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2025-08-14 18:16:13 GMT

Tim Bouma on Nostr: Pretty sure I now can build a totally secure authentication system (xAL3+) using a 30 ...

Pretty sure I now can build a totally secure authentication system (xAL3+) using a 30 cent NFC card, a borrowed android phone, and a lousy internet connection.

#nostr #safebox
Very cool.

Successful first phase of integration of selfie-recognition into #nostr #safebox.

The routine crunches your face down to a deterministic 32 byte digest which can be transformed into a nsec/npub corresponding to your face. The goal is to use this as a second factor, or for use cases where a doctor might need to verify you in real time before sending you sensitive records. Lots of possibilities.

Thanks to for the awesome repo which I hacked into my app.