Final Report on Internet Voting

final reportAfter about 18 months of work, the Internet Voting Panel I served on has released its final report on February 12 and
submitted it to the Legislative Assembly of British Columbia. The report contains the panel’s conclusions and recommendations, and summarizes the benefits and challenges of implementing Internet voting for provincial or local government elections in B.C. On October 23, 2013 the panel published a Preliminary Report for a six-week public comment period, ending on December 4, 2013.  The panel reviewed the commentary, including additional submissions from experts, academics and vendors in the Internet voting community. The report can be found on the panel’s web site.

 

San-Tsai Sun defends his Ph.D. dissertation on Web Single Sign-On Systems and graduates

San-TsaiMy Ph.D. student San-Tsai Sun has successfully defended and submitted the final version of his thesis “Towards Improving the Usability and Security of Web Single Sign-On Systems.” He’s moving back to industry, where he will be applying his expertise in web security to real-world systems. Congratulations to San-Tsai on very successful completion of the Ph.D. program, with many quality publications.

What research do I really do?

My department has made a short introductory video-clip about my research group LERSSE. For those who won’t read papers but still want to get an idea about what kind of research my graduate students do, just sit back and enjoy this 3-minute long summary.

If your bot friends are nicer and more interesting …

Credit: Palto/iStockphoto

Credit: Palto/iStockphoto

Popular press continues to discuss research of my graduate students on Social BotNets. The most recent article (by Eagle Gamma) appeared in Infoworld in early April. Unlike earlier coverage, it discusses more recent work (Design and Analysis of a Social Botnet), in which an economic analysis of Social Botnet feasability and challenges for throttling them is discussed.

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Project Presentations at Graduate Course in Security


512_miniconference

Students in my graduate course on computer security are presenting their term papers on April 10. The topics vary from evaluation of Sybil detection mechanisms to detection of DDoS attacks on grid clusters. This mini-conference is open to public.

The Impact of Password Meters on Password Selection

Password meters tell users whether their passwords are “weak” or “strong.” In this paper, we report on a laboratory experiment to examine whether these meters influenced users’ password selections when they were forced to change their real passwords, and when they were not told that their passwords were the subject of a study. We observed that the presence of meters yielded significantly stronger passwords. We then performed a followup field experiment to test a different scenario: creating a password for an unimportant account. In this scenario, we found that the meters made no observable difference: participants simply reused weak passwords that they used to protect similar low-risk accounts. We conclude that meters result in stronger passwords when users are forced to change existing passwords on “important” accounts and that individual meter design decisions likely have a marginal impact.

More details are in the paper, which will be presented at CHI ’13 held April 27-May 3.

Teaching Security and Privacy in Online Social Networks

sbn

This term, I’m teaching a graduate seminar-based course on security and privacy in online social networks. Students in the course are reading, presenting, critiquing, and discussing most significant and most recent papers from top venues on the subject. They also do a project related to security and write a term paper based on it. More information about can be found at the course web site.

Presentations of Term Projects in the Security Course

In my undergraduate course on security, we are holding a mini-conference on December 4, where each team of 3-4 students will present their term project. Project topics are diverse and practical. The mini-conference is open to public. See its schedule for location information and presentation times. The projects will be evaluated by the representatives of the high-tech industry.

Speculative authorization and its sibling ideas

SPAN architecture

Performance overhead due to the authorization delays can be reduced if the access control decisions are pre-computed beforehand and placed into the cache of the policy enforcement point (PEP). LERSSE alumni Pranab Kini has explored the design space for speculative authorizations. A journal version of his thesis has been recently published IEEE Transactions on Parallel and Distributed Systems.

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Independent Panel on Internet Voting in British Columbia

I’ve been invited to serve on the independent panel on Internet voting appointed by Elections B.C.. Other members of the panel are Keith Archer (chair), Chief electoral officer; Lee-Ann Crane, chief administrative officer for the East Kootenay Regional District; Valerie King, professor in the department of computer science at the University of Victoria; and George Morfitt, former auditor general of B.C.

Additional information is available in the corresponding press release.