FHEVM Hardhat Template

A Hardhat-based template for developing Fully Homomorphic Encryption (FHE) enabled Solidity smart contracts using the FHEVM protocol by Zama.

Quick Start

For detailed instructions see: FHEVM Hardhat Quick Start Tutorial

Prerequisites

Node.js: Version 20 or higher
npm or yarn/pnpm: Package manager

Installation

Install dependencies
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Set up environment variables
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Compile and test
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Deploy to local network
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Deploy to Sepolia Testnet
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Test on Sepolia Testnet
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📁 Project Structure

fhevm-hardhat-template/
├── contracts/           # Smart contract source files
│   └── FHECounter.sol   # Example FHE counter contract
├── deploy/              # Deployment scripts
├── tasks/               # Hardhat custom tasks
├── test/                # Test files
├── hardhat.config.ts    # Hardhat configuration
└── package.json         # Dependencies and scripts

📜 Available Scripts

| Script | Description | | ------------------ | ------------------------ | | npm run compile | Compile all contracts | | npm run test | Run all tests | | npm run coverage | Generate coverage report | | npm run lint | Run linting checks | | npm run clean | Clean build artifacts |

📚 Documentation

📄 License

This project is licensed under the BSD-3-Clause-Clear License. See the LICENSE file for details.

🆘 Support

GitHub Issues: Report bugs or request features
Documentation: FHEVM Docs
Community: Zama Discord

Built with ❤️ by the Zama team

FHE Operations Reference