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Apple will soon support encrypted RCS messaging with Android users

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Re: Apple will soon support encrypted RCS messaging with Android users

#41
post #26

Earlier quoted context omitted.

Is there anything that shows "no one was allowed to use it" or was it that it wasn't an accepted standard?

Look at Google’s documentation: they explicitly state that only their Messages app is allowed to talk to their key exchange server. The entire marketing campaign they ran about RCS was predicated on nobody reading their docs or noticing all of the Android developers begging for permission to use RCS for years. https://www.gstatic.com/messages/papers/messages_e2ee.pdf > E2EE is implemented in the Messages client, so b…

https://news.ycombinator.com/item?id=43368471

Re: Apple will soon support encrypted RCS messaging with Android users

#42
post #23

Earlier quoted context omitted.

Never. It is just a fancy MMS in new disguise. Carriers / patent holders will hold to it forever while praising it as the new best thing.

You can get access to send MMS though. RCS there is no one selling access yet, especially for person to person.

It seems people are, but not anyone with a big name: https://jibe.google.com/partners/messaging-partners/ I'm guessing it's provisioned this way. https://developers.google.com/business-communications/rcs-bu...

EDIT: https://github.com/android-rcs/rcsjta

Re: Apple will soon support encrypted RCS messaging with Android users

#43
post #5

So essentially, it's not really an Apple thing, it's more that the universal RCS profile just didn't have encryption, and Google RCS was a non-standard extension that nobody else was allowed to use. The real news is the update to GSMA RCS, because without that, none of this matters. What I'm missing in the article is who's going to own the keys and why this is probably going to default to the telcos as if it's MMS. A…

The encryption is based on MLS: https://www.rfc-editor.org/rfc/rfc9420.html I don't think Google wanted to gatekeep their E2EE implementation. They have some generic documentation about how it works: https://www.gstatic.com/messages/papers/messages_e2ee.pdf The thing about RCS is that no messengers seem to care at all about implementing RCS themselves. Part of that is probably because depending on the carrier, RCS ma…

> who they'd happily supply with details to get rid of the green bubble problem

I would be surprised if this eliminates green bubbles. iMessage supports many features unavailable over RCS on Android devices. These would still be disabled and Apple needs a way to indicate a degraded feature set to iMessage users.

Re: Apple will soon support encrypted RCS messaging with Android users

#44

Earlier quoted context omitted.

The encryption is based on MLS: https://www.rfc-editor.org/rfc/rfc9420.html I don't think Google wanted to gatekeep their E2EE implementation. They have some generic documentation about how it works: https://www.gstatic.com/messages/papers/messages_e2ee.pdf The thing about RCS is that no messengers seem to care at all about implementing RCS themselves. Part of that is probably because depending on the carrier, RCS ma…

> who they'd happily supply with details to get rid of the green bubble problem I would be surprised if this eliminates green bubbles. iMessage supports many features unavailable over RCS on Android devices. These would still be disabled and Apple needs a way to indicate a degraded feature set to iMessage users.

Yep. They’re never going away.

Blue = iMessage Green = Other

It doesn’t matter if both support 100% identical feature sets, it’s gonna stay like that.

Re: Apple will soon support encrypted RCS messaging with Android users

#45
post #5

So essentially, it's not really an Apple thing, it's more that the universal RCS profile just didn't have encryption, and Google RCS was a non-standard extension that nobody else was allowed to use. The real news is the update to GSMA RCS, because without that, none of this matters. What I'm missing in the article is who's going to own the keys and why this is probably going to default to the telcos as if it's MMS. A…

Is there anything that shows "no one was allowed to use it" or was it that it wasn't an accepted standard?

It was just released in the last day or two. There had been drafts I think but now it’s real.

So someone asked Apple and they said “sure we’ll support that”.

I think the big news is that RCS can now be encrypted without relying on Google, but that’s not what gets you headlines.

Re: Apple will soon support encrypted RCS messaging with Android users

#46
post #14

Still waiting for Google Fi to turn RCS on for iOS users :(

“Why won’t Apple interoperable with RCS? (Clutches pearls)”

Well well look who is slow to role something out now /s

Of course it’s stupid RCS involves on carriers upgrading, but what do you expect with a carrier standards?

Re: Apple will soon support encrypted RCS messaging with Android users

#47

Unfortunately, RCS on Android requires google apps, so this isn't really a solution to anyone who doesn't want to be tracked by Google everywhere they go. I'm still a little confused as to what problem RCS is supposed to solve. It is just as centralized as any other chat app, and is a bit more invasive (often requiring device attestation). Is it really worth all this hassle just to not have to install, let's say, Sig…

Defaults matter. While I've gotten some of my friends and family members to install and use Signal, I still have more chats via SMS/MMS (and more recently RCS, since Apple finally started supporting it) than I do on all other messaging apps combined.

Re: Apple will soon support encrypted RCS messaging with Android users

#48

Still waiting on a non-Google implementation of this so-called standard.

I think Google‘s was something different. This is an actual standard that Apple is committing to implement. I was under the impression Google’s encryption was just their own layer thing they added on top it was not actually standardized.

When people asked last year about why Apple wasn’t implementing encrypted RCS I think they even said that they wanted to wait for a standard.

Re: Apple will soon support encrypted RCS messaging with Android users

#49

Unfortunately, RCS on Android requires google apps, so this isn't really a solution to anyone who doesn't want to be tracked by Google everywhere they go. I'm still a little confused as to what problem RCS is supposed to solve. It is just as centralized as any other chat app, and is a bit more invasive (often requiring device attestation). Is it really worth all this hassle just to not have to install, let's say, Sig…

this is so true for networks that don't implement RCS servers, not even Android - iOS interop present!

one thing i would like to see happen is deprecating SMS message with Labels rather than numbers, phishing has got far far too common in my jurisdiction RCS + some sort of DNS validation like atproto of sender would go a long long way

Re: Apple will soon support encrypted RCS messaging with Android users

#50
post #39

This is a risky clause: > R5-32-5 An RCS client having E2EE enabled shall implement techniques to detect suspicious messages or conversations.

Sounds like the standard wants phone RCS apps to do CSAM scanning as well as general analysis to see if the encrypted messages are about criminal activity. Not great.
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