基于网格的Ad Hoc网络签密算法及应用  

Grid-based Identity Signcryption Algorithm and Application in Ad Hoc Network

作　　者：陈少华[1] 樊晓光[1] 丛伟[1] 黄金科[1] 孙贤明[1] 

机构地区：[1]空军工程大学航空航天工程学院,西安710038

出　　处：《计算机科学》2017年第6期168-173,共6页Computer Science

基　　金：国家自然科学基金(61402517);中航工业集团预研基金资助项目(619010601)资助

摘　　要：基于身份的签密算法具有计算开销小的优点,适用于Ad Hoc网络的密钥管理,能有效确保消息的机密性和认证性。针对现有基于身份的签密算法的不足,以低负载、可扩展性强、高连通性的网格为逻辑结构,提出了一种高效的基于网格的签密算法,并将其应用于Ad Hoc网络的密钥管理中,降低了系统密钥管理的通信代价和计算代价。经分析表明,在随机预言机模型下该签密算法是安全的,相应的密钥管理方案比传统方案更安全高效,网络的抗攻击能力更强。Identity-based signcryption has the advantage of low computation cost,which is suitable for the key management of Ad Hoc network and can guarantee the confidentiality and authentication of information.Aiming at the deficiencies of the existing identity-based signcryption algorithm,taking agrid as the logical structure,which has the advantages of low overhand,high expandability and high connectivity,this paper proposed an efficient grid-based identity signcryption algorithm.By using this algorithm in the key management scheme of Ad Hoc network,the scheme reduces the communication and computation cost of key management.The analysis show that the signcryption algorithm is secure in the random oracle model,the key management is more safe and efficient,and the Ad Hoc network has good ability of resistance to the attack.

关 键 词：Ad HOC网络 网格 签密 密钥管理 随机预言模型 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]