This repository contains the specs for vac, a modular peer-to-peer messaging stack, with a focus on secure messaging. A detailed explanation of the vac and its design goals can be found here.

Status

The entire vac protocol is under active development, each specification has its own status which is reflected through the version number at the top of every document. We use semver to version these specifications.

Protocols

These protocols define various components of the vac stack.

• mvds - Data Synchronization protocol for unreliable transports.
• remote log - Remote replication of local logs.
• mvds metadata - Metadata field for MVDS messages.

Waku

Waku is a protocol that substitutes EIP-627.

• waku - ÐΞVp2p wire protocol, substituting EIP-627.
• envelope data format - waku envelope data field specification.
• history node - History node specification for archiving and delivering historical waku envelopes on demand.

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. The lifecycle of the specs follows the COSS Lifecycle

Meta

The keywords “MUST”, “MUST NOT”, “REQUIRED”, “SHALL”, “SHALL NOT”, “SHOULD”, “SHOULD NOT”, “RECOMMENDED”, “MAY”, and “OPTIONAL” in this document are to be interpreted as described in RFC 2119.

Linting

Spellcheck

To run the spellchecker locally, you must install pyspelling.

It can then be run with the following command:

pyspelling -c .pyspelling.yml

Words that should be ignored or are unrecognized must be added to the wordlist.

Markdown Verification

We use remark to verify our markdown. You can easily run this tool simply by using our npm package:

npm install
npm run lint

Textlint

We use textlint for extra markdown verification. You can easily run this tool simply by using our npm package:

npm install
npm run textlint