[tc] [schneier: AACS Cracked?]

[George Orwell]

----- Forwarded message from schneier -----

Subject: AACS Cracked?
From: schneier
Date: Fri, 29 Dec 2006 06:02:23 -0600

   This is a big deal. AACS (Advanced Access Content System), the copy
   protection is used in both Blu Ray and HD DVD, might have been cracked --
   but it's still a [1]rumor.

   If it's true, what will be interesting is the system's in-the-field
   recovery system. Will it work?

     Hypothetical fallout could be something like this: if PowerDVD is the
     source of the keys, an AACS initiative will be launched to revoke the
     player's keys to render it inoperable and in need of an update. There is
     some confusion regarding this process, however. It is not the case that
     you can protect a cracked player by hiding it offline (the idea being
     that the player will never "update" with new code that way). Instead,
     the player's existing keys will be revoked at the disc level, meaning
     that new pressings of discs won't play on the cracked player. In this
     way, hiding a player from updates will not result in having a cracked
     player that will work throughout the years. It could mean that all bets
     are off for discs that are currently playable on the cracked player,
     however (provided it is not updated). Again, this is all hypothetical at
     this time.

   [2][IMG] [3][IMG] [4][IMG]

   [5]link

References

   Visible links
   1. http://arstechnica.com/news.ars/post/20061228-8510.html
   2. http://feeds.feedburner.com/~f/schneier/fulltext?a=XHVB2y4A
   3. http://feeds.feedburner.com/~f/schneier/fulltext?a=hEe2xBta
   4. http://feeds.feedburner.com/~f/schneier/fulltext?a=B1ZYAvyw
   5. http://www.schneier.com/blog/archives/2006/12/aacs_cracked.html

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