TornadoMina: Tornado Cash on Mina protocol

Concept

We implemented TornadoCash protocol on Mina protocol. TornadoCash realize the mixing of the tokens or native currency.

Why

Mina protocol strong points are below

• constant size state proof, it realize constant size client node that have same power to the fullnode
• user privacy through zero knowledge

But the Mina protocol itself is so early stage on the roadmap. So a lot of informations like MINA balance, token balance are public. Then we decided develop TornadoCash protocol on Mina in order to provide the basic user privacy.

What this PoC can do

This product offers constant MINA native currency mixing and cli based demo using local network.

Architecture

Deposit

Withdraw

Problems

Data availability

This PoC product assume that below 2 data is available and update offchain

• CommitmentHash MerkleMap
• NullifierHashesRoot MerkleMap

But the assumption is so strong known as data availability problem. Let's discuss with it.

Development

How to build

npm run build

How to run tests

npm run test
npm run testw # watch mode

How to run coverage

npm run coverage

Current Coverage

File	% Stmts	% Branch	% Funcs	% Lines
All files	100	100	100	100
TornadoMina.ts	100	100	100	100

License

Apache-2.0