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>The SIF will be coded by Apple with a unique identifier of the phone so that the SIF would only load and execute on the SUBJECT DEVICE. If I understand the ci
by chopin 11y ago
>The SIF will be coded by Apple with a unique identifier of the phone so that the SIF would only load and execute on the SUBJECT DEVICE.
If I understand the cited order correctly the firmware is ordered to be constructed in a way that it runs only on the target phone.
- headmelted 11y agoI do wonder though that had Apple not predicted this exact scenario ahead of time (likely), how would they control this? It's unlikely they can rely on hardware protections to provide this device locking, so is it the case that they would build the unique identifier into the image. Optimistically some obfuscation could help but are the FBI/CIA/NSA really more than a few hops away from opening the binary image in a hex editor and changing it by hand? If Apple firmware images for the iPhone are signed per-device then fine, but is that the case? I don't know this but it seems unlikely to me that a custom device-signed build of iOS happens for every iDevice, and if that's not the case, I can't see how Apple can reliably restrict this with confidence.
- chopin 11y agoI agree with you that this will be difficult or maybe impossible to implement. However the court has foreseen the upthread argument as the order shows. As many here I believe that once this backdoor exists it will be somehow exploited (at the very least by further orders).