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Hasn't this existed for a while now? I've been trading sensitive data with a friend using kbfs for what I think has been a year now.

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Yeah it's not new. The chat feature has existed for a short while, too, which deserves more fame as being an e2e encrypted multi-device IM system that isn't tied to your phone number.

> The chat feature has existed for a short while, too, which deserves more fame as being an e2e encrypted multi-device IM system that isn't tied to your phone number.

On the other hand, it doesn't feature forward secrecy.

I still want to see something like Signal's protocol using Keybase for user identity and key management.

You can sorta kinda almost bootstrap that by putting your 'signal public key' in your keybase public folder

(by signal public key I mean that your safety number with any given person is always a concatenation of a string that identifies you and a string that identifies them and you'll find that same string across your safety numbers with all your contacts)

Ex: https://keybase.pub/michaelblume/signal.txt

Not only encrypted, but authenticated. You know who you are talking to.

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