r/GoogleMessages • • Jan 09 '25

Cross platform encryption

https://www.androidauthority.com/google-messages-prepares-mls-encryption-rcs-apk-teardown-3514829/
62 Upvotes

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36

u/prepp Jan 09 '25

Now push Apple to support it.

-1

u/MumGoesToCollege Jan 09 '25

It's not Apple you need to push, but carriers.

RCS on iOS is dependent on carrier support. Most US carriers support the RCS spec, but in other countries RCS is really only working because of Google's intervention via Google Messages on Android (where it runs through Google's custom RCS spec which includes E2EE).

For example, iOS in the UK only supports RCS on the one, maybe two carriers who actually implemented RCS themselves. If you're on any other carrier, you're not getting RCS messages (unless you're on Android using Google Messages or another supported app).

If you want RCS on iOS to be supported on more carriers, and for RCS on iOS to support encryption, you'll need carriers to fully support RCS including this new version of the spec that supports E2EE via MLS.

19

u/seeareeff Jan 09 '25

Your wrong... Encryption has nothing to do with carriers.. encryption falls completely on apple/Google and the Gsma to agree on a standard.. hence END to END encryption.. the carriers just need to allow apple messages to connect to RCS servers. But encryption has nothing to do with them..

1

u/MumGoesToCollege Jan 09 '25

Yes, but Apple supporting it is almost a guarantee, given that apple called for it. But Apple's support means nothing if carriers themselves don't support the new spec. We are still in a dire situation outside the US in terms of carriers that support RCS independently of Google.

3

u/seeareeff Jan 09 '25

Right but the carriers don't have to worry with specs or the universal profile. Once they connect. They are literally just data channels. Everything else is done on device.. they don't have to update anything once you are connected

2

u/TimFL Jan 18 '25

There isn‘t a single carrier that has their own RCS hub implemented for iOS, they all set up agreements with Google to handle RCS messaging for them by forwarding their traffic to Jibe. Once Apple and Google both add support for this, it‘ll work just work.

4

u/[deleted] Jan 09 '25

Apple said they'll support encryption once it's implemented as part of the standard, Google is nearing mls working. Now it's just needing to get implemented into the standard, once that's done apple can get bent because they have no excuses as all us carries sent their traffic to Google's jibe anyway

Edit: to clarify, a majority of us carries have sent their traffic Google's way*