google-auth-library-nodejs/lib/pemverifier.js

/**
 * Copyright 2014 Google Inc. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

'use strict';

var crypto = require('crypto');

function PemVerifier() {
  this.verify = function(pubkey, data, signature, encoding) {
    var verifier = crypto.createVerify('sha256');
    verifier.update(data);
    return verifier.verify(pubkey, signature, encoding);
  };
}

/**
 * Export PemVerifier.
 */
module.exports = PemVerifier;