70 lines
2.1 KiB
Dart
70 lines
2.1 KiB
Dart
import 'dart:convert';
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import 'package:omemo_dart/omemo_dart.dart';
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import 'package:test/test.dart';
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void main() {
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test('Test using OMEMO sessions with only one device per user', () async {
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const aliceJid = 'alice@server.example';
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const bobJid = 'bob@other.server.example';
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// Alice and Bob generate their sessions
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final aliceSession = await OmemoSessionManager.generateNewIdentity(opkAmount: 1);
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final bobSession = await OmemoSessionManager.generateNewIdentity(opkAmount: 1);
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// Perform the X3DH
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final x3dhAliceResult = await x3dhFromBundle(
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await bobSession.device.toBundle(),
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aliceSession.device.ik,
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);
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final x3dhBobResult = await x3dhFromInitialMessage(
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X3DHMessage(
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aliceSession.device.ik.pk,
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x3dhAliceResult.ek.pk,
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'2',
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),
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bobSession.device.spk,
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bobSession.device.opks.values.elementAt(0),
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bobSession.device.ik,
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);
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// Build the ratchets
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final aliceRatchet = await OmemoDoubleRatchet.initiateNewSession(
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bobSession.device.spk.pk,
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x3dhAliceResult.sk,
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x3dhAliceResult.ad,
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);
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final bobRatchet = await OmemoDoubleRatchet.acceptNewSession(
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bobSession.device.spk,
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x3dhBobResult.sk,
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x3dhBobResult.ad,
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);
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// Add the ratchets to the session managers
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await aliceSession.addSession(bobJid, bobSession.device.id, aliceRatchet);
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await bobSession.addSession(aliceJid, aliceSession.device.id, bobRatchet);
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// Alice encrypts a message for Bob
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const messagePlaintext = 'Hello Bob!';
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final aliceMessage = await aliceSession.encryptToJid(bobJid, messagePlaintext);
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expect(aliceMessage.encryptedKeys.length, 1);
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// Alice sends the message to Bob
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// ...
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// Bob decrypts it
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final bobMessage = await bobSession.decryptMessage(
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aliceMessage.ciphertext,
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aliceJid,
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aliceSession.device.id,
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[
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EncryptedKey(
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bobSession.device.id,
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base64.encode(aliceMessage.encryptedKeys[bobSession.device.id]!),
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),
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],
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);
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expect(messagePlaintext, bobMessage);
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});
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}
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