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HDCP DRM "master key" found?

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  • #46
    I found an intersting article about HDCP encoding in realtime: HDCP stream decoding in real time

    researchers from Stony Brook University[...]estimated that a "high-end CPU with a 64-bit CPU" should be able to decrypt 30 frame per second 1080p content using two cores and around 1.6GB of RAM.
    So looks like Intel leaked these HDCP key to sell more high-end CPU's

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    • #47
      Originally posted by Fenrin View Post
      I found an intersting article about HDCP encoding in realtime: HDCP stream decoding in real time



      So looks like Intel leaked these HDCP key to sell more high-end CPU's
      How about running it on a GPU though? GPU's tend to be easier with encrypt/decrypt type functions.

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      • #48
        Originally posted by droidhacker View Post
        Bloody edit limit...
        Math glitch... those numbers are a little large... not GB/TB, but Gb/Tb (bits, not bytes). But still... 1 movie = 1 TB.
        Now we need bigger HD's just to hold our uncompressed HD movie collections

        We do need a BD player for Linux

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        • #49
          Originally posted by droidhacker View Post
          How about running it on a GPU though? GPU's tend to be easier with encrypt/decrypt type functions.
          Bloody edit limit...

          GPU's would indeed be a good choice to handle the encrypt/decrypt as well as the compression/decompression if necessary. Nvidia and ATI/AMD still are in an arms race to create the fastest GPU, so we'd win in the end on this one.

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          • #50
            Capturing raw hd was done before AACS was cracked as there has been other cracks for HDCP, you can get ~3x lossless low-CPU compression which brings it down to about 60-70 MB/s and ~300 GB for a movie. If I remember correctly the one I read about only used a dual RAID0 array to do it. And a HDMI capture card, of course.

            It's not so much that it can't be done as that there are better alternatives. It doesn't help Linux users at all because it's DRM on the graphics output, not the source material. The only people who really benefit is some Chinese company who'll make a better HDCP stripper.

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