Check out our latest Frostsnap prototypes. Hardware wizardry @npub164hq...9e55 App ingenuity @Zero-Knowledge Goof Welcome to the future of #bitcoin self-custody ❄ Frostsnap is a mobile-first hardware wallet πŸ“² Begin your self-custody journey by plugging Frostsnap devices into your phone and naming them via the Frostsnap app. Choose a security threshold and begin key generation to easily set up a multisig wallet in a matter of seconds. In this demo we create a 2-of-3 multisig between the devices. A threshold of two means we need any two of the three devices to sign in order to spend funds from the wallet. β„οΈπŸ”’ Daisy-chained Frostsnap devices participate in distributed key generation, each contributing entropy to a joint secret shared across multiple devices. No single device knows the overall secret, only a fragment. You, the user, can easily verify the key was created securely βœ… After creating a new key, you can hide your Frostsnap devices in different locations or share them among people you trust. πŸ˜οΈπŸοΈπŸ‘¨β€βš–οΈ When it comes time to make a bitcoin transaction or sign a Nostr post under your Frostsnap key, you must sign on multiple devices. Frostsnap is crafting a whole new Bitcoin experience, And we're fixing the problems of self-custody today: security, accessibility, cost, and privacy. Frostsnap is making #bitcoin ownership easy, personalized, and secure. Stay Frosty ❄️

Replies (39)

During the message signing part, it looks like there is only a cancel button option on the screen. Will users be able to sign the PSBT with one device, save it, and close out the app while they travel to the location of the next signing device?
Cool. Timelock transactions is another neglected part of the market. There are other multisig wallets but this looks by far the easiest. But many folks don’t care about multisig. Better security available with time locks and nobody is working on it. Low hanging fruit. Combining multisig and time locks would be epic. Example: 3 of 3 for next 50,000 blocks, 2 of 3 after that for the next 50,000 blocks, 1 of 3 after that
If this becomes a standard where it can be used with hardware from different vendors or DIY stuff like #[4]​ that would become a game changer. No more hussle with XPUBs etc.
I can't wait for the next conference in Riga where you give me the ELI5 you promised me at the Nostr Party.
Platinum Bear's avatar
Platinum Bear 2 years ago
This is some really cool tech. However, it’s not boomer approved. Process needs to be much more streamlined. If you want mass adoption to must cater to the lowest common denominator.
Very excited for this. Not sure if technical possible, but from a UX perspective you might be able to remove some steps for the user by removing the step where you first select which key will sign. Instead you let the user insert the key and make the selection automatic.
People critiquing this device, the ux, etc. based on a 30 sec. video got me smh. It's a fucking prototype; relax and let these guys iterate before offering your bullshit opinions. Jesus.πŸ™„
Wow! Great work. It shows a completely different (and good) setup experience than normal multisig. Of course many challenges remain, like preshared nonces. I wonder if this setup could be done without a cellphone to keep everything airgapped?
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