Specs

Technical deep dives into the inner workings of the Waku.

Waku Overview

Start here for a general introduction to Waku protocols. 10/WAKU2 describes Waku v2, a suite of secure peer-to-peer communication protocols with a focus on resource-restricted devices, privacy preservation and censorship resistance.

The Waku Network

Start here if you care most about the application of Waku protocols. 64/WAKU2-NETWORK describes an opinionated deployment of Waku protocols to form a coherent and shared decentralised messaging network that is open-access, useful for generalised messaging, privacy preserving, scalable and accessible even to resource-restricted devices.

Message Format

14/WAKU2-MESSAGE describes how message data is encoded for transmission over a Waku network.

Message Relay

Waku's strategy for p2p message routing is presented in 11/WAKU2-RELAY. It is an extension of the GossipSub publish/subscribe model, with a focus on privacy and security through message unlinkability to publishers or subscribers.

Spam protection

We extend the Relay protocol with spam protecting measures in 17/WAKU2-RLN-RELAY. This describes a way to achieve DoS protected message routing using Rate Limiting Nullifiers (RLN), while maintaining privacy preservation.

Content Filtering

12/WAKU2-FILTER is a protocol that allows resource-restricted nodes to receive only selected messages from a Waku network based on content filters.

Lightpush Publishing

19/WAKU2-LIGHTPUSH is a protocol that allows resource-restricted nodes to publish to a Waku network without participating in message routing.

Message Caching

13/WAKU2-STORE describes how historical messages can be cached and retrieved by nodes on a Waku network.