Description
A company has implemented a “secure” display system where confidential information is transmitted from an electronic board in a control station to a small screen where employees follow the displayed orders. The card and the screen are located in secure premises, but the connecting wires pass through a part of the site that is accessible without surveillance: you plug in your logic analyzer there and retrieve a capture.
You have learned from leaked specifications that the screen is an ILI9341, used without its touchscreen ability, and without “backlight” control. Can you uncover the transmitted secrets?
Files
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soupe-miso.vcd.tar.xz
548.69 KiB – 7a9a2ca4813121d4be891e45cd63bd54adcd0b11185accd9b58f70f0b91774e0
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