JWK to SSH (for node.js)

A minimal library to encode a JWK as an SSH public key (id_rsa.pub).

Works for RSA and ECDSA public keys.

Features

< 75 lines of code | < 0.7kb gzipped | 1.5kb minified | 2.1kb with comments

• SSH Public Keys
• RSA Public Keys
• EC Public Keys
  • P-256 (prime256v1, secp256r1)
  • P-384 (secp384r1)
• Browser Version
  • Bluecrypt JWK to SSH

Need JWK to SSH? PEM to SSH?

Try one of these:

• jwk-to-ssh.js (RSA + EC)
• Eckles.js (more EC utils)
• Rasha.js (more RSA utils)

Need SSH Private Keys?

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

CLI

You can install jwk-to-ssh and use it from command line:

npm install -g jwk-to-ssh

jwk-to-ssh pubkey.jwk.json

Usage

You can also use it from JavaScript:

var fs = require('fs');
var jwktossh = require('jwk-to-ssh');

var jwk = JSON.parse(fs.readFileSync("./pubkey.jwk.json"));
var pub = jwktossh.pack({
  jwk: jwk
, comment: 'root@localhost'
});

console.info(pub);

Legal

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