jose-chacha

This is a plugin for the jose package that implements the following Individual Draft

ChaCha derived AEAD algorithms in JSON Object Signing and Encryption (JOSE)
source: https://tools.ietf.org/html/draft-amringer-jose-chacha-01

The following new algorithms are available

• C20P content encryption algorithm
• XC20P content encryption algorithm
• C20PKW content encryption key wrapping algorithm
• XC20PKW content encryption key wrapping algorithm
• ECDH-ES+C20PKW Key Agreement with Elliptic Curve Diffie-Hellman Ephemeral Static
• ECDH-ES+XC20PKW Key Agreement with Elliptic Curve Diffie-Hellman Ephemeral Static

Why a plugin?

1. The draft is an individual draft, breaking changes or lacking adoption may occur, hence its not something desired to be part of jose core package.
2. AEAD_XCHACHA20_POLY1305 is not available in OpenSSL bundled with Node.js yet, in the plugin this cipher is handled via libsodium.

Usage

Installing

npm install jose // jose ^1.16.0 || ^2.0.1 declared as a peer dependency
npm install jose-chacha

const jose = require('jose')
const chacha = require('jose-chacha')

;(async () => {
  await chacha // wait for libsodium to be ready!

  {
    const key = jose.JWK.generateSync('oct', 256)
    console.log(key.algorithms())
    console.log(jose.JWE.encrypt('foobar', key, { alg: 'dir', enc: 'XC20P' }))
  }

  {
    const key = jose.JWK.generateSync('EC', 'P-256')
    console.log(key.algorithms())
    console.log(jose.JWE.encrypt('foobar', key, { alg: 'ECDH-ES+XC20PKW', enc: 'XC20P' }))
  }
})()

Note: This plugin only supports Node.js runtime >= 12.0.0 and Electron >= 6.0.0

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Support

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