LPC bus tap. I feel like I'm modding PS2s again...pic.twitter.com/cXqzRa6SAN
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Looks like it works. I see a bunch of Super I/O accesses, then COM1, Some port 90h pokes but nobody's listening (POST codes?), PS/2 KBC, and more pokes to 90h and 99h.pic.twitter.com/MEA8cTpxV9
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Why am I doing this? TPM sniffer/MitM PoC. Because people who think that transparent-mode (TPM-only) BitLocker is secure are funny.
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What are you using to read the data?
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twlfpga ftw
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good old twlfpga board :)
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Hi bro, can you tell me more about this setup? what kind of attack are you trying? :D I'm curious hahaha
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What fpga board? What are the yellow wires out the side? And what are you using for your design to trace/sniff this?
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bushing's twlfpga (really just a Spartan3E + FT2232H), which I keep reusing for everything. The yellow wires don't go anywhere, but would've been a DSi RAM tracing port, later PS3 flasher. Design is a trivial 8bit logic analyzer in verilog (just dumps raw samples out the FTDI).pic.twitter.com/3zkpp2VEmV
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