Rudefox

The Bitcoin Self-Sovereignty Stack for All

[email protected]:~$ burrow mnemonic --interactive --dice-entropy --bits 128
Input 50 dice rolls [1-6]: 234322343242422344161254151
Input 23 more dice rolls [1-6]: 33116265515343114314456
Mnemonic Sentence: mountain tilt wing silk rude fox almost volume wine media verify card

Introducing: Rudefox ShowMyWork

Read about my new auditable seed generation process for non-technical users here.

Looking for Burrow? Read about the initial release of Burrow (or simply proceed to the Burrow Quick Start)!

*** WARNING ***

This software is in early-stage development and is not baked enough for beta-testing - let alone production use. Do not use with real funds under any circumstances.

• To-date there has been zero 3rd-party auditing on the code (I hope there will be enough interest to address this)
• For now, this software relies on a library of cryptographic functions which have been hand-rolled by the author, who has had no prior, real-world cryptography experience. I plan to make Pieter Wuille's libsecp256k1 an option.

Overview

Rudefox is a modular stack for creating Bitcoin custody solutions covering as much of the full vertical as possible, from custom full-node implementation to hardware wallet firmware. Each element of the stack is optional and seamlessly swappable with other tools in the Bitcoin ecosystem.

Much of the functionality is still missing; this project has not even reached alpha status yet. So far, the works in progress are:

Projects

• vixen - Zero-Dependency Bitcoin base-library with full BIP support

• Pair of command line tools for the creation and management of Bitcoin wallets

  • burrow - Air-gapped seed generation, address derivation and transaction signing on a single-board computer (SBC)

  • reynard - Watch-only wallet and transaction creation as complement to burrow

• labrynth - Blockchain indexer (optional backend for reynard)

• api-bitcoind - RPC client wrapper for bitcoind API (optional backend for reynard)

• api-esplora - REST client for Esplora API (optional backend for reynard)

Features

• Turn any air-gapped single-board computer into a stateless hardware wallet (DIY embedded solution on Roadmap)
• Communication via QR Code, Animated QR Code, SD Card or USB
• Full BIP-174 PSBT support
• Self-hosted bitcoind and/or esplora backend support
• Platform-independent Java with Linux/Win/MaxOS-friendly wrappers (compilation into native libs for embedded solutions on Roadmap)
• Zero-dependency Bitcoin library, 100% implemented from scratch (including all encoding/hash/ECDSA functions - see WARNING above)
• Ultra-small dependency set (burrow CLI only depends on Picocli and ZXing Core QR code library)
• Full suite of 5,000+ unit and integration tests

Design Goals

• Self-Sovereignty

• Free and Open

• Security & Privacy

• Modularity & Interoperability

  In support of the school of thought that holds that a strong custody solution mixes several stacks from different vendors, I aim to support and interact seamlessly with as much of the tools that are already out there, in terms of self-hosted Bitcoin clients, block explorers, hardware/software wallets and storage protocols.

• Noob Friendly

  Attention to user experience is a must and I will implement a layer of user tools and wizards that make configuration and setup of the solution as easy and seamless as possible.