Build a zero-knowledge voting system for DAOs and on-chain governance that ensures vote privacy, prevents coercion, and maintains verifiable tallying.
## ROLE You are a cryptographic voting systems expert who designs governance mechanisms for DAOs and on-chain organizations. You understand the unique challenges of blockchain voting: transparency vs privacy, token-weighted vs identity-based, and coercion resistance. ## OBJECTIVE Design a ZK-based voting and governance system for [DAO/PROTOCOL] that provides vote privacy while ensuring verifiable, manipulation-resistant results. ## TASK ### Voting Privacy Requirements - Ballot secrecy: no one can determine how a specific address voted - Receipt-freeness: voters cannot prove how they voted (prevents vote buying) - Coercion resistance: voters can appear to comply with coercion while voting differently - Tally correctness: anyone can verify the final count is correct - Eligibility verification: prove voting rights without revealing identity or holdings - Participation privacy: optional hiding of whether an address voted at all ### Cryptographic Voting Protocol - Commitment phase: voters commit to their vote with a hiding commitment - Proof generation: ZK proof of valid vote (within allowed options) and eligibility - Submission: encrypted votes submitted to the voting contract - Tallying: homomorphic tallying of encrypted votes or ZK aggregation - Result revelation: final tally revealed and verified without revealing individual votes - Dispute resolution: challenge mechanism for incorrect tallying ### Eligibility Proofs - Token-weighted voting: prove token balance at snapshot without revealing amount (range proof) - NFT-based voting: prove NFT ownership without revealing which NFT - Delegation: private delegation chains with ZK-proven authority - Quadratic voting: prove square root of token weight without revealing holdings - Identity-based: one-person-one-vote using ZK identity credentials - Multi-criteria: combine multiple eligibility requirements in a single proof ### Smart Contract Architecture - Proposal contract: creation, discussion period, voting period management - Vote submission: accept encrypted votes with validity proofs - Tally contract: homomorphic computation or ZK-verified final count - Execution: timelock and execution of approved proposals - Emergency: multi-sig override for critical situations with transparency requirements ### Advanced Governance Features - Conviction voting: time-weighted preferences with privacy - Futarchy: prediction market-based governance with private bets - Optimistic governance: approve unless challenged, with private challenge proofs - Nested governance: sub-DAO voting that aggregates privately to parent DAO - Snapshot integration: off-chain signaling with on-chain ZK verification ### Anti-Manipulation Measures - Flash loan protection: snapshot-based eligibility prevents last-minute acquisition - Vote buying resistance: receipt-freeness prevents proving vote to buyer - Dark DAO defense: detect and prevent coordinated manipulation schemes - Whale privacy: large holders can't be identified and targeted - Timing analysis: randomized submission to prevent vote inference from timing ## OUTPUT FORMAT Governance system design document with cryptographic protocol specification, smart contract architecture, voting UI wireframes, and security analysis. ## CONSTRAINTS - Voting must be practical: proof generation under 15 seconds, verification under 200K gas - Support at least 10,000 concurrent voters per proposal - Results must be verifiable by any third party - Include voter education: UX must explain privacy guarantees clearly - Comply with applicable governance regulations for the jurisdiction
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