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Many mission critical networks including MANETs for military communications and disaster relief communications rely on node cooperation. If malicious nodes gain access to such networks they can easily launch attacks, such as spreading viruses or spam, or attacking known vulnerabilities. One way to defend against malicious nodes is to use Reputation Systems (RS) that try to predict future behavior...
In mobile ad hoc networks (MANETs) and wireless sensor networks (WSNs), it is easy to launch various sophisticated attacks such as wormhole, man-in-the-middle and denial of service (DoS), or to impersonate another node. To combat such attacks from outsider nodes, we study packet authentication in wireless networks and propose a hop-by-hop, efficient authentication protocol, called HEAP. HEAP authenticates...
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