Caesar-Cipher.cpp

#include <iostream>
#include <stdio.h>
#include <string.h>

using namespace std;

/** 
 * @file Class realize Caesar encryption metods.
 * @class caesarCipher
 * @author Full_droper <full_droper@pm.me>
 * @version 0.0.1
*/
class CaesarCipher {
public:
    /**
    * Encode input data by Caesar Cipher.
    * @name encode
    * @param {string} rawData - raw data for encode.
    * @param {number} key - (default 1) count of shift.
    * @return {string} The encoded by Caesar Cipher data 
    */
    string encode(string rawData,int key){
        char data[rawData.length() + 1];
        strcpy(data, rawData.c_str());
        if(key < 1) key = 1;
        std:string result = "";
        for (int i = 0 ; i < ( sizeof(data) / sizeof(data[0]) - 1); i++) {
            result += (char) (( (int) data[i] ) + key);
        }
        return result;
    }

    /**
    * Decode input data by Caesar Cipher.
    * @name encode
    * @param {string} rawData - raw data for encode.
    * @param {number} key - (default 1) count of shift.
    * @return {string} The decoded by Caesar Cipher data 
    */
    string decode(string rawData,int key){
        char data[rawData.length() + 1];
        strcpy(data, rawData.c_str());
        if(key < 1) key = 1;
        std:string result = "";
        for (int i = 0 ; i < ( sizeof(data) / sizeof(data[0]) - 1 ); i++) {
            result += (char) (( (int) data[i] ) - key);
        }
        return result;
    }
};