def test_signature_validate(self):
""" GIVEN success tx, invalid public key tx, invalid signature tx,
WHEN validate 3 tx
THEN only success tx validate return true
"""
# GIVEN
# init peer_auth for signautre
peer_auth = PeerAuthorization(public_file=conf.PUBLIC_PATH,
pri_file=conf.PRIVATE_PATH,
cert_pass=conf.DEFAULT_PW)
# create txs
success_tx = test_util.create_basic_tx("aaa", peer_auth)
# public key and signature property must don't have setter
invalid_public_tx = test_util.create_basic_tx("aaa", peer_auth)
invalid_public_tx._Transaction__public_key = b'invalid_public'
invalid_sign_tx = test_util.create_basic_tx("aaa", peer_auth)
invalid_sign_tx._Transaction__signature = b'invalid_sign'
# WHEN THEN
self.assertTrue(Transaction.validate(success_tx))
logging.debug("start validate invalid public key")
self.assertFalse(
Transaction.validate(invalid_public_tx, is_exception_log=False))
logging.debug("start validate invalid signature")
self.assertFalse(
Transaction.validate(invalid_sign_tx, is_exception_log=False))
def put_transaction(self, tx):
"""Block Generator 에서만 사용한다.
tx는 단수 혹은 여러개 일 수 있다
:param tx: transaction (transaction을 담고 있는 list도 처리 가능)
:return: True: 성공적으로 담겼을 때.
"""
if type(tx) is list:
result = True
for t in tx:
result &= self.put_transaction(t)
return result
elif not isinstance(tx, Transaction):
logging.error("트랜잭션 타입이 아님 %s", type(tx))
return False
# TX 검증은 현재 받아들인 TX의 Hash값(Peer 생성)과
# block generator (leader) 에서 만든 Hash 값이 일치하는지 확인 후 block 에 추가합니다.
# TX 는 최초 생성한 Peer 에서 block 에 담겨오는지 여부를 확인 할 때까지 보관해야 합니다. (TODO)
if tx.status == TransactionStatus.unconfirmed:
# transaction 검증
# logging.debug("Transaction Hash %s", tx.get_tx_hash())
if Transaction.validate(tx):
tx.status = TransactionStatus.confirmed
else:
return False
# Block 에 검증된 Transaction 추가 : 목록에 존재하는지 확인 필요
if tx not in self.confirmed_transaction_list:
self.confirmed_transaction_list.append(tx)
return True
def validate(block, tx_queue=None) -> bool:
"""validate block and all transactions in block
:param: block
:param: tx_queue
:return validate success return true
"""
mk_hash = Block.__calculate_merkle_tree_root_hash(block)
if block.height == 0 and len(block.confirmed_transaction_list) == 0:
# Genesis Block 은 검증하지 않습니다.
return True
if len(block.confirmed_transaction_list) > 0:
# 머클트리 검증은 Tx가 있을때에만 합니다.
if mk_hash != block.merkle_tree_root_hash:
raise BlockInValidError('Merkle Tree Root hash is not same')
if block.block_hash != Block.__generate_hash(block):
raise BlockInValidError('block Hash is not same generate hash')
leader = ObjectManager().peer_service.channel_manager.get_peer_manager(
block.__channel_name).get_leader_object()
if not leader.cert_verifier.verify_hash(block.block_hash,
block.signature):
raise BlockInValidError('block signature invalid')
if block.time_stamp == 0:
raise BlockError('block time stamp is 0')
if len(block.prev_block_hash) == 0:
raise BlockError('Prev Block Hash not Exist')
# Transaction Validate
confirmed_tx_list = []
for tx in block.confirmed_transaction_list:
if Transaction.validate(tx):
confirmed_tx_list.append(tx.tx_hash)
else:
raise BlockInValidError(
f"block ({block.block_hash}) validate fails \n"
f"tx {tx.tx_hash} is invalid")
if tx_queue is not None:
block.__tx_validate_with_queue(tx_queue, confirmed_tx_list)
return True
