diff options
Diffstat (limited to 'tests/handlers/test_e2e_keys.py')
| -rw-r--r-- | tests/handlers/test_e2e_keys.py | 295 |
1 files changed, 294 insertions, 1 deletions
diff --git a/tests/handlers/test_e2e_keys.py b/tests/handlers/test_e2e_keys.py index a62c52eefa..854eb6c024 100644 --- a/tests/handlers/test_e2e_keys.py +++ b/tests/handlers/test_e2e_keys.py @@ -17,9 +17,11 @@ import mock +import signedjson.key as key +import signedjson.sign as sign + from twisted.internet import defer -import synapse.api.errors import synapse.handlers.e2e_keys import synapse.storage from synapse.api import errors @@ -182,6 +184,96 @@ class E2eKeysHandlerTestCase(unittest.TestCase): 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 @@ -210,3 +302,204 @@ class E2eKeysHandlerTestCase(unittest.TestCase): 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], + ) |