Zero-Knowledge Proof Lottery Project

This repository implements a decentralized lottery system that utilizes zero-knowledge proofs to ensure secure, private, and verifiable lottery operations. The project is divided into several components:

• circuits/: Contains Circom circuits and related scripts for generating zero-knowledge proofs.
• contracts/: Houses Solidity smart contracts for lottery logic, ticket management, and proof verification.
• frontend/ (optional): A Next.js-based decentralized application (DApp) for interacting with the smart contracts.

Repository Structure

``` . ├── circuits/ # ZK circuits, artifacts, scripts, and tests ├── contracts/ # Solidity contracts, tests, and deployment scripts ├── frontend/ # (Optional) Next.js frontend DApp using ethers.js └── README.md # This file ```

Prerequisites

• Node.js and npm/yarn.
• Foundry (for smart contract development).
• Circom and snarkjs (for zero-knowledge circuit compilation and proof generation).
• (Optional) Next.js for the frontend.

Setup

Contracts

1. Navigate to the contracts/ directory.

2. Install dependencies:

   ``` yarn install ```

3. Compile the contracts:

   ``` forge build ```

4. Run tests:

   ``` forge test --ffi ```

Circuits

1. Navigate to the circuits/ directory.

2. Install dependencies:

   ``` yarn install ```

Frontend (Optional)

1. Navigate to the frontend/ directory.

2. Install dependencies:

   ``` npm install ```

3. Start the development server:

   ``` npm run dev ```

License

This project is licensed under the MIT License.