Bluecrypt SSH to JWK (for Browsers)

A minimal library to parse an SSH public key (id_rsa.pub) and convert it into a public JWK using Vanilla JS.

Works for RSA and ECDSA public keys.

Features

< 150 lines of code | 1.0kb gzipped | 2.4kb minified | 3.7kb with comments

• [x] SSH Public Keys
• [x] RSA Public Keys
• [x] EC Public Keys
  • P-256 (prime256v1, secp256r1)
  • P-384 (secp384r1)
• [x] node.js version
  • ssh-to-jwk.js
• [x] on npm as bluecrypt-jwk-to-ssh

Need SSH Private Keys?

SSH private keys (id_rsa) are just normal PEM files, so you can use Eckles or Rasha, as mentioned above.

Web Demo

https://coolaj86.com/demos/ssh-to-jwk/

git clone https://git.coolaj86.com/coolaj86/bluecrypt-ssh-to-jwk.js
pushd bluecrypt-ssh-to-jwk.js/

open index.html

Install

You can use it as a plain-old javascript library:

<script src="https://git.coolaj86.com/coolaj86/bluecrypt-ssh-to-jwk.js/raw/branch/master/ssh-to-jwk.js"></script>

It's also on npm:

npm install bluecrypt-ssh-to-jwk

Usage

Very simple:

var pub = 'ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBCE9Uli8bGnD4hOWdeo5KKQJ/P/vOazI4MgqJK54w37emP2JwOAOdMmXuwpxbKng3KZz27mz+nKWIlXJ3rzSGMo= root@localhost';

var ssh = SSH.parse(pub);

console.info(ssh.jwk);

Other Tools in the Bluecrypt Suite

• Bluecrypt JWK to SSH (RSA, EC, SSH)
• Bluecrypt ASN.1 decoder (x509, RSA, EC, etc)
• Bluecrypt ASN.1 builder (x509, RSA, EC, etc)

Legal

ssh-to-jwk.js | MPL-2.0 | Terms of Use | Privacy Policy

Bluecrypt™ is owned by AJ ONeal