def register_interchain_auth_v1(
chain_registration_body: Dict[str, str]) -> None:
dcid = chain_registration_body["dcid"]
key = chain_registration_body["key"]
signature = chain_registration_body["signature"]
# Initialize keys with chain id as public key (dont need to pull from matchmaking)
requester_keys = keys.DCKeys(pull_keys=False).initialize(
public_key_string=dcid, hash_type="sha256")
if not requester_keys.check_signature(
f"{keys.get_public_id()}_{key}".encode("utf-8"), signature):
_log.info(
f"invalid signature for interchain key registration from {dcid}")
raise exceptions.UnauthorizedException(
"Invalid signature authorization")
# Authorization successful, now register actual key
auth_key = api_key_model.new_from_scratch(interchain_dcid=dcid)
auth_key.key = key
try:
api_key_dao.save_api_key(auth_key)
except Exception:
_log.exception("Error saving interchain auth key")
raise RuntimeError("Authorization registration failure")
_log.info(f"successfully registered interchain auth key with {dcid}")
def sign_transaction(self, raw_transaction: Dict[str, Any]) -> str:
"""Sign a transaction for this network
Args:
amount (int): amount of token in transaction
to_address (str): hex of the address to send to
symbol (str, optional): the exchange symbol for the token (defaults to 'BNB')
memo (str, optional): string of data to publish in the transaction (defaults to '')
Returns:
String of the signed transaction as base64
"""
built_transaction = self._build_transaction_msg(raw_transaction)
try:
if self.testnet:
tx = TestBnbTransaction.from_obj(built_transaction)
else: # mainnet
tx = BnbTransaction.from_obj(built_transaction)
_log.info(
f"[BINANCE] Signing raw transaction: {tx.signing_json()}")
mykeys = keys.DCKeys(pull_keys=False)
mykeys.initialize(private_key_string=self.b64_private_key)
signature = base64.b64decode(
mykeys.make_binance_signature(content=tx.signing_json()))
tx.apply_sig(signature, self.pub.serialize(compressed=True))
signed_transaction_bytes = tx.encode()
# signed_transaction expected to be base64, not hex:
return base64.b64encode(signed_transaction_bytes).decode("ascii")
except Exception as e:
raise exceptions.BadRequest(
f"[BINANCE] Error signing transaction: {e}")
def get_verifying_keys(chain_id: str) -> keys.DCKeys:
_log.info("[L2] Getting L1's verifying keys")
return keys.DCKeys(chain_id)
def get_verifying_keys(chain_id: str) -> keys.DCKeys:
return keys.DCKeys(chain_id)