57[]为置换1输出密钥
{
key57[0]="?";
for(int i=1;i<=56;i++)
key57[i]=key65[temp1[i]];
}
*/
//-----------------------------------------------------------------------------
int temp2[49] = { 0, 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
};
void PERMUTATIONA2(CString key57[],CString key49[])//key57[]为置换2输入密钥，key49[]为置换2输出密钥 CHECK
{
for(int i=1;i<=48;i++)
key49[i]=key57[temp2[i]];
}
//-----------------------------------------------------------------------------
int tempP[33] = {0, 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
};
void PERMUTATIONP(CString temp32[])//temp32[]为中间输入，需置换为新32比特 CHECK
{
CString temp[33];
for(int i=0;i<=32;i++)
temp[i]=temp32[i];
for(int j=1;j<=32;j++)
temp32[j]=temp[tempP[j]];
}
//-----------------------------------------------------------------------------
int tempS[32][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,
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,
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,
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
};
CString changeDtoB(int x,int len)//将十进制的数x转换成为二进制，二进制数的长度为len CHECK
{
CString s= _T("");
int binary[20];
for(int i=0;i<20;i++)
binary[i]=0;
int j=len;
while(x!=0)
{
int y=x/2;
binary[j]=x-2*y;
j--;
x=y;
}
for(int m=1;m<=len;m++)
{
if(binary[m]==0)
s += _T("0");
else
s += _T("1");
}
return s;
}
int SDECODE1(CString s,int n)//将n比特的二进制字符串转换为int型十进制数 CHECK
{
int t = 0;
for(int i=0,j=n-1;i<n,j>=0;i++,j--)
t+=(s.GetAt(i)-'0')*n2(j);
return t;
}
void SENCRYPT(CString mm[],int a,int b,CString s[],int c)//从a到b6个比特，返回4比特存于s[] CHECK
{
//计算行
CString temp1 = _T("");
temp1 += mm[a];
temp1 += mm[b];
int row = SDECODE1(temp1,2);
row += (a/6)*4;
//计算列
CString temp2 = _T("");
for(int j=a+1;j<=a+4;j++)
temp2+=mm[j];
int line = SDECODE1(temp2,4);
//j将结果存于s[]
CString temp = changeDtoB(tempS[row][line],4);
for(int i=0;i<4;i++)
{
if(temp.GetAt(i)=='1')
s[c+i]= _T("1");
else
s[c+i]= _T("0");
}
}
CString SDECODE2(int s)//CHECK
{
switch(s)
{
case 0:return _T("0000");
case 1:return _T("0001");
case 2:return _T("0010");
case 3:return _T("0011");
case 4:return _T("0100");
case 5:return _T("0101");
case 6:return _T("0110");
case 7:return _T("0111");
case 8:return _T("1000");
case 9:return _T("1001");
case 10:return _T("1010");
case 11:return _T("1011");
case 12:return _T("1100");
case 13:return _T("1101");
case 14:return _T("1110");
case 15:return _T("1111");
}
return _T("FFFF");
}
//-----------------------------------------------------------------------------
int tempNIP[65] = {0, 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 PERMUTATIONNIP(CString m[])//初始逆置换 CHECK
{
CString temp[65];
for(int o=0;o<65;o++)
temp[o]=m[o];
for(int i=1;i<=64;i++)
m[i]=temp[tempNIP[i]];
}
//-----------------------------------------------------------------------------
void XOR(CString a[],CString b[],CString c[],int length)//a[]与b[]异或，结果存于c[] CHECK
{
for(int i=1;i<=length;i++)
{
if(a[i]=="0"&&b[i]=="0"||a[i]=="1"&&b[i]=="1")
c[i] = _T("0");
else
c[i] = _T("1");
}
}
//----------------------------------------------
