## 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](../coprocessor/).

_See full details in the [Key concepts](https://docs.zama.ai/fhevm/smart-contract/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](https://docs.zama.ai/fhevm/getting-started/overview-1/hardhat).

run

```
npm install
```

To run forge tests:

```
npm run forge:soldeer
npm run test:forge
```

## Resources

- [Documentation](https://docs.zama.ai/fhevm/)
- [Contract examples](./examples/)

## Support

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