amazing-username
76 lines
1.9 KiB
C++
76 lines
1.9 KiB
C++
#include <iostream>
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#include <ios>
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#include <string>
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#include "Decryption.h"
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#include "GenerateKeys.h"
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Decryption::Decryption()
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{
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}
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void Decryption::setMessage(const std::string message)
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{
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this->message = message;
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}
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void Decryption::decryptMessage()
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{
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GenerateKeys gk;
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readFromFile.open("encryptedFile.txt", std::ios::in);
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std::string messageToBeDecrypted, decryptedMessage;
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while(!readFromFile.eof())
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{
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char whiteSpace = static_cast<char>(32);
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//std::cout << "Am I stuck?" << std::endl;
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getline(readFromFile, messageToBeDecrypted, whiteSpace);
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}
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readFromFile.close();
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unsigned short encryptedTwoKey = 2;
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unsigned short beginningOfAlphabetLowerCase = 97;
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unsigned short endingOfAplphabetLowerCase = 122;
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unsigned short whiteSpaceASCIICode = 32;
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for (unsigned short index = 0; index < messageToBeDecrypted.size(); index++)
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{
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if ((index + encryptedTwoKey) < messageToBeDecrypted.size())
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{
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char otherElements[] = {messageToBeDecrypted.at(index), messageToBeDecrypted.at(index + 1), messageToBeDecrypted.at(index + 2)};
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unsigned short number = atoi(otherElements);
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if ((number > endingOfAplphabetLowerCase || number < beginningOfAlphabetLowerCase) && (number != whiteSpaceASCIICode))
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{
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otherElements[0] = {messageToBeDecrypted.at(index)};
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otherElements[1] = {messageToBeDecrypted.at(index + 1)};
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otherElements[2] = {' '};
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number = atoi(otherElements);
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decryptedMessage += gk.decryptedCharacters[number];
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//decryptedMessage.append(gk.decryptedCharacters[number]);
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//newWord += characters[number];
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index += 1;
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}
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else
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{
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decryptedMessage += gk.decryptedCharacters[number];
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//decryptedMessage.append(gk.decryptedCharacters[number]);
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//newWord += characters[number];
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index += 2;
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}
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}
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}
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setMessage(decryptedMessage);
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}
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std::string Decryption::getMessage() const
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{
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return message;
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}
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