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In 2003 we released the first public analysis of the security of a real electronic voting machine -- the Diebold AccuVote-TS touch screen voting terminals. Our research helped ignite a broad public debate about the suitability of electronic voting machines for use in real elections, and one can find discussions of our research in media outlets ranging from The New York Times to 60 Minutes. Doug Jones provides an excellent discussion of the story surrounding the Diebold machines and our analysis here.

Today we are researching methods for improving the security of electronic voting machines. The underlying assumption behind our work is that there does not exist a "perfect" solution to the electronic voting problem, particularly because of numerous mutually-conflicting constraints like cost, accessibility, usability, and security. Our research explores the trade-offs within this landscape, with the goal of providing new voting technologies that appropriately balance security with the other important constraints.

Papers

• Analysis of an Electronic Voting System [PDF]
  Tadayoshi Kohno, Adam Stubblefield, Aviel D. Rubin, and Dan S. Wallach
  IEEE Symposium on Security and Privacy, May, 2004
• Tamper-evident, History-independent, Subliminal-free Data Structures on PROM Storage -or- How to Store Ballots on a Voting Machine (Extended Abstract) [PS]
  David Molnar, Tadayoshi Kohno, Naveen Sastry, and David Wagner
  IEEE Symposium on Security and Privacy, May, 2006
• Designing Voting Machines for Verification [PDF]
  Naveen Sastry, Tadayoshi Kohno, and David Wagner
  Usenix Security, August, 2006

	Computer Science & Engineering University of Washington Box 352350 Seattle, WA  98195-2350 (206) 543-1695 voice, (206) 543-2969 FAX [comments to yoshi]