3 y��b� � @ s� d dl Z d dlZd dlmZ d dlZddlmZ ddlmZ ej gZ ejrVe jej � ejjde �dd� �Zd d � Zdd� ZdS ) � N)� unhexlify� )� checksums)� bin_to_hex�implementationc . C sL t jd�}t|�}d}x0tdd�D ]"}xd0D ]}|||| � }q,W q"W d S )1Ni, ixV4r � � r � � � � � � � � � �! �"