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Well, matrix can to multi-device usage great and has E2E, so I don't see why that would be a hard requirement or even any kind of requirement.
by _flux 6y ago
Well, matrix can to multi-device usage great and has E2E, so I don't see why that would be a hard requirement or even any kind of requirement.
- iforgotpassword 6y agoBecause at least according to the Threema devs, doing e2e multi device in a secure and anonymous way is not trivial.[1] Maybe matrix solved that problem, maybe they don't care... [1] https://threema.ch/en/blog/posts/md-architectural-overview-intro https://threema.ch/en/blog/posts/md-architectural-overview-i...
- _flux 6y agoI guess it depends what you need and what is "secure and anonymous". Matrix probably leaks a ton of metadata. In practice it works by each device having their own encryption key and then those devices are bound together with a cross signing key, so your peer can robustly identify all your devices at once (and the list of devices can change as long as they are bound by the cross signing key). Certainly the server is able to correlate device ids (and thus keys) and IPs. The way threema does it sounds a bit how room encryption works in Matrix amond multiple clients.