文档介绍：摘要
摘要
由于无中心、移动性和自组性,使得Ad hoc网络在军用和民用领域的应用越来越宽广,同时由于其不依赖固定的基础设施和无线信道传输,导致Ad hoc网络很容易遭受到各种攻击和威胁,因而安全问题也成为当前该领域的研究热点之_。本文围绕Adhoe网络组密钥协商协议和基于身份的密钥撤销机制而展开的。
在现有文献的基础上,对Ad hoc网络中的组密钥协商协议和密钥撤销机制提出了自己的想法,首先提出一种基于的椭圆曲线的组密钥协议,然后提出了一轮基于双线性对的认证组密钥协议,最后提出了一种基于身份的密钥撤销机制,利用撤销表和撤销权值向量对网络节点之间的撤销关系和节点的可信度进行了描述, 并引入了四个因子啪1限制了单个节点的操作力度和节点的恶意行为,通过权值的迭代实现了权值不断的变化,增强了节点撤销的可靠性。同时在文中也指出了方案的不足,有待于进一步完善。
关键宇:Ad hoe网络 密钥协商 基于身份的 密钥撤销双线性对
Abstract
An Ad work iS a work with characteristics of no and anization SO that it Can quickly form a work without the support of work infrastructure,making them more attractive for military and civilian applications.Ⅵlile Ad works are even vulnerable to all kinds of attacks and threats,Because of their no dependence on fixed infrastructure and wireless channel
thus e one of the houeSt research in the field of Ad paper is about group key agreement protocols and key revocmion for Ad works.
Based on existing literature about group key agreements and key revocation mechanism for Ad works,a group key agreement based on Elliptic Curve Cryptography and one authenticated group key agreement Bilinear pairings based are
a key revocation for Identity-based schemes iS also the
algorithm,In order to describe revoking relationship and creditability of nodes, revocation matrix and weight vector are four revoking factors are also introduced to limit revoking strength of single node and improve united revoking strength By using iterative equations of node weight,which is updated continuously and
perhaps Can improve creditability of revocation of single the same
drawbacks are also pointed out which should be further studied.
Key words:Ad works Key Agreement Protocols Key Revocation Bilinear pairings
学位论文独创性声明
秉承学校严谨的学分和优良的科学道德,本人声明所呈交的论文是我个人在导师指导下进行的研究工作及取得的研究成果。尽我所知,除了文中特别加以标注和致谢中所罗列的内容以外,论文中不包含其他人已经发表或撰写过的研究成果;也不包含为获得西安电子科技大学或其它教育机构的学位或证书而使用