Firefox gets closed-source DRM

Posted May 15, 2014 21:01 UTC (Thu) by josh (subscriber, #17465)
In reply to: Firefox gets closed-source DRM by glisse
Parent article: Firefox gets closed-source DRM

If the CDM is properly sandboxed, the content won't be any more protected from recording on Windows, either.

Firefox gets closed-source DRM

Posted May 15, 2014 21:53 UTC (Thu) by glisse (guest, #44837) [Link] (1 responses)

I expect on windows there is API like on Android which allow you allocate write only buffer of memory that can be written by privileged code and than composited using the hardware ie only the GPU can read back the memory to composite it.

Firefox gets closed-source DRM

Posted May 15, 2014 22:09 UTC (Thu) by josh (subscriber, #17465) [Link]

Sure, but that can obviously be faked as well. The question is then whether you allow the closed-source CDM to authenticate with the platform's protected audio-video path without completely breaking the sandbox model.