def add_encrypted_request_hash(self): """ calculates request has based on EEA trusted-computing spec 6.1.8.1 and set encryptedRequestHash parameter in the request. """ sig_obj = signature.ClientSignature() concat_string = self.get_requester_nonce() + \ self.get_work_order_id() + \ self.get_worker_id() + \ self.get_workload_id() + \ self.get_requester_id() concat_bytes = bytes(concat_string, "UTF-8") # SHA-256 hashing is used hash_1 = crypto.byte_array_to_base64( crypto.compute_message_hash(concat_bytes) ) hash_2 = sig_obj.calculate_datahash(self.get_in_data()) hash_3 = "" out_data = self.get_out_data() if out_data and len(out_data) > 0: hash_3 = sig_obj.calculate_datahash(out_data) concat_hash = hash_1 + hash_2 + hash_3 concat_hash = bytes(concat_hash, "UTF-8") self.final_hash = crypto.compute_message_hash(concat_hash) encrypted_request_hash = crypto_utility.encrypt_data( self.final_hash, self.session_key, self.session_iv) self.params_obj["encryptedRequestHash"] = crypto.byte_array_to_hex( encrypted_request_hash)
def __validate_work_order_receipt_create_req(self, wo_receipt_req, wo_request): """ Function to validate the work order receipt create request parameters Parameters: - wo_receipt_req is work order receipt request as dictionary - wo_request is string containing jrpc work order request Returns - tuple containing validation status(Boolean) and error message(string) """ # Valid parameters list valid_params = [ "workOrderId", "workerServiceId", "workerId", "requesterId", "receiptCreateStatus", "workOrderRequestHash", "requesterGeneratedNonce", "requesterSignature", "signatureRules", "receiptVerificationKey"] for key in wo_receipt_req["params"]: if key not in valid_params: return False, "Missing parameter " + key + " in the request" else: if key in ["workOrderId", "workerServiceId", "workerId", "requesterId", "requesterGeneratedNonce"]: if not is_valid_hex_str(wo_receipt_req["params"][key]): return False, "invalid data parameter for " + key elif key in ["workOrderRequestHash", "requesterSignature"]: try: base64.b64decode(wo_receipt_req["params"][key]) except Exception as e: return False, \ "Invalid data format for " + key receipt_type = wo_receipt_req["params"]["receiptCreateStatus"] try: receipt_enum_type = ReceiptCreateStatus(receipt_type) except Exception as err: return False, "Invalid receipt status type {}: {}".format( receipt_enum_type, str(err)) # Validate signing rules signing_rules = wo_receipt_req["params"]["signatureRules"] rules = signing_rules.split("/") if len(rules) == 2 and (rules[0] != self.HASHING_ALGORITHM or rules[1] != self.SIGNING_ALGORITHM): return False, "Unsupported the signing rules" signature_obj = signature.ClientSignature() # Verify work order request is calculated properly or not. wo_req_hash = \ signature_obj.calculate_request_hash(json.loads(wo_request)) if wo_req_hash != wo_receipt_req["params"]["workOrderRequestHash"]: return False, "Work order request hash does not match" # Verify requester signature with signing key in the request status = signature_obj.verify_create_receipt_signature(wo_receipt_req) if status != SignatureStatus.PASSED: return False, "Receipt create requester signature does not match" # If all parameters are verified in the request return True, ""
def _verify_wo_res_signature(work_order_res, worker_verification_key): # Verify work order result signature sig_obj = signature.ClientSignature() status = sig_obj.verify_signature(work_order_res, worker_verification_key) if status == SignatureStatus.PASSED: logger.info("Signature verification Successful") else: logger.error("Signature verification Failed") return False return True
def _verify_receipt_signature(receipt_update_retrieve): # Verify receipt signature sig_obj = signature.ClientSignature() status = sig_obj.verify_update_receipt_signature(receipt_update_retrieve) if status == SignatureStatus.PASSED: logger.info("Work order receipt retrieve signature verification " + "successful") else: logger.error( "Work order receipt retrieve signature verification failed!!") return False return True
def verify_work_order_signature(response, worker_obj): verify_key = worker_obj.verification_key try: verify_obj = signature.ClientSignature() sig_bool = verify_obj.verify_signature(response, verify_key) if sig_bool is SignatureStatus.PASSED: err_cd = 0 logger.info('Success: Work Order Signature Verified.') else: err_cd = 1 logger.info('ERROR: Work Order Signature Verification Failed') except Exception: err_cd = 1 logger.error('ERROR: Failed to analyze Signature Verification') return err_cd
def add_requester_signature(self, private_key): """ Calculate the signature of the request as defined in TCF EEA spec 6.1.8.3 and set the requesterSignature parameter in the request """ sig_obj = signature.ClientSignature() status, sign = sig_obj.generate_signature( self.final_hash, private_key ) if status is True: self.params_obj["requesterSignature"] = sign # public signing key is shared to enclave manager to # verify the signature. # It is temporary approach to share the key with the worker. self.set_verifying_key(private_key.GetPublicKey().Serialize()) return True else: logger.error("Signing request failed") return False
def Main(args=None): ParseCommandLine(args) config["Logging"] = {"LogFile": "__screen__", "LogLevel": "INFO"} plogger.setup_loggers(config.get("Logging", {})) sys.stdout = plogger.stream_to_logger(logging.getLogger("STDOUT"), logging.DEBUG) sys.stderr = plogger.stream_to_logger(logging.getLogger("STDERR"), logging.WARN) logger.info("***************** AVALON *****************") # Connect to registry list and retrieve registry if not off_chain: registry_list_instance = direct_jrpc.get_worker_registry_list_instance( ) # Lookup returns tuple, first element is number of registries and # second is element is lookup tag and # third is list of organization ids. registry_count, lookup_tag, registry_list = \ registry_list_instance.registry_lookup() logger.info("\n Registry lookup response: registry count: {} " + "lookup tag: {} registry list: {}\n".format( registry_count, lookup_tag, registry_list)) if (registry_count == 0): logger.warn("No registries found") sys.exit(1) # Retrieve the first registry details. registry_retrieve_result = registry_list_instance.registry_retrieve( registry_list[0]) logger.info("\n Registry retrieve response: {}\n".format( registry_retrieve_result)) config["tcf"]["json_rpc_uri"] = registry_retrieve_result[0] # Prepare worker req_id = 31 global worker_id worker_registry_instance = direct_jrpc.get_worker_registry_instance() if not worker_id: worker_lookup_result = worker_registry_instance.worker_lookup( worker_type=WorkerType.TEE_SGX, id=req_id) logger.info("\n Worker lookup response: {}\n".format( json.dumps(worker_lookup_result, indent=4))) if "result" in worker_lookup_result and \ "ids" in worker_lookup_result["result"].keys(): if worker_lookup_result["result"]["totalCount"] != 0: worker_id = worker_lookup_result["result"]["ids"][0] else: logger.error("ERROR: No workers found") sys.exit(1) else: logger.error("ERROR: Failed to lookup worker") sys.exit(1) req_id += 1 worker_retrieve_result = worker_registry_instance.worker_retrieve( worker_id, req_id) logger.info("\n Worker retrieve response: {}\n".format( json.dumps(worker_retrieve_result, indent=4))) worker_obj.load_worker(worker_retrieve_result) logger.info( "**********Worker details Updated with Worker ID" + "*********\n%s\n", worker_id) # Convert workloadId to hex workload_id = "echo-result".encode("UTF-8").hex() work_order_id = secrets.token_hex(32) requester_id = secrets.token_hex(32) session_iv = utility.generate_iv() session_key = utility.generate_key() requester_nonce = secrets.token_hex(16) # Create work order wo_params = WorkOrderParams( work_order_id, worker_id, workload_id, requester_id, session_key, session_iv, requester_nonce, result_uri=" ", notify_uri=" ", worker_encryption_key=worker_obj.encryption_key, data_encryption_algorithm="AES-GCM-256") # Add worker input data if input_data_hash: # Compute data hash for data params inData data_hash = utility.compute_data_hash(message) # Convert data_hash to hex data_hash = hex_utils.byte_array_to_hex_str(data_hash) wo_params.add_in_data(message, data_hash) else: wo_params.add_in_data(message) # Encrypt work order request hash wo_params.add_encrypted_request_hash() private_key = utility.generate_signing_keys() if requester_signature: # Add requester signature and requester verifying_key if wo_params.add_requester_signature(private_key) is False: logger.info("Work order request signing failed") exit(1) # Submit work order logger.info("Work order submit request : %s, \n \n ", wo_params.to_jrpc_string(req_id)) work_order_instance = direct_jrpc.get_work_order_instance() req_id += 1 response = work_order_instance.work_order_submit( wo_params.get_work_order_id(), wo_params.get_worker_id(), wo_params.get_requester_id(), wo_params.to_string(), id=req_id) logger.info("Work order submit response : {}\n ".format( json.dumps(response, indent=4))) if "error" in response and response["error"]["code"] != \ WorkOrderStatus.PENDING: sys.exit(1) # Create receipt wo_receipt_instance = direct_jrpc.get_work_order_receipt_instance() req_id += 1 # Create work order receipt object using WorkOrderReceiptRequest class wo_request = json.loads(wo_params.to_jrpc_string(req_id)) wo_receipt_obj = WorkOrderReceiptRequest() wo_create_receipt = wo_receipt_obj.create_receipt( wo_request, ReceiptCreateStatus.PENDING.value, private_key) logger.info("Work order create receipt request : {} \n \n ".format( json.dumps(wo_create_receipt, indent=4))) # Submit work order create receipt jrpc request wo_receipt_resp = wo_receipt_instance.work_order_receipt_create( wo_create_receipt["workOrderId"], wo_create_receipt["workerServiceId"], wo_create_receipt["workerId"], wo_create_receipt["requesterId"], wo_create_receipt["receiptCreateStatus"], wo_create_receipt["workOrderRequestHash"], wo_create_receipt["requesterGeneratedNonce"], wo_create_receipt["requesterSignature"], wo_create_receipt["signatureRules"], wo_create_receipt["receiptVerificationKey"], req_id) logger.info("Work order create receipt response : {} \n \n ".format( wo_receipt_resp)) # Retrieve result req_id += 1 res = work_order_instance.work_order_get_result(work_order_id, req_id) logger.info("Work order get result : {}\n ".format( json.dumps(res, indent=4))) sig_obj = signature.ClientSignature() if "result" in res: status = sig_obj.verify_signature(res, worker_obj.verification_key) try: if status == SignatureStatus.PASSED: logger.info( "Work order response signature verification Successful") decrypted_res = utility.decrypted_response( res, session_key, session_iv) logger.info("\nDecrypted response:\n {}".format(decrypted_res)) if input_data_hash: decrypted_data = decrypted_res[0]["data"] data_hash_in_resp = (decrypted_res[0]["dataHash"]).upper() # Verify data hash in response if utility.verify_data_hash(decrypted_data, data_hash_in_resp) is False: sys.exit(1) else: logger.info("Signature verification Failed") sys.exit(1) except Exception as err: logger.error("ERROR: Failed to decrypt response: %s", str(err)) sys.exit(1) else: logger.info("\n Work order get result failed {}\n".format(res)) sys.exit(1) # Retrieve receipt receipt_res = wo_receipt_instance.work_order_receipt_retrieve( work_order_id, id=req_id) logger.info("\n Retrieve receipt response:\n {}".format( json.dumps(receipt_res, indent=4))) # Retrieve last update to receipt by passing 0xFFFFFFFF req_id += 1 receipt_update_retrieve = \ wo_receipt_instance.work_order_receipt_update_retrieve( work_order_id, None, 1 << 32, id=req_id) logger.info("\n Last update to receipt receipt is:\n {}".format( json.dumps(receipt_update_retrieve, indent=4))) status = sig_obj.verify_update_receipt_signature(receipt_update_retrieve) if status == SignatureStatus.PASSED: logger.info( "Work order receipt retrieve signature verification Successful") else: logger.info( "Work order receipt retrieve signature verification failed!!") sys.exit(1) # Receipt lookup based on requesterId req_id += 1 receipt_lookup_res = wo_receipt_instance.work_order_receipt_lookup( requester_id=requester_id, id=req_id) logger.info("\n Work order receipt lookup response :\n {}".format( json.dumps(receipt_lookup_res, indent=4)))
def parse_command_line(config, args): LOGGER.info("***************** AVALON *****************") global input_json_str global input_json_dir global server_uri global output_json_file_name global consensus_file_name global sig_obj global worker_obj global private_key global encrypted_session_key global session_iv parser = argparse.ArgumentParser() parser.add_argument("--logfile", help="Name of the log file. " + "Use __screen__ for standard output", type=str) parser.add_argument("-p", "--private_key", help="Private Key of the Client", type=str, default=None) parser.add_argument("--loglevel", help="Logging level", type=str) parser.add_argument("-i", "--input_file", help="JSON input file name", type=str, default="input.json") parser.add_argument("--input_dir", help="Logging level", type=str, default=[]) parser.add_argument("-c", "--connect_uri", help="URI to send requests to", type=str, default=[]) parser.add_argument("output_file", help="JSON output file name", type=str, default="output.json", nargs="?") options = parser.parse_args(args) if config.get("Logging") is None: config["Logging"] = {"LogFile": "__screen__", "LogLevel": "INFO"} if options.logfile: config["Logging"]["LogFile"] = options.logfile if options.loglevel: config["Logging"]["LogLevel"] = options.loglevel.upper() input_json_str = None input_json_dir = None if options.connect_uri: server_uri = options.connect_uri else: LOGGER.error("ERROR: Please enter the server URI") if options.input_dir: LOGGER.info("Load Json Directory from %s", options.input_dir) input_json_dir = options.input_dir elif options.input_file: try: LOGGER.info("load JSON input from %s", options.input_file) with open(options.input_file, "r") as file: input_json_str = file.read() except Exception as err: LOGGER.error("ERROR: Failed to read from file %s: %s", options.input_file, str(err)) else: LOGGER.info("No input found") if options.output_file: output_json_file_name = options.output_file else: output_json_file_name = None if options.private_key: private_key = options.private_key else: # Generating the private Key for the client private_key = enclave_helper.generate_signing_keys() # Initializing Signature object, Worker Object sig_obj = signature.ClientSignature() worker_obj = worker.SGXWorkerDetails()
def evaluate(self, message): """Create and submit workorder and wait for result.""" self.result_text.set("Waiting for evaluation result...") self.update() # Create, sign, and submit workorder. # Convert workloadId to hex. workload_id = "heart-disease-eval" workload_id = workload_id.encode("UTF-8").hex() session_iv = utility.generate_iv() session_key = utility.generate_key() requester_nonce = secrets.token_hex(16) work_order_id = secrets.token_hex(32) requester_id = secrets.token_hex(32) wo_params = WorkOrderParams( work_order_id, worker_id, workload_id, requester_id, session_key, session_iv, requester_nonce, result_uri=" ", notify_uri=" ", worker_encryption_key=worker_obj.encryption_key, data_encryption_algorithm="AES-GCM-256") wo_params.add_in_data(message) wo_params.add_encrypted_request_hash() private_key = utility.generate_signing_keys() if requester_signature: # Add requester signature and requester verifying_key if wo_params.add_requester_signature(private_key) is False: logger.info("Work order request signing failed") exit(1) # Set text for JSON sidebar req_id = 51 self.request_json = wo_params.to_jrpc_string(req_id) work_order_instance = direct_jrpc.get_work_order_instance(config) response = work_order_instance.work_order_submit( wo_params.get_work_order_id(), wo_params.get_worker_id(), wo_params.get_requester_id(), wo_params.to_string(), id=req_id) logger.info("Work order submit response : {}\n ".format( json.dumps(response, indent=4))) if "error" in response and response["error"]["code"] != \ WorkOrderStatus.PENDING: sys.exit(1) # Create work order receipt req_id += 1 wo_receipt_instance = direct_jrpc.get_work_order_receipt_instance( config) wo_request = json.loads(self.request_json) wo_receipt_obj = WorkOrderReceiptRequest() wo_create_receipt = wo_receipt_obj.create_receipt( wo_request, ReceiptCreateStatus.PENDING.value, private_key) logger.info("Work order create receipt request : {} \n \n ".format( json.dumps(wo_create_receipt, indent=4))) # Submit work order create receipt jrpc request wo_receipt_resp = wo_receipt_instance.work_order_receipt_create( wo_create_receipt["workOrderId"], wo_create_receipt["workerServiceId"], wo_create_receipt["workerId"], wo_create_receipt["requesterId"], wo_create_receipt["receiptCreateStatus"], wo_create_receipt["workOrderRequestHash"], wo_create_receipt["requesterGeneratedNonce"], wo_create_receipt["requesterSignature"], wo_create_receipt["signatureRules"], wo_create_receipt["receiptVerificationKey"], req_id) logger.info("Work order create receipt response : {} \n \n ".format( wo_receipt_resp)) # Retrieve result and set GUI result text res = work_order_instance.work_order_get_result(work_order_id, req_id) self.result_json = json.dumps(res, indent=4) if "result" in res: sig_obj = signature.ClientSignature() status = sig_obj.verify_signature(res, worker_obj.verification_key) try: if status == SignatureStatus.PASSED: logger.info("Signature verification Successful") decrypted_res = utility. \ decrypted_response(res, session_key, session_iv) logger.info( "\n" + "Decrypted response:\n {}".format(decrypted_res)) else: logger.info("Signature verification Failed") sys.exit(1) except Exception as err: logger.info("ERROR: Failed to decrypt response: %s", str(err)) sys.exit(1) else: logger.info("\n Work order get result failed {}\n".format(res)) sys.exit(1) # Set text for JSON sidebar self.result_text.set(decrypted_res[0]["data"]) # Retrieve receipt # Set text for JSON sidebar req_id += 1 self.receipt_json = json.dumps( wo_receipt_instance.work_order_receipt_retrieve( work_order_id, req_id), indent=4)
def storeResultBlockchain( replymessage, worker_obj, session_key, session_iv, input, ): if replymessage: logging.info('Work order get result :') logging.info(replymessage) # Decrypt the result in_data = input['inData'] work_order_id = input['workOrder_id'] worker_id = input['worker_id'] workload_id = input['workload_id'].encode('UTF-8').hex() requester_id = input['requester_id'].encode('UTF-8').hex() if 'result' in replymessage: logging.info('inside if block') sig_obj = signature.ClientSignature() status = sig_obj.verify_signature(replymessage, worker_obj.verification_key) logging.info(status) try: if status == SignatureStatus.PASSED: logging.info('Signature verification Successful') decrypted_res = \ utility.decrypted_response(replymessage, session_key, session_iv) print('==============================================') print(decrypted_res) logging.info(type(decrypted_res)) responseToBeStoredOnBC = [] arr = ['Temperature', 'Humidity', 'Shock_alert', 'Tamper_alert'] for i in range(len(decrypted_res)): entry = decrypted_res[i] logging.info(entry) logging.info('Type of entry object') logging.info(type(entry)) logging.info(type(entry.get('data'))) newData = entry.get('data') if in_data[i].get('shock_alert') is True: shockAlert = 0 newData = newData + ' 0' else: shockAlert = 1 newData = newData + ' 1' if in_data[i].get('tamper_alert') is True: tamperAlert = 0 newData = newData + ' 0' else: tamperAlert = 1 newData = newData + ' 1' listData = newData.split(' ') for j in range(len(listData)): if listData[j] == '0': # Details sent from client -as per requirement. responseEntry1 = { 'Shipment ID': 'Wip-Ship_0085', 'Beacon ID': 'da21437ea06', 'Gateway ID': 'C030011837-0085', 'Alert Type': arr[j], 'Alert Value': '1', 'Alert Location': 'Electronic City', 'Alert Start(UTC)': '13012020,10:37AM', 'Alert End(UTC)': ' ', 'Object ID': 'Carton-2', 'Object Type': 'Carton', 'Pallet ID': 'WS-085-PL-1', } responseToBeStoredOnBC.append(responseEntry1) logging.info('=====================================') logging.info(responseToBeStoredOnBC) responseFromBlockchainCall = \ submitWorkOrder(work_order_id, worker_id, requester_id, in_data, str(responseToBeStoredOnBC)) return json.dumps(decrypted_res) if show_decrypted_output: logging.info(''' Decrypted response: {}'''.format(decrypted_res)) return decrypted_res else: logging.info('Signature verification Failed') sys.exit(1) except Exception as e: print(e) logging.info('ERROR: Failed to decrypt response') sys.exit(1) else: return 'Could not decrypt the respose.Response in undecrypted format'
def __init__(self): self.sig_obj = signature.ClientSignature() self.SIGNING_ALGORITHM = "SECP256K1" self.HASHING_ALGORITHM = "SHA-256"
def Main(args=None): ParseCommandLine(args) config["Logging"] = { "LogFile": "__screen__", "LogLevel": "INFO" } plogger.setup_loggers(config.get("Logging", {})) sys.stdout = plogger.stream_to_logger( logging.getLogger("STDOUT"), logging.DEBUG) sys.stderr = plogger.stream_to_logger( logging.getLogger("STDERR"), logging.WARN) logger.info("***************** TRUSTED COMPUTE FRAMEWORK (TCF)" + " *****************") global direct_jrpc direct_jrpc = AvalonDirectClient(config_file=None, config=config) global address if mode == "registry" and address: logger.error("\n Worker registry contract address is unsupported \n") sys.exit(-1) # Connect to registry list and retrieve registry global uri if not uri and mode == "listing": registry_list_instance = direct_jrpc.get_worker_registry_list_instance( ) # Lookup returns tuple, first element is number of registries and # second is element is lookup tag and # third is list of organization ids. registry_count, lookup_tag, registry_list = \ registry_list_instance.registry_lookup() logger.info("\n Registry lookup response: registry count: {} " + "lookup tag: {} registry list: {}\n".format( registry_count, lookup_tag, registry_list)) if (registry_count == 0): logger.error("No registries found") sys.exit(1) # Retrieve the fist registry details. registry_retrieve_result = registry_list_instance.registry_retrieve( registry_list[0]) logger.info("\n Registry retrieve response: {}\n".format( registry_retrieve_result )) config["tcf"]["json_rpc_uri"] = registry_retrieve_result[0] # Prepare worker req_id = 31 global worker_id if not worker_id: worker_registry_instance = direct_jrpc.get_worker_registry_instance() worker_lookup_result = worker_registry_instance.worker_lookup( worker_type=WorkerType.TEE_SGX, id=req_id ) logger.info("\n Worker lookup response: {}\n".format( json.dumps(worker_lookup_result, indent=4) )) if "result" in worker_lookup_result and \ "ids" in worker_lookup_result["result"].keys(): if worker_lookup_result["result"]["totalCount"] != 0: worker_id = worker_lookup_result["result"]["ids"][0] else: logger.error("ERROR: No workers found") sys.exit(1) else: logger.error("ERROR: Failed to lookup worker") sys.exit(1) req_id += 1 worker_retrieve_result = worker_registry_instance.worker_retrieve( worker_id, req_id ) logger.info("\n Worker retrieve response: {}\n".format( json.dumps(worker_retrieve_result, indent=4) )) if "error" in worker_retrieve_result: logger.error("Unable to retrieve worker details\n") sys.exit(1) # Initializing Worker Object worker_obj = worker_details.SGXWorkerDetails() worker_obj.load_worker(worker_retrieve_result) logger.info("**********Worker details Updated with Worker ID" + "*********\n%s\n", worker_id) # Convert workloadId to hex global workload_id workload_id = workload_id.encode("UTF-8").hex() work_order_id = secrets.token_hex(32) requester_id = secrets.token_hex(32) session_iv = utility.generate_iv() session_key = utility.generate_key() requester_nonce = secrets.token_hex(16) # Create work order wo_params = WorkOrderParams( work_order_id, worker_id, workload_id, requester_id, session_key, session_iv, requester_nonce, result_uri=" ", notify_uri=" ", worker_encryption_key=worker_obj.encryption_key, data_encryption_algorithm="AES-GCM-256" ) # Add worker input data global in_data for value in in_data: wo_params.add_in_data(value) # Encrypt work order request hash wo_params.add_encrypted_request_hash() private_key = utility.generate_signing_keys() if requester_signature: # Add requester signature and requester verifying_key if wo_params.add_requester_signature(private_key) is False: logger.info("Work order request signing failed") exit(1) # Submit work order logger.info("Work order submit request : %s, \n \n ", wo_params.to_jrpc_string(req_id)) work_order_instance = direct_jrpc.get_work_order_instance() req_id += 1 response = work_order_instance.work_order_submit( wo_params.get_work_order_id(), wo_params.get_worker_id(), wo_params.get_requester_id(), wo_params.to_string(), id=req_id ) logger.info("Work order submit response : {}\n ".format( json.dumps(response, indent=4) )) if "error" in response and response["error"]["code"] != \ WorkOrderStatus.PENDING: sys.exit(1) wo_receipt_instance = direct_jrpc.get_work_order_receipt_instance() # Create receipt if show_receipt: req_id += 1 # Create work order receipt object using WorkOrderReceiptRequest class wo_request = json.loads(wo_params.to_jrpc_string(req_id)) wo_receipt_obj = WorkOrderReceiptRequest() wo_create_receipt = wo_receipt_obj.create_receipt( wo_request, ReceiptCreateStatus.PENDING.value, private_key ) logger.info("Work order create receipt request : {} \n \n ".format( json.dumps(wo_create_receipt, indent=4) )) # Submit work order create receipt jrpc request wo_receipt_resp = wo_receipt_instance.work_order_receipt_create( wo_create_receipt["workOrderId"], wo_create_receipt["workerServiceId"], wo_create_receipt["workerId"], wo_create_receipt["requesterId"], wo_create_receipt["receiptCreateStatus"], wo_create_receipt["workOrderRequestHash"], wo_create_receipt["requesterGeneratedNonce"], wo_create_receipt["requesterSignature"], wo_create_receipt["signatureRules"], wo_create_receipt["receiptVerificationKey"], req_id ) logger.info("Work order create receipt response : {} \n \n ".format( wo_receipt_resp )) # Retrieve result req_id += 1 res = work_order_instance.work_order_get_result( work_order_id, req_id ) logger.info("Work order get result : {}\n ".format( json.dumps(res, indent=4) )) sig_obj = signature.ClientSignature() if "result" in res: status = sig_obj.verify_signature(res, worker_obj.verification_key) try: if status == SignatureStatus.PASSED: logger.info("Signature verification Successful") decrypted_res = utility.decrypted_response( res, session_key, session_iv) if show_decrypted_output: logger.info("\nDecrypted response:\n {}" .format(decrypted_res)) else: logger.error("Signature verification Failed") sys.exit(1) except Exception as err: logger.error("ERROR: Failed to decrypt response: %s", str(err)) sys.exit(1) else: logger.error("\n Work order get result failed {}\n".format( res )) sys.exit(1) if show_receipt: # Retrieve receipt req_id += 1 receipt_res = wo_receipt_instance.work_order_receipt_retrieve( work_order_id, id=req_id ) logger.info("\n Retrieve receipt response:\n {}".format( json.dumps(receipt_res, indent=4) )) # Retrieve last update to receipt by passing 0xFFFFFFFF req_id += 1 receipt_update_retrieve = \ wo_receipt_instance.work_order_receipt_update_retrieve( work_order_id, None, 1 << 32, id=req_id) logger.info("\n Last update to receipt receipt is:\n {}".format( json.dumps(receipt_update_retrieve, indent=4) )) status = sig_obj.verify_update_receipt_signature( receipt_update_retrieve) if status == SignatureStatus.PASSED: logger.info( "Work order receipt retrieve signature verification " + "successful") else: logger.info( "Work order receipt retrieve signature verification failed!!") sys.exit(1)