Welcome to the licentiate defense of Shahid Raza, June 13th, 2011

13 June, 2011 - 09:15


Title: Securing Communication in IP-connected Industrial Wireless Sensor Networks 

Time: The 13th of June at 13.15Location: Lecture room Kappa, Mälardalens högskola in VästeråsReviewer: Prof. Ben Smeets, Lunds Tekniska HögskolaExaminer: Prof. Mikael Sjödin, Mälardalens högskola

Supervisors:  Mats Björkman, Thiemo Voigt, Christian Gehrmann

Abstract:With the advent of Wireless Sensor Networks (WSN) and success of wireless communication in the local and personal area networks such asWi-Fi and Bluetooth, more serious efforts to apply standard wireless communication in sensitive industrial networks were initiated. This effort resulted in the standardization of WirelessHART. Other standardization efforts include ISA 100.11a and ZigBee. Keeping in mind the nature of wireless communication and sensitivity of industrial environments, security of these network gets greater importance.In this thesis we work on security issues in industrial WSN in general and IP-connected WSN in particular. Currently WirelessHART is the only approved standard for secure wireless communication in industrial WSNs. We start our work with the analysis of security mechanisms in WirelessHART. We propose solutions for the security shortcomings in WirelessHART, and design and implement the missing security components. Particularly, we specify, design, implement, and evaluate the first open security manager for WirelessHART networks.With the standardization of IP in WSNs (6LoWPAN) and birth of Internet of Things, the need for IP communication in industrial WSN is getting importance. The recently proposed ISA 100.11a standard is IP-based since its inception. Also standardization efforts are in progress to apply IP in WirelessHART and Zigbee. Recently, WSNs and traditional IP networks are more tightly integrated using IPv6 and 6LoWPAN. We realize the importance of having an interoperable standardized secure IP communication in industrial WSNs. IP Security (IPsec) is a mandatory security solution in IPv6. We propose to use IPsec for 6LoWPAN enabled industrial WSNs. However, it is not meaningful to use IPsec in its current form in resource constrained WSNs. In addition to providing security solutions for WirelessHART, in this thesis we also specify, design, implement, and extensively evaluate lightweight IPsec that enables end-to-end secure communication between a node in a 6LoWPAN and a device in the traditional Internet. Our results show that lightweight IPsec is a sensible and practical solution for securing WSN.Welcome!