一个安全有效的数据聚集取回技术在无人值守的无线传感器网络中的应用
首发时间:2009-05-05
摘要:在无人值守的无线传感器网络(unattended wireless sensor networks)中,用户可以根据自己的需要来存储和取回数据。为了让数据有效的传输,数据在传输时往往会在一个汇聚点(aggregator)聚集起来,然后转发到上一层的节点。因此必须保证数据在传输过程中的保密性和完整性。基于端到端的加密(end-to-end encryption)和逐跳式的加密(hop-by-hop encryption)的方案往往不能解决问题。而直接的基于同态加密的方案对于节点被俘获的情况也无能为力。为了达到即确保保密性、完整性的同时,又要确保数据传输的有效性,我们综合运用同态秘密共享和同态加密这两种方法,提出了一种 H2S(Homomorphic encryption and homomorphic secret sharing)的方案。最后进行深入的分析来证明对这个方案的安全性和有效性。
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H2S: A Secure and Efficient Data Aggregative Retrieval Scheme in Unattended Wireless Sensor Networks
Abstract:In unattended wireless sensor networks, data are stored locally and retrieved on demand. To efficiently transmit the collector’s retrieval results, data are aggregated along being forwarded. The data confidentiality and integrity should be protected at the intermediate nodes. End-to-end encryption or hop-by-hop encryption based schemes are not efficient. Straightforward homomorphic encryption based scheme is not compromise resilient. To achieve all the desires, we propose a scheme - H2S by making use of both homomorphic secret sharing and homomorphic encryption. The security and efficiency of our scheme are justified by extensive analysis.
Keywords: wireless sensor networks data aggregation security
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No.3193946562512414****
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