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Mobile ad hoc networks (MANET) is a new networking paradigm for wireless hosts. Because of infrastructureless, self-organization, dynamic topology and openness of wireless links, the routing security problem in MANET is more seriously than in wired networks. Optimized link state routing (OLSR) (T. Clausen et al., 2003) is proposed by IETF's MANET Group at(More)
Neighbor Discovery is a fundamental building block in Wireless Ad Hoc Networks. But the very nature of wireless mobile networks makes it easy to abuse neighbor discovery, such as the wormhole attack which relaying the HELLO packet between two far away nodes make them establishing the neighborship, and thus disrupting the routing function. In this paper, we(More)
Establishing high performance cooperation and estimating the nodes’ risk in mobile ad hoc networks (MANETS) is currently fundamental and challenging due to the inherent characteristics of MANETS, such as highly dynamic topology and absence of an effective security mechanism. Trust based assessment methods were recently put forward but presumed(More)
In 2007, Goyal introduced a new and creative approach, called accountable authority identity-based encryption (referred to as A-IBE), to reduce the degree of trust that must be placed in the private-key generator (PKG) in an identity-based encryption (IBE) scheme. Based on his work, a new universal A-IBE scheme is proposed in this paper. Compared with(More)
Commit-Prove-Fair-Open functionality Ou Ruan , Cai Fu a,* , Guohua Cui a a College of Compute Science & Technology, Huazhong University of Science & Technology, Wuhan, China, 430074 b College of Compute Science & Technology, Hubei University of Technology, Wuhan, China, 430068 ruanou@21cn.com, 12695133@qq.com,cgh3986@126.com *:Corresponding author: Cai Fu ,(More)