Building what's next.

Our work runs from applied cryptography up through memory-safe Rust to the hardware it all runs on.

The work

Code we publish, and products we ship.

What we publish, we maintain, and our fixes go upstream. Anything you depend on is yours to read and fork.

Tools for people who want these guarantees without assembling the stack themselves.

Fields

Privacy and financial freedom rest on software, hardware and protocols that anyone is free to inspect.

Rust: We write systems in Rust, so whole classes of vulnerability are ruled out by the compiler rather than caught in review.
Bitcoin & Lightning: We work on the protocol and on the payment infrastructure above it, so that holding your own keys stays practical for ordinary people.
Embedded: Open hardware on RISC-V and FPGAs, down to designs you can read before you decide to trust them.
Cryptography: We design and review protocols on the assumption that the adversary is already inside the network.