基于HFE公钥密码的单向壳核函数构造方案

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，提出了一种新型的公钥密码体制——单向壳核函数。根据HFE公钥密码的设计思想和结构特征，给出了单向壳核函数的构造方案，并研究了其能抵抗现有的主要攻击方法。与传统公钥密码体制相比，单向壳核函数包容性更广，变化更多，安全性更高，为人们提供了一种灵活性更强的公钥密码体制。

Construction Method of One-Way Shell Core Function Based on HFE Public Key Cryptography

Because of the contradiction between one way and trapdoor when we construct public key cryptography will turn up. a new type of public key cryptography with one-way shell core function is proposed. According to the designing ideas and structural characteristics of HFE public key cryptography, the paper presents a scheme of one-way shell core function and shows that the function can resist the present main attack methods. Comparing 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.