506 lines
20 KiB
Python
506 lines
20 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2016 OpenMarket Ltd
|
|
# Copyright 2019 New Vector Ltd
|
|
# Copyright 2019 The Matrix.org Foundation C.I.C.
|
|
#
|
|
# 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.
|
|
|
|
import mock
|
|
|
|
import signedjson.key as key
|
|
import signedjson.sign as sign
|
|
|
|
from twisted.internet import defer
|
|
|
|
import synapse.handlers.e2e_keys
|
|
import synapse.storage
|
|
from synapse.api import errors
|
|
|
|
from tests import unittest, utils
|
|
|
|
|
|
class E2eKeysHandlerTestCase(unittest.TestCase):
|
|
def __init__(self, *args, **kwargs):
|
|
super(E2eKeysHandlerTestCase, self).__init__(*args, **kwargs)
|
|
self.hs = None # type: synapse.server.HomeServer
|
|
self.handler = None # type: synapse.handlers.e2e_keys.E2eKeysHandler
|
|
|
|
@defer.inlineCallbacks
|
|
def setUp(self):
|
|
self.hs = yield utils.setup_test_homeserver(
|
|
self.addCleanup, handlers=None, federation_client=mock.Mock()
|
|
)
|
|
self.handler = synapse.handlers.e2e_keys.E2eKeysHandler(self.hs)
|
|
|
|
@defer.inlineCallbacks
|
|
def test_query_local_devices_no_devices(self):
|
|
"""If the user has no devices, we expect an empty list.
|
|
"""
|
|
local_user = "@boris:" + self.hs.hostname
|
|
res = yield self.handler.query_local_devices({local_user: None})
|
|
self.assertDictEqual(res, {local_user: {}})
|
|
|
|
@defer.inlineCallbacks
|
|
def test_reupload_one_time_keys(self):
|
|
"""we should be able to re-upload the same keys"""
|
|
local_user = "@boris:" + self.hs.hostname
|
|
device_id = "xyz"
|
|
keys = {
|
|
"alg1:k1": "key1",
|
|
"alg2:k2": {"key": "key2", "signatures": {"k1": "sig1"}},
|
|
"alg2:k3": {"key": "key3"},
|
|
}
|
|
|
|
res = yield self.handler.upload_keys_for_user(
|
|
local_user, device_id, {"one_time_keys": keys}
|
|
)
|
|
self.assertDictEqual(res, {"one_time_key_counts": {"alg1": 1, "alg2": 2}})
|
|
|
|
# we should be able to change the signature without a problem
|
|
keys["alg2:k2"]["signatures"]["k1"] = "sig2"
|
|
res = yield self.handler.upload_keys_for_user(
|
|
local_user, device_id, {"one_time_keys": keys}
|
|
)
|
|
self.assertDictEqual(res, {"one_time_key_counts": {"alg1": 1, "alg2": 2}})
|
|
|
|
@defer.inlineCallbacks
|
|
def test_change_one_time_keys(self):
|
|
"""attempts to change one-time-keys should be rejected"""
|
|
|
|
local_user = "@boris:" + self.hs.hostname
|
|
device_id = "xyz"
|
|
keys = {
|
|
"alg1:k1": "key1",
|
|
"alg2:k2": {"key": "key2", "signatures": {"k1": "sig1"}},
|
|
"alg2:k3": {"key": "key3"},
|
|
}
|
|
|
|
res = yield self.handler.upload_keys_for_user(
|
|
local_user, device_id, {"one_time_keys": keys}
|
|
)
|
|
self.assertDictEqual(res, {"one_time_key_counts": {"alg1": 1, "alg2": 2}})
|
|
|
|
try:
|
|
yield self.handler.upload_keys_for_user(
|
|
local_user, device_id, {"one_time_keys": {"alg1:k1": "key2"}}
|
|
)
|
|
self.fail("No error when changing string key")
|
|
except errors.SynapseError:
|
|
pass
|
|
|
|
try:
|
|
yield self.handler.upload_keys_for_user(
|
|
local_user, device_id, {"one_time_keys": {"alg2:k3": "key2"}}
|
|
)
|
|
self.fail("No error when replacing dict key with string")
|
|
except errors.SynapseError:
|
|
pass
|
|
|
|
try:
|
|
yield self.handler.upload_keys_for_user(
|
|
local_user, device_id, {"one_time_keys": {"alg1:k1": {"key": "key"}}}
|
|
)
|
|
self.fail("No error when replacing string key with dict")
|
|
except errors.SynapseError:
|
|
pass
|
|
|
|
try:
|
|
yield self.handler.upload_keys_for_user(
|
|
local_user,
|
|
device_id,
|
|
{
|
|
"one_time_keys": {
|
|
"alg2:k2": {"key": "key3", "signatures": {"k1": "sig1"}}
|
|
}
|
|
},
|
|
)
|
|
self.fail("No error when replacing dict key")
|
|
except errors.SynapseError:
|
|
pass
|
|
|
|
@defer.inlineCallbacks
|
|
def test_claim_one_time_key(self):
|
|
local_user = "@boris:" + self.hs.hostname
|
|
device_id = "xyz"
|
|
keys = {"alg1:k1": "key1"}
|
|
|
|
res = yield self.handler.upload_keys_for_user(
|
|
local_user, device_id, {"one_time_keys": keys}
|
|
)
|
|
self.assertDictEqual(res, {"one_time_key_counts": {"alg1": 1}})
|
|
|
|
res2 = yield self.handler.claim_one_time_keys(
|
|
{"one_time_keys": {local_user: {device_id: "alg1"}}}, timeout=None
|
|
)
|
|
self.assertEqual(
|
|
res2,
|
|
{
|
|
"failures": {},
|
|
"one_time_keys": {local_user: {device_id: {"alg1:k1": "key1"}}},
|
|
},
|
|
)
|
|
|
|
@defer.inlineCallbacks
|
|
def test_replace_master_key(self):
|
|
"""uploading a new signing key should make the old signing key unavailable"""
|
|
local_user = "@boris:" + self.hs.hostname
|
|
keys1 = {
|
|
"master_key": {
|
|
# private key: 2lonYOM6xYKdEsO+6KrC766xBcHnYnim1x/4LFGF8B0
|
|
"user_id": local_user,
|
|
"usage": ["master"],
|
|
"keys": {
|
|
"ed25519:nqOvzeuGWT/sRx3h7+MHoInYj3Uk2LD/unI9kDYcHwk": "nqOvzeuGWT/sRx3h7+MHoInYj3Uk2LD/unI9kDYcHwk"
|
|
},
|
|
}
|
|
}
|
|
yield self.handler.upload_signing_keys_for_user(local_user, keys1)
|
|
|
|
keys2 = {
|
|
"master_key": {
|
|
# private key: 4TL4AjRYwDVwD3pqQzcor+ez/euOB1/q78aTJ+czDNs
|
|
"user_id": local_user,
|
|
"usage": ["master"],
|
|
"keys": {
|
|
"ed25519:Hq6gL+utB4ET+UvD5ci0kgAwsX6qP/zvf8v6OInU5iw": "Hq6gL+utB4ET+UvD5ci0kgAwsX6qP/zvf8v6OInU5iw"
|
|
},
|
|
}
|
|
}
|
|
yield self.handler.upload_signing_keys_for_user(local_user, keys2)
|
|
|
|
devices = yield self.handler.query_devices(
|
|
{"device_keys": {local_user: []}}, 0, local_user
|
|
)
|
|
self.assertDictEqual(devices["master_keys"], {local_user: keys2["master_key"]})
|
|
|
|
@defer.inlineCallbacks
|
|
def test_reupload_signatures(self):
|
|
"""re-uploading a signature should not fail"""
|
|
local_user = "@boris:" + self.hs.hostname
|
|
keys1 = {
|
|
"master_key": {
|
|
# private key: HvQBbU+hc2Zr+JP1sE0XwBe1pfZZEYtJNPJLZJtS+F8
|
|
"user_id": local_user,
|
|
"usage": ["master"],
|
|
"keys": {
|
|
"ed25519:EmkqvokUn8p+vQAGZitOk4PWjp7Ukp3txV2TbMPEiBQ": "EmkqvokUn8p+vQAGZitOk4PWjp7Ukp3txV2TbMPEiBQ"
|
|
},
|
|
},
|
|
"self_signing_key": {
|
|
# private key: 2lonYOM6xYKdEsO+6KrC766xBcHnYnim1x/4LFGF8B0
|
|
"user_id": local_user,
|
|
"usage": ["self_signing"],
|
|
"keys": {
|
|
"ed25519:nqOvzeuGWT/sRx3h7+MHoInYj3Uk2LD/unI9kDYcHwk": "nqOvzeuGWT/sRx3h7+MHoInYj3Uk2LD/unI9kDYcHwk"
|
|
},
|
|
},
|
|
}
|
|
master_signing_key = key.decode_signing_key_base64(
|
|
"ed25519",
|
|
"EmkqvokUn8p+vQAGZitOk4PWjp7Ukp3txV2TbMPEiBQ",
|
|
"HvQBbU+hc2Zr+JP1sE0XwBe1pfZZEYtJNPJLZJtS+F8",
|
|
)
|
|
sign.sign_json(keys1["self_signing_key"], local_user, master_signing_key)
|
|
signing_key = key.decode_signing_key_base64(
|
|
"ed25519",
|
|
"nqOvzeuGWT/sRx3h7+MHoInYj3Uk2LD/unI9kDYcHwk",
|
|
"2lonYOM6xYKdEsO+6KrC766xBcHnYnim1x/4LFGF8B0",
|
|
)
|
|
yield self.handler.upload_signing_keys_for_user(local_user, keys1)
|
|
|
|
# upload two device keys, which will be signed later by the self-signing key
|
|
device_key_1 = {
|
|
"user_id": local_user,
|
|
"device_id": "abc",
|
|
"algorithms": ["m.olm.curve25519-aes-sha256", "m.megolm.v1.aes-sha"],
|
|
"keys": {
|
|
"ed25519:abc": "base64+ed25519+key",
|
|
"curve25519:abc": "base64+curve25519+key",
|
|
},
|
|
"signatures": {local_user: {"ed25519:abc": "base64+signature"}},
|
|
}
|
|
device_key_2 = {
|
|
"user_id": local_user,
|
|
"device_id": "def",
|
|
"algorithms": ["m.olm.curve25519-aes-sha256", "m.megolm.v1.aes-sha"],
|
|
"keys": {
|
|
"ed25519:def": "base64+ed25519+key",
|
|
"curve25519:def": "base64+curve25519+key",
|
|
},
|
|
"signatures": {local_user: {"ed25519:def": "base64+signature"}},
|
|
}
|
|
|
|
yield self.handler.upload_keys_for_user(
|
|
local_user, "abc", {"device_keys": device_key_1}
|
|
)
|
|
yield self.handler.upload_keys_for_user(
|
|
local_user, "def", {"device_keys": device_key_2}
|
|
)
|
|
|
|
# sign the first device key and upload it
|
|
del device_key_1["signatures"]
|
|
sign.sign_json(device_key_1, local_user, signing_key)
|
|
yield self.handler.upload_signatures_for_device_keys(
|
|
local_user, {local_user: {"abc": device_key_1}}
|
|
)
|
|
|
|
# sign the second device key and upload both device keys. The server
|
|
# should ignore the first device key since it already has a valid
|
|
# signature for it
|
|
del device_key_2["signatures"]
|
|
sign.sign_json(device_key_2, local_user, signing_key)
|
|
yield self.handler.upload_signatures_for_device_keys(
|
|
local_user, {local_user: {"abc": device_key_1, "def": device_key_2}}
|
|
)
|
|
|
|
device_key_1["signatures"][local_user]["ed25519:abc"] = "base64+signature"
|
|
device_key_2["signatures"][local_user]["ed25519:def"] = "base64+signature"
|
|
devices = yield self.handler.query_devices(
|
|
{"device_keys": {local_user: []}}, 0, local_user
|
|
)
|
|
del devices["device_keys"][local_user]["abc"]["unsigned"]
|
|
del devices["device_keys"][local_user]["def"]["unsigned"]
|
|
self.assertDictEqual(devices["device_keys"][local_user]["abc"], device_key_1)
|
|
self.assertDictEqual(devices["device_keys"][local_user]["def"], device_key_2)
|
|
|
|
@defer.inlineCallbacks
|
|
def test_self_signing_key_doesnt_show_up_as_device(self):
|
|
"""signing keys should be hidden when fetching a user's devices"""
|
|
local_user = "@boris:" + self.hs.hostname
|
|
keys1 = {
|
|
"master_key": {
|
|
# private key: 2lonYOM6xYKdEsO+6KrC766xBcHnYnim1x/4LFGF8B0
|
|
"user_id": local_user,
|
|
"usage": ["master"],
|
|
"keys": {
|
|
"ed25519:nqOvzeuGWT/sRx3h7+MHoInYj3Uk2LD/unI9kDYcHwk": "nqOvzeuGWT/sRx3h7+MHoInYj3Uk2LD/unI9kDYcHwk"
|
|
},
|
|
}
|
|
}
|
|
yield self.handler.upload_signing_keys_for_user(local_user, keys1)
|
|
|
|
res = None
|
|
try:
|
|
yield self.hs.get_device_handler().check_device_registered(
|
|
user_id=local_user,
|
|
device_id="nqOvzeuGWT/sRx3h7+MHoInYj3Uk2LD/unI9kDYcHwk",
|
|
initial_device_display_name="new display name",
|
|
)
|
|
except errors.SynapseError as e:
|
|
res = e.code
|
|
self.assertEqual(res, 400)
|
|
|
|
res = yield self.handler.query_local_devices({local_user: None})
|
|
self.assertDictEqual(res, {local_user: {}})
|
|
|
|
@defer.inlineCallbacks
|
|
def test_upload_signatures(self):
|
|
"""should check signatures that are uploaded"""
|
|
# set up a user with cross-signing keys and a device. This user will
|
|
# try uploading signatures
|
|
local_user = "@boris:" + self.hs.hostname
|
|
device_id = "xyz"
|
|
# private key: OMkooTr76ega06xNvXIGPbgvvxAOzmQncN8VObS7aBA
|
|
device_pubkey = "NnHhnqiMFQkq969szYkooLaBAXW244ZOxgukCvm2ZeY"
|
|
device_key = {
|
|
"user_id": local_user,
|
|
"device_id": device_id,
|
|
"algorithms": ["m.olm.curve25519-aes-sha256", "m.megolm.v1.aes-sha"],
|
|
"keys": {"curve25519:xyz": "curve25519+key", "ed25519:xyz": device_pubkey},
|
|
"signatures": {local_user: {"ed25519:xyz": "something"}},
|
|
}
|
|
device_signing_key = key.decode_signing_key_base64(
|
|
"ed25519", "xyz", "OMkooTr76ega06xNvXIGPbgvvxAOzmQncN8VObS7aBA"
|
|
)
|
|
|
|
yield self.handler.upload_keys_for_user(
|
|
local_user, device_id, {"device_keys": device_key}
|
|
)
|
|
|
|
# private key: 2lonYOM6xYKdEsO+6KrC766xBcHnYnim1x/4LFGF8B0
|
|
master_pubkey = "nqOvzeuGWT/sRx3h7+MHoInYj3Uk2LD/unI9kDYcHwk"
|
|
master_key = {
|
|
"user_id": local_user,
|
|
"usage": ["master"],
|
|
"keys": {"ed25519:" + master_pubkey: master_pubkey},
|
|
}
|
|
master_signing_key = key.decode_signing_key_base64(
|
|
"ed25519", master_pubkey, "2lonYOM6xYKdEsO+6KrC766xBcHnYnim1x/4LFGF8B0"
|
|
)
|
|
usersigning_pubkey = "Hq6gL+utB4ET+UvD5ci0kgAwsX6qP/zvf8v6OInU5iw"
|
|
usersigning_key = {
|
|
# private key: 4TL4AjRYwDVwD3pqQzcor+ez/euOB1/q78aTJ+czDNs
|
|
"user_id": local_user,
|
|
"usage": ["user_signing"],
|
|
"keys": {"ed25519:" + usersigning_pubkey: usersigning_pubkey},
|
|
}
|
|
usersigning_signing_key = key.decode_signing_key_base64(
|
|
"ed25519", usersigning_pubkey, "4TL4AjRYwDVwD3pqQzcor+ez/euOB1/q78aTJ+czDNs"
|
|
)
|
|
sign.sign_json(usersigning_key, local_user, master_signing_key)
|
|
# private key: HvQBbU+hc2Zr+JP1sE0XwBe1pfZZEYtJNPJLZJtS+F8
|
|
selfsigning_pubkey = "EmkqvokUn8p+vQAGZitOk4PWjp7Ukp3txV2TbMPEiBQ"
|
|
selfsigning_key = {
|
|
"user_id": local_user,
|
|
"usage": ["self_signing"],
|
|
"keys": {"ed25519:" + selfsigning_pubkey: selfsigning_pubkey},
|
|
}
|
|
selfsigning_signing_key = key.decode_signing_key_base64(
|
|
"ed25519", selfsigning_pubkey, "HvQBbU+hc2Zr+JP1sE0XwBe1pfZZEYtJNPJLZJtS+F8"
|
|
)
|
|
sign.sign_json(selfsigning_key, local_user, master_signing_key)
|
|
cross_signing_keys = {
|
|
"master_key": master_key,
|
|
"user_signing_key": usersigning_key,
|
|
"self_signing_key": selfsigning_key,
|
|
}
|
|
yield self.handler.upload_signing_keys_for_user(local_user, cross_signing_keys)
|
|
|
|
# set up another user with a master key. This user will be signed by
|
|
# the first user
|
|
other_user = "@otherboris:" + self.hs.hostname
|
|
other_master_pubkey = "fHZ3NPiKxoLQm5OoZbKa99SYxprOjNs4TwJUKP+twCM"
|
|
other_master_key = {
|
|
# private key: oyw2ZUx0O4GifbfFYM0nQvj9CL0b8B7cyN4FprtK8OI
|
|
"user_id": other_user,
|
|
"usage": ["master"],
|
|
"keys": {"ed25519:" + other_master_pubkey: other_master_pubkey},
|
|
}
|
|
yield self.handler.upload_signing_keys_for_user(
|
|
other_user, {"master_key": other_master_key}
|
|
)
|
|
|
|
# test various signature failures (see below)
|
|
ret = yield self.handler.upload_signatures_for_device_keys(
|
|
local_user,
|
|
{
|
|
local_user: {
|
|
# fails because the signature is invalid
|
|
# should fail with INVALID_SIGNATURE
|
|
device_id: {
|
|
"user_id": local_user,
|
|
"device_id": device_id,
|
|
"algorithms": [
|
|
"m.olm.curve25519-aes-sha256",
|
|
"m.megolm.v1.aes-sha",
|
|
],
|
|
"keys": {
|
|
"curve25519:xyz": "curve25519+key",
|
|
# private key: OMkooTr76ega06xNvXIGPbgvvxAOzmQncN8VObS7aBA
|
|
"ed25519:xyz": device_pubkey,
|
|
},
|
|
"signatures": {
|
|
local_user: {"ed25519:" + selfsigning_pubkey: "something"}
|
|
},
|
|
},
|
|
# fails because device is unknown
|
|
# should fail with NOT_FOUND
|
|
"unknown": {
|
|
"user_id": local_user,
|
|
"device_id": "unknown",
|
|
"signatures": {
|
|
local_user: {"ed25519:" + selfsigning_pubkey: "something"}
|
|
},
|
|
},
|
|
# fails because the signature is invalid
|
|
# should fail with INVALID_SIGNATURE
|
|
master_pubkey: {
|
|
"user_id": local_user,
|
|
"usage": ["master"],
|
|
"keys": {"ed25519:" + master_pubkey: master_pubkey},
|
|
"signatures": {
|
|
local_user: {"ed25519:" + device_pubkey: "something"}
|
|
},
|
|
},
|
|
},
|
|
other_user: {
|
|
# fails because the device is not the user's master-signing key
|
|
# should fail with NOT_FOUND
|
|
"unknown": {
|
|
"user_id": other_user,
|
|
"device_id": "unknown",
|
|
"signatures": {
|
|
local_user: {"ed25519:" + usersigning_pubkey: "something"}
|
|
},
|
|
},
|
|
other_master_pubkey: {
|
|
# fails because the key doesn't match what the server has
|
|
# should fail with UNKNOWN
|
|
"user_id": other_user,
|
|
"usage": ["master"],
|
|
"keys": {"ed25519:" + other_master_pubkey: other_master_pubkey},
|
|
"something": "random",
|
|
"signatures": {
|
|
local_user: {"ed25519:" + usersigning_pubkey: "something"}
|
|
},
|
|
},
|
|
},
|
|
},
|
|
)
|
|
|
|
user_failures = ret["failures"][local_user]
|
|
self.assertEqual(
|
|
user_failures[device_id]["errcode"], errors.Codes.INVALID_SIGNATURE
|
|
)
|
|
self.assertEqual(
|
|
user_failures[master_pubkey]["errcode"], errors.Codes.INVALID_SIGNATURE
|
|
)
|
|
self.assertEqual(user_failures["unknown"]["errcode"], errors.Codes.NOT_FOUND)
|
|
|
|
other_user_failures = ret["failures"][other_user]
|
|
self.assertEqual(
|
|
other_user_failures["unknown"]["errcode"], errors.Codes.NOT_FOUND
|
|
)
|
|
self.assertEqual(
|
|
other_user_failures[other_master_pubkey]["errcode"], errors.Codes.UNKNOWN
|
|
)
|
|
|
|
# test successful signatures
|
|
del device_key["signatures"]
|
|
sign.sign_json(device_key, local_user, selfsigning_signing_key)
|
|
sign.sign_json(master_key, local_user, device_signing_key)
|
|
sign.sign_json(other_master_key, local_user, usersigning_signing_key)
|
|
ret = yield self.handler.upload_signatures_for_device_keys(
|
|
local_user,
|
|
{
|
|
local_user: {device_id: device_key, master_pubkey: master_key},
|
|
other_user: {other_master_pubkey: other_master_key},
|
|
},
|
|
)
|
|
|
|
self.assertEqual(ret["failures"], {})
|
|
|
|
# fetch the signed keys/devices and make sure that the signatures are there
|
|
ret = yield self.handler.query_devices(
|
|
{"device_keys": {local_user: [], other_user: []}}, 0, local_user
|
|
)
|
|
|
|
self.assertEqual(
|
|
ret["device_keys"][local_user]["xyz"]["signatures"][local_user][
|
|
"ed25519:" + selfsigning_pubkey
|
|
],
|
|
device_key["signatures"][local_user]["ed25519:" + selfsigning_pubkey],
|
|
)
|
|
self.assertEqual(
|
|
ret["master_keys"][local_user]["signatures"][local_user][
|
|
"ed25519:" + device_id
|
|
],
|
|
master_key["signatures"][local_user]["ed25519:" + device_id],
|
|
)
|
|
self.assertEqual(
|
|
ret["master_keys"][other_user]["signatures"][local_user][
|
|
"ed25519:" + usersigning_pubkey
|
|
],
|
|
other_master_key["signatures"][local_user]["ed25519:" + usersigning_pubkey],
|
|
)
|