Journal on Communications ›› 2012, Vol. 33 ›› Issue (12): 58-68.doi: 10.3969/j.issn.1000-436x.2012.12.008

• Papers • Previous Articles     Next Articles

Efficient conditional aggregation of encrypted data in tiered sensor networks

Rui LI,Ya-ping LIN,Jin-guo LI   

  1. College of Information Science and Engineering,Hunan University,Changsha 410082,China
  • Online:2012-12-25 Published:2017-07-15
  • Supported by:
    The Natural Science Foundation of Hunan Provience;Hunan Provincial Scienc &Technology Plan Project;The National Natural Sciece Foundation of China;Young Teachers Growth Plans of Hunan University

Abstract:

A privacy preserving conditional aggregation protocol was proposed that enabled storage nodes to aggregate the data items satisfied sink issued queries correctly while prevented them from revealing both sensor collected data and Sink issued queries.To protect privacy for sensor col data and sink issued queries,an encoding method based on prefix membership verification and bloom filters was proposed to encode both sensor collected data and sink issued queries,which allowed storage nodes process queries correctly without knowing their actually value.Homomorphism encryption method was adopted to encrypt sensor collected data,which enabled storage nodes to process aggregation on encrypted data items.To reduce corresponding energy consumption between sensors and storage nodes,a code table method was proposed to represent and transmit data items.Analysis and experime validate the efficacy and efficiency of the proposed protocol.

Key words: two-tiered sensor networks, secure range queries, encrypted data aggregation, conditional aggregation, code tables

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