Question

How to use XOR Encryption (XOR Cipher) to encryption a string in Node.js

Answer 1

function XOREncryption(s, key) {
    const slen = s.length, keylen = key.length;
          
  let result = '';
      
  for (let i = 0; i < slen; i++) {
        result += String.fromCharCode(s.charCodeAt(i) ^ key.charCodeAt(i % key.length));
  }
      
    return result;
}    
         
 
const s = "Node.js is an open-source cross-platform back-end JavaScript runtime environment";
const key = "secretkey";
          
const cipher = XOREncryption(s, key);
console.log(cipher);
          
const noncipher = XOREncryption(cipher, key);
console.log(noncipher);
  
  
  
  
/*
run:
  
=
KEE^E
H
E
^
E>
K
T
Node.js is an open-source cross-platform back-end JavaScript runtime environment
  
*/

 

70+ SQL courses for beginners and professionals