https://www.xgeek.net/node-js/encrypte-decrypte-string-in-node-js/

crypto.js

var crypto = require("crypto");
var uncipheredText = 'password123';
var secretkey ='your_secret_key';

// Encrypte
var cipher = crypto.createCipher('aes192', secretkey);
cipher.update(uncipheredText);
var cipheredText = cipher.final('base64');
console.log('Encrypted String :' + cipheredText);

// Decrypte
var decipher = crypto.createDecipher('aes192', secretkey);
decipher.update(cipheredText);
var data = decipher.final('utf8');
console.log('Decrypted String :' + data);