const crypto = require('crypto');

//  WARNING: createCipher() is deprecated
const cipher = crypto.createCipher('aes-256-cbc', '0000');
let plainText = 'Hello Node';
let updateCipherText = cipher.update(plainText, 'utf8', 'base64');
console.log(`cipher.update('${plainText}') returns `, `'${updateCipherText}'`);

let cipherText = cipher.final('base64');
console.log("cipher.final() returns", `'${cipherText}'`);

const decipher = crypto.createDecipher('aes-256-cbc', '0000');
let updateDecipherText = decipher.update(cipherText, 'base64', 'utf8');
console.log(`decipher.update('${cipherText}) returns `, `'${updateDecipherText}'`);

plainText = decipher.final('utf8');
console.log(`decipher.final() returns`, `'${plainText}'`);