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Code Issues Releases Wiki Activity

[WO-237] integrate web worker support for pgp

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This commit is contained in:
Tankred Hase 2014-02-12 19:48:29 +01:00
parent 6ec7040a2e
commit 1da5c68fd1
7 changed files with 232 additions and 66 deletions
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31
package.json
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@ -17,21 +17,20 @@
},
"devDependencies": {
"angular": "https://github.com/angular/angular.js/tarball/v1.2.8",
"grunt": "0.4.1",
"mocha": "1.13.0",
"phantomjs": "1.9.1-9",
"chai": "1.7.2",
"sinon": "1.7.3",
"grunt-contrib-connect": "0.5.0",
"grunt-contrib-jshint": "0.6.4",
"grunt-contrib-qunit": "0.2.2",
"grunt-mocha": "0.4.1",
"grunt-contrib-clean": "0.5.0",
"grunt-csso": "0.5.0",
"grunt-contrib-sass": "0.5.0",
"grunt-autoprefixer": "0.3.0",
"grunt-contrib-watch": "0.5.3",
"grunt-contrib-copy": "0.4.1",
"grunt-contrib-compress": "0.5.2"
"grunt": "~0.4.1",
"mocha": "~1.13.0",
"chai": "~1.7.2",
"sinon": "~1.7.3",
"grunt-contrib-connect": "~0.5.0",
"grunt-contrib-jshint": "~0.6.4",
"grunt-contrib-qunit": "~0.2.2",
"grunt-mocha": "~0.4.1",
"grunt-contrib-clean": "~0.5.0",
"grunt-csso": "~0.5.0",
"grunt-contrib-sass": "~0.5.0",
"grunt-autoprefixer": "~0.3.0",
"grunt-contrib-watch": "~0.5.3",
"grunt-contrib-copy": "~0.4.1",
"grunt-contrib-compress": "~0.5.2"
}
}

90
src/js/crypto/pgp.js
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@ -5,15 +5,18 @@ define(function(require) {
'use strict';
var openpgp = require('openpgp'),
util = require('openpgp').util;
util = require('openpgp').util,
config = require('js/app-config').config;
var PGP = function() {};
var PGP = function() {
openpgp.initWorker(config.workerPath + '/../lib/openpgp/openpgp.worker.js');
};
/**
* Generate a key pair for the user
*/
PGP.prototype.generateKeys = function(options, callback) {
var keys, userId;
var userId;
if (!util.emailRegEx.test(options.emailAddress) || !options.keySize || typeof options.passphrase !== 'string') {
callback({
@ -23,22 +26,24 @@ define(function(require) {
}
// generate keypair (keytype 1=RSA)
try {
userId = 'Whiteout User <' + options.emailAddress + '>';
keys = openpgp.generateKeyPair(1, options.keySize, userId, options.passphrase);
} catch (e) {
callback({
errMsg: 'Keygeneration failed!',
err: e
});
return;
}
userId = 'Whiteout User <' + options.emailAddress + '>';
openpgp.generateKeyPair(1, options.keySize, userId, options.passphrase, onGenerated);
callback(null, {
keyId: keys.key.getKeyPacket().getKeyId().toHex().toUpperCase(),
privateKeyArmored: keys.privateKeyArmored,
publicKeyArmored: keys.publicKeyArmored
});
function onGenerated(err, keys) {
if (err) {
callback({
errMsg: 'Keygeneration failed!',
err: err
});
return;
}
callback(null, {
keyId: keys.key.getKeyPacket().getKeyId().toHex().toUpperCase(),
privateKeyArmored: keys.privateKeyArmored,
publicKeyArmored: keys.publicKeyArmored
});
}
};
/**
@ -160,7 +165,7 @@ define(function(require) {
* Encrypt and sign a pgp message for a list of receivers
*/
PGP.prototype.encrypt = function(plaintext, publicKeysArmored, callback) {
var ciphertext, publicKeys = [];
var publicKeys = [];
// check keys
if (!this._privateKey || publicKeysArmored.length < 1) {
@ -170,13 +175,11 @@ define(function(require) {
return;
}
// parse armored public keys
try {
// parse armored public keys
publicKeysArmored.forEach(function(pubkeyArmored) {
publicKeys.push(openpgp.key.readArmored(pubkeyArmored).keys[0]);
});
// encrypt and sign the plaintext
ciphertext = openpgp.signAndEncryptMessage(publicKeys, this._privateKey, plaintext);
} catch (err) {
callback({
errMsg: 'Error encrypting plaintext!',
@ -185,14 +188,15 @@ define(function(require) {
return;
}
callback(null, ciphertext);
// encrypt and sign the plaintext
openpgp.signAndEncryptMessage(publicKeys, this._privateKey, plaintext, callback);
};
/**
* Decrypt and verify a pgp message for a single sender
*/
PGP.prototype.decrypt = function(ciphertext, publicKeyArmored, callback) {
var publicKey, message, decrypted, signaturesValid;
var publicKey, message, signaturesValid;
// check keys
if (!this._privateKey || !publicKeyArmored) {
@ -202,11 +206,10 @@ define(function(require) {
return;
}
// decrypt and verify pgp message
// read keys and ciphertext message
try {
publicKey = openpgp.key.readArmored(publicKeyArmored).keys[0];
message = openpgp.message.readArmored(ciphertext);
decrypted = openpgp.decryptAndVerifyMessage(this._privateKey, [publicKey], message);
} catch (err) {
callback({
errMsg: 'Error decrypting PGP message!',
@ -215,22 +218,27 @@ define(function(require) {
return;
}
// check if signatures are valid
signaturesValid = true;
decrypted.signatures.forEach(function(sig) {
if (!sig.valid) {
signaturesValid = false;
}
});
if (!signaturesValid) {
callback({
errMsg: 'Verifying PGP signature failed!'
});
return;
}
// decrypt and verify pgp message
openpgp.decryptAndVerifyMessage(this._privateKey, [publicKey], message, onDecrypted);
// return decrypted plaintext
callback(null, decrypted.text);
function onDecrypted(err, decrypted) {
// check if signatures are valid
signaturesValid = true;
decrypted.signatures.forEach(function(sig) {
if (!sig.valid) {
signaturesValid = false;
}
});
if (!signaturesValid) {
callback({
errMsg: 'Verifying PGP signature failed!'
});
return;
}
// return decrypted plaintext
callback(null, decrypted.text);
}
};
return PGP;

10
src/lib/openpgp/openpgp.min.js vendored
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File diff suppressed because one or more lines are too long

157
src/lib/openpgp/openpgp.worker.js Normal file
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@ -0,0 +1,157 @@
;(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
// GPG4Browsers - An OpenPGP implementation in javascript
// Copyright (C) 2011 Recurity Labs GmbH
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
window = {}; // to make UMD bundles work
importScripts('openpgp.min.js');
var MIN_SIZE_RANDOM_BUFFER = 40000;
var MAX_SIZE_RANDOM_BUFFER = 60000;
window.openpgp.crypto.random.randomBuffer.init(MAX_SIZE_RANDOM_BUFFER);
onmessage = function (event) {
var data = null,
err = null,
msg = event.data,
correct = false;
switch (msg.event) {
case 'seed-random':
window.openpgp.crypto.random.randomBuffer.set(msg.buf);
break;
case 'encrypt-message':
try {
msg.keys = msg.keys.map(packetlistCloneToKey);
data = window.openpgp.encryptMessage(msg.keys, msg.text);
} catch (e) {
err = e.message;
}
response({event: 'method-return', data: data, err: err});
break;
case 'sign-and-encrypt-message':
try {
msg.publicKeys = msg.publicKeys.map(packetlistCloneToKey);
msg.privateKey = packetlistCloneToKey(msg.privateKey);
data = window.openpgp.signAndEncryptMessage(msg.publicKeys, msg.privateKey, msg.text);
} catch (e) {
err = e.message;
}
response({event: 'method-return', data: data, err: err});
break;
case 'decrypt-message':
try {
msg.privateKey = packetlistCloneToKey(msg.privateKey);
msg.message = packetlistCloneToMessage(msg.message.packets);
data = window.openpgp.decryptMessage(msg.privateKey, msg.message);
} catch (e) {
err = e.message;
}
response({event: 'method-return', data: data, err: err});
break;
case 'decrypt-and-verify-message':
try {
msg.privateKey = packetlistCloneToKey(msg.privateKey);
msg.publicKeys = msg.publicKeys.map(packetlistCloneToKey);
msg.message = packetlistCloneToMessage(msg.message.packets);
data = window.openpgp.decryptAndVerifyMessage(msg.privateKey, msg.publicKeys, msg.message);
} catch (e) {
err = e.message;
}
response({event: 'method-return', data: data, err: err});
break;
case 'sign-clear-message':
try {
msg.privateKeys = msg.privateKeys.map(packetlistCloneToKey);
data = window.openpgp.signClearMessage(msg.privateKeys, msg.text);
} catch (e) {
err = e.message;
}
response({event: 'method-return', data: data, err: err});
break;
case 'verify-clear-signed-message':
try {
msg.publicKeys = msg.publicKeys.map(packetlistCloneToKey);
var packetlist = window.openpgp.packet.List.fromStructuredClone(msg.message.packets);
msg.message = new window.openpgp.cleartext.CleartextMessage(msg.message.text, packetlist);
data = window.openpgp.verifyClearSignedMessage(msg.publicKeys, msg.message);
} catch (e) {
err = e.message;
}
response({event: 'method-return', data: data, err: err});
break;
case 'generate-key-pair':
try {
data = window.openpgp.generateKeyPair(msg.keyType, msg.numBits, msg.userId, msg.passphrase);
data.key = data.key.toPacketlist();
} catch (e) {
err = e.message;
}
response({event: 'method-return', data: data, err: err});
break;
case 'decrypt-key':
try {
msg.privateKey = packetlistCloneToKey(msg.privateKey);
correct = msg.privateKey.decrypt(msg.password);
if (correct) {
data = msg.privateKey.toPacketlist();
} else {
err = 'Wrong password';
}
} catch (e) {
err = e.message;
}
response({event: 'method-return', data: data, err: err});
break;
case 'decrypt-key-packet':
try {
msg.privateKey = packetlistCloneToKey(msg.privateKey);
msg.keyIds = msg.keyIds.map(window.openpgp.Keyid.fromClone);
correct = msg.privateKey.decryptKeyPacket(msg.keyIds, msg.password);
if (correct) {
data = msg.privateKey.toPacketlist();
} else {
err = 'Wrong password';
}
} catch (e) {
err = e.message;
}
response({event: 'method-return', data: data, err: err});
break;
default:
throw new Error('Unknown Worker Event.');
}
};
function response(event) {
if (window.openpgp.crypto.random.randomBuffer.size < MIN_SIZE_RANDOM_BUFFER) {
postMessage({event: 'request-seed'});
}
postMessage(event);
}
function packetlistCloneToKey(packetlistClone) {
var packetlist = window.openpgp.packet.List.fromStructuredClone(packetlistClone);
return new window.openpgp.key.Key(packetlist);
}
function packetlistCloneToMessage(packetlistClone) {
var packetlist = window.openpgp.packet.List.fromStructuredClone(packetlistClone);
return new window.openpgp.message.Message(packetlist);
}
},{}]},{},[1])
;

2
test/new-unit/main.js
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@ -17,7 +17,7 @@ require(['../../src/require-config'], function() {
// Start the main app logic.
require(['js/app-config'], function(app) {
window.Worker = undefined; // disable web workers since mocha doesn't support them
//window.Worker = undefined; // disable web workers since mocha doesn't support them
app.config.workerPath = '../../src/js';

6
test/new-unit/pgp-test.js
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@ -5,13 +5,15 @@ define(function(require) {
expect = chai.expect;
describe('PGP Crypto Api unit tests', function() {
this.timeout(10000);
var pgp,
user = 'whiteout.test@t-online.de',
passphrase = 'asdf',
keySize = 512,
keyId = 'F6F60E9B42CDFF4C',
pubkey = '-----BEGIN PGP PUBLIC KEY BLOCK-----\r\n' +
'Version: OpenPGP.js v0.3.0\r\n' +
'Version: OpenPGP.js v0.4.0\r\n' +
'Comment: http://openpgpjs.org\r\n' +
'\r\n' +
'xk0EUlhMvAEB/2MZtCUOAYvyLFjDp3OBMGn3Ev8FwjzyPbIF0JUw+L7y2XR5\r\n' +
@ -22,7 +24,7 @@ define(function(require) {
'=6XMW\r\n' +
'-----END PGP PUBLIC KEY BLOCK-----\r\n\r\n',
privkey = '-----BEGIN PGP PRIVATE KEY BLOCK-----\r\n' +
'Version: OpenPGP.js v0.3.0\r\n' +
'Version: OpenPGP.js v0.4.0\r\n' +
'Comment: http://openpgpjs.org\r\n' +
'\r\n' +
'xcBeBFJYTLwBAf9jGbQlDgGL8ixYw6dzgTBp9xL/BcI88j2yBdCVMPi+8tl0\r\n' +

2
test/unit/main.js
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@ -10,7 +10,7 @@ require(['../../src/require-config'], function() {
require(['js/app-config', 'cordova'], function(app) {
// clear session storage of failed tests, so async order is correct after fail & refresh
window.sessionStorage.clear();
window.Worker = undefined;
//window.Worker = undefined;
app.config.workerPath = '../../src/js';