@aws-crypto/hkdf-node
v4.0.0
Published
nodejs hkdf crypto primitive
Downloads
886,995
Keywords
Readme
@aws-crypto/hkdf-node
This module exports a HMAC-based Key Derivation Function (HKDF) for Node.js. HKDF is very simple to implement, but this module has been reviewed and has extensive test vectors.
This module is used in the the AWS Encryption SDK for JavaScript to provide HKDF key derivation for specific algorithm suites.
Specification: https://tools.ietf.org/html/rfc5869
install
npm install @aws-crypto/hkdf-node
use
const HKDF = require('@aws-crypto/hkdf-node')
const expand = HKDF('sha256')('some key', 'some salt')
const info = {some: 'info', message_id: 123}
const key = expand(32, Buffer.from(JSON.stringify(info)))
test
npm test
license
This SDK is distributed under the Apache License, Version 2.0, see LICENSE.txt and NOTICE.txt for more information.