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Windows 11 BitLocker Bypassed to Extract Encryption Keys
(gbhackers.com)
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this post was submitted on 06 Jan 2025
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Cybersecurity
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The key has to be stored somewhere to be able to use it. This is full disk encryption, so every single sector that is read or written (except some boot and kernel stuff, presumably) needs to go through that encryption key. You could maybe store it in a cryptographic coprocessor that uses SRAM for the key and key schedule, but those are very uncommon now that AES-NI is popular. And I don't think AES-NI has any special registers that could help here.