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Maintaining security associations (SA) in mobile ad hoc networks (MANET) is challenging due to their intrinsically open, dynamic, and decentralized nature. Bandwidth limitations arising from both the physical characteristics of the wireless medium and the control overhead required to maintain routes in a network with changing topology add another level of difficulty to the problem. While establishing...
A Security Association (SA), established by strong authentication, between a node pair in a Mobile Ad hoc Network (MANET) could be lost when its route is disconnected. In contrast, in good channel conditions and stable topology, routing protocols such as the Optimized Link State Routing (OLSR) do not refresh routes periodically, and in doing so, an SA bound to these routes could become stale and out...
This paper put forward a secure Ad Hoc On-Demand Routing (SAHODSR) protocol which adapts for Ad hoc network aiming at the mobile ad hoc network(MANET) routing protocol attacks and typical routing scheme of security problems. This protocol uses serial number of destination node, list session keys of neighbor nodes between the mobile nodes and message authentication code(HMAC) based on hash function...
Security issues of text watermarking are greatly different from those of other multimedia watermarking, in terms of its specific requirements and characteristics of text watermarking. The security theory of text watermarking is proposed in this paper, and the following security topics are discussed: (i) the classification and application of text watermarking; (ii) the classification and analysis of...
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