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One of the key challenges in operational trust management is to continually monitor the behavior of a node and update its trust score accordingly - evidently, both speed and accuracy is of great importance here. To achieve these goals, several papers have explored the concept of mutual revocation (sometimes termed suicide) wherein the trust value of both the accuser and the accused node are temporarily...
Source location privacy is an important issue in sensor network monitoring applications. It is difficult to be addressed by traditional security mechanisms, because an external attacker may perform simple traffic analysis to trace back to the event source. Solutions such as flooding or using dummy messages have the drawback of introducing a large amount of message overhead. In this paper, we avoid...
For sensor networks deployed to monitor and report real events, event source anonymity is an attractive and critical security property, which unfortunately is also very difficult and expensive to achieve. This is not only because adversaries may attack against sensor source privacy through traffic analysis, but also because sensor networks are very limited in resources. As such, a practical tradeoff...
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