一个基于离散对数、HASH函数和大数分解的访问控制协议

An Access Control Protocol Based on Discrete Logarithm,Hash Function and Factorization

在一个开放的网络系统中,计算机为对要求登录的用户实现访问控制,必需通过身份验证来鉴定用户。出于安全的考虑,用于身份验证的用户ID和保密字要以密文的形式存放在登录文件中。文章给出了将有限域上n次不可约多项式的个数作为一个密钥来对ID和用户保密字进行加密的方法和一个基于离散对数和Hash函数的访问控制协议。在协议中,利用有限域上n次不可约多项式的个数对允许登录用户的访问权限进行了划分。

In an open network system,to c arry out access control to the incredible users,the″Identity Verification″is necessary.The ID and password in identity verification should be encrypted and then saved in the logging files.The pre-sented context proposes one kind of e ncryption method based on the computation of the number of n monic irreducible p olynomials in a finite field,and an access control protocol based on Discrete L ogarithm and Hash Function.In this pro-tocol,the number of n monic irreducibl e polynomials in a finite field is used to distinguish the access authority of t he users who are admitted to log in the hosts.