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
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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
/**
* @file HASHCrypt.cpp
* @brief HASHCrypt class definitions
* @author manzerbredes
* @date 8 Mars 2015
*
* Contain all definitions of HASHCrypt class.
*
*/
//----- class -----
#include "HASHCrypt.hpp"
//Constructor
HASHCrypt::HASHCrypt(){
}
//Destructor
HASHCrypt::~HASHCrypt(){
}
//Contruct MD5 over 128 bits and put it into digest
void HASHCrypt::getMD5_128(std::string chain, byte* digest, int size){
//Digest size controller
this->checkDigestSize(CryptoPP::Weak1::MD5::DIGESTSIZE,size);
//Create the MD5 on digest parameter
CryptoPP::Weak1::MD5 hash;
hash.CalculateDigest( digest, (byte*) chain.c_str(), chain.length() );
}
//Contruct SHA-256 and put it into digest
void HASHCrypt::getSHA_256(std::string chain, byte* digest, int size){
//Digest size controller
this->checkDigestSize(CryptoPP::SHA256::DIGESTSIZE,size);
//Create the SHA-256 on digest parameter
CryptoPP::SHA256 hash;
hash.CalculateDigest( digest, (byte*) chain.c_str(), chain.length() );
}
//Compare 2 digest (same size)
bool HASHCrypt::compareDigest(byte* digest1, byte* digest2, int size){
//Try is more safe
try
{
//Compare the two digest
for(int i=0; i<size; i++){
//Return false if digest are different
if(digest1[i] != digest2[i]){
return false;
}
}
}
catch (std::exception& e)
{
std::cerr << "Exception catched : " << e.what() << std::endl;
}
//Return true if digest are equals
return true;
}
//Convert digest to string
std::string HASHCrypt::digestToString(byte* digest, int size){
CryptoPP::HexEncoder encoder;
std::string output;
encoder.Attach( new CryptoPP::StringSink( output ) );
encoder.Put( digest, size );
encoder.MessageEnd();
return output;
}
//Check the size of the digest
void HASHCrypt::checkDigestSize(int sizeRequired, int size){
try{
if(size !=sizeRequired){
throw this->getInvalidDigestSizeError(sizeRequired, size);
}
}
catch(std::string erreur){
std::cerr << erreur <<std::endl;
std::exit(EXIT_FAILURE);
}
}
//Make the error
std::string HASHCrypt::getInvalidDigestSizeError(int sizeRequired, int size){
std::ostringstream erreurStream;
erreurStream << "Invalid digest size ! ("<< sizeRequired <<" bytes required and "<< size <<" given)";
return erreurStream.str();
}
|
