def compute_pdo_add_enclave_signature(signing_key, verifying_key, contract_id, enclave_info_json_string):
signer = keys.ServiceKeys(crypto.SIG_PrivateKey(signing_key))
message = verifying_key + contract_id
message+= enclave_info_json_string
return signer.sign(message, encoding='raw')
def compute_pdo_update_contract_state_signature(signing_key, verifying_key, contract_enclave_id, contract_enclave_signature, \
state_update_info_string):
signer = keys.ServiceKeys(crypto.SIG_PrivateKey(signing_key))
message = crypto.string_to_byte_array(verifying_key + contract_enclave_id)
message += contract_enclave_signature
message += crypto.string_to_byte_array(state_update_info_string)
return signer.sign(message, encoding='raw')
def compute_pdo_signature_contract_registration(signing_key, verifying_key, contract_code_hash, \
provisioning_service_ids_array, nonce):
signer = keys.ServiceKeys(crypto.SIG_PrivateKey(signing_key))
message = crypto.string_to_byte_array(verifying_key) + contract_code_hash
for s in provisioning_service_ids_array:
message += crypto.string_to_byte_array(s)
message += crypto.string_to_byte_array(nonce)
return signer.sign(message, encoding='raw')
def compute_creator_initialize_state_signature(creator_signing_key,
contract_enclave_signature):
signer = keys.ServiceKeys(crypto.SIG_PrivateKey(creator_signing_key))
return signer.sign(contract_enclave_signature, encoding='raw')