http://bits-please.blogspot.fr/2016/06/extracting-qualcomms-keymaster-keys.html https://github.com/laginimaineb/ExtractKeyMaster https://github.com/laginimaineb/android_fde_bruteforce https://github.com/laginimaineb?tab=repositories
In this blog post, I'll demonstrate how TrustZone kernel code-execution can be used to effectively break Android's Full Disk Encryption (FDE) scheme. We'll also see some of the inherent issues stemming from the design of Android's FDE scheme, even without any TrustZone vulnerability. A couple of months ago the highly-publicised case of Apple vs. FBI brought attention to the topic of privacy - especially in the context of mobile devices... Full disk encryption is used world-wide, and can sometimes be instrumental to ensuring the privacy of people's most intimate pieces of information. As we've seen, the current encryption scheme... can be hacked by an adversary or even broken by the OEMs...
