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I’ve never heard the software updates are personalized. Can you give a source? I’m not sure what it would be for. “According to the logged in iCloud account th
by MBCook 3y ago
I’ve never heard the software updates are personalized. Can you give a source? I’m not sure what it would be for.
“According to the logged in iCloud account this user likes reggae, thriller movies, and paint programs. So… don’t patch flaw X7b-9?”
- yjftsjthsd-h 3y agoI can't see it either, but the bit about it not being cachable would seem to lend credence to the idea. Maybe they did something weird like signing/encrypting it with a per-device key? Not that I can see why they'd do that...
- saagarjha 3y agoI believe this is to prevent replay attacks?
- oefrha 3y agoiOS apps, and by extension, app updates are encrypted with a per-account key. No idea why it would be done for system updates though. iOS system update .ipsw’s certainly aren’t.
- saagarjha 3y agoApps are encrypted as a DRM scheme. iOS updates aren’t encrypted but are authorized based on your hardware ID.
- bdavbdav 3y agoThey’re signed with a key from the CPU per device.