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- Title
RiPPAS: A Ring-Based Privacy-Preserving Aggregation Scheme in Wireless Sensor Networks.
- Authors
Kejia Zhang; Qilong Han; Zhipeng Cai; Guisheng Yin
- Abstract
Recently, data privacy in wireless sensor networks (WSNs) has been paid increased attention. The characteristics of WSNs determine that users' queries are mainly aggregation queries. In this paper, the problem of processing aggregation queries in WSNs with data privacy preservation is investigated. A Ring-based Privacy-Preserving Aggregation Scheme (RiPPAS) is proposed. RiPPAS adopts ring structure to perform aggregation. It uses pseudonym mechanism for anonymous communication and uses homomorphic encryption technique to add noise to the data easily to be disclosed. RiPPAS can handle both sum() queries and min()/max() queries, while the existing privacy-preserving aggregation methods can only deal with sum() queries. For processing sum() queries, compared with the existing methods, RiPPAS has advantages in the aspects of privacy preservation and communication efficiency, which can be proved by theoretical analysis and simulation results. For processing min()/max() queries, RiPPAS provides effective privacy preservation and has low communication overhead.
- Subjects
WIRELESS sensor networks; DATA privacy; QUERY (Information retrieval system); DATA encryption; WIRELESS communications
- Publication
Sensors (14248220), 2017, Vol 17, Issue 2, p300
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s17020300