Waku v2 companion spec for encryption

[oskarth]

Problem

Currently in Waku v1 we have basic encryption capabilities (public key crypto, symmetric keys). However, these are tightly coupled and a poor design so we are re-designing them (#145).

This means that in Waku v2 there is no end to end encryption by default. It'd be useful to have a basic form of E2EE, etc that people can use.

Acceptance criteria

Companion spec to Waku v2 that is optional and compatible with e.g. Status needs.

Details

Possible Solutions

Notes

This is part of #151

https://specs.vac.dev/specs/waku/envelope-data-format.html

[oskarth]

I think how we solve this is relevant for e.g. bridge mode #159 @kdeme

[kdeme]

Yes, but it is also blocked by this question: #181
First need to answer what we will do there. Which format to have/keep or none at all

[oskarth]

Partially addressed in #199

Future enhancements of this would be attacked separate. Making these decoupled is mostly at the implementation layer now, and per spec it can be omitted.