var fs = require('fs');
var https = require('https');
var httpSignature = require('http-signature');
var key = fs.readFileSync('./key.pem', 'ascii');
var options = {
  host: 'localhost',
  port: 8443,
  path: '/',
  method: 'GET',
  headers: {}
};
// Adds a 'Date' header in, signs it, and adds the
// 'Authorization' header in.
var req = https.request(options, function(res) {
  console.log(res.statusCode);
});
httpSignature.sign(req, {
  key: key,
  keyId: './cert.pem',
  keyPassphrase: 'secret' // (optional)
});
req.end();

var fs = require('fs');
var https = require('https');
var httpSignature = require('http-signature');
var options = {
  key: fs.readFileSync('./key.pem'),
  cert: fs.readFileSync('./cert.pem')
};
https.createServer(options, function (req, res) {
  var rc = 200;
  var parsed = httpSignature.parseRequest(req);
  var pub = fs.readFileSync(parsed.keyId, 'ascii');
  if (!httpSignature.verifySignature(parsed, pub))
    rc = 401;
  res.writeHead(rc);
  res.end();
}).listen(8443);