My research interests are in security with a primary focus on verifiable electronic voting. I am particularly interested in the implementation of secure systems that take theory and put it into practice. My research in verifiable electronic voting has contributed to the development of an end-to-end verifiable election system. The design, development, testing and integration of that system constituted a two and a half year project, for which I was the technical lead. It culminated in the deployment of the system in the 2014 State Election in the State of Victoria, Australia. The entire system is open source and available from: https://bitbucket.org/tvsproject with further details available about it from http://www.suvote.com.
My PhD was in digital watermarking, in particular the watermarking of text document in a manner that was robust to printing and scanning. I developed a watermarking technique that would allow the authentication of documents after being printed out and than scanned back in. I maintain an interest in this area as well.