diff --git a/synapse/storage/e2e_room_keys.py b/synapse/storage/e2e_room_keys.py
new file mode 100644
index 0000000000..9f6d47e1b6
--- /dev/null
+++ b/synapse/storage/e2e_room_keys.py
@@ -0,0 +1,133 @@
+# -*- coding: utf-8 -*-
+# Copyright 2017 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.
+from twisted.internet import defer
+
+from synapse.util.caches.descriptors import cached
+
+from canonicaljson import encode_canonical_json
+import ujson as json
+
+from ._base import SQLBaseStore
+
+
+class EndToEndRoomKeyStore(SQLBaseStore):
+
+ @defer.inlineCallbacks
+ def get_e2e_room_key(self, user_id, version, room_id, session_id):
+
+ row = yield self._simple_select_one(
+ table="e2e_room_keys",
+ keyvalues={
+ "user_id": user_id,
+ "version": version,
+ "room_id": room_id,
+ "session_id": session_id,
+ },
+ retcols=(
+ "first_message_index",
+ "forwarded_count",
+ "is_verified",
+ "session_data",
+ ),
+ desc="get_e2e_room_key",
+ )
+
+ defer.returnValue(row);
+
+ def set_e2e_room_key(self, user_id, version, room_id, session_id, room_key):
+
+ def _set_e2e_room_key_txn(txn):
+
+ self._simple_upsert(
+ txn,
+ table="e2e_room_keys",
+ keyvalues={
+ "user_id": user_id,
+ "room_id": room_id,
+ "session_id": session_id,
+ }
+ values=[
+ {
+ "version": version,
+ "first_message_index": room_key['first_message_index'],
+ "forwarded_count": room_key['forwarded_count'],
+ "is_verified": room_key['is_verified'],
+ "session_data": room_key['session_data'],
+ }
+ ],
+ lock=False,
+ )
+
+ return True
+
+ return self.runInteraction(
+ "set_e2e_room_key", _set_e2e_room_key_txn
+ )
+
+
+ def set_e2e_room_keys(self, user_id, version, room_keys):
+
+ def _set_e2e_room_keys_txn(txn):
+
+ self._simple_insert_many_txn(
+ txn,
+ table="e2e_room_keys",
+ values=[
+ {
+ "user_id": user_id,
+ "room_id": room_id,
+ "session_id": session_id,
+ "version": version,
+ "first_message_index": room_keys['rooms'][room_id]['sessions'][session_id]['first_message_index'],
+ "forwarded_count": room_keys['rooms'][room_id]['sessions'][session_id]['forwarded_count'],
+ "is_verified": room_keys['rooms'][room_id]['sessions'][session_id]['is_verified'],
+ "session_data": room_keys['rooms'][room_id]['sessions'][session_id]['session_data'],
+ }
+ for session_id in room_keys['rooms'][room_id]['sessions']
+ for room_id in room_keys['rooms']
+ ]
+ )
+
+ return True
+
+ return self.runInteraction(
+ "set_e2e_room_keys", _set_e2e_room_keys_txn
+ )
+
+ @defer.inlineCallbacks
+ def get_e2e_room_keys(self, user_id, version, room_id, session_id):
+
+ keyvalues={
+ "user_id": user_id,
+ "version": version,
+ }
+ if room_id: keyvalues['room_id'] = room_id
+ if session_id: keyvalues['session_id'] = session_id
+
+ rows = yield self._simple_select_list(
+ table="e2e_room_keys",
+ keyvalues=keyvalues,
+ retcols=(
+ "first_message_index",
+ "forwarded_count",
+ "is_verified",
+ "session_data",
+ ),
+ desc="get_e2e_room_keys",
+ )
+
+ sessions = {}
+ sessions['rooms'][roomId]['sessions'][session_id] = row for row in rows;
+ defer.returnValue(sessions);
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