HDCP Master Key Finally Free.
Just as the MPAA is preparing to offer movies to customers at home while they’re still in theaters by limiting playback to DRM-protected digital outputs only, the HDCP protocol they rely on may have been cracked wide open. All devices that support HDCP, like Blu-ray players, set-top boxes and displays with HDMI inputs, have their own set of keys to encrypt and decrypt protected data and if keys for a particular device are compromised, they can be revoked by content released in the future which will then refuse to play. Now, posts have been floating around on Twitter about a supposed “master key” which renders that protection unusable since it allows anyone to create their own source and sink keys.
Who discovered this and by what technique isn’t immediately clear, but as early as 2001 security researcher Niels Ferguson proposed that it could be easily revealed by knowing the keys of less than 50 different devices. Hardware HDCP rippers like the HDfury2 and DVIMAGIC have been around for a while and various AACS cracks easily allow rips of Blu-ray discs but if this information is what it claims to be, then the DRM genie could be permanently out of the bag allowing perfect high definition copies of anything as long as the current connector standards are around. While it’s unlikely your average user would flash their capture device with a brand new key and get to copying uncompressed HD audio and video, keeping those early releases off of the torrents in bit perfect quality could go from difficult to impossible.
Oh, I love Blu-Ray
The only reason that I
Use my PS3
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UPDATE: http://www.wired.com/threatlevel/2010/09/no-pirate-bonanza/
http://hardware.slashdot.org/story/10/09/17/0247246/HDCP-Master-Key-Is-Legitimate-Blu-ray-Is-Cracked
“Intel has confirmed that the leaked HDCP master key protecting millions of Blu-ray discs and devices that was posted to the Web this week is legitimate. The disclosure means, in effect, that all Blu-ray discs can now be unlocked and copied. HDCP (High Definition Content Protection), which was created by Intel and is administered by Digital Content Protection LLP, is the content encryption scheme that protects data, typically movies, as they pass across a DVI or an HDMI cable. According to an Intel official, the most likely scenario for a hacker would be to create a computer chip with the master key embedded it, that could be used to decode Blu-ray discs”