2 ms·
It’s not the same function. Think about it this way: you create an RCS message and hit send. Apple has to encrypt it now but all they have is a phone number. T
by criddell 2y ago
It’s not the same function.
Think about it this way: you create an RCS message and hit send. Apple has to encrypt it now but all they have is a phone number. The phone number might belong to a local carrier or one on the other side of the planet. They need the public key associated with that number, right? Who has that? How do they get it? Who owns and manages that infrastructure?
- acdha 2y agoThat’s the same problem they have with iMessage: you can watch this the first time you use a new number and it displays green at first but switches to blue once it retrieves the other party’s key. That happens by connecting to Apple’s servers, which seems likely to be the same thing they’d do for RCS. Another function which is the same: you connect to the server to register your device to your account. It uses hardware attestation to verify that the hardware is what it claims, trying to make spammers have to buy physical devices and to prevent spoofing.