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The recommendation trust value is generally gotten by broadcasting request and collecting response from other nodes, so the results that returned by this method is uncertain and can't avoid being the malice recommendation. A new recommendation trust model is proposed in the paper basing on aggregate signature. The node trust values which include interactive node's signature are stored in local. When a node sends request for a trust value, the communication node sends all interactive node's recommendation trust value with the aggregate signature to the request node for verification. The method guarantees that the node can get all of the recommended trust value of other node, and the analysis indicates that the performance of this scheme is efficient . The scheme can solve many kinds of secure questions including the malicious broadcast, selfishness and so on. So, the scheme is suitable for the Ad hoc network.
Date of Conference: 23-25 Sept. 2010