def _sighash_final_hashing(self, index: int, copy_tx: 'DecredTx',
sighash_type: int) -> bytes:
sighash = DecredByteData()
sighash += utils.i2le_padded(sighash_type, 4)
sighash += copy_tx.prefix_hash()
sighash += copy_tx.witness_signing_hash()
return utils.blake256(sighash.to_bytes())
def witness_signing_hash(self):
return utils.blake256(self.witness_signing())
def witness_hash(self):
return utils.blake256(self.witness())
def prefix_hash(self):
try:
return self.tx_id_le # Prevent redundant hashing
except AttributeError:
return utils.blake256(self.prefix())