Node Hmacsha1 Seed

I'm trying to send a SOAP request via Node, talking to a service which is secured with WSS. I need to sign the XML response with a SignedInfo element which requires me combining a

Solution 1:

I managed to get there in the end, there's an NPM module called psha1 (https://www.npmjs.com/package/psha1).

Using that library I created the following a generateSignature module which looks as follows:

const crypto = require('crypto');
const psha1 = require('psha1');

exportconstgenerateSignatureValue = ({
  clientSecret,
  serverSecret,
  messageToSign,
}) => {

  const secretKey =
    psha1(clientSecret, serverSecret, 256);

  const hash =
    crypto
      .createHmac('sha1', Buffer.from(secretKey, 'base64'))
      .update(messageToSign)
      .digest('binary');

  returnBuffer
    .from(hash, 'binary')
    .toString('base64');
};

exportdefault generateSignatureValue;

This gives me the desired output :)