diff --git a/src/e2ee/e2eeType.ts b/src/e2ee/e2eeType.ts
new file mode 100644
index 00000000..be4a4ba9
--- /dev/null
+++ b/src/e2ee/e2eeType.ts
@@ -0,0 +1,21 @@
+/*
+Copyright 2023 New Vector Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+export enum E2eeType {
+  NONE = 0,
+  PER_PARTICIPANT = 1,
+  SHARED_KEY = 2,
+}