class UbirchProtocol(object):
"""
The ubirch-protocol packages data into a protocol wrapper, taking care of signing data, chaining of signatures
and verification of incoming messages.
"""
ECC_ENCRYPTION_OID = (1, 2, 1, 3, 101, 112)
def __init__(self, uuid: UUID, keystore_file: str, password: str) -> None:
"""Initialize the ubirch-protocol for the device with the given UUID."""
super().__init__()
self._uuid = uuid.hex
self._ks_file = keystore_file
self._ks_password = password
self._load_or_create_keys()
def _load_or_create_keys(self) -> None:
"""Load or create new crypto-keys. The keys are stored in a local key store."""
if not self._uuid:
raise Exception("missing UUID to load key from keystore")
# try to load the keystore or create a new one
try:
self._ks = jks.KeyStore.load(self._ks_file, self._ks_password)
except FileNotFoundError:
log.warning("creating new key store: {}".format(self._ks_file))
self._ks = jks.KeyStore.new("jks", [])
# load the key
if self._uuid in self._ks.private_keys:
sk = self._ks.private_keys[self._uuid]
self._signingKey = SigningKey(sk.pkey)
log.info("loaded signing key for {}".format(self._uuid))
else:
self._signingKey, vk = ed25519.create_keypair(entropy=urandom)
# encode the ED25519 private key as PKCS#8
ed25519_algorithm_oid = self.ECC_ENCRYPTION_OID
private_key_info = rfc5208.PrivateKeyInfo()
private_key_info.setComponentByName('version', 'v1')
a = AlgorithmIdentifier()
a.setComponentByName('algorithm', ed25519_algorithm_oid)
private_key_info.setComponentByName('privateKeyAlgorithm', a)
private_key_info.setComponentByName('privateKey',
self._signingKey.to_bytes())
pkey_pkcs8 = encoder.encode(private_key_info)
pke = jks.PrivateKeyEntry.new(alias=str(self._uuid),
certs=[],
key=pkey_pkcs8)
self._ks.entries[self._uuid] = pke
self._ks.save(self._ks_file, self._ks_password)
log.info("created new signing key for {}".format(self._uuid))
def pack_key_registration(self) -> bytes:
now = datetime.utcnow()
created = self._time_format(now)
not_before = self._time_format(now)
not_after = self._time_format(now + timedelta(days=365))
pub_key_enc = bytes.decode(
base64.b64encode(self._sk.get_verifying_key().to_bytes()))
pub_key_info = {
"hwDeviceId": self._serial,
"pubKey": pub_key_enc,
"pubKeyId": pub_key_enc,
"algorithm": 'ECC_ED25519',
"created": created,
"validNotBefore": not_before,
"validNotAfter": not_after
}
pub_key_info_enc = str.encode(
json.dumps(pub_key_info, sort_keys=True, separators=(',', ':')))
signature = bytes.decode(
base64.b64encode(self._sk.sign(pub_key_info_enc)))
payload = {"pubKeyInfo": pub_key_info, "signature": signature}
return str.encode(
json.dumps(payload, sort_keys=True, separators={',', ":"}))
def find_signing_key(self, uuid: UUID) -> SigningKey:
"""Find the signing key for this UUID."""
sk = self._ks.private_keys['pke_' + uuid.hex]
return SigningKey(sk.pkey)
def sign_msg(sign_key: str, msg: bytes) -> any:
sk = SigningKey(sk_s=sign_key.encode('latin1'), prefix='', encoding='hex')
sig = sk.sign(msg=msg, prefix='', encoding='hex')
return sig
logger = logging.getLogger()
ERRORS = 0
UBIRCH_CLIENT = os.getenv("UBIRCH_CLIENT")
if UBIRCH_CLIENT and not UBIRCH_CLIENT.strip():
UBIRCH_CLIENT = None
UBIRCH_ENV = os.getenv("UBIRCH_ENV")
UBIRCH_AUTH = os.getenv("UBIRCH_AUTH")
# test UUID
uuid = UUID(hex=os.getenv('UBIRCH_DEVICE_UUID',
"00000000-0000-0000-0000-000000000000"))
sk = SigningKey(binascii.unhexlify(os.getenv('UBIRCH_PRIV_KEY')))
vk = sk.get_verifying_key()
logger.debug("UBIRCH_CLIENT = '{}'".format(UBIRCH_CLIENT))
logger.debug("UBIRCH_ENV = '{}'".format(UBIRCH_ENV))
logger.debug("UBIRCH_AUTH = '{}'".format(UBIRCH_AUTH))
logger.debug("UBIRCH_DEVICE_UUID = '{}'".format(uuid))
NAGIOS_OK = 0
NAGIOS_WARNING = 1
NAGIOS_ERROR = 2
NAGIOS_UNKNOWN = 3
def nagios(client, env, service, code, message="OK"):
global ERRORS
def sign(self, privKey: ed25519.SigningKey) -> None:
self.signature = privKey.sign(b"MEROS" + self.hash)
def sign_bytes(bytes_to_sign: bytes,
private_key: ed25519.SigningKey) -> bytes:
sig = private_key.sign(bytes_to_sign)
return sig
def main():
pg_api_key = 'ad68accaab14a18e15afe21f1330acac5ee3bb4d0c2709443b7d4def89b985bc'
pg_client_sign_key = '7d9c911ca987e85c90af66511f0ba31ea95996ba7a095b5afcf58df82ae0016c'
pg_client_verify_key = '77dbfd30dedf746fb6088017cf5fdcbe59411686784bd5a27ca40cef26cab4f7'
api_url = "http://127.0.0.1:59001/api/demo/this_is_api_name"
api_name = 'this_is_api_name'
data = {
'book':'book name',
'apple': 'apple name',
'cat': 'cat name',
'null_field': None,
'list_field': ['bbbbb','ccccc','aaaaaa'],
'object_field':{
'ccc': '0000',
'bb': '11111',
'aaa': '22222'
},
'is_ok': True,
}
data_json_str = json.dumps(data, separators=(',', ':'), sort_keys=True) # 按照key字母顺序排序
print('json_str:{}'.format(data_json_str))
print('------------------------------\n\n')
# timestamp_str = str(int(time.time() * 1000))
timestamp_str = '1590156401029'
print('tmpstamp_str:{}'.format(timestamp_str))
print('------------------------------\n\n')
join_str = '|'.join([timestamp_str, api_name, data_json_str])
print('join_str:{}'.format(join_str))
print('------------------------------\n\n')
sign_msg_bytes = join_str.encode('utf8')
print('sign_msg_bytes:{}'.format(sign_msg_bytes))
print('------------------------------\n\n')
sk = SigningKey(sk_s=pg_client_sign_key.encode('utf8'), prefix='', encoding='hex')
signature_bytes = sk.sign(msg=sign_msg_bytes, prefix='', encoding='hex')
print('signature_bytes:{}'.format(signature_bytes))
print('------------------------------\n\n')
signature_str = signature_bytes.decode('utf8')
print('signature_str:{}'.format(signature_str))
print('------------------------------\n\n')
req_headers = {
'ContentType': 'application/json',
'PG_API_KEY': pg_api_key,
'PG_API_TIMESTAMP': timestamp_str,
'PG_API_SIGNATURE': signature_str
}
#请求接口
# rsp = requests.post(url=api_url, json=data, headers=req_headers)
try:
vk = VerifyingKey(vk_s=pg_client_verify_key, prefix='', encoding='hex')
vk.verify(sig=signature_str, msg=sign_msg_bytes, prefix='', encoding='hex')
print('验签成功')
except Exception as e:
print('验签失败')
pass
def publicKeyFromPrivate(priv: str) -> str:
skByte = bytes.fromhex(priv)
return SigningKey(skByte).get_verifying_key().to_bytes().hex()
def sign(msg: bytes, priv: str) -> bytes:
skByte = bytes.fromhex(priv)
skSigning = SigningKey(skByte)
return skSigning.sign(msg)
