86 lines
2.8 KiB
C++
86 lines
2.8 KiB
C++
/*##############################################################################
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## Author: Shaun Reed ##
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## Legal: All Content (c) 2021 Shaun Reed, all rights reserved ##
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## About: An example of using columnar transposition cipher ##
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## + Using concept at www.braingle.com/brainteasers/codes/columnartrans.php ##
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## ##
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## Contact: shaunrd0@gmail.com | URL: www.shaunreed.com | GitHub: shaunrd0 ##
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################################################################################
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*/
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#include "lib-cipher.hpp"
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#include<iostream>
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// Columnar transposition cipher
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// https://www.braingle.com/brainteasers/codes/columnartrans.php#form
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// NOTE: Must check the 'irregular case' box to produce same results
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// + I only used the irregular case to encrypt and decrypt
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// + I did not write any code for testing with the regular case
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/******************************************************************************/
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// Main program loop
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int main (const int argc, const char * argv[]) {
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// Left some test cases I used commented out :)
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// Using example keyword from www.braingle.com
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// + The embedded example there doesn't seem to support numbers in keywords :(
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CipherData cData("ZEBRAS");
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// Taking user input for keyword using CipherData ctor
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// CipherData cData;
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int choice = 0;
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bool exit = false;
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std::string message; // Message to encrypt or decrypt
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while (!exit) {
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std::string result;
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switch (choice) {
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case 1:
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std::cout << "\nEncrypting...\n";
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// Encrypt example from www.braingle.com
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result = cData.Encrypt("WEAREDISCOVEREDFLEEATONCE");
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// Take input for encrypting a message
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// result = cData.Encrypt();
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std::cout << "Encrypted message: " << result << std::endl;
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exit = true;
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break;
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case 2:
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std::cout << "\nDecrypting...\n";
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// Encrypt, decrypt example from www.braingle.com
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result = cData.Decrypt(cData.Encrypt("WEAREDISCOVEREDFLEEATONCE"));
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// Take input for previously encrypted message to decrypt
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// result = cData.Decrypt();
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std::cout << "Decrypted message: " << result << std::endl;
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exit = true;
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break;
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default:
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std::cout << "What would you like to do?\n1. Encrypt\n2. Decrypt\n";
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// Take input, handle it accordingly
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// + https://www.cplusplus.com/forum/general/207458/
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if (!(std::cin >> choice)) {
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std::cout << "Invalid character input, choose an option below\n";
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}
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else if (choice != 1 && choice != 2) {
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std::cout << "Incorrect option entered (" << choice << ")\n";
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}
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std::cin.clear();
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std::cin.ignore();
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break;
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}
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}
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return 0;
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}
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