chrome/renderer/resources/extensions/enterprise_platform_keys/key_pair.js

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 var utils = require('utils');
   6 var intersect = require('platformKeys.utils').intersect;
   7 var keyModule = require('platformKeys.Key');
   8 var Key = keyModule.Key;
   9 var KeyType = keyModule.KeyType;
  10 var KeyUsage = keyModule.KeyUsage;
  11
  12 /**
  13  * Implementation of WebCrypto.KeyPair used in enterprise.platformKeys.
  14  * @param {ArrayBuffer} publicKeySpki The Subject Public Key Info in DER
  15  *   encoding.
  16  * @param {KeyAlgorithm} algorithm The algorithm identifier.
  17  * @param {KeyUsage[]} usages The allowed key usages.
  18  * @constructor
  19  */
  20 var KeyPairImpl = function(publicKeySpki, algorithm, usages) {
  21   this.publicKey = new Key(KeyType.public,
  22                            publicKeySpki,
  23                            algorithm,
  24                            intersect([KeyUsage.verify], usages),
  25                            true /* extractable */);
  26   this.privateKey = new Key(KeyType.private,
  27                             publicKeySpki,
  28                             algorithm,
  29                             intersect([KeyUsage.sign], usages),
  30                             false /* not extractable */);
  31 };
  32
  33 exports.KeyPair = utils.expose('KeyPair',
  34                                KeyPairImpl,
  35                                {readonly:['publicKey', 'privateKey']});