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Not really. Modern DRM uses Intel ME / AMD / ARM equivalent. These execute code the OS doesn’t have privilege to access.
by dannyw 3y ago
Not really. Modern DRM uses Intel ME / AMD / ARM equivalent. These execute code the OS doesn’t have privilege to access.
- 3pt14159 3y agoOh really, that's news to me. I thought one could always read the video frames one at a time.
- dannyw 3y agoNope, it gets access to its own framebuffer that’s composited in the GPU. OS sees a black viewport, and only a black viewport. The comms is encrypted on the bus using strong cryptography, so you can’t sniff it. All these software blobs are signed and encrypted, you can’t replace it without the signing key.
- 3pt14159 3y agoThanks for letting me know! Really interesting stuff.