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End-to-End Encrypted RCS Messages Referenced in Latest iOS 26.3 Beta

bluecoast said:
Very good point, thank you. We will all have to treat very carefully when/if we use RCS in this way.

I wonder if Apple will expose in the UI as to where the keys are held?
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The MLS protocol used by RCS is not a secret. We don't have to wait for Apple to know how it works.
 
Looking at this from a distance in the UK, where no-one I know uses RCS - nor SMS, MMS or even iMessage to be honest. The land of Whatsapp!
 
Why are people talking about companies like Facebook and Google reading your messages? Do you not understand what E2EE means? Data is encrypted on your device before transit so nobody along the way can read the contents. You’re confusing something like TLS with E2EE.


Also, too bad, so sad for Google.

They were hoping Apple would add RCS using Google’s implementation of E2EE so we’d have a messaging duopoly (iMessage & Google Messages). Instead Apple said they’d work with industry standards bodies to bring E2EE to the RCS standard profile.

Google, 16 years and counting of trying (and failing) to have their own successful version of iMessage or WhatsApp.
 
justanotherdave said:
Why are people talking about companies like Facebook and Google reading your messages? Do you not understand what E2EE means? Data is encrypted on your device before transit so nobody along the way can read the contents. You’re confusing something like TLS with E2EE.


Also, too bad, so sad for Google.

They were hoping Apple would add RCS using Google’s implementation of E2EE so we’d have a messaging duopoly (iMessage & Google Messages). Instead Apple said they’d work with industry standards bodies to bring E2EE to the RCS standard profile.

Google, 16 years and counting of trying (and failing) to have their own successful version of iMessage or WhatsApp.
Click to expand...

The quicker we can have a no-opoply, the better.
 
bozzykid said:
The MLS protocol used by RCS is not a secret. We don't have to wait for Apple to know how it works.
Click to expand...
But typical users don't know that. A short message explaining how encrypted RCS works would be welcome

i.e. like the description for Advanced Data Protection.
 
Looking into this it’s not clear who is holding trust here and how this avoids man in the middle attacks. Everything I’ve seen that talks about that talks about carriers won’t see the message in flight, but does that prevent someone impersonating me to a third party and that third party to me.
 
justanotherdave said:
They were hoping Apple would add RCS using Google’s implementation of E2EE so we’d have a messaging duopoly (iMessage & Google Messages). Instead Apple said they’d work with industry standards bodies to bring E2EE to the RCS standard profile.

Google, 16 years and counting of trying (and failing) to have their own successful version of iMessage or WhatsApp.
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Google has already implemented E2EE using Universal Profile 3.0 and MLS which is the new standard Apple is adopting. I wouldn't be so enthusiastic about the new approach as governments and carriers can prevent this new encryption standard.
 
Useful. Though might take some time for it to be globally available as carriers too have to support it. Took a long time for RCS support to be available with one of the carriers in my country.
 
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svish said:
Useful. Though might take some time for it to be globally available as carriers too have to support it. Took a long time for RCS support to be available with one of the carriers in my country.
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The difference is this is just a toggle and doesn't require carriers to implement RCS. The question is just will they choose to allow encryption.
 
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