Bluecrypt JWK to SSH (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

< 100 lines of code | < 1.0kb gzipped | 2.0kb minified | 2.9kb with comments

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

Need SSH Private Keys?

SSH private keys (id_rsa) are just normal PEM files.

Web Demo

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

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

open index.html

Install

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

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

It's also on npm:

npm install bluecrypt-jwk-to-ssh

Usage

Very simple:

var jwk = {
  "kty": "EC",
  "crv": "P-256",
  "x": "IT1SWLxsacPiE5Z16jkopAn8_-85rMjgyCokrnjDft4",
  "y": "mP2JwOAOdMmXuwpxbKng3KZz27mz-nKWIlXJ3rzSGMo"
};

var pub = SSH.pack({ jwk: jwk, comment: 'root@localhost' });

console.info(pub);

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

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

Bluecrypt™ is owned by AJ ONeal