Private Money

Private Money is a modernized fork of Tornado Cash allowing private money transfers on Base.

This repo contains the core contracts and circuits.

Setup

1. Install npm dependencies

yarn

2. Install circom (note: requires rust)

# refer to latest instructions at: https://docs.circom.io/getting-started/installation/

# clone repo
git clone https://github.com/iden3/circom.git

# install circom
cargo build --release
cargo install --path circom

3. Install snarkjs (note: requires node)

npm install -g snarkjs

4. Download ptau file

We use prepared .ptau files from the privacy-ethereum/perpetualpowersoftau repo.

The withdraw circuit has 27.4k constraints, so we use the ppot_0080_15.ptau which has 32.7k points and is 36mb in size.

To download the file, run:

yarn setup

5. Build circuits and contracts

yarn build

7. Run tests

yarn test