USM在Ad Hoc网络中的应用研究

Application of USM to AD Hoc network

根据Ad Hoc网络特性,在USM(User-based Security Model)安全框架上,采用基于CA(Certification Au-thority)信任分散的身份认证策略、组密钥管理框架、动态调整时间窗口大小和请求缓存中增加目标地址等方式构造了一个适合Ad Hoc网络的USM;USM保证了Ad Hoc网络消息的安全性;同时给出了加载USM后Ad Hoc网络的消息格式。最后,指出了USM对Ad Hoc网络性能方面的影响及其安全问题的进一步研究方向。

Based on the Ad Hoc network of the USM security framework the CA trust dispersible strategy, the nonsymmetric key digital signature authentication, the distributed group key management framework, the size of the time window dynamic adjusted and the target address increased in cache are used to construct a USM suited to the Ad Hoc network, Using the USM the security of the information Ad Hoc networks is guaranteed and the message format of the Ad Hoc network is analyzed, The research problems of the performance and security of the Ad Hoc network with USM are pointed out.