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移动Ad Hoc网络是不需要网络基础设施的网络,适用于一些无法或不方便预先铺设网络设施的场合。Ad Hoc网络中所有结点的地位是平等的,节点不仅具有终端的功能,而且具有报文转发的能力。由于网络中各节点的安全都具备不确定性,Ad Hoc的网络安全一直是研究的热点,而粗糙集是作为研究不确定性和不完备信息的一种较新的数学工具。本文以粗糙集理论分析和研究网络节点的安全性问题,进行节点的安全性评价。 相似文献
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移动Ad Hoc网络采用独立性较强的组网方式,是一种具有高动态化的拓扑结构、无有线基础设施加以支持的无线网络技术,广泛应用于军事领域并不断地向民用环境下拓展。本文在对路由协议形式化的分析方法进行介绍的基础上,分析了现有的路由安全威胁模型的缺陷并提出更具适应性的层次化威胁模型。 相似文献
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《电子技术与软件工程》2013,(21)
本文在总结阐释Ad Hoc无线移动网络及其特点的基础上,对不同的Ad Hoc无线移动网络路由协议进行了比较分析,并展望了Ad Hoc无线移动网络路由协议技术的未来发展。 相似文献
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Ad Hoc网络是无线局域网领域的研究重点,因其可以在任何时候、任何地点快速构建的特点得到了广泛的应用。本文首先介绍了Ad Hoc网络的概念、主要特点和网络结构,然后,文章介绍了Ad Hoc网络的路由协议,并详细列出了几种分层协议的内容。 相似文献
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一种移动Ad Hoc网络路由和数据安全方案设计 总被引：1，自引：0，他引：1
为了解决移动Ad Hoc网络所面临的路由安全和数据安全问题,基于加密技术,结合路由安全和数据安各自的特点,提出了一种简易、高效、可靠的路由和数据安全解决方案.针对路由安全,合理地采用基于非对称加密的路由测试认证;针对数据安全,采用基于对称加密的数据保护,节省了网络开销,并且在路由认证测试消息中封装对称密的密钥一起发送给解密方目的节点,巧妙利用非对称加密加强了对称加密密钥的安全性,弥补了对称加密的不足,进一步增强了数据安全.两种加密技术各展所长,相辅相成.通过GloMoSim仿真实验表明,该方案具备较高的安全性. 相似文献
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Ad hoc网络安全与攻击探讨 总被引：6，自引：0，他引：6
介绍了Ad hoc网络的体系结构和特点,分析了其存在的网络安全问题,总结了对Ad hoc网络的多种攻击方法,并提出了几种改善Ad hoc网络安全的策略。 相似文献
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移动自组网(Mobile Ad HoC Network)是一种无基础设施的无线网络由于它具有开放的媒质、分布式的合作、动态的拓扑结构和受限的网络能力等特点,所以特别容易受到攻击.为此文章结合移动Ad Hoc网络的特点分析了移动Ad Hoc网络面临的安全威胁,并对移动Ad Hoc网络的安全路由和安全报文传送问题进行了详细讨论. 相似文献
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Ad Hoc网络的安全机制 总被引：2，自引：0，他引：2
移动Ad Hoc网络是一种特殊的多跳移动无线网络,具有广泛的应用场合,其安全问题一直是影响其大规模发展的重要因素。本文探讨了移动Ad Hoc网络特有的各种安全漏洞以及相应的对策中存在的各种不足,并与现有网络中的安全对策进行了较深入的比较,完善了现有体系中的安全机制。 相似文献
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移动无线Ad Hoc网络中的路由安全问题 总被引：2，自引：0，他引：2
由于移动无线Ad Hoc网络具有动态拓扑结构、缺少中心鉴权等特点，面临多种安全问题，更导致路由安全性上升到重要的地位。其主要的三种路由协议（DSDV，AODV和DSR）对安全方面考虑不够。最后详细分析了常见的“黑洞”攻击问题，并介绍了一种基于按需距离矢量路由协议的解决方案。 相似文献
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The network addresses of principals in a mobile ad hoc network (MANET) are conventionally assumed to be public information.
This may cause devastating consequences for MANETs deployed in hostile environments. For example, attackers can easily locate
a target principal based his known network address and then launch a pinpoint attack. This paper identifies address privacy as a new security requirement to prevent attackers from ascertaining network addresses of MANET principals. We further present
Swarms, the first solution to satisfying this requirement. Swarms eliminates the conventionally explicit one-on-one mappings between
MANET principals and network addresses and allows any two principals to communicate while blind to each other’s address. We
quantitatively measure the address privacy offered by Swarms via an entropy-based information-theoretic metric.
Yanchao Zhang received the BE degree in computer communications from the Nanjing University of Posts and Telecommunications, Nanjing, China, in July 1999, the ME degree in computer applications from the Beijing University of Posts and Telecommunications, Beijing, in April 2002, the PhD degree in electrical and computer engineering from the University of Florida, Gainesville, in August 2006. Since then, he has been an assistant professor in the Department of Electrical and Computer Engineering, New Jersey Institute of Technology. His research interests include network and distributed system security, wireless networking, and mobile computing. He is an Associate Editor of IEEE Transactions on Vehicular Technology and has served as a TPC member for many conferences, including INFOCOM, MOBIHOC, ICDCS, and IWQoS. He is a member of the IEEE and the ACM. Kui Ren is an assistant professor in the Electrical and Computer Engineering Department at Illinois Institute of Technology. He obtained his PhD degree in Electrical and Computer Engineering from Worcester Polytechnic Institute in 2007. He received his B. Eng and M. Eng both from Zhejiang University in 1998 and 2001, respectively. In the past, he has worked as a research assistant at Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, at Institute for Infocomm Research, Singapore, and at Information and Communications University, South Korea. His research interests include network security & privacy and applied cryptography with current focus on security & privacy in cloud computing, lower-layer attack & defense mechanisms for wireless networks, and sensor network security. His research is sponsored by US National Science Foundation. He serves as TPC member for many conferences including INFOCOM, ICDCS, WiSec, AsiaCCS, MASS, IWQoS, Securecomm, etc. He is a member of IEEE and ACM. 相似文献
| Kui RenEmail: |
Yanchao Zhang received the BE degree in computer communications from the Nanjing University of Posts and Telecommunications, Nanjing, China, in July 1999, the ME degree in computer applications from the Beijing University of Posts and Telecommunications, Beijing, in April 2002, the PhD degree in electrical and computer engineering from the University of Florida, Gainesville, in August 2006. Since then, he has been an assistant professor in the Department of Electrical and Computer Engineering, New Jersey Institute of Technology. His research interests include network and distributed system security, wireless networking, and mobile computing. He is an Associate Editor of IEEE Transactions on Vehicular Technology and has served as a TPC member for many conferences, including INFOCOM, MOBIHOC, ICDCS, and IWQoS. He is a member of the IEEE and the ACM. Kui Ren is an assistant professor in the Electrical and Computer Engineering Department at Illinois Institute of Technology. He obtained his PhD degree in Electrical and Computer Engineering from Worcester Polytechnic Institute in 2007. He received his B. Eng and M. Eng both from Zhejiang University in 1998 and 2001, respectively. In the past, he has worked as a research assistant at Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, at Institute for Infocomm Research, Singapore, and at Information and Communications University, South Korea. His research interests include network security & privacy and applied cryptography with current focus on security & privacy in cloud computing, lower-layer attack & defense mechanisms for wireless networks, and sensor network security. His research is sponsored by US National Science Foundation. He serves as TPC member for many conferences including INFOCOM, ICDCS, WiSec, AsiaCCS, MASS, IWQoS, Securecomm, etc. He is a member of IEEE and ACM. 相似文献
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移动Ad Hoc网络是一个自组织系统,是由许多无线移动主机组成的一个临时动态网络,且不依赖于任何中心化的接入点和网络基础设施。对于这样一个网络,一个有效的路由协议对于适应主体的移动性以及为可能的链路提供可行的数据传输是非常必要的。限定路由协议的因素可归为两类,即无线传输过程中的衰退作用和网络拓扑的边缘效应。现存的各种路由协议着重从不同的角度来实现各自的功能。路由协议可分为两部分,路由发现和路由维护,而路由发现是其中的关键部分。 相似文献
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WANG Mao-ning 《中国电子科技》2005,3(4):304-309
A novel scheme is presented to integrate mobile ad hoc networks （MANETs） with the lnternet and support mobility across wireless local area networks （WLANs） and MANETs. The mobile nodes, connected as a MANET, employ the optimize d link state routing （OLSR） protocol for routing within the MANET. Mobility management across WLANs and MANETs is achieved through the hierarchical mobile IPv6 （HMIPv6） protocol. The performance is evaluated on a HMIPv6 based test-bed composed of WLANs and MANETs. The efficiency gain obtained from using HMIPv6 in such a hybrid network is investigated. The investigation result shows that the use of HMIPv6 can achieve up to 27% gain on reducing the handoff latency when a mobile roams within a domain. Concerning the reduction of the signaling load on the lnternet, the use of HMIPv6 can achieve at least a 54% gain and converges to 69%. 相似文献