jetlib.sec » Hack a Day » Overlaying video on encrypted HDMI connections

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Hack a Day

• January 21, 2012
• 

  Overlaying video on encrypted HDMI connections

  Posted: January 21st, 2012, 9:52am PST by Brian Benchoff

  Tags:  video hdmi doesn encryption-scheme man-in-the-middle-attack master-key hacks  

  [bunnie] is up to his old tricks again. He successfully implemented a man-in-the-middle attack on HDCP-secured connections to overlay video in any HDMI video stream. There’s a bonus, too: his hack doesn’t use the HDCP master-key. It doesn’t violate the DMCA at all. HDCP is the awful encryption scheme that goes into HDMI-compatable devices. Before [...]