Anyway, if you rely on BitLocker in TPM mode (boot without PIN), you should know that anyone can steal your computer, sniff 32 bytes off of the LPC bus, stick them into libbde, and decrypt your disk. Yes, it's that easy. Solder 7 wires to $favorite_fpga_board, decrypt drive.
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We all knew it was going to be this dumb, but today I'm here to tell you it *is* this dumb and I just implemented it.
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Also many computers (e.g. anything with an external TPM module, but also the many that have LPC on a debug or other extension port) have headers for LPC, so then you don't even need to solder anything.
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Replying to @marcan42
I should really get in on this LPC fun. I've been meaning to do some stuff with SMBus sniffing on PCIe and DIMM slots for ages but LPC now seems like it would be more interesting.
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Replying to @gsuberland
It's just 33MHz, it's slow as heck by modern standards.
10:16 AM - 3 Jan 2019
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