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FH98ViewOnPlaneSoftware/Src/CH91PayloadSoftware/cDESUtils.cpp

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2 years ago
#include "StdAfx.h"
#include "cDESUtils.h"
/**
*<EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD>ʼ<EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>
*/
int T1[8][8]={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};
/**
*<EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD>ʼ<EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>
*/
int T2[8][7]={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,
3,55,47,39,31,23,15,
7,62,54,46,38,30,22,
14,6,61,53,45,37,29,
21,13,5,28,20,12,4};
/**
*<EFBFBD><EFBFBD>Կѭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
//int T3[16]={1,1,2,2,2,2,2,2,1,2,2,2,2,2,2,1};
int T3[16]={1,2,2,3,1,1,3,2,2,1,3,2,1,1,4,1};
/**
*<EFBFBD><EFBFBD>Կѹ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>
*/
int T4[8][6]={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};
/**
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>չ<EFBFBD><EFBFBD>
*/
int T5[8][6]={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};
/**
*S<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>
*/
int S[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},{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}}};
/**
*P<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>
*/
int P[4][8]={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};
/**
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>
*/
int T6[8][8]={ 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};
cDESUtils::cDESUtils(void)
{
}
cDESUtils::~cDESUtils(void)
{
}
/**
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 64λ->64λ
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>sΪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ѭ<EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD>64Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵΪ<EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
std::string cDESUtils::final_permutation(string s)
{
string rs="";
for(int i=0;i<8;i++)
{
for(int j=0;j<8;j++)
{
rs+=s[T6[i][j]-1];
}
}
return rs;
}
/**
*P<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 32λ->32λ
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>sΪS<EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
std::string cDESUtils::P_box(string s)
{
string rs="";
for(int i=0;i<4;i++)
{
for(int j=0;j<8;j++)
{
rs+=(s[P[i][j]-1]);
}
}
return rs;
}
/**
*S<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 48λ->32λ
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>sΪ48λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵΪ32λ
*/
std::string cDESUtils::S_box(string s)
{
string rs="";
string s1;
int k1,k2;//S<>е<EFBFBD><D0B5>кź<D0BA><C5BA>к<EFBFBD>
int h=1;//<2F><><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD>Ǹ<EFBFBD>S<EFBFBD><53>
for(int i=0;i<=42;i=i+6,h++)
{
k1=(s[i]-'0')*2+(s[i+5]-'0')*1;
k2=(s[i+1]-'0')*8+(s[i+2]-'0')*4+(s[i+3]-'0')*2+(s[i+4]-'0')*1;
int x=S[h-1][k1][k2];
s1="";
int y=8;
for(int j=1;j<=4;j++)
{
if(x<y)
{
s1+="0";
y/=2;
}else
{
s1+="1";
x=x%y;
y/=2;
}
}
rs+=s1;
}
return rs;
}
/**
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㺯<EFBFBD><EFBFBD>
*Ҫ<EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ
*/
std::string cDESUtils::XOR(string s1,string s2)
{
string rs="";
for(int i=0;i<s1.length()&&i<s2.length();i++)
{
rs+=((s1[i]-'0')^(s2[i]-'0'))+'0';
}
return rs;
}
/**
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>չ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> 32->48
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>sΪ<EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><EFBFBD>Ұ벿<EFBFBD><EFBFBD> 32λ
*<EFBFBD><EFBFBD>չ<EFBFBD><EFBFBD>48λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
std::string cDESUtils::plaintext_righthalf_extended_permutation(string s)
{
string rs="";
for(int i=0;i<8;i++)
{
for(int j=0;j<6;j++)
{
rs+=s[T5[i][j]-1];
}
}
return rs;
}
/**
*<EFBFBD><EFBFBD>Կѹ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 56λ->48λ
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>sΪ56Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ48λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ
*/
std::string cDESUtils::secret_key_compression_replacement(string s)
{
string rs="";
for(int i=0;i<8;i++)
{
for(int j=0;j<6;j++)
{
rs+=s[T4[i][j]-1];
}
}
return rs;
}
/**
*<EFBFBD><EFBFBD>Կѭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƺ<EFBFBD><EFBFBD><EFBFBD> 56λ->56λ
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>kΪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD> sΪ<EFBFBD><EFBFBD>Կ
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵλ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
std::string cDESUtils::secret_ket_left_move(int k,string s)
{
string s1=s.substr(0,28);
string s2=s.substr(28,28);
string rs=s1.substr(k,28-k)+s1.substr(0,k)+s2.substr(k,28-k)+s2.substr(0,k);
return rs;
}
/**
*<EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD>ʼ<EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 64λ->58λ
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>sΪ64λ<EFBFBD>ij<EFBFBD>ʼ<EFBFBD><EFBFBD>Կ
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵΪ58λ
*/
std::string cDESUtils::secret_key_initial_permutation(string s)
{
string rs="";
for(int i=0;i<8;i++)
{
for(int j=0;j<7;j++)
{
rs+=s[T2[i][j]-1];
}
}
return rs;
}
/**
*<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>ʼ<EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 64λ->64λ
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>sΪ<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> 64λ
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵΪ6λ
*/
std::string cDESUtils::plaintext_initial_permutation(string s)
{
string rs="";
for(int i=0;i<8;i++)
{
for(int j=0;j<8;j++)
{
rs+=s[T1[i][j]-1];
}
}
return rs;
}
/**
*16<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת2<EFBFBD><EFBFBD><EFBFBD>ƺ<EFBFBD><EFBFBD><EFBFBD>
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>sΪ16<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ2<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>
*/
std::string cDESUtils::H(string s)
{
string s1;
string rs="";
for(int i=0;i<s.length();i++)
{
int x;
if(s[i]>='0'&&s[i]<='9')
{
x=s[i]-'0';
}else
{
x=s[i]-'A'+10;
}
s1="";
int y=8;
for(int j=1;j<=4;j++)
{
if(x<y)
{
y/=2;
s1+="0";
}else
{
s1+="1";
x=x%y;
y=y/2;
}
}
rs+=s1;
}
return rs;
}
/**
*2<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת16<EFBFBD><EFBFBD><EFBFBD>ƺ<EFBFBD><EFBFBD><EFBFBD>
*strΪ2<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵΪ16<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>
*/
std::string cDESUtils::G(string str)
{
string rs="";
char temp;
for(int i=0;i<=str.length()-4;i=i+4)
{
int x=(str[i]-'0')*8+(str[i+1]-'0')*4+(str[i+2]-'0')*2+str[i+3]-'0';
if(x>=10)
{
temp=(char)(x-10+'A');
}else
{
temp=(char)(x+'0');
}
rs+=temp;
}
return rs;
}
/**
*<EFBFBD><EFBFBD>װ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>f
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>32λ<EFBFBD><EFBFBD><EFBFBD>ݺ<EFBFBD>48λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ <EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>32λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*str1:32λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> str2:48λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ32λ
*/
std::string cDESUtils::foldFunc(string str1,string str2)
{
//32λ<32><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>չΪ48λ
string expendR=plaintext_righthalf_extended_permutation(str1);
//<2F><>Կ<EFBFBD><D4BF><EFBFBD><EFBFBD>չ<EFBFBD><D5B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
string rs=XOR(expendR,str2);
//S<><53><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(48->32)
rs=S_box(rs);
//P<><50><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(32->32)
rs=P_box(rs);
return rs;
}
/**
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD>ɺ<EFBFBD><EFBFBD><EFBFBD>
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>sΪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>16<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ
*/
void cDESUtils::generateKeys(string s)
{
s=secret_key_initial_permutation(s);
for(int i=1;i<=16;i++)
{
s=secret_ket_left_move(T3[i-1],s);
Keys[i]=secret_key_compression_replacement(s);
}
}
/**
*DES<EFBFBD><EFBFBD><EFBFBD>ܺ<EFBFBD><EFBFBD><EFBFBD> 64λ->64λ
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>str1Ϊ64λ<EFBFBD>ĸ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵΪ64λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
std::string cDESUtils::encrypt(string str1)
{
//<2F><>һ<EFBFBD><D2BB>:<3A><><EFBFBD>ij<EFBFBD>ʼ<EFBFBD>û<EFBFBD> 64->64
str1=plaintext_initial_permutation(str1);
//<2F>ڶ<EFBFBD><DAB6><EFBFBD>:<3A><><EFBFBD>ݷ<EFBFBD><DDB7><EFBFBD>
string left=str1.substr(0,32);
string right=str1.substr(32,32);
string newleft;
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>:16<31>ֵ<EFBFBD><D6B5><EFBFBD>
for(int i=1;i<=16;i++)
{
newleft=right;
right=XOR(left,foldFunc(right,Keys[i]));
left=newleft;
}
//<2F><><EFBFBD>IJ<EFBFBD>:<3A>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD> ע<><D7A2>λR16L16
string rs=right+left;
//<2F><>β<EFBFBD>û<EFBFBD>
rs=final_permutation(rs);
return rs;
}
/**
*<EFBFBD><EFBFBD><EFBFBD>ܺ<EFBFBD><EFBFBD><EFBFBD>
*strΪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
std::string cDESUtils::decrypt(string str)
{
//<2F><><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD><C4B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><C4BD>г<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>(64->64)
str=plaintext_initial_permutation(str);
//<2F><><EFBFBD><EFBFBD>
string left=str.substr(0,32);
string right=str.substr(32,32);
string newleft;
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կʹ<D4BF><CAB9> 16<31>ֵ<EFBFBD><D6B5><EFBFBD>
for(int i=16;i>=1;i--)
{
newleft=right;
right=XOR(left,foldFunc(right,Keys[i]));
left=newleft;
}
//<2F>ϲ<EFBFBD>
string rs=right+left;
//<2F><><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>
rs=final_permutation(rs);
return rs;
}