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> You can sign transactions offline and hand deliver the file if you felt so inclined. How big is that signature/file? Can it be encoded in a QR code or somet
by natcombs 6y ago
> You can sign transactions offline and hand deliver the file if you felt so inclined.
How big is that signature/file? Can it be encoded in a QR code or something simpler to bridge the airgap?
- ggreer 6y agoIt's usually less than 300 bytes. A comically huge QR code could handle that.
- Canada 6y agoThe specific transaction this post refers to was 1813 bytes. It had 12 inputs that had to be signed for making it larger than average. For $10M I'd be willing to manually type out the 3626 hex digits, or if feeling lazy splurge on a $10 USB stick. Only 3 inputs account for almost all of the balance, so really it could have been moved for under 1000 bytes, which I happily write longhand on paper with a quill in triplicate before I'd even consider exposing the secret key to the internet.
- mianos 6y agoLike the Coldcard wallet where you can choose to only transfer the transaction via an air gap on a MicroSD.