def register_wo_processor(self, unique_verification_id, encryption_key,
proof_data, mr_enclave):
"""
Request to register this WPE with the KME
Parameters :
@param unique_verification_id - Unique verifying key received from
KME.
@param encryption_key - encryption key of WPE
@param proof_data - The IAS attestation report/DCAP quote
@param mr_enclave - MRENCLAVE for this WPE
Returns :
@returns status - The status of the registration.
True, for success. None, in case of errors.
"""
workload_id = "kme-reg"
registration_params = {
"unique_id": unique_verification_id,
"proof_data": proof_data,
"wpe_encryption_key": encryption_key,
"mr_enclave": mr_enclave
}
in_data = [json.dumps(registration_params)]
# Create session key and iv to sign work order request
session_key = crypto_utils.generate_key()
session_iv = crypto_utils.generate_iv()
wo_req = self._construct_wo_req(in_data, workload_id,
self._worker.encryption_key,
session_key, session_iv)
response = self._post_and_get_result(wo_req)
if "result" in response:
wo_response_json = response["result"]
if "error" not in wo_response_json and self._verify_res_signature(
wo_response_json, self._worker.verification_key,
wo_req["params"]["requesterNonce"]):
decrypted_res = crypto_utils.decrypted_response(
wo_response_json, session_key, session_iv)
# Response contains an array of results. In this case, the
# array has single element and the data field is of interest.
# It is integer with status of registration.
return decrypted_res[0]['data']
return None
else:
logger.error(
"Could not register this WPE with the KME : {}".format(
response))
return None
def get_unique_verification_key(self, verification_key_nonce):
"""
Request wrapper to get a unique id from the KME
Parameters :
@param verification_key_nonce - Random nonce generated by this WPE
Returns :
@returns result - Result received from the KME which includes the
public verification key which is supposed to be
included in REPORTDATA by the WPE. None, in case
of failure.
"""
workload_id = "kme-uid"
in_data = [verification_key_nonce]
# Create session key and iv to sign work order request
session_key = crypto_utils.generate_key()
session_iv = crypto_utils.generate_iv()
wo_req = self._construct_wo_req(in_data, workload_id,
self._worker.encryption_key,
session_key, session_iv)
response = self._post_and_get_result(wo_req)
if "result" in response:
wo_response_json = response["result"]
if self._verify_res_signature(wo_response_json,
self._worker.verification_key,
wo_req["params"]["requesterNonce"]):
decrypted_res = crypto_utils.decrypted_response(
wo_response_json, session_key, session_iv)
# Response contains an array of results. In this case, the
# array has single element and the data field is of interest.
# The data contains result,verification_key and
# verification_key_signature delimited by ' '.
# @TODO : Update to use multiple out_data fields.
return decrypted_res[0]['data']
return None
else:
logger.error(
"Could not get a unique id from the KME : {}".format(response))
return None
def preprocess_work_order(self, wo_request, encryption_key):
"""
Request to preprocess a work order
Parameters :
@param wo_request - The original work order request as str
@param encryption_key - WPE's public encryption key
Returns :
@returns result - Result from KME that includes the workorder
key info. error response, in case of failure.
"""
workload_id = "kme-preprocess"
in_data = [wo_request, encryption_key]
# Create session key and iv to sign work order request
session_key = crypto_utils.generate_key()
session_iv = crypto_utils.generate_iv()
wo_req = self._construct_wo_req(in_data, workload_id,
self._worker.encryption_key,
session_key, session_iv)
response = self._post_and_get_result(wo_req)
if "result" in response:
wo_response_json = response["result"]
if self._verify_res_signature(wo_response_json,
self._worker.verification_key,
wo_req["params"]["requesterNonce"]):
decrypted_res = crypto_utils.decrypted_response(
wo_response_json, session_key, session_iv)
# Response contains an array of results. In this case, the
# array has single element and the data field is of interest.
return decrypted_res[0]['data']
return None
else:
logger.error(
"Could not preprocess work order at KME : {}".format(response))
return response
def Main(args=None):
options = _parse_command_line(args)
config = _parse_config_file(options.config)
if config is None:
logger.error("\n Error in parsing config file: {}\n".format(
options.config))
sys.exit(-1)
# mode should be one of listing or registry (default)
mode = options.mode
# Http JSON RPC listener uri
uri = options.uri
if uri:
config["tcf"]["json_rpc_uri"] = uri
# Setting blockchain type
# if blockchain parameter is not passed, set to None
# and None implies direct mode.
blockchain = options.blockchain
if blockchain:
config['blockchain']['type'] = blockchain
# Address of smart contract
address = options.address
if address:
if mode == "listing":
config["ethereum"]["direct_registry_contract_address"] = \
address
elif mode == "registry":
logger.error(
"\n Only Worker registry listing address is supported." +
"Worker registry address is unsupported \n")
sys.exit(-1)
# worker id
worker_id = options.worker_id
worker_id_hex = options.worker_id_hex
worker_id = worker_id_hex if not worker_id \
else hex_utils.get_worker_id_from_name(worker_id)
# work load id of worker
workload_id = options.workload_id
if not workload_id:
logger.error("\nWorkload id is mandatory\n")
sys.exit(-1)
# work order input data
in_data = options.in_data
# show receipt in output
show_receipt = options.receipt
# show decrypted result in output
show_decrypted_output = options.decrypted_output
# requester signature for work order requests
requester_signature = options.requester_signature
# setup logging
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("******* Hyperledger Avalon Generic client *******")
if mode == "registry" and address:
logger.error("\n Worker registry contract address is unsupported \n")
sys.exit(-1)
# Retrieve JSON RPC uri from registry list for direct mode.
if not uri and mode == "listing":
if not blockchain:
uri = _retrieve_uri_from_registry_list(config)
if uri is None:
logger.error("\n Unable to get http JSON RPC uri \n")
sys.exit(-1)
# Prepare worker
worker_registry = _create_worker_registry_instance(blockchain, config)
worker_obj, worker_id = _get_first_active_worker(worker_registry,
worker_id, config)
if worker_obj is None:
logger.error("Cannot proceed without a valid worker")
sys.exit(-1)
# Create session key and iv to sign work order request
session_key = crypto_utility.generate_key()
session_iv = crypto_utility.generate_iv()
s_key = session_key
s_iv = session_iv
logger.info(
"**********Worker details Updated with Worker ID" + "*********\n%s\n",
worker_id)
# Create work order
verification_key = worker_obj.verification_key
code, wo_params = _create_work_order_params(worker_id, workload_id,
in_data,
worker_obj.encryption_key,
session_key, session_iv)
if not code:
logger.error("Work order submission failed")
exit(1)
client_private_key = crypto_utility.generate_signing_keys()
if requester_signature:
# Add requester signature and requester verifying_key
if wo_params.add_requester_signature(client_private_key) is False:
logger.info("Work order request signing failed")
exit(1)
# Submit work order
jrpc_req_id = random.randint(0, 100000)
logger.info("Work order submit request : %s, \n \n ",
wo_params.to_jrpc_string(jrpc_req_id))
work_order = _create_work_order_instance(blockchain, config)
jrpc_req_id += 1
wo_id = wo_params.get_worker_id()
response = work_order.work_order_submit(wo_params.get_work_order_id(),
wo_params.get_worker_id(),
wo_params.get_requester_id(),
wo_params.to_string(),
id=jrpc_req_id)
logger.info("Work order submit response : {}\n ".format(response))
if blockchain is None:
if "error" in response and response["error"]["code"] != \
WorkOrderStatus.PENDING:
sys.exit(1)
else:
if response != ContractResponse.SUCCESS:
sys.exit(1)
# Create receipt
wo_receipt = _create_work_order_receipt_instance(blockchain, config)
if show_receipt and wo_receipt:
jrpc_req_id += 1
_create_work_order_receipt(wo_receipt, wo_params, client_private_key,
jrpc_req_id)
# Retrieve work order result
res = _get_work_order_result(work_order, wo_params.get_work_order_id(),
jrpc_req_id + 1)
if res:
logger.info("Work order get result : {}\n ".format(
json.dumps(res, indent=4)))
# Check if result field is present in work order response
if "result" in res:
# Verify work order response signature
if _verify_wo_res_signature(res['result'],
worker_obj.verification_key,
wo_params.get_requester_nonce()) \
is False:
logger.error(
"Work order response signature verification Failed")
sys.exit(1)
# Decrypt work order response
if show_decrypted_output:
decrypted_res = crypto_utility.decrypted_response(
res['result'], session_key, session_iv)
logger.info("\nDecrypted response:\n {}".format(decrypted_res))
else:
logger.error("\n Work order get result failed {}\n".format(res))
sys.exit(1)
else:
logger.error("\n Work order get result failed {}\n".format(res))
sys.exit(1)
if show_receipt and wo_receipt:
# Retrieve receipt
jrpc_req_id += 1
retrieve_wo_receipt \
= _retrieve_work_order_receipt(wo_receipt,
wo_params, jrpc_req_id)
# Verify receipt signature
if _verify_receipt_signature(retrieve_wo_receipt) is False:
logger.error("Receipt signature verification Failed")
sys.exit(1)
def Main(args=None):
options = _parse_command_line(args)
config = _parse_config_file(options.config)
if config is None:
logger.error("\n Error in parsing config file: {}\n".format(
options.config))
sys.exit(-1)
# mode should be one of listing or registry (default)
mode = options.mode
# Http JSON RPC listener uri
uri = options.uri
if uri:
config["tcf"]["json_rpc_uri"] = uri
# Address of smart contract
address = options.address
if address:
if mode == "listing":
config["ethereum"]["direct_registry_contract_address"] = \
address
elif mode == "registry":
logger.error(
"\n Only Worker registry listing address is supported." +
"Worker registry address is unsupported \n")
sys.exit(-1)
# worker id
worker_id = options.worker_id
worker_id_hex = options.worker_id_hex
worker_id = worker_id_hex if not worker_id \
else hex_utils.get_worker_id_from_name(worker_id)
# work load id of worker
workload_id = options.workload_id
if not workload_id:
logger.error("\nWorkload id is mandatory\n")
sys.exit(-1)
# work order input data
in_data = options.in_data
# Option to send input data in plain text
in_data_plain_text = options.in_data_plain
# show receipt in output
show_receipt = options.receipt
# show decrypted result in output
show_decrypted_output = options.decrypted_output
# requester signature for work order requests
requester_signature = options.requester_signature
# setup logging
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("******* Hyperledger Avalon Generic client *******")
if mode == "registry" and address:
logger.error("\n Worker registry contract address is unsupported \n")
sys.exit(-1)
# Retrieve JSON RPC uri from registry list
if not uri and mode == "listing":
uri = _retrieve_uri_from_registry_list(config)
if uri is None:
logger.error("\n Unable to get http JSON RPC uri \n")
sys.exit(-1)
# Prepare worker
# JRPC request id. Choose any integer value
jrpc_req_id = 31
worker_registry = JRPCWorkerRegistryImpl(config)
if not worker_id:
# Get first worker from worker registry
worker_id = _lookup_first_worker(worker_registry, jrpc_req_id)
if worker_id is None:
logger.error("\n Unable to get worker \n")
sys.exit(-1)
# Retrieve worker details
jrpc_req_id += 1
worker_retrieve_result = worker_registry.worker_retrieve(
worker_id, jrpc_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)
# Create session key and iv to sign work order request
session_key = crypto_utility.generate_key()
session_iv = crypto_utility.generate_iv()
# Initializing Worker Object
worker_obj = worker_details.SGXWorkerDetails()
worker_obj.load_worker(worker_retrieve_result['result']['details'])
# Do worker verification
_do_worker_verification(worker_obj)
logger.info(
"**********Worker details Updated with Worker ID" + "*********\n%s\n",
worker_id)
# Create work order
if in_data_plain_text:
# As per TC spec, if encryptedDataEncryptionKey is "-" then
# input data is not encrypted
encrypted_data_encryption_key = "-"
else:
# As per TC spec, if encryptedDataEncryptionKey is not
# provided then set it to None which means
# use default session key to encrypt input data
encrypted_data_encryption_key = None
wo_params = _create_work_order_params(worker_id, workload_id, in_data,
worker_obj.encryption_key,
session_key, session_iv,
encrypted_data_encryption_key)
client_private_key = crypto_utility.generate_signing_keys()
if requester_signature:
# Add requester signature and requester verifying_key
if wo_params.add_requester_signature(client_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(jrpc_req_id))
work_order = JRPCWorkOrderImpl(config)
jrpc_req_id += 1
response = work_order.work_order_submit(wo_params.get_work_order_id(),
wo_params.get_worker_id(),
wo_params.get_requester_id(),
wo_params.to_string(),
id=jrpc_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 = JRPCWorkOrderReceiptImpl(config)
if show_receipt:
jrpc_req_id += 1
_create_work_order_receipt(wo_receipt, wo_params, client_private_key,
jrpc_req_id)
# Retrieve work order result
jrpc_req_id += 1
res = work_order.work_order_get_result(wo_params.get_work_order_id(),
jrpc_req_id)
logger.info("Work order get result : {}\n ".format(
json.dumps(res, indent=4)))
# Check if result field is present in work order response
if "result" in res:
# Verify work order response signature
if _verify_wo_res_signature(res['result'], worker_obj.verification_key,
wo_params.get_requester_nonce()) is False:
logger.error("Work order response signature verification Failed")
sys.exit(1)
# Decrypt work order response
if show_decrypted_output:
decrypted_res = crypto_utility.decrypted_response(
res['result'], session_key, session_iv)
logger.info("\nDecrypted response:\n {}".format(decrypted_res))
else:
logger.error("\n Work order get result failed {}\n".format(res))
sys.exit(1)
if show_receipt:
# Retrieve receipt
jrpc_req_id += 1
retrieve_wo_receipt \
= _retrieve_work_order_receipt(wo_receipt,
wo_params, jrpc_req_id)
# Verify receipt signature
if "result" in retrieve_wo_receipt:
if _verify_receipt_signature(retrieve_wo_receipt) is False:
logger.error("Receipt signature verification Failed")
sys.exit(1)
else:
logger.info("Work Order receipt retrieve failed")
sys.exit(1)
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()
wo_params.create_request(
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()
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()
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['result'],
worker_obj.verification_key,
wo_params.get_requester_nonce())
try:
if status == SignatureStatus.PASSED:
logger.info("Signature verification Successful")
decrypted_res = utility. \
decrypted_response(
res['result'], 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 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["result"]["details"])
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['result'],
worker_obj.verification_key,
wo_params.get_requester_nonce())
try:
if status == SignatureStatus.PASSED:
logger.info(
"Work order response signature verification Successful")
decrypted_res = utility.decrypted_response(
res['result'], 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)))
if "result" in receipt_update_retrieve:
status = sig_obj.verify_update_receipt_signature(
receipt_update_retrieve['result'])
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)
else:
logger.info("Work order receipt update failed")
# 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 local_main(config):
if not input_json_str and not input_json_dir:
LOGGER.error("JSON input file is not provided")
exit(1)
if not output_json_file_name:
LOGGER.error("JSON output file is not provided")
exit(1)
if not server_uri:
LOGGER.error("Server URI is not provided")
exit(1)
LOGGER.info("Execute work order")
uri_client = HttpJrpcClient(server_uri)
response = None
wo_id = None
if input_json_dir:
directory = os.fsencode(input_json_dir)
files = os.listdir(directory)
for file in sorted(files):
LOGGER.info("---------------- Input file name: %s -------------\n",
file.decode("utf-8"))
input_json_str1 = futils.read_json_file(
(directory.decode("utf-8") + file.decode("utf-8")))
# -----------------------------------------------------------------
# If Client request is WorkOrderSubmit, a requester payload's
# signature with the requester private signing key is generated.
if "WorkOrderSubmit" in input_json_str1:
# Update workOrderId , workerId and workloadId
input_json_obj = json.loads(input_json_str1)
wo_id = hex(random.randint(1, 2**64 - 1))
input_json_obj["params"]["workOrderId"] = wo_id
input_json_obj["params"]["workerId"] = worker_obj.worker_id
# Convert workloadId to a hex string and update the request
workload_id = input_json_obj["params"]["workloadId"]
workload_id_hex = workload_id.encode("UTF-8").hex()
input_json_obj["params"]["workloadId"] = workload_id_hex
input_json_str1 = json.dumps(input_json_obj)
# Generate session iv an encrypted session key
session_iv = enclave_helper.generate_iv()
session_key = enclave_helper.generate_key()
encrypted_session_key = enclave_helper.generate_encrypted_key(
session_key, worker_obj.encryption_key)
input_json_str1, status = sig_obj.generate_client_signature(
input_json_str1, worker_obj, private_key, session_key,
session_iv, encrypted_session_key)
if status != SignatureStatus.PASSED:
LOGGER.info("Generate signature failed\n")
exit(1)
if input_json_str1 is None:
continue
# -----------------------------------------------------------------
# Update the worker ID
if response:
if "workerId" in input_json_str1:
# Retrieve the worker id from the "WorkerRetrieve"
# response and update the worker id information for
# further json requests.
if "result" in response and \
"ids" in response["result"].keys():
input_json_final = json.loads(input_json_str1)
worker_id = response["result"]["ids"][0]
input_json_final["params"]["workerId"] = worker_id
input_json_str1 = json.dumps(input_json_final)
LOGGER.info("********** Worker details Updated with "
"Worker ID*********\n%s\n",
input_json_str1)
# -----------------------------------------------------------------
if "WorkOrderGetResult" in input_json_str1 or \
"WorkOrderReceiptRetrieve":
input_json_obj = json.loads(input_json_str1)
input_json_obj["params"]["workOrderId"] = wo_id
input_json_str1 = json.dumps(input_json_obj)
LOGGER.info("*********Request Json********* \n%s\n",
input_json_str1)
response = uri_client._postmsg(input_json_str1)
LOGGER.info("**********Received Response*********\n%s\n", response)
# -----------------------------------------------------------------
# Worker details are loaded into Worker_Obj
if "WorkerRetrieve" in input_json_str1 and "result" in response:
worker_obj.load_worker(response["result"]["details"])
# -----------------------------------------------------------------
# Poll for "WorkOrderGetResult" and break when you get the result
while("WorkOrderGetResult" in input_json_str1 and
"result" not in response):
if response["error"]["code"] != WorkOrderStatus.PENDING:
break
response = uri_client._postmsg(input_json_str1)
LOGGER.info("Received Response: %s, \n \n ", response)
time.sleep(3)
# -----------------------------------------------------------------
# Verify the signature
if "WorkOrderGetResult" in input_json_str1:
if "error" in response:
# Response has error, hence skip Signature verification
LOGGER.info("Work order response has error; "
"skipping signature verification")
continue
sig_bool = sig_obj.verify_signature(
response['result'], worker_obj.verification_key)
try:
if sig_bool > 0:
LOGGER.info("Signature Verified")
enclave_helper.decrypted_response(
response['result'], session_key, session_iv)
else:
LOGGER.info("Signature verification Failed")
exit(1)
except Exception as e:
LOGGER.error("ERROR: Failed to analyze " +
"Signature Verification")
exit(1)
# -----------------------------------------------------------------
else:
LOGGER.info("Input Request %s", input_json_str)
response = uri_client._postmsg(input_json_str)
LOGGER.info("Received Response: %s , \n \n ", response)
exit(0)
def Main(args=None):
parser = GenericClient(args)
generic_client_obj = None
if parser.is_direct_mode():
generic_client_obj = DirectModelGenericClient(parser.get_config())
elif parser.get_blockchain_type() in ["fabric", "ethereum"]:
generic_client_obj = ProxyModelGenericClient(
parser.get_config(), parser.get_blockchain_type())
else:
logging.error("Invalid inputs to generic client")
sys.exit(-1)
# Retrieve JSON RPC uri from registry list
if not parser.uri() and parser.mode() == "listing":
self._uri = self.retrieve_uri_from_registry_list(self._config)
# Prepare worker
worker_id = parser.get_worker_id()
if worker_id is None:
logging.error("worker id is missing")
sys.exit(-1)
if worker_id is None:
logging.error("\n Unable to get worker {}\n".format(worker_id))
sys.exit(-1)
# Retrieve worker details
worker_obj = generic_client_obj.get_worker_details(worker_id)
if worker_obj is None:
logging.error("Unable to retrieve worker details\n")
sys.exit(-1)
# Create session key and iv to sign work order request
session_key = crypto_utility.generate_key()
session_iv = crypto_utility.generate_iv()
# Do worker verification
generic_client_obj.do_worker_verification(worker_obj)
logging.info(
"**********Worker details Updated with Worker ID" + "*********\n%s\n",
worker_id)
# Create work order
if parser.in_data_plain_text():
# As per TC spec, if encryptedDataEncryptionKey is "-" then
# input data is not encrypted
encrypted_data_encryption_key = "-"
else:
# As per TC spec, if encryptedDataEncryptionKey is not
# provided then set it to None which means
# use default session key to encrypt input data
encrypted_data_encryption_key = None
code, wo_params = generic_client_obj.create_work_order_params(
worker_id, parser.workload_id(), parser.in_data(),
worker_obj.encryption_key, session_key, session_iv,
encrypted_data_encryption_key)
if not code:
logging.error("Work order request creation failed \
\n {}".format(wo_params))
sys.exit(-1)
client_private_key = crypto_utility.generate_signing_keys()
if parser.requester_signature():
# Add requester signature and requester verifying_key
if wo_params.add_requester_signature(client_private_key) is False:
logging.info("Work order request signing failed")
sys.exit(-1)
submit_status, wo_submit_res = generic_client_obj.submit_work_order(
wo_params)
if submit_status:
# Create receipt
if parser.show_receipt():
generic_client_obj.create_work_order_receipt(
wo_params, client_private_key)
work_order_id = wo_params.get_work_order_id()
# Retrieve work order result
status, wo_res = generic_client_obj.get_work_order_result(
work_order_id)
# Check if result field is present in work order response
if status:
# Verify work order response signature
if generic_client_obj.verify_wo_response_signature(
wo_res['result'], worker_obj.verification_key,
wo_params.get_requester_nonce()) is False:
logging.error("Work order response signature"
" verification Failed")
sys.exit(-1)
# Decrypt work order response
if parser.show_decrypted_output():
decrypted_res = generic_client_obj.decrypt_wo_response(
wo_res['result'])
logging.info(
"\nDecrypted response:\n {}".format(decrypted_res))
else:
logging.error("\n Work order get result failed\n")
sys.exit(-1)
if parser.show_receipt():
# Retrieve receipt
retrieve_wo_receipt = \
generic_client_obj.retrieve_work_order_receipt(
work_order_id)
# Verify receipt signature
if retrieve_wo_receipt:
if "result" in retrieve_wo_receipt:
if generic_client_obj.verify_receipt_signature(
retrieve_wo_receipt) is False:
logging.error("Receipt signature verification Failed")
sys.exit(-1)
else:
logging.info("Work Order receipt retrieve failed")
sys.exit(-1)
else:
logging.error("Work order submit failed {}".format(wo_submit_res))
sys.exit(-1)
"D7NjawxG/zuji1+w8a6qt9P4uXzc44jIG4stYcoD+/UF6Jh6teWMnWyYLfcTf2Ec\n"\
"gEwdXQbJCl8z1p2N5eVHPZSh7lVD0euOIhhJRVwNWHVnoR4GALIgLOkqECV3RSjZ\n"\
"gTVuC8crfJBUt+zOpiXUv8DaD+kVdAdDdZlgHBW2K9gcivXDegAz84WPbhDrQ3CM\n"\
"M9SJ22B99CR1eG/ez/wzY0GiAZOCIB31IWk34Ehc8tTKjm8fVnXWvYJnXKxACnYd\n"\
"3isoueUA1x01+U0HDnY5ZR0CAwEAAQ==\n"\
"-----END PUBLIC KEY-----\n"
sig_obj = signature.ClientSignature()
# client values
worker_id = secrets.token_hex(32)
work_order_id = secrets.token_hex(32)
requester_id = secrets.token_hex(32)
requester_nonce = secrets.token_hex(16)
session_key = crypto_utility.generate_key()
session_iv = crypto_utility.generate_iv()
session_key_iv = crypto_utility.byte_array_to_hex(session_iv)
client_private_key = crypto_utility.generate_signing_keys()
client_public_key = crypto_utility.get_verifying_key(client_private_key)
# worker values
worker_nonce = secrets.token_hex(16)
worker_enc_key = rsa_public_key
worker_signing_key = crypto_utility.generate_signing_keys()
worker_verifying_key = crypto_utility.get_verifying_key(worker_signing_key)
# -----------------------------------------------------------------------------
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:
direct_wrapper.init_worker_registry_list(config)
registry_lookup_result = direct_wrapper.registry_lookup()
if (registry_lookup_result[0] == 0):
logger.warn("No registries found")
sys.exit(1)
registry_retrieve_result = direct_wrapper.registry_retrieve(
registry_lookup_result[2][0])
config["tcf"]["json_rpc_uri"] = registry_retrieve_result[0]
# Prepare worker
direct_wrapper.init_worker_registry(config)
global worker_id
if not worker_id:
worker_lookup_json = jrpc_request.WorkerLookupJson(
1, worker_type=1)
worker_lookup_result = direct_wrapper.worker_lookup(
worker_lookup_json)
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)
worker_retrieve_json = jrpc_request.WorkerRetrieveJson(2, worker_id)
worker_obj.load_worker(
direct_wrapper.worker_retrieve(
worker_retrieve_json)["result"]["details"])
logger.info("********** Worker details Updated with Worker ID" +
"*********\n%s\n", worker_id)
# Convert workloadId to hex
workload_id = "echo-result"
workload_id = workload_id.encode("UTF-8").hex()
# Create work order
wo_submit_json = jrpc_request.WorkOrderSubmitJson(
3, 6000, "pformat",
worker_id, workload_id, "0x2345",
worker_encryption_key=base64.b64decode(
worker_obj.worker_encryption_key).hex(),
data_encryption_algorithm="AES-GCM-256")
wo_id = wo_submit_json.get_work_order_id()
# Sign work order
private_key = utility.generate_signing_keys()
session_key = utility.generate_key()
session_iv = utility.generate_iv()
encrypted_session_key = utility.generate_encrypted_key(
session_key, worker_obj.worker_encryption_key)
# Generate one time key used for encrypting inData
data_key = utility.generate_key()
# Initialization vector of size 12 bytes with all zeros.
data_iv = bytearray(12)
encrypted_key = utility.generate_encrypted_key(
data_key, worker_obj.worker_encryption_key)
encrypted_data_encryption_key = utility.encrypt_data(
encrypted_key, session_key)
encrypted_data_encryption_key_str = ''.join(
format(i, '02x') for i in encrypted_data_encryption_key)
data_iv_str = ''.join(format(i, '02x') for i in data_iv)
wo_submit_json.add_in_data(
message, None, encrypted_data_encryption_key_str, data_iv_str)
# Submit work order
direct_wrapper.init_work_order(config)
direct_wrapper.work_order_submit(
wo_submit_json, encrypted_session_key, worker_obj, private_key,
session_key, session_iv, data_key, data_iv)
# Retrieve result
wo_get_result_json = jrpc_request.WorkOrderGetResultJson(4, wo_id)
direct_wrapper.work_order_get_result(
wo_get_result_json, session_key, session_iv, data_key, data_iv)
