From 4563a11854fef1e032dbc479ea4f7ca4bdd4dd74 Mon Sep 17 00:00:00 2001
From: cloudwebrtc <duanweiwei1982@gmail.com>
Date: Tue, 9 Sep 2025 15:39:03 +0800
Subject: [PATCH] feat: Add data packet cryptor interface.

---
 CHANGELOG.md                     |  4 ++++
 lib/src/data_packet_cryptor.dart | 37 ++++++++++++++++++++++++++++++++
 lib/webrtc_interface.dart        |  1 +
 pubspec.yaml                     |  2 +-
 4 files changed, 43 insertions(+), 1 deletion(-)
 create mode 100644 lib/src/data_packet_cryptor.dart

diff --git a/CHANGELOG.md b/CHANGELOG.md
index f3a5a8f..70b1e33 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,10 @@
 # Changelog
 
 --------------------------------------------
+[1.3.0] - 2025-09-09
+
+* Data packet cryptor interface.
+
 [1.2.3] - 2025-04-29
 
 * Media recording changes (#31).
diff --git a/lib/src/data_packet_cryptor.dart b/lib/src/data_packet_cryptor.dart
new file mode 100644
index 0000000..95b6cbf
--- /dev/null
+++ b/lib/src/data_packet_cryptor.dart
@@ -0,0 +1,37 @@
+import 'dart:typed_data';
+
+import 'frame_cryptor.dart' show Algorithm, KeyProvider;
+
+class EncryptedPacket {
+  EncryptedPacket({
+    required this.data,
+    required this.keyIndex,
+    required this.iv,
+  });
+
+  Uint8List data;
+  int keyIndex;
+  Uint8List iv;
+}
+
+abstract class DataPacketCryptor {
+  Future<EncryptedPacket> encrypt({
+    required String participantId,
+    required int keyIndex,
+    required Uint8List data,
+  });
+
+  Future<Uint8List> decrypt({
+    required String participantId,
+    required EncryptedPacket encryptedPacket,
+  });
+
+  Future<void> dispose();
+}
+
+abstract class DataPacketCryptorFactory {
+  Future<DataPacketCryptor> createDataPacketCryptor({
+    required Algorithm algorithm,
+    required KeyProvider keyProvider,
+  });
+}
diff --git a/lib/webrtc_interface.dart b/lib/webrtc_interface.dart
index 0f90fca..91985cd 100644
--- a/lib/webrtc_interface.dart
+++ b/lib/webrtc_interface.dart
@@ -1,5 +1,6 @@
 library webrtc_interface;
 
+export 'src/data_packet_cryptor.dart';
 export 'src/enums.dart';
 export 'src/factory.dart';
 export 'src/frame_cryptor.dart';
diff --git a/pubspec.yaml b/pubspec.yaml
index ced39c5..9de4454 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: webrtc_interface
 description: WebRTC Interface for Dart-Web/Flutter.
-version: 1.2.3
+version: 1.3.0
 homepage: https://flutter-webrtc.org
 
 environment: