CaesarCipher operator*(const CaesarCipher &c1, const CaesarCipher &c2)
{
assert(((c2.key != 0 && c2.ciphertext.compare("") == 0 && c2.plaintext.compare("") == 0) || (c1.ciphertext.compare(c2.plaintext) == 0)) && "Cipher composition failed, text doesn't match.");
CaesarCipher result;
result.init(c1.plaintext, c2.ciphertext, ((c1.key + c2.key) % 26));
if (c2.ciphertext.compare("") == 0)
result.encrypt();
return result;
}
int main()
{
const string plainText =
"MOST GOOD PROGRAMMERS DO PROGRAMMING NOT BECAUSE "
"THEY EXPECT TO GET PAID OR GET ADULATION BY THE PUBLIC "
"BUT BECAUSE IT IS FUN TO PROGRAM"; // Quote by Linus Torvalds
cout << "Plain message: " << endl
<< plainText << endl << endl;
/*************************************************************************/
const int privateKey = 5;
cout << "Private key: " << endl
<< privateKey << endl << endl;
string cipherText = CaesarCipher::encrypt(plainText, privateKey);
cout << "Ciphered message: " << endl
<< cipherText << endl << endl;
string decipheredText = CaesarCipher::decrypt(cipherText, privateKey);
cout << "Deciphered message using known key: " << endl
<< decipheredText << endl << endl;
/*************************************************************************/
CaesarCipher mCipher;
string autoDecryptedText = mCipher.decrypt(cipherText);
cout << "Deciphered message using auto key finder: " << endl
<< autoDecryptedText << endl << endl;
cout << "Possible key used: "
<< mCipher.getPossiblePrivateKey() << endl;
return 0;
}
int main(int argc, const char *argv[]) {
IOUtils io;
io.openStream(argc,argv);
std::string input, encrypted, decrypted;
input = io.readFromStream();
std::cout << "Original text:" << std::endl << input;
CaesarCipher caesar;
encrypted = caesar.encrypt(input);
std::cout << "Encrypted text:" << std::endl << encrypted;
decrypted = caesar.decrypt(encrypted);
std::cout << "Decrypted text:" << std::endl << decrypted;
if (decrypted == input) std::cout << "Decrypted text matches input!" << std::endl;
else {
std::cout << "Oops! Decrypted text doesn't match input!" << std::endl;
return 1;
}
return 0;
}
#define CATCH_CONFIG_MAIN
#include "catch.hpp"
#include "CaesarCipher.hpp"
#include "ProcessCommandLine.hpp"
CaesarCipher my_cipher = CaesarCipher("5");
TEST_CASE("Indices are properly wrapped","[wrapping]") {
REQUIRE((my_cipher.wrapIt(27) == 1));
REQUIRE(( my_cipher.wrapIt(-3) == 23 ));
}
TEST_CASE("Characters are correctly shifted","[shift]") {
REQUIRE(false);
}
TEST_CASE("Strings are correctly encrypted", "[encryption]") {
}