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Written by tinfoil
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Tuesday, 30 January 2007 08:03
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Less than a day after its release, Windows Vista much discussed DRM protection may have been broken. However, it does bypass DRM. As part of the Protected Media Path, (PMP), Windows Vista sets up a number of requirements for A/V software and drivers in order to ensure it complies with the demandes of the media companies. One of these features, which has been heavily criticized as being the actual reason behind driver signing, is that “some premium content may be unavailable” if test signing mode is used. Originally, I assumed that this meant that the kernel would set some sort of variable, but this didn’t make sense: once your unsigned driver could load, it could disable this check. After reading the PMP documentation however, it seems to me that the “feature” explained is more likely the cause of this warning on premium content. This feature is the ability of the PMP to notify A/V applications that there are unsigned drivers on the system, as well as provide a list of unsigned drivers. The idea is that the application can either outright refuse to play content, or that it can scan for known anti-DRM drivers which might be attempting to hook onto the unencrypted stream. This leads me to believe that it’s up to applications, not the OS, to enforce this DRM check.
Ya, so I don't know what is going on either, but it looks like DRM has been bypassed with a hack of some description. Alex is understandably leary about releasing the code to the uneducated masses due to his overwhelming fear of Lawyers and the DMCA. Source
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Last Updated ( Tuesday, 06 February 2007 10:22 )
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