def test_hashchain_reveal(self):
seed = sha256(b'test_seed')
self.assertEqual('1d3b37dedc74980941b3b65640e8d2851658feac0d38196f372ada9c2ac0b077',
bin2hstr(hashchain_reveal(seed, 1, 100)))
self.assertEqual('127f5db0388cd82bd4af80b88e8d68409e1f70fd322f96b3f2aca55b0ade116f',
bin2hstr(hashchain_reveal(seed, 1, 0)))
self.assertEqual('ff7f4850bc6499e08e104c6967ee66e665e57d7e0e429072e646d14e1b92600a',
bin2hstr(hashchain_reveal(seed, 1, 50)))
self.assertNotEqual('ff7f4850bc6499e08e104c6967ee66e665e57d7e0e429072e646d14e1b92600a',
bin2hstr(hashchain_reveal(seed, 1, 51)))
def test_hashchain_reveal(self):
seed = sha256(b'test_seed')
self.assertEqual(
'1d3b37dedc74980941b3b65640e8d2851658feac0d38196f372ada9c2ac0b077',
bin2hstr(hashchain_reveal(seed, 1, 100)))
self.assertEqual(
'127f5db0388cd82bd4af80b88e8d68409e1f70fd322f96b3f2aca55b0ade116f',
bin2hstr(hashchain_reveal(seed, 1, 0)))
self.assertEqual(
'ff7f4850bc6499e08e104c6967ee66e665e57d7e0e429072e646d14e1b92600a',
bin2hstr(hashchain_reveal(seed, 1, 50)))
self.assertNotEqual(
'ff7f4850bc6499e08e104c6967ee66e665e57d7e0e429072e646d14e1b92600a',
bin2hstr(hashchain_reveal(seed, 1, 51)))
def create(activation_blocknumber: int,
xmss: XMSS,
slavePK: bytes,
hashchain_terminator: bytes = None):
"""
>>> s = StakeTransaction()
>>> slave = XMSS(4)
>>> isinstance(s.create(0, XMSS(4), slave.pk(), None), StakeTransaction)
True
"""
transaction = StakeTransaction()
transaction._data.addr_from = bytes(xmss.get_address().encode())
transaction._data.public_key = bytes(xmss.pk())
# Stake specific
transaction._data.stake.activation_blocknumber = activation_blocknumber
transaction._data.stake.slavePK = slavePK
if hashchain_terminator is None:
epoch = activation_blocknumber // config.dev.blocks_per_epoch
# FIXME: We are using the same xmss for the hashchain???
transaction._data.stake.hash = hashchain_reveal(
xmss.get_seed_private(), epoch=epoch)
else:
transaction._data.stake.hash = hashchain_terminator
# WARNING: These fields need to the calculated once all other fields are set
transaction._data.ots_key = xmss.get_index()
transaction._data.transaction_hash = transaction.calculate_txhash()
return transaction
def create(self,
blocknumber,
xmss,
slave_public_key,
hashchain_terminator=None,
first_hash=None,
balance=None):
"""
:param blocknumber:
:type blocknumber:
:param xmss:
:type xmss:
:param slave_public_key:
:type slave_public_key:
:param hashchain_terminator:
:type hashchain_terminator:
:param first_hash:
:type first_hash:
:param balance:
:type balance:
:return:
:rtype:
>>> s = StakeTransaction()
>>> slave = XMSS(4)
>>> isinstance(s.create(0, XMSS(4), slave.pk(), None, slave.pk(), 10), StakeTransaction)
True
"""
if not balance:
logger.info('Invalid Balance %d', balance)
raise Exception
self.slave_public_key = slave_public_key
self.epoch = blocknumber // config.dev.blocks_per_epoch # in this block the epoch is..
self.first_hash = first_hash
self.balance = balance
if hashchain_terminator is None:
self.hash = hashchain_reveal(xmss.get_seed_private(),
epoch=self.epoch + 1)
else:
self.hash = hashchain_terminator
tmphash = ''.join([bin2hstr(b) for b in self.hash])
if self.first_hash is None:
self.first_hash = tuple()
self.txhash = str2bin(tmphash + bin2hstr(self.first_hash) +
bin2hstr(self.slave_public_key))
self._process_XMSS(xmss.get_address(), self.txhash,
xmss) # self.hash to be replaced with self.txhash
return self
def create(blocknumber,
xmss,
slave_public_key,
hashchain_terminator=None,
first_hash=None,
balance=None):
"""
>>> s = StakeTransaction()
>>> slave = XMSS(4)
>>> isinstance(s.create(0, XMSS(4), slave.pk(), None, slave.pk(), 10), StakeTransaction)
True
"""
if not balance:
logger.info('Invalid Balance %d', balance)
raise Exception
transaction = StakeTransaction()
transaction.txfrom = xmss.get_address()
transaction.slave_public_key = slave_public_key
transaction.epoch = blocknumber // config.dev.blocks_per_epoch # in this block the epoch is..
transaction.balance = balance
transaction.first_hash = first_hash
if transaction.first_hash is None:
transaction.first_hash = tuple()
transaction.hash = hashchain_terminator
if hashchain_terminator is None:
transaction.hash = hashchain_reveal(xmss.get_seed_private(),
epoch=transaction.epoch + 1)
transaction.PK = xmss.pk()
transaction.ots_key = xmss.get_index()
tmppubhash = transaction._get_pubhash()
tmptxhash = ''.join([bin2hstr(b) for b in transaction.hash])
tmptxhash = str2bin(tmptxhash + bin2hstr(transaction.first_hash) +
bin2hstr(transaction.slave_public_key))
transaction.txhash = transaction._get_txhash(tmptxhash, tmppubhash)
return transaction