Title
PPM-HDA: Privacy-Preserving and Multifunctional Health Data Aggregation With Fault Tolerance.
Abstract
Wireless body area networks (WBANs), as a promising health-care system, can provide tremendous benefits for timely and continuous patient care and remote health monitoring. Owing to the restriction of communication, computation and power in WBANs, cloud-assisted WBANs, which offer more reliable, intelligent, and timely health-care services for mobile users and patients, are receiving increasing attention. However, how to aggregate the health data multifunctionally and efficiently is still an open issue to the cloud server (CS). In this paper, we propose a privacy-preserving and multifunctional health data aggregation (PPM-HDA) mechanism with fault tolerance for cloud-assisted WBANs. With PPM-HDA, the CS can compute multiple statistical functions of users’ health data in a privacy-preserving way to offer various services. In particular, we first propose a multifunctional health data additive aggregation scheme (MHDA+) to support additive aggregate functions, such as average and variance. Then, we put forward MHDA $^{\\oplus }$ as an extension of MHDA+ to support nonadditive aggregations, such as min/max, median, percentile, and histogram. The PPM-HDA can resist differential attacks, which most existing data aggregation schemes suffer from. The security analysis shows that the PPM-HDA can protect users’ privacy against many threats. Performance evaluations illustrate that the computational overhead of MHDA+ is significantly reduced with the assistance of CSs. Our MHDA $^{\\oplus }$ scheme is more efficient than previously reported min/max aggregation schemes in terms of communication overhead when the applications require large plaintext space and highly accurate data.
Year
DOI
Venue
2016
10.1109/TIFS.2015.2472369
IEEE Trans. Information Forensics and Security
Keywords
Field
DocType
Servers,Privacy,Cascading style sheets,Cryptography,Mobile communication,Additives
Overhead (computing),Differential privacy,Computer science,Cryptography,Server,Computer network,Fault tolerance,Data aggregator,Plaintext,Cloud computing
Journal
Volume
Issue
ISSN
11
9
1556-6013
Citations 
PageRank 
References 
12
0.57
21
Authors
5
Name
Order
Citations
PageRank
Song Han1120.57
zhao shuai2439.42
Qing-Hua Li3156388.15
Chun-Hua Ju4120.57
Wanlei Zhou52295189.31