DVD-Audio CPPM encryption broken
by Ryan Block 
posted Jul 7th 2005 at 9:20AM
Remember when DVD Jon released the DeCSS crack
to decrypt DVD video files a few years back? Seriously, who could forget where they were at that moment? Well, no, he
didn't exactly make a comeback to bust on the DVD-Audio standard's supposedly beefed up implementation of what they
(once called) the CPPM (Content Protection for Pre-recorded Media) crypto standard, but that certainly didn't stop
other peeps from breaking it wide open. It never does. That's right, they cracked DVD audio. Peep the tools over at
Engadget fav Rarewares, and happy evil communist music piracy
fair use!
[Via slashdot]
Filed under: Home Entertainment
Reader Comments (Page 1 of 1)
John Laur @ Dec 19th 2005 1:02AM
CPPM was not broken or exploited. They released a patch for WinDVD that can make the program output the decrypted audio stream. Future DVD-Audio discs will probalby ship with WinDVD's current key revoked. This is similar to the first DVD (Video) decrypting that was done via extracting the CSS key from the software Xing DVD player; I'm just suprised that this had not happened before now!
It does open the way for CPPM to be broken. If an algorithm to find a valid key that is similarly fast to the DeCSS algorithm can be constructed, then DVD-Audio decrypting will be future-proofed.
Ryan @ Dec 19th 2005 1:02AM
is this news? I have had the 5.1 DVD-Audio rip of the new Nine Inch Nails disc running on xbmc for a couple months now.... (buy it though, REAL music deserves to be paid for)
Eduardo @ Dec 19th 2005 1:02AM
to #2, then I guess that cd shouldnt be bought hmm?
to engadget...!Hail the red flag, for the masses will come forth and establish the dictatorship of the proletariat so that we may all share our music!!!
Spec @ Dec 19th 2005 1:02AM
When will they learn...
Encryption is NOT copy protection.
Encryption can not BE USED as copy protection.
Ryan @ Dec 19th 2005 1:02AM
#3: ouch. Not a brilliant disc, but you won't get a better demo of 5.1 listening to Nickelcrap.
Mediaplace @ Dec 19th 2005 1:02AM
These are good news for us, but I'm afraid this is an advantage to SACD.
With DVD-A's cripto broken they will forget very soon this format and implement even better SACD.
And that is a threat.