密码学控选逻辑控制序列与输出序列的互信息

THE MUTUAL INFORMATION BETWEEN CONTROL AND OUTPUT SEQUENCES OF THE CONTROL-CHOICE CRYPTOGRAPHIC LOGIC

给出了密码学控选逻辑的概率模型,得到了密码学控选逻辑控制序列与输出序列互信息为零的充要条件,同时利用控制序列在输出序列上的信息泄漏,给出了分析密码学控选逻辑的一种方法。

This paper presents the probability model of the control-choice cryptographic logic. A necessery and sufficient condition is gained which satisfies that the mutual information is zero between control and output sequences of the control-choice cryptographic logic. By using the information leak between control and output sequences, a method of analysing the control-choice cryptographic logic is given.