摘要
PPTP协议可以较好地保证VPN中的数据在传输过程中的安全性,但是传统的静态密码在身份认证时依然存在不少安全隐患。针对VPN的安全需求,提出了基于混沌理论的一次一密动态密码,构造了基于混沌理论的用户身份“指纹”的认证算法以及身份认证双方的混沌同步算法,把演化、发展的混沌序列作为用户的身份“指纹”,实现了身份“指纹”的无约定动态变化,增强了VPN的安全性。
Point-to-point tunneling protocol can be used to ensure the security of data in virtual private network during transmission, but so many safety problems still existed in traditional static passwords for identity authentication. In view of the security needs of VPN, Chaos theory-based dynamic password is proposed, a chaos theory-based authentication algorithm of user＇s identity ＂finger-print＂ is constructed and a synchronization algorithm is constructed to confirm each others identity. Evolutive and developmental chaotic sequence are put as user＇s identity ＂fingerprint＂ to enhance the security of the VPN.
出处
《计算机工程与设计》
CSCD
北大核心
2007年第14期3347-3350,共4页
Computer Engineering and Design
基金
湖北自然科学基金项目(2005ABA235)
湖北省教育厅自然科学重点计划基金项目(Z200511005)
关键词
动态密码
混沌
一次一密
身份认证
同步算法
dynamic password
chaos
one-time one-password
identity authentication
synchronization algorithm
