January 2018
Beginner to intermediate
402 pages
10h 6m
English
book
Practical Mobile Forensics - Third Edition
by Rohit Tamma, Oleg Skulkin, Heather Mahalik, Satish Bommisetty
Content preview from Practical Mobile Forensics - Third Edition
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The normal mode
When an iPhone is switched on, it is booted to its operating system; this mode is known as the normal mode. Most regular activities (calling, texting, and so on) performed on an iPhone will be run in the normal mode.
When an iPhone is turned on, internally, it goes through a secure boot chain, as shown in the following figure. This does not occur for jailbroken devices. Each step in the boot-up process contains software components that are cryptographically signed by Apple to ensure integrity.
A secure boot chain of an iPhone in normal mode
The Boot ROM, known as the secure ROM, is read-only memory (ROM), and is the first significant ...