code: function computeHash(data) {
      const ha1 =
        data.ha1 ||
        _computeHash(
          data.algorithm,
          [data.username, data.realm, data.password].join(':'),
        );
      const ha2 = _computeHash(data.algorithm, [data.method, data.uri].join(':'));
  
      return _computeHash(
        data.algorithm,
        [ha1, data.nonce, data.nc, data.cnonce, data.qop, ha2].join(':'),
      );
    }
docs: Compute the Digest authentication hash from the given credentials.
  @param  {Object} data The credentials to encode and other encoding details.
  @return {String}             The hash representing the credentials.
  @example
  assert.equal(
  DIGEST.computeHash({
  username: 'Mufasa',
  realm: 'testrealm@host.com',
  password: 'Circle Of Life',
  method: 'GET',
  uri: '/dir/index.html',
  nonce: 'dcd98b7102dd2f0e8b11d0f600bfb0c093',
  nc: '00000001',
  cnonce: '0a4f113b',
  qop: 'auth',
  algorithm: 'md5'
  }),
  '6629fae49393a05397450978507c4ef1'
  );
  @api public