目前,安全问题已成为移动自组网应用的瓶颈,密钥管理是移动自组网安全的基础。在分析现有的移动自组网分布式信任方案基础上,结合撤销机制,提出一种有效的基于簇的密钥管理方案。该方案实现了节点之间的双向认证,能有效抑制拒绝服务攻击,适合大规模的移动自组网络。 At present, the security problem has become the bottleneck of MANET applications. Key management is the foundation of MANET security. Based on the analysis of the existing distributed trust scheme of mobile ad hoc networks and combining with the revocation mechanism, an effective key management scheme based on clusters is proposed. The scheme realizes two-way authentication between nodes, effectively suppresses denial of service attacks and is suitable for large-scale mobile ad-hoc networks.