Tandem is a novel privacy-preserving method to protect private keys used in web3 applications. Private keys allow a user to authenticate itself without the need for a server. But it brings the problem of how to secure this key:

  • If a private key is lost or stolen, it cannot be easily replaced
  • Managing the private key with a server removes anonymity

The Tandem paper shows how to share the private key with a server in a way to keep anonymity. We work together with our partner Kudelski to apply the Tandem paper to the privacy-preserving Monero blockchain.

For more information, see our showcase page.

— Linus