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Files
PasswordEncryption/Decryption.cpp
T
2017-06-20 18:33:38 -05:00

56 lines
1.2 KiB
C++

#include<iostream>
#include<fstream>
#include<sstream>
#include<ios>
#include<string>
#include"Decryption.h"
#include"GenerateKeys.h"
Decryption::Decryption(const std::string& message)
{
this->message = message;
decryptMessage();
}
void Decryption::setDecryptedMessage(const std::string& message)
{ this->decryptedMessage = message; }
void Decryption::decryptMessage()
{
GenerateKeys gk{};
std::fstream ioEvent{};
ioEvent.open("encryptedFile.txt", std::ios::in);
std::string messageToBeDecrypted{}, decryptedMessage{};
while(ioEvent >> messageToBeDecrypted)
ioEvent.close();
for (auto indexOfChar = 0u; indexOfChar<messageToBeDecrypted.size(); indexOfChar+=5)
{
char cryptedKey[5]{};
for (auto index = 0; index!=5; ++index)
cryptedKey[index] = (messageToBeDecrypted.at(indexOfChar + index));
decryptedMessage += gk.decryptedCharacters[cstringToString(cryptedKey, 5)];
}
setDecryptedMessage(decryptedMessage);
}
std::string Decryption::getDecryptedMessage() const
{ return decryptedMessage; }
std::string Decryption::cstringToString(char tmp[], const int& SIZE)
{
std::string tmpString{};
std::stringstream cToS{};
for (auto index = 0; index!=SIZE; ++index)
cToS << tmp[index];
cToS >> tmpString;
return tmpString;
}