根据动态统计节点的行为,引入一种信任评估系统,使节点及时地发现网络中的恶意行为,保证在路由建立过程中各节点不承担过重的安全任务,降低路由协议的复杂度。在路由建立前,完成通信节点与CA的匿名双向认证,有效防止中间人的攻击。提出在路由表中存储节点匿名身份的哈希路由登记表,保证网络匿名安全性的同时,避免重复发起路由,提高路由查找的效率。基于Diffie-Hellman密钥交换算法,完成会话密钥协商。本协议结合对称密码体制和公钥密码体制,结构简单、有效。
A new secure and anonymous routing protocol based on trust valuation for mobile Ad-Hoc networks was presented.It introduces a system of trust valuation that could dynamic and in time discover malicious actions in networks and makes nodes free of overweight security processing.As a result,the low complexities of routing protocol can be achieved.Before established routing,there is completed the bidirectional anonymous authentication between CA and communication node.An anonymous identity of nodes presented by the hash routing was stored in routing table,it can effectively ensure the anonymous of the networks and avoid launching a routing request repeatedly so it improves the efficiencies.Based on the Diffie-Hellman key agreement arithmetic,the protocol set up the key agreement.The protocol combines with symmetric cryptographic algorithm and asymmetric cryptographic algorithm,it makes the structure of the protocol simple and availability.