diff --git a/synapse/rest/key/v2/__init__.py b/synapse/rest/key/v2/__init__.py
new file mode 100644
index 0000000000..b79ed02590
--- /dev/null
+++ b/synapse/rest/key/v2/__init__.py
@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+# Copyright 2015 OpenMarket 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 .local_key_resource import LocalKey
+
+class KeyApiV2Resource(LocalKey):
+ pass
diff --git a/synapse/rest/key/v2/local_key_resource.py b/synapse/rest/key/v2/local_key_resource.py
new file mode 100644
index 0000000000..5c77f308df
--- /dev/null
+++ b/synapse/rest/key/v2/local_key_resource.py
@@ -0,0 +1,118 @@
+# -*- coding: utf-8 -*-
+# Copyright 2014, 2015 OpenMarket 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.web.resource import Resource
+from synapse.http.server import respond_with_json_bytes
+from syutil.crypto.jsonsign import sign_json
+from syutil.base64util import encode_base64
+from syutil.jsonutil import encode_canonical_json
+from OpenSSL import crypto
+import logging
+
+
+logger = logging.getLogger(__name__)
+
+
+class LocalKey(Resource):
+ """HTTP resource containing encoding the TLS X.509 certificate and NACL
+ signature verification keys for this server::
+
+ GET /_matrix/key/v2/ HTTP/1.1
+
+ HTTP/1.1 200 OK
+ Content-Type: application/json
+ {
+ "expires": # integer posix timestamp when this result expires.
+ "server_name": "this.server.example.com"
+ "verify_keys": {
+ "algorithm:version": # base64 encoded NACL verification key.
+ },
+ "old_verify_keys": {
+ "algorithm:version": {
+ "expired": # integer posix timestamp when the key expired.
+ "key": # base64 encoded NACL verification key.
+ }
+ }
+ "tls_certificate": # base64 ASN.1 DER encoded X.509 tls cert.
+ "signatures": {
+ "this.server.example.com": {
+ "algorithm:version": # NACL signature for this server
+ }
+ }
+ }
+ """
+
+ def __init__(self, hs):
+ self.version_string = hs.version_string
+ self.config = hs.config
+ self.clock = hs.clock
+ self.update_response_body(self.clock.time_msec())
+ Resource.__init__(self)
+
+ def update_response_body(self, time_now_msec):
+ refresh_interval = self.config.key_refresh_interval
+ self.expires = int(time_now_msec + refresh_interval)
+ self.response_body = encode_canonical_json(self.response_json_object())
+
+
+ def response_json_object(self):
+ verify_keys = {}
+ for key in self.config.signing_key:
+ verify_key_bytes = key.verify_key.encode()
+ key_id = "%s:%s" % (key.alg, key.version)
+ verify_keys[key_id] = encode_base64(verify_key_bytes)
+
+ old_verify_keys = {}
+ for key in self.config.old_signing_keys:
+ key_id = "%s:%s" % (key.alg, key.version)
+ verify_key_bytes = key.encode()
+ old_verify_keys[key_id] = {
+ u"key": encode_base64(verify_key_bytes),
+ u"expired": key.expired,
+ }
+
+ x509_certificate_bytes = crypto.dump_certificate(
+ crypto.FILETYPE_ASN1,
+ self.config.tls_certificate
+ )
+ json_object = {
+ u"expires": self.expires,
+ u"server_name": self.config.server_name,
+ u"verify_keys": verify_keys,
+ u"old_verify_keys": old_verify_keys,
+ u"tls_certificate": encode_base64(x509_certificate_bytes)
+ }
+ for key in self.config.signing_key:
+ json_object = sign_json(
+ json_object,
+ self.config.server_name,
+ key,
+ )
+ return json_object
+
+ def render_GET(self, request):
+ time_now = self.clock.time_msec()
+ # Update the expiry time if less than half the interval remains.
+ if time_now + self.config.key_refresh_interval / 2 > self.expires:
+ self.update_response_body()
+ return respond_with_json_bytes(
+ request, 200, self.response_body,
+ version_string=self.version_string
+ )
+
+ def getChild(self, name, request):
+ if name == '':
+ return self
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