smartcrypt

Simple encryption library for encrypting and decrypting arrays.

This was created for passing sensitive data to a URL via the query string.

It currently only supports the aes-256-gcm algorithm.

Installation

npm install smartcrypt

Examples

NEVER expose your encryption keys to the public.

Each key is expected to be 32 bytes. You will receive an error if the key not the correct length.

You can use random.org to generate your keys.

Using a single key for all variables

var SmartCrypt = require('smartcrypt');

var keys = [
  '42901afcce3af267df40f9da54b2f3816ff4b2e9a148fdd207e8246454fb46c5'
];

var crypt = new SmartCrypt(keys);

var encrypted = crypt.encrypt(['[e-mail]', 'foobar123']).toString('base64');
console.log('encrypted:', encrypted);

var decrypted = crypt.decrypt(encrypted);
console.log('username:', decrypted[0].toString());
console.log('password:', decrypted[1].toString());

Using a unique key for each variable

var SmartCrypt = require('smartcrypt');

var keys = [
  'f015411c712a818b37d42bba37bf1984d5b26bf39c12395d5c9d83543a672a3b', // key for "username"
  '1a3034a435cc0ed70da1f7ad36e8889e5016f6ef7cf1bde5328891947dd1b326'  // Key for "password"
];

var crypt = new SmartCrypt(keys);

var encrypted = crypt.encrypt(['[e-mail]', 'foobar123']).toString('base64');
console.log('encrypted:', encrypted);

var decrypted = crypt.decrypt(encrypted);
console.log('username:', decrypted[0].toString());
console.log('password:', decrypted[1].toString());