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How to encrypt a string using caesar cipher method in C++

1 Answer

0 votes
#include <iostream>
#include <string>

// A Caesar cipher is a method of encoding text. 
// Caesar ciphers shifted letters in the alphabet by some fixed number of spaces

std::string encryptCaesarCipher(const std::string& text, int shift) {
    std::string result = "";

    for (char ch : text) {
        if (isalpha(ch)) {
            char base = islower(ch) ? 'a' : 'A';
            ch = (ch - base + shift) % 26 + base;
        }
        result += ch;
    }

    return result;
}

int main() {
    std::string str = "C++ Programming";
    int shift = 3; // Shift each character by 3 positions

    std::string encryptedStr = encryptCaesarCipher(str, shift);
    
    std::cout << encryptedStr << std::endl;
}

  
      
      
/*
run:
      
F++ Surjudpplqj
       
*/

 



answered Dec 26, 2024 by avibootz

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