# A2L

**Repository Path**: JaylonGu/A2L

## Basic Information

- **Project Name**: A2L
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2024-04-19
- **Last Updated**: 2024-04-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

#  Anonymous Atomic Locks (A2L)

A2L [1] is a cryptographic construction for building secure, privacy-preserving, interoperable, and fungibility-preserving payment channel hub (PCH). A2L builds on a novel cryptographic primitive that realizes a three-party protocol for conditional transactions, where the intermediary (tumbler) pays the receiver only if the latter solves a cryptographic challenge with the help of the sender. This repository includes implementation of A2L with instantiations based on Schnorr and ECDSA signatures.

## Dependencies

* [CMake](https://cmake.org/download/) >= 3.23.0
* [ZeroMQ](https://github.com/zeromq/libzmq)
* [GMP](https://gmplib.org/) >= 6.2.1
* [RELIC](https://github.com/relic-toolkit/relic) (configured and built with `-DARITH=gmp`)
* [PARI/GP](https://pari.math.u-bordeaux.fr/) >= 2.13.4

## Warning

This code has **not** received sufficient peer review by other qualified cryptographers to be considered in any way, shape, or form, safe. It was developed for experimentation purposes.

**USE AT YOUR OWN RISK**

## References

[1] Erkan Tairi, Pedro-Moreno Sanchez, and Matteo Maffei, "[A2L: Anonymous Atomic Locks for Scalability and Interoperability in Payment Channel Hubs](https://eprint.iacr.org/2019/589)".