Merge branch 'PARSER'

1 files changed, 116 insertions, 0 deletions

diff --git a/src/CryptClass/HASHCrypt.cpp b/src/CryptClass/HASHCrypt.cpp
new file mode 100644
index 0000000..eed9cb5
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+++ b/src/CryptClass/HASHCrypt.cpp
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+/**
+ * @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();
+}