Secure Data Aggregation with Fully Homomorphic Encryption in Large-Scale Wireless Sensor Networks

Sensors

Xing Li²  Dexin Chen¹  Chunyan Li²  Liangmin Wang² 

[1] College of Computer Science, Sichuan University, Chengdu 610065, China; E-Mail:;School of Computer Science and Communication Engineering, Jiangsu University, Zhenjiang 212013, China; E-Mails:

关键词: wireless sensor networks;    data aggregation;    fully homomorphic encryption;    data integrity;    message authentication code;   

DOI  :  10.3390/s150715952

来源: mdpi

【 摘 要 】

With the rapid development of wireless communication technology, sensor technology, information acquisition and processing technology, sensor networks will finally have a deep influence on all aspects of people’s lives. The battery resources of sensor nodes should be managed efficiently in order to prolong network lifetime in large-scale wireless sensor networks (LWSNs). Data aggregation represents an important method to remove redundancy as well as unnecessary data transmission and hence cut down the energy used in communication. As sensor nodes are deployed in hostile environments, the security of the sensitive information such as confidentiality and integrity should be considered. This paper proposes Fully homomorphic Encryption based Secure data Aggregation (FESA) in LWSNs which can protect end-to-end data confidentiality and support arbitrary aggregation operations over encrypted data. In addition, by utilizing message authentication codes (MACs), this scheme can also verify data integrity during data aggregation and forwarding processes so that false data can be detected as early as possible. Although the FHE increase the computation overhead due to its large public key size, simulation results show that it is implementable in LWSNs and performs well. Compared with other protocols, the transmitted data and network overhead are reduced in our scheme.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.