def get_private_key_from_stretched_exponent(self, sequence, secexp):
order = generator_secp256k1.order()
- secexp = ( secexp + self.get_sequence(sequence) ) % order
+ secexp = ( secexp + self.get_sequence(sequence, self.master_public_key) ) % order
pk = number_to_string( secexp, generator_secp256k1.order() )
compressed = False
return SecretToASecret( pk, compressed )