const { encrypt, decrypt } = require('node-encryption');

const text = 'This will be encrypted';
const encryptionKey = 'mysecretkey1337';

const encrypted = encrypt(text, encryptionKey);

const decrypted = decrypt(encrypted, encryptionKey);

console.log(decrypted.toString());
// Output: This will be encrypted

// By using a buffer
const encryptBuffer = encrypt(Buffer.from(text), encryptionKey);

const decryptBuffer = decrypt(encryptBuffer, encryptionKey);

console.log(decryptBuffer.toString());
// Output: This will be encrypted

const image = fs.readFileSync('./shyguy.png');

const encryptionKey = 'mysecretkey1337';

const encrypted = encrypt(image, encryptionKey);

const decrytedImageBuffer = decrypt(encrypted, encryptionKey);