Blu-Ray/HD-DVD completly cracked...universal processing key

[pascal]

Whatever is the reason the expectations were higher.
Usually as time advance a new technology adoption with significant technicall advantage at close price point will have higher salles. This happened to consoles for example.

Now maybe the opinion makers dont feel fully confortable with the technology on the table, and customers are waiting to see what happens.

 

[Bobbler]

I feel the same way, 'cept I think the industry should give up on DRM and the like.

I don't think continually challenging the crackers is really getting them much of anywhere.

Don't get me wrong, I wouldn't mind a DRM free world either... or at least one where the DRM is so widely adopted that it causes no inconveniences in where people wish to play back the given content (making it a non issue).

I expect individuals to be a bit more aware and learn a bit faster than big corporations. I don't understand why the doom9 folk don't quite understand they are only causing content providers to seek greater and greater amounts of DRM, rather than saying "oh, well, we can't win, so lets just not bother with drm" -- I'd expect the doom9 folk to learn to take a different route, if they truly want a drm free world. It's the battle of who is more stubborn, really, and as stubborn as those on doom9 and elsewhere can be, I'm not sure they can match that of a content holding corporate giant.

I expect somewhat irrational and defensive behavior from the content holding empires (which is another topic entirely)... I expect a bit more out of individual people, which is why the chuckle heads at doom9 disappoint me a bit.

Just because they are cracking the DRM does not automatically mean they have pirated the media itself, they may just not want to deal with any of that nonsense.

I'm guessing you have never bought music from itunes and tried playing it outside of itunes or an ipod either?

No doubt there are legitimate uses, but with those uses inevitably comes the flood of piracy, which sort of overshadows the legitimate uses, by a rather large margin.

I've not had too much trouble with itunes drm - I have worked around it a couple times, but it hasn't been a big enough issue that I feel the need to stick it to the man.

I can understand the disdain for DRM in theory, but I just haven't been inconvenienced by it enough in practice to say screw it and start ridding DRM from everything I have. From my experience everything just works and there have been very few instances where I wished I could play it somewhere I wasn't allowed.

 

[trinibwoy]

I'd expect the doom9 folk to learn to take a different route, if they truly want a drm free world.

I could be wrong but do you really think their motivation is so noble? Isn't it simply that it's a challenge to defeat DRM implementations? I'm pretty sure all the guys who've been cracking game copy protection for years now aren't doing it because they think people deserve free games.

 

[Bobbler]

I could be wrong but do you really think their motivation is so noble? Isn't it simply that it's a challenge to defeat DRM implementations? I'm pretty sure all the guys who've been cracking game copy protection for years now aren't doing it because they think people deserve free games.

No doubt. The majority are likely to just enjoy the cracking scene more than anything... but I imagine there is a rather big overlap of those that enjoy the scene and those that don't like the nature of DRM. My first comment in the thread covered what I thought about those that do it as a hobby though. =o

 

[bloodbob]

It's not about blacklisting. The problem is, when the device key is revoked, all further released disks don't have keys encoded with that device key, so you can't decode these disks with that key.

No it can't be like that because what happens if they make a new hd-dvd drive in 5 years time? Cause that is in the future and the drive won't have a key allocated to it yet how is it going to play old HD-DVD disks.

 

[Zaphod]

No it can't be like that because what happens if they make a new hd-dvd drive in 5 years time? Cause that is in the future and the drive won't have a key allocated to it yet how is it going to play old HD-DVD disks.

All discs can be decrypted by all devices in the pool, assigned (existing players) or otherwise. There's billions of possible device keys, so they're not running out anytime soon. That isn't what this attack is about though. No device (player) keys have been compromised (at least not publicly), rather poor implementation of an intermediate step that has allowed them to get virtually everything but the device keys from the software players. They probably will still revoke these keys at people are using the players exploitability as tools, but the key that compromises all released media to date has to be changed at the disc manufacture level.

 

[bloodbob]

There's billions of possible device keys, so they're not running out anytime soon.

Which would means there would be gigabits of data which seems a completely waste of space :/

 

[pcchen]

I am not sure about the number of device keys, but it is in the neighborhood of tens of thousands. The device makers buy device keys from the AACS group. Publishers, on the other hand, buy title keys which are pre-encrypted with current device keys. So publishers know only the title keys they bought, and device makers know only the device keys they bought.

 

[Capeta]

Whatever is the reason the expectations were higher.
Usually as time advance a new technology adoption with significant technicall advantage at close price point will have higher salles. This happened to consoles for example.

So PS3 is kicking Wii's butt in sales because of technical advantage and peppy pickup rate?

Now maybe the opinion makers dont feel fully confortable with the technology on the table, and customers are waiting to see what happens.

Consumers are somewhat hesitant because of two competing formats not because of AACS...

 

[Zaphod]

Which would means there would be gigabits of data which seems a completely waste of space :/

No, they use a set of keys for each device and a three approach so they obviously don't store every possible unique key on every disc. You can read the specs from AACSLA (which are admittedly a bit over my head at times).

The Media Key Block (MKB) enables system renewability. The MKB is generated by AACS LA, and allows all compliant devices, each using their set of secret Device Keys, to calculate the same Km. If a set of Device Keys is compromised in a way that threatens the integrity of the system, an updated MKB can be released that causes a device with the compromised set of Device Keys to be unable to calculate the correct Km. In this way, the compromised Device Keys are “revoked” by the new MKB.

 

[bloodbob]

It's not about blacklisting. The problem is, when the device key is revoked, all further released disks don't have keys encoded with that device key, so you can't decode these disks with that key.

By the drive authentication, the drive and the PC host verify each counterpart is an AACS compliant device that has valid certificate signed by the AACS LA and can sign and verify digital signatures specified in this document. In addition, the drive and the PC host verify each counterpart is not revoked by checking the Host Revocation List (HRL) and the Drive Revocation List (DRL), respectively. To do this, the drive shall store the most recent HRL it has encountered and the PC host shall store the most recent DRL it has encountered. When the drive authentication is successful, the drive and the PC host have a shared Bus Key (BK), and can proceed to the further steps.

?? you seem to contradict the AACS sepcifications.

This allows for the AACS LA to actively revoke someone privildges rather the passively. So yes it is also about black listing.

 

[pcchen]

?? you seem to contradict the AACS sepcifications.

This allows for the AACS LA to actively revoke someone privildges rather the passively. So yes it is also about black listing.

Of course they can black list a device, but what I said is, even if you don't respect to the black listing, you can't decode discs released after the revocation because the new discs do not have your device key, so you can't decode them anyway.

 

[pascal]

So PS3 is kicking Wii's butt in sales because of technical advantage and peppy pickup rate?

What is peppy? Please, english for foreigners. Thanks
What I mean is that the PS2 sold much more than the PS1.
I think I have some economist.com graphs showing the increase in demand after each generation of console (not between console of the same generation).

Consumers are somewhat hesitant because of two competing formats not because of AACS...

Consumers are hesitant mainly because of competing format and IMHO also because opinion makers dont feel comfortable with the current situation.

 

[Simon F]

What is peppy? Please, english for foreigners. Thanks

I'd go further and ask for English for English (well, "Strine") speakers.

 

[DemoCoder]

All of these "cracks" are premature claims. Most of the HD-DVD/BRD shovelware hitting the shelves is not really taking advantage of advanced AACS features. Not using sequence keys, using the same processing key for every movie. Basically, they haven't really "switched on" full-AACS yet.

 

[Geo]

What is peppy? Please, english for foreigners. Thanks .

Handy to bookmark (in mine, for instance): http://www.onelook.com/