Linked by Thom Holwerda on Tue 14th Sep 2010 21:21 UTC
Multimedia, AV If the rumours are true, and if this Pastebin post (be sure to mirror the key if that won't get you in trouble with your authorities) is legitimate, then it looks like High-bandwidth Digital Content Protection has been cracked so hard its mother's mother felt it. HDCP is a copy protection mechanism which protects the audio and video streams sent over DisplayPort, HDMI, and DVI.
Thread beginning with comment 441232
To read all comments associated with this story, please click here.
Now tell me if I'm wrong....
by leech on Wed 15th Sep 2010 22:50 UTC
leech
Member since:
2006-01-10

It's been a while since I read anything about this, but at some point in time there were people saying that HDCP would prevent a High Definition data stream from playing on Linux, because the Video drivers had to support HDCP.

At the time I said "who cares, I'm not getting bluray for a long time" but then I finally got a Bluray drive.

Now that I have makemkv bought and paid for, and lxbdplayer that is just a java front end for playing bluray through mplayer, it certainly LOOKS like it's playing in HD on my screen!

Is it lying to me that it's in 1920x1080?

Otherwise, my question is. Do I give a crap that HDCP was hacked? My first reaction of course is a Nelsonesque 'HA HA'. But really. Unless of course HDCP IS implemented in the Linux nVidia drivers....

Reply Score: 2

RE: Now tell me if I'm wrong....
by Zifre on Thu 16th Sep 2010 00:27 in reply to "Now tell me if I'm wrong...."
Zifre Member since:
2009-10-04

It's been a while since I read anything about this, but at some point in time there were people saying that HDCP would prevent a High Definition data stream from playing on Linux, because the Video drivers had to support HDCP.

I think that was AACS, not HDCP. Certain high definition videos are encrypted with AACS to stop them from being played on "unauthorized" devices. HDCP is used by the OS/video drivers/movie players to prevent you from recording the output of your monitor the video with a TV tuner. So, Linux has always been able to display high definitions, you just can't play encrypted movies unless you have the AACS key.

In other words, if you use an "authorized" OS, you have to worry about having an HDCP monitor, and AACS is irrelevant since it is handled by the OS.

If you have an "unauthorized" OS, then HDCP is irrelevant, and you have to worry about having the AACS keys to decrypt the movie.

Reply Parent Score: 2

leech Member since:
2006-01-10

Thanks for that. That's basically what I had thought / knew.

The AACS Keys have been hacked for quite some time now and I have been able to (for the most part) play all of my legally purchased bluray movies on Linux.

There have been a few that I have had problems with.

The Firefly series ("Curse your sudden but inevitable betrayal!") has problems with a corrupted video stream. There were one or two that it couldn't fetch the aacs key for, I have forgotten which ones specifically now, but the others work fine, just without menus.

One less reason to dual boot!

Reply Parent Score: 2