зеркало из https://github.com/mozilla/gecko-dev.git
130 строки
3.6 KiB
JavaScript
130 строки
3.6 KiB
JavaScript
/* -*- Mode: js2; js2-basic-offset: 2; indent-tabs-mode: nil; -*- */
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/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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const Cu = Components.utils;
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const Ci = Components.interfaces;
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const Cc = Components.classes;
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const Cr = Components.results;
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/identity/LogUtils.jsm");
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XPCOMUtils.defineLazyServiceGetter(this,
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"IdentityCryptoService",
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"@mozilla.org/identity/crypto-service;1",
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"nsIIdentityCryptoService");
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const EXPORTED_SYMBOLS = ["jwcrypto"];
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const ALGORITHMS = { RS256: "RS256", DS160: "DS160" };
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function log(...aMessageArgs) {
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Logger.log.apply(Logger, ["jwcrypto"].concat(aMessageArgs));
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}
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function generateKeyPair(aAlgorithmName, aCallback) {
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log("Generate key pair; alg =", aAlgorithmName);
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IdentityCryptoService.generateKeyPair(aAlgorithmName, function(rv, aKeyPair) {
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if (!Components.isSuccessCode(rv)) {
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return aCallback("key generation failed");
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}
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var publicKey;
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switch (aKeyPair.keyType) {
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case ALGORITHMS.RS256:
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publicKey = {
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algorithm: "RS",
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exponent: aKeyPair.hexRSAPublicKeyExponent,
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modulus: aKeyPair.hexRSAPublicKeyModulus
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};
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break;
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case ALGORITHMS.DS160:
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publicKey = {
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algorithm: "DS",
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y: aKeyPair.hexDSAPublicValue,
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p: aKeyPair.hexDSAPrime,
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q: aKeyPair.hexDSASubPrime,
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g: aKeyPair.hexDSAGenerator
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};
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break;
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default:
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return aCallback("unknown key type");
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}
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let keyWrapper = {
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serializedPublicKey: JSON.stringify(publicKey),
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_kp: aKeyPair
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};
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return aCallback(null, keyWrapper);
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});
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}
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function sign(aPayload, aKeypair, aCallback) {
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aKeypair._kp.sign(aPayload, function(rv, signature) {
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if (!Components.isSuccessCode(rv)) {
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log("ERROR: signer.sign failed");
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return aCallback("Sign failed");
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}
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log("signer.sign: success");
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return aCallback(null, signature);
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});
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}
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function jwcryptoClass()
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{
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}
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jwcryptoClass.prototype = {
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isCertValid: function(aCert, aCallback) {
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// XXX check expiration, bug 769850
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aCallback(true);
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},
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generateKeyPair: function(aAlgorithmName, aCallback) {
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log("generating");
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generateKeyPair(aAlgorithmName, aCallback);
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},
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generateAssertion: function(aCert, aKeyPair, aAudience, aCallback) {
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// for now, we hack the algorithm name
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// XXX bug 769851
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var header = {"alg": "DS128"};
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var headerBytes = IdentityCryptoService.base64UrlEncode(
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JSON.stringify(header));
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var payload = {
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// expires in 2 minutes
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// XXX clock skew needs exploration bug 769852
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exp: Date.now() + (2 * 60 * 1000),
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aud: aAudience
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};
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var payloadBytes = IdentityCryptoService.base64UrlEncode(
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JSON.stringify(payload));
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log("payload bytes", payload, payloadBytes);
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sign(headerBytes + "." + payloadBytes, aKeyPair, function(err, signature) {
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if (err)
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return aCallback(err);
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var signedAssertion = headerBytes + "." + payloadBytes + "." + signature;
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return aCallback(null, aCert + "~" + signedAssertion);
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});
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}
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};
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var jwcrypto = new jwcryptoClass();
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jwcrypto.ALGORITHMS = ALGORITHMS;
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