DinoChiesa

function computeHttpSignature(config, headerHash) {
  var template = 'keyId="${keyId}",algorithm="${algorithm}",headers="${headers}",signature="${signature}"',
      sig = template;

  // compute sig here
  var signingBase = '';
  config.headers.forEach(function(h){
    if (signingBase !== '') { signingBase += '\n'; }
    signingBase += h.toLowerCase() + ": " + headerHash[h];
  });