def get_nested_verification_key_hash(self,
nested_zksnark: IZKSnarkProvider,
vk: IVerificationKey) -> str:
with grpc.insecure_channel(self.endpoint) as channel:
stub = aggregator_pb2_grpc.AggregatorStub(channel) # type: ignore
vk_proto = nested_zksnark.verification_key_to_proto(vk)
vk_hash_json = stub.GetNestedVerificationKeyHash(vk_proto).hash
return json.loads(vk_hash_json)
def get_aggregated_transaction(self, wrapper_zksnark: IZKSnarkProvider,
name: str) -> AggregatedTransaction:
"""
Request an aggregated transaction.
"""
agg_tx_request = aggregator_pb2.AggregatedTransactionRequest()
agg_tx_request.application_name = name
with grpc.insecure_channel(self.endpoint) as channel:
stub = aggregator_pb2_grpc.AggregatorStub(channel) # type: ignore
agg_tx_proto = stub.GenerateAggregatedTransaction(agg_tx_request)
return aggregated_transaction_from_proto(wrapper_zksnark, agg_tx_proto)
def submit_nested_transaction(self, nested_zksnark: IZKSnarkProvider,
nested_tx: NestedTransaction) -> None:
"""
Submit a nested transaction to the aggregator.
"""
assert isinstance(nested_zksnark, IZKSnarkProvider)
assert isinstance(nested_tx, NestedTransaction)
nested_tx_proto = nested_transaction_to_proto(nested_zksnark,
nested_tx)
with grpc.insecure_channel(self.endpoint) as channel:
stub = aggregator_pb2_grpc.AggregatorStub(channel) # type: ignore
stub.SubmitNestedTransaction(nested_tx_proto)
def register_application(self, nested_zksnark: IZKSnarkProvider,
vk: IVerificationKey, app_name: str) -> None:
"""
Register an application. Throw an error with message if this fails for any
reason.
"""
app_desc = aggregator_pb2.ApplicationDescription()
app_desc.application_name = app_name
app_desc.vk.CopyFrom(nested_zksnark.verification_key_to_proto(vk)) \
# pylint: disable=no-member
with grpc.insecure_channel(self.endpoint) as channel:
stub = aggregator_pb2_grpc.AggregatorStub(channel) # type: ignore
stub.RegisterApplication(app_desc)
def get_verification_key(
self, wrapper_zksnark: IZKSnarkProvider) -> IVerificationKey:
with grpc.insecure_channel(self.endpoint) as channel:
stub = aggregator_pb2_grpc.AggregatorStub(channel) # type: ignore
vk_proto = stub.GetVerificationKey(empty_pb2.Empty())
return wrapper_zksnark.verification_key_from_proto(vk_proto)
def get_configuration(self) -> AggregatorConfiguration:
with grpc.insecure_channel(self.endpoint) as channel:
stub = aggregator_pb2_grpc.AggregatorStub(channel) # type: ignore
config_proto = stub.GetConfiguration(empty_pb2.Empty())
return aggregator_configuration_from_proto(config_proto)