Google Messages app is preparing end-to-end encryption for RCS chat

Google Messages
(Image credit: Google)
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Code spotted in an upcoming version of the Google Messages app suggests that end-to-end encryption is in the pipeline for RCS messaging – the SMS upgrade that Google has pushed out in the US, the UK and various other countries.

An unreleased build of Messages was obtained by APKMirror (opens in new tab), and as 9to5Google (opens in new tab) reports, the app mentions end-to-end encryption as an option for RCS. The key security upgrade would put it on a par with the likes of iMessage and WhatsApp.

If we've completely lost you already, RCS (Rich Communication Services) offers a few benefits over SMS: better quality photos and videos, read receipts, and several other tweaks you would expect in a modern chatting app on your phone.

RCS is a little bit different from a chatting app like Facebook Messenger or Telegram though – it works on a more fundamental level, so the technology can be built into different apps. At the moment, Google is its biggest fan, which is why it's been integrated into Google Messages on Android.

Pick your chat app

While RCS in Google Messages is definitely an upgrade on SMS, the current lack of end-to-end encryption is one reason why you might not use it as your preferred messaging platform of choice.

End-to-end encryption means messages are completely scrambled for everyone except the contacts in the conversation. The contents of your conversations are hidden from app developers, phone makers, law enforcement, and so on.

The code fragments that have been spotted suggest Google is now working to add end-to-end encryption for sending messages, sharing a location and so on. On a weak internet connection, SMS and MMS could still be used as a fallback. At the moment though it's not clear how long these features might take to reach users.

XDA Developers (opens in new tab) also found mentions of RCS integration with Google Fi, and future improvements to the way that Google Messages is backed up in the cloud. As soon as any of these features become official, we'll let you know.

David Nield
Freelance Contributor

Dave is a freelance tech journalist who has been writing about gadgets, apps and the web for more than two decades. Based out of Stockport, England, on TechRadar you'll find him covering news, features and reviews, particularly for phones, tablets and wearables. Working to ensure our breaking news coverage is the best in the business over weekends, David also has bylines at Gizmodo, T3, PopSci and a few other places besides, as well as being many years editing the likes of PC Explorer and The Hardware Handbook.