计算机科学 ›› 2014, Vol. 41 ›› Issue (10): 191-195.doi: 10.11896/j.issn.1002-137X.2014.10.042
曹晓梅,殷瑛
CAO Xiao-mei and YIN Ying
摘要： 针对机会网络的自组织性、开放性、连通性差等特点以及现有的基于上下文的路由协议中可能存在的隐私泄露等安全问题,提出了一种基于模糊身份密码学的身份认证方案F-ONIAS(Identity Authentication Scheme in Opportunistic Network Based on Fuzzy-IBE)。该方案通过一个无需实时在线的PKG为用户颁发私钥来解决机会网络中因节点无法实时连通而导致的传统非对称密码学方案不适用的问题。同时,将节点的生物信息作为身份标识,避免了传统身份密码学中身份信息可能被伪造而带来的安全隐患。仿真实验表明,在存在恶意节点的网络环境下,本方案比现有的经典路由协议方案拥有更高的报文投递率和更低的路由开销率,并且未对报文平均时延造成明显影响。
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