README

Introduction

FHEVM Solidity is a Solidity library that allows developers to write confidential smart contracts with the standard Solidity development workflow.

Main features

The FHEVM Solidity library offers the following core features:

• Encrypted types: Use encrypted integers like euint8, euint16, ..., euint256 directly in Solidity contracts.
• Encrypted operations: Perform operations on encrypted data using FHE-compatible functions like add, sub, eq, lt, ternary, etc.
• Access control: Restrict which accounts can decrypt or update values with programmable access logic.
• Symbolic execution: All encrypted operations are executed symbolically on the chain, with actual computation performed off-chain by the coprocessor.

See full details in the Key concepts section of the documentation.

Get started

To start writing confidential smart contracts using FHEVM Solidity, follow the Hardhat setup guide here: Getting Started with Hardhat.

run

npm install

To run forge tests:

npm run forge:soldeer
npm run test:forge

Resources

• Documentation
• Contract examples

Support

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