Seed XOR presentation

This presentation was built using reveal.js.

You can see a live version of this presentation here: https://www.dipunmistry.co.uk/seedxor/

Watch the presentation here: https://youtu.be/w9N14UuUtzU

Other Resources

Worksheet

• Dice XOR worksheet (24 words)
• Dice XOR worksheet (12 words)
• Background
• Instructions

A python script that can help with the last word:

• short version
• commented version

Hardware and Software wallets that provide features that make Seed XOR easier:

The main benefits of using a hardware or software wallet to manage the seed XOR work for you are:

• saving time.
• accurate handling of the "last word" problem.

However, keep in mind that with convenience, you rely on these manufacturers to be honest, and on the devices you obtain to be uncompromised.

• ColdCard https://seedxor.com/
  • Allows splitting and combining on device.
  • [WIP] Allows keeping one part on an SD Card to be combined when signing Coldcard/firmware#94
• SeedSigner [WIP] SeedSigner/seedsigner#43

If you know of other software/hardware that provides Seed XOR features, feel free to create an issue or pull request.