DVD Security Group Says It Has Fixed AACS Flaws

SkillZ wrote to mention an article at the IBT site discussing a fix to the security breech of the HD DVD and Blu-ray media formats. "Makers of software for playing the discs on computers will offer patches containing new keys and closing the hole that allowed observant hackers to discover ways to strip high-def DVDs of their protection. On Monday, the group that developed the Advanced Access Content System said it had worked with device makers to deactivate those keys and refresh them with a new set."

Comments

What about the other holes?

[Tragek]

"AACS is a high-profile technology and is protecting high-profile content, so we fully expect there will be future attempts," Ayers said.

How about future successes ?

Re:Serious Question

[topical_surfactant]

Current players will work fine until you attempt to play a new HD-DVD with the "corrected" AACS. Then your player will cease to play all HD-DVDs until such time that you update with a hot, steaming pile of DRM horse shit.

Already hacked via Xbox 360 add on VID

[appleguru]

From Engadget:

In parallel efforts, hackers in both the Xboxhacker and Doom9 forums have exposed the "Volume ID" for discs played on XBOX 360 HD DVD drives. Any inserted disc will play without first authenticating with AACS, even those with Volume IDs which have already been revoked by the AACS LA due to previous hacking efforts. Add the exposed processing keys and you can decrypt and backup your discs for playback on any device of your choosing. Now go ahead AACS LA, revoke the Toshiba-built XBOX 360 HD DVD player... we double-dog dare ya.

Sources:
http://www.xboxhacker.net/index.php?topic=6866.0
http://forum.doom9.org/showthread.php?&t=124294&pa ge=6
http://www.engadget.com/2007/04/10/aacs-hacked-to- expose-volume-id-windvd-patch-irrelevant/

Re:"Fixed Flaws"?

[ZorbaTHut]

No, that will work fine too. They haven't changed a global key of any kind. They've just revoked the old key for new media. All the newer keys still work fine. You can conceptually think of it as all discs supporting thousands of keys, some of which are used by players and some of which simply exist for future not-yet-constructed players to use - there's plenty of possible keys left for new players to work on old discs.

When they revoke keys, they simply remove the old compromised keys from new discs, so players relying on those keys can't play anything.