基于辫子群上的公钥加密算法的Kerberos协议改进  

Improved Kerberos protocol based on public key encryption algorithm of braid groups

作　　者：陈潇君[1] 鞠时光[1] 陈祖爵[1] 

机构地区：[1]江苏大学计算机科学与通信工程学院,江苏镇江212013

出　　处：《计算机工程与设计》2009年第3期555-556,560,共3页Computer Engineering and Design

基　　金：国家自然科学基金项目(40674060)

摘　　要：为提高Kerberos协议的安全性,引入了辫子群上非共轭变换和多变量方程组结合所构造的难解问题,提出了一种基于辫子群上的公钥加密算法的Kerberos协议和基于此协议的公钥体系KBGS(Kerberos on braid groups system),系统主要加强了客户和认证中心之间的通讯安全强度。安全性分析结果表明,改进后的Kerberos协议能抵御高强度的明文攻击,适用于量子计算机时代的公钥密码平台,更具安全性和实用性。To improve the security of Kerberos protocol, the hard problem is adopted which is constructed by combining the non-conjugate transformation and multi-variable equations based on braid groups, the public key encryption algorithm Kerberos protocol and the KBGS （Kerberos on braid groups system） based on this protocol is proposed, the system strengthens the communication safety intensity between the client and the certification center. The results show that the improved Kerberos protocol can resist high-intensity clear text attacks, and it can be well applied to PKI platform of the quantum computer, therefore, it has more security and practicality.

关 键 词：辫子群 RSA 公钥加密 KERBEROS协议 身份认证 

分 类 号：TP309.2[自动化与计算机技术—计算机系统结构]