Re: Encryption comes to RCS at last on iPhones.

Marion <marion@facts.com> writes:

On Tue, 18 Mar 2025 12:12:16 +0100, Arno Welzel wrote :
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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.

Since MLS will become part of RCS, Google would be stupid not to
implement it. In fact when MLS is implemented, there is no need to keep
the proprietary solution in place - maybe just as a fall back for old
devices.

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Google is already on record for adopting MLS the same time Apple does.
What's interesting though is how it will work when the Internet sucks.
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Nothing can happen until the two *devices* exchange the keys, right?
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Apparently the fallback will be two-fold if there is no Internet:
a. Queue the message for a while, and, if necessary... b. Eventually
fall back to SMS/MMS
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But the fallback will be *different* depending on WHO is offline!
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I use the last known good version of PulseSMS so I don't have RCS, but
apparently those with Google Messages have to set an option to get that.
Automatically resend as SMS/MMS = on/off

With Google Messages, if you send a message by RCS and you see it has
not been delivered or read, because the ticks have not lit up, you can
tap the message and then you get an option to switch to SMS. I think you
used to be able to hold down the send button, but that seems to have
changed.