def generate_files(self, config: Dict[str, Any],
config_dir_path: str) -> None:
if "signing_key" in config:
return
signing_key_path = config.get("signing_key_path")
if signing_key_path is None:
signing_key_path = os.path.join(
config_dir_path, config["server_name"] + ".signing.key")
if not self.path_exists(signing_key_path):
print("Generating signing key file %s" % (signing_key_path, ))
with open(signing_key_path, "w") as signing_key_file:
key_id = "a_" + random_string(4)
write_signing_keys(signing_key_file,
(generate_signing_key(key_id), ))
else:
signing_keys = self.read_file(signing_key_path, "signing_key")
if len(signing_keys.split("\n")[0].split()) == 1:
# handle keys in the old format.
key_id = "a_" + random_string(4)
key = decode_signing_key_base64(NACL_ED25519, key_id,
signing_keys.split("\n")[0])
with open(signing_key_path, "w") as signing_key_file:
write_signing_keys(signing_key_file, (key, ))
def generate_files(self, config):
signing_key_path = config["signing_key_path"]
if not self.path_exists(signing_key_path):
with open(signing_key_path, "w") as signing_key_file:
key_id = "a_" + random_string(4)
write_signing_keys(signing_key_file,
(generate_signing_key(key_id), ))
else:
signing_keys = self.read_file(signing_key_path, "signing_key")
if len(signing_keys.split("\n")[0].split()) == 1:
# handle keys in the old format.
key_id = "a_" + random_string(4)
key = decode_signing_key_base64(NACL_ED25519, key_id,
signing_keys.split("\n")[0])
with open(signing_key_path, "w") as signing_key_file:
write_signing_keys(signing_key_file, (key, ))
def generate_files(self, config):
signing_key_path = config["signing_key_path"]
if not os.path.exists(signing_key_path):
with open(signing_key_path, "w") as signing_key_file:
key_id = "a_" + random_string(4)
write_signing_keys(
signing_key_file, (generate_signing_key(key_id),),
)
else:
signing_keys = self.read_file(signing_key_path, "signing_key")
if len(signing_keys.split("\n")[0].split()) == 1:
# handle keys in the old format.
key_id = "a_" + random_string(4)
key = decode_signing_key_base64(
NACL_ED25519, key_id, signing_keys.split("\n")[0]
)
with open(signing_key_path, "w") as signing_key_file:
write_signing_keys(
signing_key_file, (key,),
)
def test_upload_signatures(self) -> None:
"""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 = "******" + 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-sha2",
RoomEncryptionAlgorithms.MEGOLM_V1_AES_SHA2,
],
"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")
self.get_success(
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,
}
self.get_success(
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 = "******" + 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
},
}
self.get_success(
self.handler.upload_signing_keys_for_user(
other_user, {"master_key": other_master_key}))
# test various signature failures (see below)
ret = self.get_success(
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-sha2",
RoomEncryptionAlgorithms.MEGOLM_V1_AES_SHA2,
],
"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"],
Codes.INVALID_SIGNATURE)
self.assertEqual(user_failures[master_pubkey]["errcode"],
Codes.INVALID_SIGNATURE)
self.assertEqual(user_failures["unknown"]["errcode"], Codes.NOT_FOUND)
other_user_failures = ret["failures"][other_user]
self.assertEqual(other_user_failures["unknown"]["errcode"],
Codes.NOT_FOUND)
self.assertEqual(other_user_failures[other_master_pubkey]["errcode"],
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 = self.get_success(
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 = self.get_success(
self.handler.query_devices(
{"device_keys": {
local_user: [],
other_user: []
}},
0,
local_user,
"device123",
))
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],
)
def test_reupload_signatures(self) -> None:
"""re-uploading a signature should not fail"""
local_user = "******" + 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",
)
self.get_success(
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-sha2",
RoomEncryptionAlgorithms.MEGOLM_V1_AES_SHA2,
],
"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-sha2",
RoomEncryptionAlgorithms.MEGOLM_V1_AES_SHA2,
],
"keys": {
"ed25519:def": "base64+ed25519+key",
"curve25519:def": "base64+curve25519+key",
},
"signatures": {
local_user: {
"ed25519:def": "base64+signature"
}
},
}
self.get_success(
self.handler.upload_keys_for_user(local_user, "abc",
{"device_keys": device_key_1}))
self.get_success(
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)
self.get_success(
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)
self.get_success(
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 = self.get_success(
self.handler.query_devices({"device_keys": {
local_user: []
}}, 0, local_user, "device123"))
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)
def test_decode_invalid_key(self):
with self.assertRaises(Exception):
decode_signing_key_base64("ed25519", self.version, "")
def test_decode_signing_invalid_algorithm(self):
with self.assertRaises(Exception):
decode_signing_key_base64("not a valid alg", self.version, "")
def test_decode(self):
decoded_key = decode_signing_key_base64("ed25519", self.version,
self.key_base64)
self.assertEquals(decoded_key.alg, "ed25519")
self.assertEquals(decoded_key.version, self.version)
def setUp(self):
self.signing_key: SigningKey = decode_signing_key_base64(
KEY_ALG, KEY_VER, SIGNING_KEY_SEED)
header = { 'alg': 'ES256' }
payload = { 'claim': 'JSON is the raddest.', 'iss': 'brianb' }
sig = jws.sign(header, payload, sk256)
print(jws.verify(header, payload, sig, vk))
'''
#------
from signedjson.key import generate_signing_key, get_verify_key, encode_signing_key_base64, decode_signing_key_base64
from signedjson.sign import (sign_json, verify_signed_json,
SignatureVerifyException)
signing_key = generate_signing_key('zxcvb')
signed_json = sign_json({'my_key': 'my_data'}, 'CDF', signing_key)
print(signed_json)
#Going into function
verify_key = get_verify_key(signing_key)
print("Going into function", verify_key)
enc = encode_signing_key_base64(verify_key)
print("Base64 encoded:", enc)
print("This will go into function")
print(decode_signing_key_base64("ed25519", "zxcvb", enc))
try:
verify_signed_json(signed_json, 'CDF', verify_key)
print('Signature is valid')
except SignatureVerifyException:
print('Signature is invalid')
def test_decode_invalid_key(self):
with self.assertRaises(Exception):
decode_signing_key_base64("ed25519", self.version, "")
def test_decode_signing_invalid_algorithm(self):
with self.assertRaises(Exception):
decode_signing_key_base64("not a valid alg", self.version, "")
def test_decode(self):
decoded_key = decode_signing_key_base64(
"ed25519", self.version, self.key_base64
)
self.assertEquals(decoded_key.alg, "ed25519")
self.assertEquals(decoded_key.version, self.version)
