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On Voting Machine Design for Verification and Testability

Speaker  Sanjit A. Seshia

Affiliation  University of California, Berkeley

Host  Sumit Gulwani

Duration  00:58:41

Date recorded  19 March 2010

I will present an approach for the design and analysis of an electronic voting machine based on a novel combination of formal verification and systematic testing by humans. The system was designed specifically to enable verification and testing. In our architecture, the voting machine is a finite-state transducer that implements the bare essentials required for an election. We formally specify how each component of the machine is intended to work and formally verify that an implementation of our design meets this specification. However, it is more challenging to verify that the composition of these components will behave as a voter would expect, because formalizing human expectations is difficult. We show how systematic testing by humans can be used to address this issue, and in particular to verify that the machine will behave correctly on Election Day. I will conclude with some observations on what we learned from this project and some thoughts on how the ideas might generalize.

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> On Voting Machine Design for Verification and Testability