Receipt-free secret-ballot elections (extended abstract)
STOC '94 Proceedings of the twenty-sixth annual ACM symposium on Theory of computing
Untraceable electronic mail, return addresses, and digital pseudonyms
Communications of the ACM
A verifiable secret shuffle and its application to e-voting
CCS '01 Proceedings of the 8th ACM conference on Computer and Communications Security
Coercion-resistant electronic elections
Proceedings of the 2005 ACM workshop on Privacy in the electronic society
Scratch & vote: self-contained paper-based cryptographic voting
Proceedings of the 5th ACM workshop on Privacy in electronic society
EVT'06 Proceedings of the USENIX/Accurate Electronic Voting Technology Workshop 2006 on Electronic Voting Technology Workshop
EVT'06 Proceedings of the USENIX/Accurate Electronic Voting Technology Workshop 2006 on Electronic Voting Technology Workshop
Split-ballot voting: everlasting privacy with distributed trust
Proceedings of the 14th ACM conference on Computer and communications security
Ballot casting assurance via voter-initiated poll station auditing
EVT'07 Proceedings of the USENIX Workshop on Accurate Electronic Voting Technology
Three voting protocols: ThreeBallot, VAV, and twin
EVT'07 Proceedings of the USENIX Workshop on Accurate Electronic Voting Technology
Scantegrity: End-to-End Voter-Verifiable Optical- Scan Voting
IEEE Security and Privacy
Civitas: Toward a Secure Voting System
SP '08 Proceedings of the 2008 IEEE Symposium on Security and Privacy
Secret-Ballot Receipts: True Voter-Verifiable Elections
IEEE Security and Privacy
Helios: web-based open-audit voting
SS'08 Proceedings of the 17th conference on Security symposium
VoteBox: a tamper-evident, verifiable electronic voting system
SS'08 Proceedings of the 17th conference on Security symposium
EVT'08 Proceedings of the conference on Electronic voting technology
Bingo voting: secure and coercion-free voting using a trusted random number generator
VOTE-ID'07 Proceedings of the 1st international conference on E-voting and identity
Selections: internet voting with over-the-shoulder coercion-resistance
FC'11 Proceedings of the 15th international conference on Financial Cryptography and Data Security
Hi-index | 0.00 |
This paper considers coercion contracts in voting systems with end-to-end (E2E) verifiability. Contracts are a set of instructions that an adversary can dictate to a voter, either through duress or by offering payment, that increase the probability of a compliant voter constructing a vote for the adversary's preferred candidate. Using a representative E2E system, we place the attacks in game-theoretic terms and study the effectiveness of three proposed contracts from the literature. We offer a definition of optimality for contracts, provide an algorithm for generating optimal contracts, and show that as the number of candidates increases, the adversary's advantage through the use of contracts decreases. We also consider the use of contracts in a heterogeneous population of voters and for financially constrained adversaries.