Any tool that calls itself “open source” and uses proprietary encryption that they refuse to let any neutral third party review, should absolutely not be trusted.
Wonder if maybe there could be some organization that could fill that need. Independent, or a collection of industry vets, who look through the code and say if it’s safe or not. With the assumption details won’t be leaked or something to protect anything actually proprietary?
There's a few clients for Signal, nobody is preventing developers from creating apps; there's Molly, gurk-rs, Axolotl, Flare, signal-cli, Pidgin (with the Signal plugin.
The problem is 3rd party clients don't implement all features because it takes a lot of work and they're created/developed by volunteers - just take a look at Matrix and how many clients support all features or even just group end-to-end encryption (E2EE). Last I checked many third party Matrix clients didn't support encrypted group messages, primarily just Element, the reference client built by the matrix developers. So you have the same problem on Signal that you have on Matrix.
Rcs isn't a open source but an open standard. Two very different things.
Open standard: anyone can use the standard but could be proprietary/closed source
Open source: anyone can edit/review the code and forket it if they want to.
The issue with RCS currently is that Google won't release the API for it on android and only allows Samsung to use it for their app. Another part is that their encryption is based on signal and released a white paper about it.
Now it's understandable why people would distrust Google. But apple is currently trying to add e2ee to the open standard (google also tried in the past but failed).
XMPP is better despite it's flaws privacy-wise, since so much data gets "hogged back" to matrix.org (tbf it's a similar case with lemmy.world but Lemmy at least didn't receive funding from a company most likely linked to Mosad). Also has more lightweight servers in general.
what data gets hogged back? most stuff can be turned off and are features that would be missing anyway from xmpp, like identity servers or integrations server. also you can selfhost your identity server and add integrations manually
Did people call RCS open source? I'm not a huge follower of the standard, but I don't think I ever heard that said. In fact, I've heard people complain about not just the proprietary encryption but lack of E2E and carrier/Google control.
Its only advantages are that it is better than SMS and supported by the carriers, Google and Apple sometime this year.
It's a shitty standard but given how shitty SMS is, I'm willing to hold my nose and jump in.
yes sorry when i called it “open source” that was an overstatement that others have since corrected
“open standard” is correct—nevertheless doesn’t excuse google’s deceptive marketing to force this as industry standard instead of investing in something actually open source and aproprietary