Secure and Privacy-Preserving Data Aggregation Protocols for Wireless Sensor Networks

TL;DR

This paper reviews security and privacy challenges in wireless sensor network data aggregation, analyzes existing protocols, identifies vulnerabilities, and proposes a new secure aggregation protocol to detect malicious data injections.

Contribution

It introduces a novel secure aggregation protocol that addresses vulnerabilities in existing methods and enhances detection of false data in wireless sensor networks.

Findings

Identified security vulnerabilities in CPDA protocol

Proposed a mechanism to plug the vulnerability

Demonstrated the effectiveness of the new protocol

Abstract

This chapter discusses the need of security and privacy protection mechanisms in aggregation protocols used in wireless sensor networks (WSN). It presents a comprehensive state of the art discussion on the various privacy protection mechanisms used in WSNs and particularly focuses on the CPDA protocols proposed by He et al. (INFOCOM 2007). It identifies a security vulnerability in the CPDA protocol and proposes a mechanism to plug that vulnerability. To demonstrate the need of security in aggregation process, the chapter further presents various threats in WSN aggregation mechanisms. A large number of existing protocols for secure aggregation in WSN are discussed briefly and a protocol is proposed for secure aggregation which can detect false data injected by malicious nodes in a WSN. The performance of the protocol is also presented. The chapter concludes while highlighting some future directions of research in secure data aggregation in WSNs.