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Vol. 14-2, Special Issue, March 2012, pp.125-149

 

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A Framework for Secure Data Delivery in Wireless Sensor Networks

 

1 Leonidas PERLEPES, 1 Alexandros ZAHARIS, 1 George STAMOULIS and 2 Panagiotis KIKIRAS

1 University of Thessaly, Volos, Greece

2 AGT Germany, Darmstadt, Germany

E-mail: alzahari@inf.uth.gr, leperlep@inf.uth.gr, georges@inf.uth.gr, pkikiras@agtgermany.com

 

 

Received: 14 November 2011   /Accepted: 20 December 2011   /Published: 12 March 2012

Digital Sensors and Sensor Sysstems

 

Abstract: Typical sensor nodes are resource constrained devices containing user level applications, operating system components, and device drivers in a single address space, with no form of memory protection. A malicious user could easily capture a node and tamper the applications running on it, in order to perform different types of attacks. In this paper, we propose a 3-layer Security Framework composed by physical security schemes, cryptography of communication channels and live forensics protection techniques that allows for secure WSN deployments. Each of the abovementioned techniques maximizes the security levels leading to a tamper proof sensor node. By applying the proposed security framework, secure communication between nodes is guaranteed, identified captured nodes are silenced and their destructive effect on the rest of the network infrastructure is minimized due to the early measures applied. Our main concern is to propose a framework that balances its attributes between robustness, as long as security is concerned and cost effective implementation as far as resources (energy consumption) are concerned.

 

Keywords: Security framework, Sand-boxing, Live forensics, Cryptography, Wireless sensor networks

 

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