Scantegrity is a family of security enhancements for optical scan voting systems, providing such systems with end-to-end (E2E) verifiability of election results. Each version of the system uses privacy-preserving confirmation codes to allow a voter to prove to themselves that their ballot is included unmodified in the final tally. As the system relies on cryptographic techniques, the ability to validate an election outcome is both software-independent as well as independent of faults in the physical chain-of-custody of the paper ballots. The system was developed by a team of researchers including cryptographers David Chaum and Ron Rivest.
Research Papers
CDL members that have worked on this project include Alan T. Sherman, Richard T. Carback III, Russell A. Fink, and John Conway.
This description is a reorganization of the information presented on the Scantegrity website.