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Cheap HDMI cables typically leak image information quite nicely. With the right equipment, it's really easy to get a decent resolution image of the radiation pi

Cheap HDMI cables typically leak image information quite nicely. With the right equipment, it's really easy to get a decent resolution image of the radiation picked up from an HDMI cable even over tens of meters.

crtasm 6y ago
Does anyone have a link to a demonstration of this? I'm not sure what keywords I should be searching.
- segfaultbuserr 6y ago
  Keywords: HDMI RF leakage attack. Putting them in a search engine, I was able to find an article about it quickly. * DVI (HDMI) and DisplayPort digital video interfaces in electromagnetic eavesdropping process https://sci-hub.se/https://doi.org/10.1109/EMCEurope.2019.8872097 https://sci-hub.se/https://doi.org/10.1109/EMCEurope.2019.88... You can also search for "side-channel" and "TEMPEST". --- The signals analyzed below are LVDS and VGA, not exactly HDMI, but also an interesting read - because the LVDS signal is used to drive the LCD panel and it's also a major source of leakage. * Exposing Computer Monitor Side-Channel Vulnerabilities With TempestSDR https://hackaday.com/2020/07/15/exposing-computer-monitor-side-channel-vulnerabilities-with-tempestsdr/ https://hackaday.com/2020/07/15/exposing-computer-monitor-si... The author of the program even wrote a paper on that for a master degree. https://raw.githubusercontent.com/martinmarinov/TempestSDR/16e526f0ee440f97bd3d3064cb94b8312bb33a2d/documentation/acs-dissertation.pdf https://raw.githubusercontent.com/martinmarinov/TempestSDR/1...
- rianmcguire 6y ago
  Here's one: https://www.youtube.com/watch?v=BpNP9b3aIfY https://www.youtube.com/watch?v=BpNP9b3aIfY