Fossify
Replies: 8 comments 67 replies
-
Beta Was this translation helpful? Give feedback.
-
|
Maybe the code in https://android.googlesource.com/platform/packages/services/Telephony/+/refs/heads/main/testapps/TestRcsApp/ can be observed |
Beta Was this translation helpful? Give feedback.
-
|
I saw that too, may be worth looking into as there are no open-source players in the RCS game, and when RCS becomes more popular, people will have no choice but to use Google Messages. One caveat is the internet permission. |
Beta Was this translation helpful? Give feedback.
-
|
Oh man, I would support the heck out of this! A legitimate FOSS RCS client is literally #1 on my wish list, especially considering that even Apple is adopting it later this year. I would gladly grant internet permission to Fossify if it could make it happen. To be fair, I know "support" from a non-programmer is mostly cheap talk. But I could build code, test code, donate an old phone, donate money... anything to help make it happen! |
Beta Was this translation helpful? Give feedback.
-
|
Also this was mentioned in SMT https://github.com/android-rcs/rcsjta. Did somebody try it? |
Beta Was this translation helpful? Give feedback.
-
|
^That's a very stale repository - I imagine it wouldn't still be useful. https://github.com/Hirohumi/rust-rcs-client seems to be a bit more current, but I couldn't tell you the first thing about how complete (or useful) it is. |
Beta Was this translation helpful? Give feedback.
-
Beta Was this translation helpful? Give feedback.
-
|
Here's all the documentation from GSMA from 28 February 2025 for RCS Universal Profile 3.0 with MLS E2EE (latest): If you're looking for the MLS document specifically, it's RCC.16. Available open source implementations of MLS: |
Beta Was this translation helpful? Give feedback.
-
|
Here's all the documentation from GSMA from 18 July 2025 for RCS Universal Profile 3.1 with MLS E2EE (latest): |
Beta Was this translation helpful? Give feedback.
-
|
This client claims to support RCS: https://github.com/vidit135g/Replify-Messenger |
Beta Was this translation helpful? Give feedback.
-
@Shad0wL3g3nd, is standard RCS encryption really E2E? That might be vendor-specific. 1 Footnotes |
Beta Was this translation helpful? Give feedback.
-
|
Google implies there is E2EE as they reference iPhones NOT having it, therefore RCS does support it. |
Beta Was this translation helpful? Give feedback.
-
|
https://en.wikipedia.org/wiki/Rich_Communication_Services#Encryption_support |
Beta Was this translation helpful? Give feedback.
-
|
Okay, if you expand it, it says: "Google Messages offers end-to-end encryption for your RCS messages with other Google Messages users. The GSM Association (GSMA) sets Mobile and RCS standards and we are currently working to define security standards cross platform." So it at least offers E2EE between Android Devices using Google Messages. The source may be using old code that doesn't support it either way. |
Beta Was this translation helpful? Give feedback.
-
Thanks, @naveensingh. It appears that it was previously vendor-specific, but is now standard: 1
Footnotes |
Beta Was this translation helpful? Give feedback.
-
|
A maintained RCS compatible messenger would be killer, I'd donate for that. |
Beta Was this translation helpful? Give feedback.
-
|
Honestly, set up a gofundme or something. |
Beta Was this translation helpful? Give feedback.
-
|
Could Google's RBM(RCS Business Messages) be messed with a little to support this? It looks fairly similar, just more of an automotive version of such, so it could be reverse engineered possibly to work? Honestly, take this with a grain of salt.
|
Beta Was this translation helpful? Give feedback.
-
|
@KitCatLove Bro Really Said "Dump The Theory, Take The Implementation." ☠️ Jokes Apart, This Is Great, Only If There Is No Vendor Lock-in, And E2EE Is Maintainable As Well. Also, They Seem To Abandon This Code For Some Reason. Check Out Readme From It's Main Branch. |
Beta Was this translation helpful? Give feedback.
-
Good point, but it would at least get base encryption. Even if it's out dated |
Beta Was this translation helpful? Give feedback.
-
|
Guys, it's just the AOSP messaging app. There's no encryption there. |
Beta Was this translation helpful? Give feedback.
-
|
@naveensingh, |
Beta Was this translation helpful? Give feedback.
-
|
Oh, you meant literally |
Beta Was this translation helpful? Give feedback.
-
|
So if I have understood everything here correctly, is RCS support not yet being implemented or what is the status? |
Beta Was this translation helpful? Give feedback.
-
No. I don't recall seeing it to be honest? |
Beta Was this translation helpful? Give feedback.
-
@webdingspowah, I tried to, but it was incomprehensible to a layman like myself. If you look at my past comments here, I explicitly asked the thread's participants whether your documentation explained the E2EE specification, but was informed by someone that it didn't anymore due to its age. I don't consider myself to be an authority on the matter, so I believed them. Thank you for the new documentation. |
Beta Was this translation helpful? Give feedback.
-
|
Well, good luck. Because whoever is brave enough to take on this monumental task is going to need it. The new document for the E2EE specification alone is another 90 pages of information that will need to be read and implemented, on top of all the other documentation that outlines the specification. Not even Google and Apple have this completed yet. At the time of writing this message, nobody in the world is on RCS version 3.0. At the moment, Apple is on version 2.4, and Google is on 2.6 with partial support for 2.7. Which means Google is two and a half years behind, and Apple is nearly six years behind. |
Beta Was this translation helpful? Give feedback.
-
I do remember it looking back; sorry... |
Beta Was this translation helpful? Give feedback.
-
|
FYI apparently it might be integrated into /e/ at some point: octoshrimpy/quik#124 (comment) |
Beta Was this translation helpful? Give feedback.
-
|
I'm new to Fossify and would love to use it as my primary app, but without the ability to react to texts, it is lacking. |
Beta Was this translation helpful? Give feedback.
-
|
I'm right there with you, but let's not make it sounds like Naveen is slacking off. Currently, there is no usable RCS client for Android other than Google Messages - it is not technically feasible for any FOSS client to implement at this point. |
Beta Was this translation helpful? Give feedback.
-
|
I think Samsung's messaging app has RCS compatability as well. |
Beta Was this translation helpful? Give feedback.
-
|
@KitCatLove,
|
Beta Was this translation helpful? Give feedback.
-
|
This will be an interesting thread to follow. RCS as part of microG? Yes, please! EDIT: I misread the request. The bounty is for microG to allow Google Messages to use RCS, not for a broad-based implementation of RCS within microG that other apps could connect to. |
Beta Was this translation helpful? Give feedback.
-
|
Given the direction Google is taking android, they will block any attempt at implementing RCS outside google messages. Sideloading will be thing of the past soon too. It was fun while it lasted. |
Beta Was this translation helpful? Give feedback.
-
Hey, at least they were considerate enough to allow ADB installs. |
Beta Was this translation helpful? Give feedback.
-
For now at least, but not for long I suppose |
Beta Was this translation helpful? Give feedback.
Uh oh!
There was an error while loading. Please reload this page.
-
Is RCS possible?
Beta Was this translation helpful? Give feedback.
All reactions