Krux is an open-source DIY hardware signer for Bitcoin that can sign for multisignature and single-key wallets. It is a low-cost airgapped device built from off-the-shelf parts that communicates with wallet software via QR codes and wipes its memory after every session.
WARNING: This is currently beta-quality software and has not yet been audited by a third party. Use at your own risk!
Instructions for building and running Krux can now be found on our GitHub Pages site:
https://jreesun.github.io/krux/
- https://github.com/SeedSigner/seedsigner for Raspberry Pi (Zero)
- https://github.com/diybitcoinhardware/f469-disco for the F469-Discovery board
Issues and pull requests welcome! Let's make this as good as it can be.
If you would like to support the project, BTC is kindly accepted!
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