Originally posted by mlau
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Google Proposing HDCP Content Protection Be Added To Intel's Linux Graphics Driver
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Originally posted by mlau View Post
it encrypts the video data sent over HDMI / DisplayPort / .. cables. Admittedly a stupid way to "pirate" movies, given the datarates involved. There's easier ways
to get at the already compressed source...
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HDCP makes sense in a scenario where the video stream is DRM-protected, and the DRM implementation (decrypting/decoding) is done in a trusted environment (ARM TrustZone for example). This is how it's already done on many set-top-boxes, playstation, Xbox..
Not that it's really effective, there are many HDMI splitters out there who will happily strip HDCP if the sink doesn't support it..
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Originally posted by mlau View Postit encrypts the video data sent over HDMI / DisplayPort / .. cables. Admittedly a stupid way to "pirate" movies, given the datarates involved. There's easier ways
to get at the already compressed source...Originally posted by kravemir View PostWhat does it help? If I have access to physical media and can decode the content, then I can copy content right there, and don't care what's outside of computer.
Still for BD+ protected discs as well as for UHD BDs, the first pirated copies were captured via HDMI and HDCP strippers. Also Netflix is regularly captured via HDMI because nobody knows how to strip the encryption. I also remember that early DVDs were sometimes ripped similarly.
Sure, theoretically you can simply decrypt the Bluray and have the unmodified video stream. But in the reality its not that simple. Especially the new UHD stuff is well protected.
The biggest problem with HDCP is, Chinese 10$ HDCP strippers can remove it for the pirate, yet the legal customer can't play his discs on non-supported displays.
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Originally posted by Mathias View Post
Still for BD+ protected discs as well as for UHD BDs, the first pirated copies were captured via HDMI and HDCP strippers. Also Netflix is regularly captured via HDMI because nobody knows how to strip the encryption. I also remember that early DVDs were sometimes ripped similarly.
Sure, theoretically you can simply decrypt the Bluray and have the unmodified video stream. But in the reality its not that simple. Especially the new UHD stuff is well protected.
The biggest problem with HDCP is, Chinese 10$ HDCP strippers can remove it for the pirate, yet the legal customer can't play his discs on non-supported displays.
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The reality is its not like HDCP support in intel driver going to improve security. Above is a chip that simply takes HDMI and makes of all things CSI-2 that a raspberry pi 3 takes in as camera and it supports the cable transmitting HDCP 1.3 encrypted. There is HDCP 1.4 supporting to CSI-2 as well. Basically to prevent this form of capture would require black listing the old HDCP 1.x outputs and forcing HDCP 2.2 supporting devices. Why not HDCP 2.0 and 2.1 they are already cracked and deprecated.
Now does these patches support HDCP 2.2? Even if it does support HDCP 2.2 there are china made converters that take HDCP 2.2 in one side and output HDCP 1.4 or HDCP 1.3 on the other so that old HDMI monitors work with new HDCP 2.2 content. Of course this does not prevent you putting a HDMI to CSI-2 after the converters and have a raspberry pi 3 capture so rendering HDCP basically worthless for protecting the content travelling over the cable. This does not require hacking anything its just buying the right off the shelf parts and putting it together in the right way..
So the analog output hole just requires more parts but is fairly much alive and well. All HDCP does is force people who don't know better to buy new hardware instead of a converter. The converters means anyone setup with capture gear for HDCP 1.4 with a little box can capture HDCP 2.2 as well.
Reality HDCP is Swiss cheese. Maybe when HDCP 2.3 comes out it might be different. All HDCP is really doing is causing end users to suffer from HDCP sync failures not protecting content from anyone serous-ally wanting it.
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Originally posted by shmerl View PostNo, this garbage should be rejected by Mesa developers. I hope they understand how toxic and unethical this stuff is.Michael Larabel
https://www.michaellarabel.com/
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