https://github.com/chihchengliang/poseidon-tornado

https://github.com/chihchengliang/poseidon-tornado

Last synced: 2 months ago
JSON representation

• Host: GitHub
• URL: https://github.com/chihchengliang/poseidon-tornado
• Owner: ChihChengLiang
• Created: 2021-08-15T14:44:44.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2022-02-16T14:02:40.000Z (almost 3 years ago)
• Last Synced: 2024-10-23T14:03:18.819Z (3 months ago)
• Language: TypeScript
• Size: 588 KB
• Stars: 85
• Watchers: 7
• Forks: 10
• Open Issues: 5
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# Tornado Cash but with Poseidon Hash

[![Node.js CI](https://github.com/ChihChengLiang/poseidon-tornado/actions/workflows/node.js.yml/badge.svg)](https://github.com/ChihChengLiang/poseidon-tornado/actions/workflows/node.js.yml)

WARNING: This project is unaudited, please don't use in the production.

We copy and modify the [Tornado Cash](https://github.com/tornadocash/tornado-core) and implement the optimization suggestions in the a Tornado [audit report](https://tornado.cash/audits/TornadoCash_cryptographic_review_ABDK.pdf).

Specifically we

- Use Poseidon Hash for tree hashing, nullifier hashing, and commitment construction

- Use the following suggested construction to allow nullifier reuse

```

commitment = PoseidonHash(nullifier, 0)

nullifierHash = PoseidonHash(nullifier, 1, leafIndex)

```

## Build

First, you must have the Circom 2 compiler installed. See [installation

instructions](https://docs.circom.io/getting-started/installation/) for details.

The build step compiles the circuit, does untrusted setup, generates verifier contract, and compiles all the contracts. It could take a while at the setup step.

```sh

npm install

npm run build

```

```sh

npm run test

```

## Benchmark

```sh

npm run info

```