Sonoko Takeda

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In mobile ad-hoc networks (MANETs), there are selfish nodes, which drop the received data packets, because nodes have limits of their resources. Secure routing protocols are developed as one of security mechanisms. In secure routing, each node can detect selfish nodes and decide secure paths by consulting trust values. Here, trust values express reliability(More)
In order to establish secure file-sharing in unstructured peer-to-peer networks, reputation aggregation methods are now focused on. In these methods, each peer calculates reputation values which denote the reliability and safety of peers participating in P2P networks. When peers exchange files, they can avoid transacting with the malicious peers by(More)
Reputation aggregation methods are used in unstructured peer-to-peer (P2P) networks to evaluate the trustworthiness of participating peers and to combat malicious peer's behaviors. In reputation aggregation methods, each peer collects local scores by each transaction and calculates global scores by aggregating local scores. In each transaction, global(More)
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