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I'll definitely try and get around to it sometime soon. However, I wouldn't be surprised if the situation is the same... After all, the KeyMaster module was ini
by laginimaineb 10y ago
I'll definitely try and get around to it sometime soon. However, I wouldn't be surprised if the situation is the same... After all, the KeyMaster module was initially only meant to keep encryption keys on the device, not to safeguard FDE.
- pdimitar 10y agoSorry for an extremely nooby question, but your comment makes me wonder: Are Snapdragon and Exynos architectures that alike? I mean, do you have any preliminary idea how easy it would be to apply your Snapdragon method to an Exynos SoC?
- laginimaineb 10y agoActually, I would imagine they are nothing like one another. However, Exynos uses a TrustZone TEE implementation to implement the KeyMaster module, just like Qualcomm's Snapdragon. This means that unless that TEE implementation uses a hardware key which is not software accessible, the same issue would be present. Of course, reverse-engineering a new TEE implementation would take a long time... But it sounds like it could be fun.
- pdimitar 10y agoThank you. You should be aware that people like you are unsung heroes and I'd like you to know that many of us who are busy struggling to stay afloat are feeling better knowing that people like you are doing the work you do. Have that in mind. I wish you well.