Roman Semenov: Tornado Cash – Keeping Your Ethereum Transactions Private


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By default, all transactions made on Ethereum are public. Tornado Cash is a decentralized privacy preserving solution built on Ethereum which adds privacy through obfuscation. Users can place Ether and some stable coins in prescribed increments [1 Eth, 10 Eth, 100 Eth...] into the Tornado Pool. In return, they are issued a private note, with which they can withdraw funds at a later time to a different address.

We were joined by Roman Semenov, co-founder of Tornado Cash, to talk about how the protocol works, how it was set up, community governance, and where he sees Tornado Cash's position in the quickly growing privacy ecosystem on Ethereum.

Topics covered in this episode:

  • Roman's background and how he got into crypto
  • The problem Tornado Cash solves and how the protocol works
  • What tokens are supported and can you swap tokens?
  • Smart contracts and zero knowledge
  • Costs involved for deposits and withdrawls
  • Weaknesses of the protocol
  • The Compliance Tool feature
  • The regulatory threat to private coins in the future
  • Tornado Cash's roadmap and how they see themselves positioned in the wider ecosystem

Episode links:


  • Exodus: Exodus the easy-to-use crypto wallet available on all platforms and supporting over 100 different assets. -
  • ParaSwap: ParaSwap’s state-of-the-art algorithm beats the market price across all major DEXs and brings you the most optimized swaps with the best prices, and lowest slippage -
  • Solana: Solana is the high performance blockchain supporting over 50k transactions per second to power the next generation of decentralized applications. -

This episode is hosted by Friederike Ernst & Sebastien Couture. Show notes and listening options:

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