About meMy first name is Yee Wei. I received my BEng (1997) in Electrical Engineering from the University of Southampton, MEng (2002)
in Visual Technology from Nanyang Technological University, and PhD (2005) from the Faculty of Electrical Engineering, Mathematics and Computer Science, University of Twente. Now, I'm a Research Fellow at the Department of Electrical Engineering, the University of Melbourne. My area of expertise is the security of wireless sensor networks. My contact can be found on the university staff directory. 我的中文名是罗裔纬。My profile on Arnetminer. I (occasionally) maintain a blog called Classical Cryptography for Engineers. About wireless sensor network securityAdvances in hardware development have made available low cost, low power, miniature wireless sensor devices (see examples of commercial products in Figure 1) for use in wireless sensor networks (WSNs). A sensor device is none other than a board with a microcontroller, a RF transceiver and some sensors. WSNs facilitate the collection, analysis and dissemination of valuable information, gathered in a variety of environments. WSNs are increasingly being used in critical sectors of the economy: environment monitoring, healthcare, critical infrastructure and defence.
However, networks that are deployed unattended in complex and dynamic environments are vulnerable to faults, interference and malicious attacks. On February 16 of 2010, the Bipartisan Policy Center together with former top-ranking national security officials of the U.S. staged a war game, in which a large-scale denial-of-service (DoS) attack on the national grid launched by thousands of virus-infected cellphones and computers was simulated. The outcome of the war game, where 40 million people were left without power and Wall Street was forced to close for a week, was a testament to the need for effective countermeasures against large-scale cyber attacks. This urgency is more so considering the rapid expansion of the microelectronics and communications frontier. Meanwhile, more autonomous robots (see Figure 2) are being introduced into the battlefield alongside WSNs. The WSNs provide support to these mobile robots, some of which carry weapons, thus a simple security breach in the WSNs could cost lives. The introduction of these networked elements takes the stake in WSN security to a new height. Wireless sensor network (WSN) researchers are facing a scenario where most of the fundamental research has been done, but not so for security researchers. While most practical problems in the lower layers of the protocol stack have been solved, new security challenges continue to surface, and this trend will continue so long as protocols continue to be designed without any regard for security. Despite advances in identifying potential attacks against these protocols, it is foreseen that new security weaknesses will continue to be found. As the security techniques of WSNs are applied to related fields such as healthcare sensor networks, smart grid and SCADA, more challenges await solutions.
About our research at the University of Melbourne
PublicationsSee publications.Code
Computing notes
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