数字签名首先需要生成消息摘要，然后发送方用自己的私钥对报文摘要进行加密，接收方用发送方的公钥验证真伪。生成消息摘要的算法为( ) ，对摘要进行加密的算法为( )。

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

Python标准库中提供了计算MD5摘要的方法md5（）。

MD5消息摘要的长度（）

MD5算法的HASH值长度为（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

MD5算法的输入是最大长度小于（）bit的消息，输出为（）bit的消息摘要。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。