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Save sessions in deviceObjects, test using fake_api, minor tweaks

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This commit is contained in:
Matt Corallo 2014-05-31 13:28:46 -04:00
parent 1724d122d3
commit c2d1d816f2
5 changed files with 130 additions and 90 deletions
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59
js/crypto.js
View file

@ -143,14 +143,21 @@ window.textsecure.crypto = function() {
return this.getStoredKeyPair("identityKey").privKey;
}
crypto_storage.saveSession = function(encodedNumber, session) {
var sessions = textsecure.storage.getEncrypted("session" + encodedNumber);
if (sessions === undefined)
sessions = {};
crypto_storage.saveSession = function(encodedNumber, session, registrationId) {
var device = textsecure.storage.devices.getDeviceObject(encodedNumber);
if (device === undefined)
device = { sessions: {}, encodedNumber: encodedNumber };
if (device.sessions === undefined)
device.sessions = {};
if (registrationId !== undefined)
device.registrationId = registrationId;
var sessions = device.sessions;
var doDeleteSession = false;
if (session.indexInfo.closed == -1)
sessions.identityKey = session.indexInfo.remoteIdentityKey;
device.identityKey = session.indexInfo.remoteIdentityKey;
else {
doDeleteSession = (session.indexInfo.closed < (new Date().getTime() - MESSAGE_LOST_THRESHOLD_MS));
@ -171,26 +178,29 @@ window.textsecure.crypto = function() {
else
sessions[getString(session.indexInfo.baseKey)] = session;
textsecure.storage.putEncrypted("session" + encodedNumber, sessions);
textsecure.storage.devices.saveDeviceObject(device);
}
var getSessions = function(encodedNumber) {
var device = textsecure.storage.devices.getDeviceObject(encodedNumber);
if (device === undefined || device.sessions === undefined)
return undefined;
return device.sessions;
}
crypto_storage.getOpenSession = function(encodedNumber) {
var sessions = textsecure.storage.getEncrypted("session" + encodedNumber);
var sessions = getSessions(encodedNumber);
if (sessions === undefined)
return undefined;
for (key in sessions) {
if (key == "identityKey")
continue;
for (key in sessions)
if (sessions[key].indexInfo.closed == -1)
return sessions[key];
}
return undefined;
}
crypto_storage.getSessionByRemoteEphemeralKey = function(encodedNumber, remoteEphemeralKey) {
var sessions = textsecure.storage.getEncrypted("session" + encodedNumber);
var sessions = getSessions(encodedNumber);
if (sessions === undefined)
return undefined;
@ -198,9 +208,6 @@ window.textsecure.crypto = function() {
var openSession = undefined;
for (key in sessions) {
if (key == "identityKey")
continue;
if (sessions[key].indexInfo.closed == -1) {
if (openSession !== undefined)
throw new Error("Datastore inconsistensy: multiple open sessions for " + encodedNumber);
@ -215,20 +222,20 @@ window.textsecure.crypto = function() {
return undefined;
}
crypto_storage.getSessionOrIdentityKeyByBaseKey = function(encodedNumber, baseKey) {
var sessions = textsecure.storage.getEncrypted("session" + encodedNumber);
if (sessions === undefined)
var sessions = getSessions(encodedNumber);
var device = textsecure.storage.devices.getDeviceObject(encodedNumber);
if (device === undefined)
return undefined;
var preferredSession = sessions[getString(baseKey)];
var preferredSession = device.sessions && device.sessions[getString(baseKey)];
if (preferredSession !== undefined)
return preferredSession;
if (sessions.identityKey !== undefined)
return { indexInfo: { remoteIdentityKey: sessions.identityKey } };
if (device.identityKey !== undefined)
return { indexInfo: { remoteIdentityKey: device.identityKey } };
throw new Error("Datastore inconsistency: session was stored without identity key");
throw new Error("Datastore inconsistency: device was stored without identity key");
}
// Used when device keys change - we assume key compromise so refuse all new messages
@ -518,7 +525,7 @@ window.textsecure.crypto = function() {
}
// returns decrypted protobuf
var decryptWhisperMessage = function(encodedNumber, messageBytes, session) {
var decryptWhisperMessage = function(encodedNumber, messageBytes, session, registrationId) {
if (messageBytes[0] != String.fromCharCode((2 << 4) | 2))
throw new Error("Bad version number on WhisperMessage");
@ -554,7 +561,7 @@ window.textsecure.crypto = function() {
if ((finalMessage.flags & 1) == 1) // END_SESSION
closeSession(session);
crypto_storage.saveSession(encodedNumber, session);
crypto_storage.saveSession(encodedNumber, session, registrationId);
return finalMessage;
});
});
@ -613,7 +620,7 @@ window.textsecure.crypto = function() {
var from = proto.source + "." + (proto.sourceDevice == null ? 0 : proto.sourceDevice);
var preKeyProto = textsecure.protos.decodePreKeyWhisperMessageProtobuf(getString(proto.message));
return initSessionFromPreKeyWhisperMessage(from, preKeyProto).then(function(sessions) {
return decryptWhisperMessage(from, getString(preKeyProto.message), sessions[0]).then(function(result) {
return decryptWhisperMessage(from, getString(preKeyProto.message), sessions[0], preKeyProto.registrationId).then(function(result) {
if (sessions[1] !== undefined)
crypto_storage.saveSession(proto.source, sessions[1]);
return result;

50
js/fake_api.js
View file

@ -14,30 +14,28 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
//TODO: Redo this (API has changed to textsecure.api and changed)
var FakeWhisperAPI = function() {
var doAjax = function(param) {
if (param.success_callback) {
setTimeout(param.success_callback, 100, param.response);
}
var getKeysForNumberMap = {};
textsecure.api.getKeysForNumber = function(number) {
var res = getKeysForNumberMap[number];
if (res !== undefined) {
delete getKeysForNumberMap[number];
return Promise.resolve(res);
} else
throw new Error("getKeysForNumber of unknown/used number");
}
var messagesSentMap = {};
textsecure.api.sendMessages = function(destination, messageArray) {
for (i in messageArray) {
var msg = messageArray[i];
if ((msg.type != 1 && msg.type != 3) ||
msg.destinationDeviceId === undefined ||
msg.destinationRegistrationId === undefined ||
msg.body === undefined ||
msg.timestamp == undefined ||
msg.relay !== undefined)
throw new Error("Invalid message");
messagesSentMap[destination + "." + messageArray[i].destinationDeviceId] = msg;
}
this.getKeysForNumber = function(number, success_callback, error_callback) {
doAjax({ success_callback : success_callback,
response : [{ identityKey : 1,
deviceId : 1,
publicKey : 1,
keyId : 1 }]
});
}
this.sendMessages = function(jsonData, success_callback, error_callback) {
doAjax({ success_callback : success_callback,
response : { missingDeviceIds: [] }
});
}
};
FakeWhisperAPI.prototype = API;
API = new FakeWhisperAPI();
}

38
js/helpers.js
View file

@ -245,10 +245,9 @@ window.textsecure.utils = function() {
}
self.unencodeNumber = function(number) {
return number.split(".")[0];
return number.split(".");
}
/**************************
*** JSON'ing Utilities ***
**************************/
@ -337,13 +336,28 @@ window.textsecure.storage = function() {
var self = {};
self.saveDeviceObject = function(deviceObject) {
var number = textsecure.utils.unencodeNumber(deviceObject.encodedNumber);
if (deviceObject.identityKey === undefined || deviceObject.registrationId === undefined || deviceObject.encodedNumber === undefined)
throw new Error("Tried to store invalid deviceObject");
var number = textsecure.utils.unencodeNumber(deviceObject.encodedNumber)[0];
var map = textsecure.storage.getEncrypted("devices" + number);
if (map === undefined)
map = { devices: [deviceObject], identityKey: deviceObject.identityKey };
else if (map.identityKey != getString(deviceObject.identityKey))
throw new Error("Identity key changed");
else {
var updated = false;
for (i in map.devices) {
if (map.devices[i].encodedNumber == deviceObject.encodedNumber) {
map.devices[i] = deviceObject;
updated = true;
}
}
if (!updated)
map.devices.push(deviceObject);
}
textsecure.storage.putEncrypted("devices" + number, map);
}
@ -353,6 +367,19 @@ window.textsecure.storage = function() {
return map === undefined ? [] : map.devices;
}
self.getDeviceObject = function(encodedNumber) {
var number = textsecure.utils.unencodeNumber(encodedNumber);
var devices = self.getDeviceObjectsForNumber(number[0]);
if (devices === undefined)
return undefined;
for (i in devices)
if (devices[i].encodedNumber == encodedNumber)
return devices[i];
return undefined;
}
self.removeDeviceIdsForNumber = function(number, deviceIdsToRemove) {
var map = textsecure.storage.getEncrypted("devices" + number);
if (map === undefined)
@ -363,7 +390,7 @@ window.textsecure.storage = function() {
for (i in map.devices) {
var keep = true;
for (idToRemove in deviceIdsToRemove)
if (map.devices[i].deviceId == idToRemove)
if (map.devices[i].encodedNumber == number + "." + idToRemove)
keep = false;
if (keep)
@ -556,7 +583,8 @@ window.textsecure.sendMessage = function() {
return textsecure.crypto.encryptMessageFor(deviceObjectList[i], message).then(function(encryptedMsg) {
jsonData[i] = {
type: encryptedMsg.type,
destination: deviceObjectList[i].encodedNumber,
destination: number,
destinationDeviceId: textsecure.utils.unencodeNumber(deviceObjectList[i].encodedNumber)[1],
destinationRegistrationId: deviceObjectList[i].registrationId,
body: encryptedMsg.body,
timestamp: new Date().getTime()

70
js/test.js
View file

@ -213,10 +213,13 @@ textsecure.registerOnLoadFunction(function() {
ourBaseKey: hexToArrayBuffer('192b4892aa2e4cff1293999dc7c367874456c4d920aae7d9d42e5e62c965546c'),
ourEphemeralKey: hexToArrayBuffer('f12704787bab04a3cf544ebd9d421b6fe36147519eb5afa7c90e3fb67c141e64'),
ourIdentityKey: hexToArrayBuffer('a05fd14abb42ff393004eee526e3167441ee51021c6d801b784720c15637747c'),
theirPreKey: hexToArrayBuffer('05fee424a5b6ccb717d85ef2207e2057ab1144c40afe89cdc80e9c424dd90c146e'),
theirPreKeyId: 13845842,
registrationId: 11593,
theirIdentityKey: hexToArrayBuffer('05276e4df34557386f67df38b708eeddb1a8924e0428b9eefdc9213c3e8927cc7d'),
getKeys: [{deviceId: 0,
keyId: 13845842,
publicKey: hexToArrayBuffer('05fee424a5b6ccb717d85ef2207e2057ab1144c40afe89cdc80e9c424dd90c146e'),
identityKey: hexToArrayBuffer('05276e4df34557386f67df38b708eeddb1a8924e0428b9eefdc9213c3e8927cc7d'),
registrationId: 42}
],
//expectedPlaintext: hexToArrayBuffer('0a0e4120202020202020202020202020'),
//expectedCounter: 0,
expectedCiphertext: hexToArrayBuffer('2208d28acd061221059ab4e844771bfeb96382edac5f80e757a1109b5611c770b2ba9f28b363d7c2541a2105bd61aea7fa5304f4dc914892bc3795812cda8bb90b73de9920e22c609cf0ec4e2242220a21058c0c357a3a25e6da46b0186d93fec31d5b86a4ac4973742012d8e9de2346be161000180022104bd27ab87ee151d71cdfe89828050ef4b05bddfb56da491728c95a'),
@ -294,13 +297,13 @@ textsecure.registerOnLoadFunction(function() {
}],
];
var axolotlTestVectors = function(v, remoteDevice) {
var axolotlTestVectors = function(v, remoteNumber) {
var origCreateNewKeyPair = textsecure.crypto.testing_only.createNewKeyPair;
var doStep;
var stepDone;
stepDone = function(res) {
if (!res || privKeyQueue.length != 0) {
if (!res || privKeyQueue.length != 0 || Object.keys(getKeysForNumberMap).length != 0 || Object.keys(messagesSentMap).length != 0) {
textsecure.crypto.testing_only.createNewKeyPair = origCreateNewKeyPair;
return false;
} else if (step == v.length) {
@ -338,7 +341,7 @@ textsecure.registerOnLoadFunction(function() {
var message = new textsecure.protos.IncomingPushMessageProtobuf();
message.type = data.type;
message.source = textsecure.utils.unencodeNumber(remoteDevice.encodedNumber);
message.source = remoteNumber;
message.message = data.message;
return textsecure.crypto.handleIncomingPushMessageProto(textsecure.protos.decodeIncomingPushMessageProtobuf(getString(message.encode()))).then(function(res) {
return res.body == data.expectedSmsText;
@ -358,29 +361,34 @@ textsecure.registerOnLoadFunction(function() {
case "sendMessage":
var postLocalKeySetup = function() {
if (data.theirIdentityKey !== undefined)
remoteDevice.identityKey = data.theirIdentityKey;
if (data.theirPreKey !== undefined) {
remoteDevice.publicKey = data.theirPreKey;
remoteDevice.preKeyId = data.theirPreKeyId;
if (data.registrationId !== undefined)
textsecure.storage.putUnencrypted("registrationId", data.registrationId);
}
if (data.getKeys !== undefined)
getKeysForNumberMap[remoteNumber] = data.getKeys;
var message = new textsecure.protos.PushMessageContentProtobuf();
message.body = data.smsText;
return textsecure.crypto.encryptMessageFor(remoteDevice, message).then(function(res) {
//XXX: This should be all we do: stepDone(getString(data.expectedCiphertext) == getString(res.body));
if (res.type == 1) { //XXX: This should be used for everything...
var expectedString = getString(data.expectedCiphertext);
var decoded = textsecure.protos.decodeWhisperMessageProtobuf(expectedString.substring(1, expectedString.length - 8));
var result = getString(res.body);
return getString(decoded.encode()) == result.substring(1, result.length - 8);
} else {
var decoded = textsecure.protos.decodePreKeyWhisperMessageProtobuf(getString(data.expectedCiphertext).substr(1));
var result = getString(res.body).substring(1);
return getString(decoded.encode()) == result;
}
return new Promise(function(resolve) {
textsecure.sendMessage([remoteNumber], message, function(res) {
if (res.failure.length != 0 || res.success.length != 1 || res.success[0] != remoteNumber)
return resolve(false);
var msg = messagesSentMap[remoteNumber + "." + 0];
delete messagesSentMap[remoteNumber + "." + 0];
//XXX: This should be all we do: stepDone(getString(data.expectedCiphertext) == getString(res.body));
if (msg.type == 1) {
var expectedString = getString(data.expectedCiphertext);
var decoded = textsecure.protos.decodeWhisperMessageProtobuf(expectedString.substring(1, expectedString.length - 8));
var result = getString(msg.body);
resolve(getString(decoded.encode()) == result.substring(1, result.length - 8));
} else {
var decoded = textsecure.protos.decodePreKeyWhisperMessageProtobuf(getString(data.expectedCiphertext).substr(1));
var result = getString(msg.body).substring(1);
resolve(getString(decoded.encode()) == result);
}
});
});
}
@ -405,7 +413,7 @@ textsecure.registerOnLoadFunction(function() {
}
TEST(function() {
return axolotlTestVectors(axolotlTwoPartyTestVectorsAlice, { encodedNumber: "BOB.0" });
return axolotlTestVectors(axolotlTwoPartyTestVectorsAlice, "BOB");
}, "Standard Axolotl Test Vectors as Alice", true);
TEST(function() {
@ -414,11 +422,11 @@ textsecure.registerOnLoadFunction(function() {
axolotlTwoPartyTestVectorsAlice[2][1].newEphemeralKey = t.newEphemeralKey;
axolotlTwoPartyTestVectorsAlice[3][1] = t;
delete axolotlTwoPartyTestVectorsAlice[3][1]['newEphemeralKey'];
return axolotlTestVectors(axolotlTwoPartyTestVectorsAlice, { encodedNumber: "BOB.0" });
return axolotlTestVectors(axolotlTwoPartyTestVectorsAlice, "BOB");
}, "Shuffled Axolotl Test Vectors as Alice", true);
TEST(function() {
return axolotlTestVectors(axolotlTwoPartyTestVectorsBob, { encodedNumber: "ALICE.0" });
return axolotlTestVectors(axolotlTwoPartyTestVectorsBob, "ALICE");
}, "Standard Axolotl Test Vectors as Bob", true);
TEST(function() {
@ -440,7 +448,7 @@ textsecure.registerOnLoadFunction(function() {
v[0][1].newEphemeralKey = orig[0][1].newEphemeralKey;
v[1][1] = { message: orig[0][1].message, type: orig[0][1].type, expectedSmsText: orig[0][1].expectedSmsText };
return axolotlTestVectors(v, { encodedNumber: "ALICE.0" });
return axolotlTestVectors(v, "ALICE");
}, "Shuffled Axolotl Test Vectors as Bob I", true);
TEST(function() {
@ -457,7 +465,7 @@ textsecure.registerOnLoadFunction(function() {
v[1] = orig[2];
v[2] = orig[1];
return axolotlTestVectors(v, { encodedNumber: "ALICE.0" });
return axolotlTestVectors(v, "ALICE");
}, "Shuffled Axolotl Test Vectors as Bob II", true);
TEST(function() {
@ -476,7 +484,7 @@ textsecure.registerOnLoadFunction(function() {
v[2] = orig[3];
v[3] = orig[4];
return axolotlTestVectors(v, { encodedNumber: "ALICE.0" });
return axolotlTestVectors(v, "ALICE");
}, "Shuffled Axolotl Test Vectors as Bob III", true);
TEST(function() {
@ -506,7 +514,7 @@ textsecure.registerOnLoadFunction(function() {
v[2] = orig[3];
v[3] = orig[4];
return axolotlTestVectors(v, { encodedNumber: "ALICE.0" });
return axolotlTestVectors(v, "ALICE");
}, "Shuffled Axolotl Test Vectors as Bob IV", true);
TEST(function() {

3
test.html
View file

@ -43,8 +43,7 @@
<script type="text/javascript" src="js/crypto.js"></script>
<script type="text/javascript" src="js/helpers.js"></script>
<script type="text/javascript" src="js/api.js"></script>
<!-- TODO: Tests for api stuff -->
<!--<script type="text/javascript" src="js/fake_api.js"></script>-->
<script type="text/javascript" src="js/fake_api.js"></script>
<script type="text/javascript" src="js/test.js"></script>
</body>
</html>