cipher.hpp

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/*
 * definitions for openGPMP naive ciphers
 */
 
#ifndef CIPHER_H
#define CIPHER_H
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <string>
 
namespace gpmp {
 
// monoalphabetic substitution cipher class
class Cipher {
  public:
    /* compute the caesar cipher of a given string with a shift key */
    std::string caesar(std::string plaintext, int64_t key);
    /* encode and prepare the given string for the cipher */
    std::string keyword_encode(std::string key);
    /* compute the keyword cipher of a given string */
    std::string keyword(std::string plaintext, std::string encoded_text);
};
 
} // namespace gpmp
 
#endif