基于可编程逻辑器件的单向壳核函数构造方法

针对构造公钥密码时出现函数单向性和陷门性矛盾的问题, 通过引入单向壳核函数新型公钥密码体制, 根据可编程逻辑器件PLD的设计思想和结构
特征, 给出一种单向壳核函数的构造方法, 其安全性等同于一次一密. 与传统公钥密码体制相比, 单向壳核函数具有更广的包容性和更高的安全性, 是一种灵活性更强的公钥密码体制.

Construction Method of One-Way Shell Core Function Based on Programmable Logic Device

In view of the contradiction between one way and trapdoor occured on constructing public key cryptography,the author introduced a new type of public key cryptography that is one-way shell core function.According to the designing ideas and structural characteristics of programmable logic device(PLD),the paper presents a scheme of one-way shell core function and shows that its security is equal to that of one-time pad.Compared with the traditional public key cryptography,one-way shell core function has the characteristics of wider inclusivity,more change and higher security.The function provides people with a public key cryptography of more flexibility.