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This paper present a novel packet delivery mechanism only using local information for probabilistic non-dominated guarantee of high data confidentiality and reliability in wireless sensor networks. In the data confidentiality domain, a secret message is transformed into multiple shares by secret sharing schemes and then forwarding towards destination via multiple neighbours so that even if a small number of relay nodes are compromised, the secret as a whole is not compromised. In the reliable domain, various reliability requirements are supported by probabilistic multipath forwarding in a localized way by employing localized geographic packet forwarding. However, the two domains may conflict. So we propose non-dominated dynamic assignment strategy, which compensates for both local decision inaccuracies and the possible conflict as a packet travels towards its destination. This way, proposed scheme can guarantee end-to-end secure and reliable requirements in a localized way. Simulation results show the correctness and effectiveness of proposed scheme.
Date of Conference: 14-16 Dec. 2009