Hurricane DarkNet 🌀

View Demo: demo

Experiment with the live deployment at hurricane.lol and supports both Goerli and Ethereum Mainnet.

Hurricane is a zero-knowledge-based (zkSNARK-based) darknet for on-chain assets. The protocol allows for depositing and withdrawing of assets, as well as making hidden in-network transfers that hide the sender, receiver, and asset ‼️

⚠️ Our contracts and circuits have not been formally audited and provided on an as-is basis. The frontend also does not yet fully protect users from accidentally losing their keys. Please be careful if using Hurricane on real assets of value.

Made at 🏠 Hacklodge 2022 by Walden Yan, Allison Qi, and Brandon Wang.

Cryptography

Deposits and withdrawals are implemented similarly to Tornado cash using zero-knowledge merkle membership proofs and nullifers. Vitalik wrote a blog detailing this protocol. To extend the implementation to non-fungible assets, we added in symmetric key encryption of the asset (token address and ID) and mixed this into the zkSNARK construction in a way that is safe from rainbow attacks.

Our zk circuits can be found in zk/circuits/*.circom

Out smart contracts can be found under zk/contracts

Setup

Setup instructions exist within their individual directories.