def _outputid_new(self, specifier, index):
encoder = encoder_sia_get()
encoder.add_array(specifier)
encoder.add_array(self._id_input_compute())
encoder.add_int(index)
hash = bytearray.fromhex(blake2_string(encoder.data))
return Hash(value=hash)
def signature_hash_get(self, *extra_objects):
"""
signature_hash_get is used to get the signature hash for this Transaction,
which are used to proof the authenticity of the transaction.
"""
input = self._signature_hash_input_get(*extra_objects)
return bytes.fromhex(blake2_string(input))
def _checksum(self):
if self._type == UnlockHashType.NIL:
return b'\x00' * UnlockHash._CHECKSUM_SIZE
e = encoder_rivine_get()
e.add_int8(int(self._type))
e.add(self._hash)
return bytearray.fromhex(blake2_string(e.data))
def from_unlockhash(cls, unlockhash):
"""
Create an ERC20 Address from a TFT Address (type: UnlockHash).
"""
e = encoder_sia_get()
unlockhash.sia_binary_encode(e)
hash = bytes.fromhex(blake2_string(e.data))
return cls(value=hash[Hash.SIZE - ERC20Address.SIZE:])
def unlockhash(self):
uhs = sorted(self.unlockhashes, key=lambda uh: str(uh))
tree = MerkleTree(hash_func=lambda o: bytes.fromhex(blake2_string(o)))
tree.push(sia_encode(len(uhs)))
for uh in uhs:
tree.push(sia_encode(uh))
tree.push(sia_encode(self.required_signatures))
return UnlockHash(type=UnlockHashType.MULTI_SIG, hash=tree.root())
def unlockhash(self):
e = encoder_rivine_get()
self.sia_binary_encode_data(e)
# need to encode again to add the length
data = e.data
e = encoder_sia_get()
e.add_slice(data)
hash = bytearray.fromhex(blake2_string(e.data))
return UnlockHash(type=UnlockHashType.ATOMIC_SWAP, hash=hash)
def test_basic_merkletree():
tree = Tree(hash_func=lambda o: bytes.fromhex(blake2_string(o)))
tree.push(bytearray([1]))
tree.push(bytearray([2]))
tree.push(bytearray([3]))
tree.push(bytearray([4]))
tree.push(bytearray([5]))
root = tree.root().hex()
assert root == '0002789a97a9feee38af3709f06377ef0ad7d91407cbcad1ccb8605556b6578e'
print('Root is {}'.format(root))
def unlockhash(self):
"""
Return the unlock hash generated from this public key.
"""
e = encoder_sia_get()
self.sia_binary_encode(e)
# need to encode again to add the length
data = e.data
e = encoder_sia_get()
e.add_slice(data)
hash = bytearray.fromhex(blake2_string(e.data))
return UnlockHash(type=UnlockHashType.PUBLIC_KEY, hash=hash)