libbolt

A pure-Rust library implementation of BOLT: Blind Off-chain Lightweight Transactions.

BOLT is a system for conducting privacy-preserving off-chain payments between pairs of individual parties. BOLT is designed to provide a Layer 2 payment protocol for privacy-preserving cryptocurrencies such as Zcash, by allowing individuals to establish and use payment channels for instantaneous payments that do not require an on-chain transaction.

WARNING

The libbolt library is a proof of concept implementation that relies on experimental libraries and dependencies at the moment. It is not suitable for production software yet.

Dependencies

• secp256k1
• libsodium
• bn
• bulletproofs

Installation

Please ensure you have installed the libsodium library for your platform. See install instructions here.

To compile the library, run make

Tests

To run libbolt tests, run cargo test or make test

Benchmarks

To run libbolt benchmarks, run cargo bench or make bench

Usage

To use the libbolt library, add the libbolt crate to your dependency file in Cargo.toml as follows:

[dependencies]
libbolt = "0.1.0"

Then add an extern declaration at the root of your crate as follows:

extern crate libbolt;

API

The libbolt library provides APIs for three types of privacy-preserving payment channels:

• unidirectional payment channels (work in progress)
• bidirectional payment channels (done)
• third-party payments (done)

TODO

Documentation

Build the api documentation by simply running make doc. Documentation will be generated in your local target/doc directory.

For the libbolt design documentation, see the docs/bolt_design.pdf.

Contributions

To contribute code improvements, please checkout the repository as follows:

git clone https://github.com/yeletech/libbolt.git

License

Licensed under MIT (LICENSE-MIT or http://opensource.org/licenses/MIT)