node-hkdf

The HMAC-based Key Derivation Function for node.js.

spec: https://tools.ietf.org/html/rfc5869

install

npm install hkdf

use

const HKDF = require('hkdf');

var hkdf = new HKDF('sha256', 'salt123', 'initialKeyingMaterial');
hkdf.derive('info', 42, function(key) {
  // key is a Buffer, that can be serialized however one desires
  console.log(key.toString('hex'));
});

license

Apache License 2.0