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Abstract:
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The management of broadcast-key is one of the most important security problems in the distributed wireless sensor networks. Firstly, the broadcast-key should be calculated and used by each node. Secondly, the broadcast-key should also be updated according to the variation of security condition. In this paper, we propose a new broadcast-key management scheme which has many advantages over the famous µTESLA protocol. The analysis in this paper demonstrates its feasibility, efficiency and security for broadcast-key establishment and renewing in distributed Wireless Sensor Networks.
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