基于单向函数树的多播密钥管理方案安全性分析  

Security analysis of a key management scheme for multicast based on the one-way function tree

作　　者：陈璟[1] 杨波[1] 田春岐[1] 

机构地区：[1]西安电子科技大学计算机网络与信息安全教育部重点实验室,陕西西安710071

出　　处：《西安电子科技大学学报》2004年第6期959-962,共4页Journal of Xidian University

摘　　要：对SMuG的草案之一的基于单向函数树(OFT)的密钥管理方案的安全性进行了详细的分析,指出了OFT方案在实现前向安全和后向安全上的漏洞,提出了可以实现完整的前向安全和后向安全的OFT改进方案.Multicast is the basis for many new applications in the internet, and key management is one of the key research areas of multicast security. We particularly analyze the security of the key management scheme based on the one-way function tree (OFT), which is one of the drafts of SMuG, and point out the vulnerabilities in providing forward security and backward security. An improved scheme for providing real forward security and backward security is also proposed.

关 键 词：单向函数树 多播安全 密钥管理 前向安全 后向安全 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]