Skip to content


Switch branches/tags

Name already in use

A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?

Latest commit


Git stats


Failed to load latest commit information.
Latest commit message
Commit time

Vac RFCs

This repository contains specifications for the Vac project. Vac is an R&D org creating modular p2p protocols for private, secure, and censorship-resistant communication. A detailed, albeit slightly outdated (2019), explanation of Vac and its design goals can be found here.

Vac RFCs (Request for Comments) includes specs for the Waku family of specs, but also other things such as: node discovery, data sync, recommendations around usage, spec process, interfacing with auxiliary systems such as distributed storage, payload encryption, and so on.

Vac, while having a core team of maintainers and contributors, is an open and permission-less organization.

See for an easy to browse index of all RFCs.


Please see 1/COSS for general guidelines and spec lifecycle.

Feel free to join the Vac discord. There's a channel specifically for RFC discussions.

Here's the project board used by core contributors and maintainers:

Building locally

Run git submodule update --init to install the Hugo "book" theme. Ensure you have the Hugo extended edition (, then run hugo server.

These protocols define various components of the vac stack.

Style guide

Sequence diagrams are generated using Mscgen like this: mscgen -T png -i input.msc -o output.png. Both the source and generated image should be in source control. For ease of readability, the generated image is embedded inside the main spec document.

Alternatively, mscgenjs can be used to generate sequence diagrams (mscgenjs produces better quality figures especially concerning lines' spaces and figures' margins). Once installed, the following command can be used to generate the sequence diagrams mscgenjs -T png -i input.msc -o output.png. More details on the installation and compilation are given in mscgenjs repository. You may try the online playground as well to get a sense of the output figures.

Continuous Integration

The master branch is built by our Jenkins instance and deployed to


Site layout and process inspired by