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From: "Carlos E.R." <robin_listas@es.invalid>
Newsgroups: comp.mobile.android,misc.phone.mobile.iphone
Subject: Encryption comes to RCS at last on iPhones.
Date: Mon, 17 Mar 2025 19:40:26 +0100
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<https://gizmodo.com/apple-will-fully-encrypt-rcs-messages-between-androids-and-iphones-2000576303>


*Apple Will Fully Encrypt RCS Messages Between Androids and iPhones*
Texting a Green Bubble will feel as native as engaging another iPhone 
user on iMessage.

By Florence Ion   Published March 14, 2025

It’s been less than a year since iPhones were granted the ability to 
send messages to Green Bubbles unfettered, and only now is proper 
end-to-end encryption making an appearance. Better late than never. The 
GSM Association announced new specifications for RCS, requiring it to be 
end-to-end encrypted (E2EE) based on a protocol called the Messaging 
Layer Security (MLS). The organization laid out the plan in a press 
release, citing the need to provide users with “the highest level of 
privacy and security.”

The new specifications will use RCS Universal Profile 3.0, a 
cross-platform encryption protocol that will make it easier for iPhones 
and Android devices to identify each other. The profile allows for 
richer deep linking, better audio codec for voice messaging between 
parties, and ease of unsubscribing from a subscription text thread. The 
protocol will continue to support the rest of the high-resolution 
messaging capabilities introduced in the initial rollout of the RCS 
protocol, including tap-backs, read receipts, typing indicators, group 
messaging, and the ability to send photos without dialing down the quality.

On Apple’s end, the company confirmed that it would support end-to-end 
encrypted RCS messaging and extend it to iOS, iPadOS, macOS, and watchOS 
in future software updates. “End-to-end encryption is a powerful privacy 
and security technology that iMessage has supported since the beginning, 
and now we are pleased to have helped lead a cross-industry effort to 
bring end-to-end encryption to the RCS Universal Profile published by 
the GSMA,” Apple spokesperson Shane Bauer told The Verge. As for 
Google’s side of things, Android users already have E2EE between them by 
default for RCS texts.


(... continues on the link)


What the article does not clarify is whether Android will also implement 
this (Google uses its own encryption method), and so what will happen to 
cross platform messages.


-- 
Cheers, Carlos.