A place for talking about the Ethereum Virtual Machine on Farcaster.

How Login in with Farcaster works

- Farcaster relies on a root ECDSA <> FID mapping onchain; this can be stored in any Ethereum wallet

- You use the ECDSA pair to create EdDSA keypairs for each app; this FID <> EdDSA mapping also lives onchain

- Hubs natively understand this

- User is able to revoke an app's permissions w/ an onchain transaction using their root ECDSA

- the app can treat them more like an OAuth token — don't need a Bitlicense to host them on behalf of the user.

- if the user changes the FID <> ECDSA mapping (rotate keys for security reasons), app signers are preserved

No because most apps won't be Farcaster wallets and won't have access to the ECDSA key.

> User is able to revoke an app's permissions w/ an onchain transaction using their root ECDSA

Are clients expected to offer their own UI that allow users to do this? Is it easy to do this today?