摘要
移动自组网Manet是一种新型的由移动节点为了某种特定目的而彼此进行连结的网络。与一般意义的网络相比较,移动Adhoc网络通常不提供对信任中心或中心服务器的在线访问,而且由于连接1和节点失效或者节点的漫游常常呈现频繁的网络分割,所以,传统的安全策略不能直接运用于该网络,必须添加新的安全措施。该文基于Manet的安全特性,根据信任分担思想,提出了一种基于安全可验证秘密共享的密钥管理方案,即将(n,t)门限秘密共享体制与可验证秘密共享VSS(VerifiableSecretSharing)相结合,实现密钥的安全分发和安全更新。
Mobile Ah Hoc Networks(Manet)is a new paradigm of wireless mobile networks temporarily formed by each-connected nodes for some special purpose.In contrast with conventional networks,Manet usually do not provide on-line access to trusted authorities or to centralized servers and exhibit frequent partitioning due to link and node failures and to node roam.For these reasons,traditional security solutions are not well-suited unless add some new security policy.In this paper,based the security character and the idea of trust sharing,we propose a key management solution based the combination of(n,t)threshold secret sharing cryptography and VSS that allows system to distribute and update the keys safely.
出处
《计算机工程与应用》
CSCD
北大核心
2004年第8期3-4,85,共3页
Computer Engineering and Applications
基金
国家863高技术研究发展计划项目(编号:2003AA142060)
关键词
移动自组网
信任分担
门限秘密共享体制
可验证秘密共享
Mobile ad hoc networks,Trust sharing,Threshold secret sharing cryptography,Verifiable secret sharing
