# Overview
### Motivation
Tornado was [banned](https://twitter.com/TornadoCash/status/1557048526986780677), and transfers between accounts become traceable. BUT **Privacy Protection** is an inherent feature of the blockchain.
Face the regulators, we yield?
[RiemannCash](https://riemann.cash) focuses on private transaction, with divisible deposits, lower fees and faster withdrawals, which is based on [zero-knowledge proof](https://en.wikipedia.org/wiki/Zero-knowledge_proof), [incremental merkle tree](https://github.com/privacy-scaling-explorations/zk-kit/tree/main/packages/incremental-merkle-tree.sol) and [poseidon algorithm](https://www.poseidon-hash.info).
Using [RiemannCash](https://riemann.cash) ensures full privacy. When tokens are deposited to Riemann, withdrawn from Riemann, user Txs are fully encapsulated. All Txs generate zero-knowledge proofs, and withdrawals are initiated by relayers acting as third parties. No one knows the transfer records between your addresses except yourself.
### Features
* **Divisible deposits**. A deposit can be split into multiple deposits.
* **Lower fees**.
* **Faster withdrawals**. You can withdraw your fund immediately without a long background process once deposit.
### Flows
#### Key Generate Flow
