Andre Cronje edited this page Oct 23, 2018 · 2 revisions

Introduction

What is Lachesis?

Lachesis is an open-source software component intended for developers who want to build peer-to-peer (p2p) applications, mobile or other, without having to implement their own p2p networking layer from scratch. Under the hood, it enables many computers to behave as one; a technique known as state machine replication.

Lachesis is designed to easily plug into applications written in any programming language. Developers can focus on building the application logic and simply integrate with Lachesis to handle the replication aspect. Basically, Lachesis will connect to other Lachesis nodes and guarantee that everyone processes the same commands in the same order. To do this, it uses p2p networking and a Byzantine Fault Tolerant (BFT) consensus algorithm.

.. image:: assets/lachesis_network.png :height: 453px :width: 640px :align: left

Lachesis is:

  • Asynchronous: Participants have the freedom to process commands at different times.
  • Leaderless: No participant plays a 'special' role.
  • Byzantine Fault-Tolerant: Supports one third of faulty nodes, including malicious behavior.
  • Final: Lachesis's output can be used immediately, no need for block confirmations, etc.
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