Does anyone know of any #FreeSoftware implementations of the #RCS encrypted messaging protocol? There is the nine year old
https://github.com/android-rcs/rcsjta I wonder if that is usable?
🍵 
Sorry for #NecroReplying,
As far as I can tell, RCS is utterly and completely dead on arrival as far as any FOSS implementation is concerned.
Even if somebody had the stones to sit down and write in implementation, it probably wouldn't be trusted or allowed in the network with all of the jerky carriers and Google and Samsung and all those horrible people. I don't know. 😅
@rl_dane thank you for #NecroReplying, this is still worth discussing! Is there some mechanism with #RCS that enforces which implementations are allowed to interoperate? If it is a standard protocol, it seems that #AdversarialInteroperability should work just fine. Google's implementation is just an app, isn't it?
@eighthave
Yeah, this is where my understanding of the protocol is really thin Swiss cheese. XD
From skimming various argumentative and contradictory forums (🤣), I've come away with the impression that a FOSS implementation of RCS wouldn't be trusted by the stakeholders, namely Google, Samsung, Apple, and the carriers.
There isn't even an independent proprietary implementation of RCS on the entire Play store. There are several that mention RCS somewhere in the metadata, but there's no claim of RCS interoperability in the description. There's also one that does claim to have RCS, but it only works with other users of the exact same app, which tells me that they're just doing their own rich messaging implementation and calling it #RCS. :P