What if my device with passkey gets destroyed what is the recovery method without a seed phrase?
Just built Passkey39: a library that generates the same crypto private key every time you use your Face ID or Touch ID. No more seed phrases to lose, your biometric authentication becomes your deterministic wallet key through WebAuthn magic.
What do you think? I'm curious if it's a good or bad idea 🤔
👉 https://github.com/dolu89/passkey39
🎯 Live demo: https://passkey39.dolu.dev
(Not published to npm until it's safe to use)
Discussion
You should use a cloud-synced passkey provider. I know Apple and Google provide native cloud backup for passkeys, so you can use the same passkeys between your iPhone and Mac, for example.
But I'd prefer a strong password manager with passkey support, because Apple's passkeys won't work on your Windows/Linux computer...
Well, maybe it works by scanning the QR Code showed on desktop with your iPhone. Not sure about that 😅