[mythtv-users] AACS Cracked Already

Marco Nelissen marcone at xs4all.nl
Sat Jan 27 17:36:06 UTC 2007

>In case anybody missed it, the AACS copy-protection scheme used on  
>both HD-DVD and Blu-Ray disks has apparently been cracked already,  
>according to the BBC and others.

Even the BBC article says this is not true: "a hacker had managed
to decrypt some discs and other people were now able to make copies
of certain titles" and "It does not represent an attack on the  AACS
system itself". Basically, the keys of some titles have been extracted
from the runtime memory of a software player, allowing those disks to
be decrypted. This is NOT like the cracking of CSS, where a short key
length combined with weaknesses in the algorithm allow one to do a
brute-force attack on any disk. Also, BluRay has an additional
protection mechanism which AFAIK has not been compromised yet.

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