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A semi-infrastructured ad hoc network is a wireless MANET subnetwork connected to a structured backbone network (LAN). This kind of network is becoming popular for low cost implementation and practicability issues. But the security is being considered as the major bottleneck of such semi-infrastructured Ad Hoc network. Uncontrolled access medium, dynamically changing topology, mobility of the hosts...
Our contribution in this paper is twofold: we first analyze the requirements of a secure distributed authentication system for MANETs, and then survey some of the existing certificate-based authentication mechanisms, by analyzing their features, including pros and cons, in the context of distributed authentication. Finally, a series of scenario-based simulation experiments and metrics are proposed...
Wireless sensor networks are widely used in a variety of commercial and military applications. As a fundamental requirement for providing security functionality in sensor networks, key management plays an essential role in authentication and encryption. In this paper, we propose a Refined Key Link Tree (RKLT) scheme that incorporates dirty key path into the key link tree-based group key management...
To set up various kinds of application system on moving Ad Hoc network, an effective mechanism for security assurance has to be provided. The paper puts forward the Plan for Threshold Identity Authentication that is based on partial Hash table without credibility center. The plan can effectively resist the external attack and passive attack from internal nodes, and thus improve the efficiency of various...
Vehicular ad hoc networks (VANETs) have many new characteristics unlike traditional network, such as centriclessness, mobility and multi-hop transmission, which invalidate conventional key managements. The fast development and successful application of trusted computing technology provide a potential solution to achieve effective authentication and trust evaluation. According to the VANETs with hierarchy...
We find that traditional authentication ways donpsilat act well in MANETs for the features of dynamic topology and non-existence of central facilities in mobile ad hoc networks. This paper presents a distributed trust proving language, which is based on role trust. The solution of constructing credential authentication infrastructure and the problem how to perform automated trust negotiation are also...
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