| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| var utils = require('utils'); |
| |
| /** |
| * Enum of possible key types (subset of WebCrypto.KeyType). |
| * @enum {string} |
| */ |
| var KeyType = { |
| public: 'public', |
| private: 'private' |
| }; |
| |
| /** |
| * Enum of possible key usages (subset of WebCrypto.KeyUsage). |
| * @enum {string} |
| */ |
| var KeyUsage = { |
| sign: 'sign', |
| verify: 'verify' |
| }; |
| |
| /** |
| * Implementation of WebCrypto.Key used in enterprise.platformKeys. |
| * @param {KeyType} type The type of the new key. |
| * @param {ArrayBuffer} publicKeySpki The Subject Public Key Info in DER |
| * encoding. |
| * @param {KeyAlgorithm} algorithm The algorithm identifier. |
| * @param {KeyUsage[]} usages The allowed key usages. |
| * @param {boolean} extractable Whether the key is extractable. |
| * @constructor |
| */ |
| var KeyImpl = function(type, publicKeySpki, algorithm, usages, extractable) { |
| this.type = type; |
| this.spki = publicKeySpki; |
| this.algorithm = algorithm; |
| this.usages = usages; |
| this.extractable = extractable; |
| }; |
| |
| var KeyBase = function() {}; |
| |
| Object.defineProperty(KeyBase.prototype, 'algorithm', { |
| enumerable: true, |
| get: function() { |
| return utils.deepCopy(privates(this).impl.algorithm); |
| } |
| }); |
| |
| var Key = utils.expose( |
| 'Key', |
| KeyImpl, |
| {superclass: KeyBase, readonly: ['extractable', 'type', 'usages']}); |
| |
| /** |
| * Returns |key|'s Subject Public Key Info. Throws an exception if |key| is not |
| * a valid Key object. |
| * @param {Key} key |
| * @return {ArrayBuffer} The Subject Public Key Info in DER encoding of |key|. |
| */ |
| function getSpki(key) { |
| if (!privates(key)) |
| throw new Error('Invalid key object.'); |
| var keyImpl = privates(key).impl; |
| if (!keyImpl || !keyImpl.spki) |
| throw new Error('Invalid key object.'); |
| return keyImpl.spki; |
| } |
| |
| exports.Key = Key; |
| exports.KeyType = KeyType; |
| exports.KeyUsage = KeyUsage; |
| exports.getSpki = getSpki; |