def test_update_after_digest(self):
msg=b("rrrrttt")
# Normally, update() cannot be done after digest()
h = SHA3.new(data=msg[:4])
dig1 = h.digest()
self.assertRaises(TypeError, h.update, msg[4:])
dig2 = SHA3.new(data=msg).digest()
# With the proper flag, it is allowed
h = SHA3.new(data=msg[:4], update_after_digest=True)
self.assertEquals(h.digest(), dig1)
# ... and the subsequent digest applies to the entire message
# up to that point
h.update(msg[4:])
self.assertEquals(h.digest(), dig2)
def sign_transaction (self,transact):
hasher = SHA3_256.new()
if len(self.current_transactions) > 0:
transact_string = self.current_transactions[-1].hash . self.current_transactions.indexof(self.current_transactions[-1]) .
hasher.update(transact)
print(hasher.hexdigest())