用DS2432实现双向认证及软件功能保护  

The implementation of two-way authentication and secure soft-feature protection by DS2432

作　　者：罗敬[1] 张益星[1] 

机构地区：[1]湖南工程学院,湖南湘潭411101

出　　处：《电子技术应用》2007年第10期141-144,共4页Application of Electronic Technique

摘　　要：介绍了一种应用DS2432器件实现双向认证及软件功能保护的方法。首先分析了信息认证的基本计算模型,然后应用DS2432器件并使用SHA-1算法实现了1-Wire网络的安全认证。分析了其质询-响应认证过程,从而得出可将系统密钥存放在安全存储器中,而不必存放在程序代码内。这种系统便于扩展,DS2432的数据安全性甚至可以实现远程配置信息修改,节省设计时间,实现了低成本的安全认证功能。A novel method to implement two-way authentication and soft-feature protection by DS2432 is presented. The basic principle of algorithm is analyzed, and a novel secure authentication in 1-Wire DS2432 net is implemented by using SHA-1 algorithm and DS2432. It＇s challenge and response process is analyzed, the system secret key can be stored in secure memory instead of being stored as program code. The system can be extended easily, the data secure of DS2432 is even modified by remote configuration, and the secure authentication at the low cost is implemented in the system.

关 键 词：认证 密钥 SHA-1算法 信息认证码MAC 1-WIRE 数据安全 

分 类 号：TP317[自动化与计算机技术—计算机软件与理论]