Mark Ermolov Profile picture
Aug 26 3 tweets 1 min read Read on X
Intel HW is too complex to be absolutely secure! After years of research we finally extracted Intel SGX Fuse Key0, AKA Root Provisioning Key. Together with FK1 or Root Sealing Key (also compromised), it represents Root of Trust for SGX. Here's the key from a genuine Intel CPU😀 Image
They really tried hard to protected the key: the part of ucode works perfectly but they forgot to clear the internal buffer in the core IP holding all fuses (including FK0) acquired from Fuse Controller Image
The last step is remaining nevertheless to fully compromise Intel SGX - knowing of FK0 Fuse Encryption Key (FK0 FEK), but we hope to do it like we did for CSME...

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