3 ms·
Well it certainly doesn't work like that on an iPhone.
by abritishguy 12y ago
Well it certainly doesn't work like that on an iPhone.
- kabouseng 12y agoPlease illuminate me then as to what the iPhones processor architecture looks like, seeing as iPhones also use Qualcomm basebands, same as most Android devices...
- abritishguy 12y agoThe baseband processor has no access to the parts of memory it is not meant to, possibly some of the early iPhones did but currently they are properly isolated.
- kabouseng 12y agoPlease substantiate with a link.
- sigterm 12y agoConsidering iPhone has their custom processor design, this information is most likely confidential. However, it isn't inconceivable that some sort of memory protection method similar to IOMMU can be added to the internal fabric to prevent baseband processors (or any other peripherals) from accessing arbitrary physical memory.
- kabouseng 12y agoThats fine, I just wasn't sure how abrittishguy can state his assertions so absolutely as facts.
- function_seven 12y agoThe baseband firmware is cyptographically signed by Apple (and would thus require their complicity in backdooring) and the A7 models have a so-called Secure Enclave, which handles the encryption and decryption of memory contents. Link: http://www.apple.com/ipad/business/docs/iOS_Security_Feb14.pdf http://www.apple.com/ipad/business/docs/iOS_Security_Feb14.p...
- kabouseng 12y agoThank you very much, I'll definitely read through the doc through the course of the day. But a cursory glance still does not mean that rogue software on the baseband cannot compromise your phone, but it is getting more and more difficult to place rogue software on the baseband. "And would require Apple's complicity" - Or perhaps rather Qualcomms's...
- kabouseng 12y agoWhy the downvote?
- cwyers 12y agoThey still don't have physical keyboards.