Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion. Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules. |
5th March 2007, 01:48 | #21 | Link | |
Registered User
Join Date: Jan 2007
Posts: 11
|
Quote:
That is, if the player has to do something to tell the drive about the revocation. If the drive detects it by itself, then attempting to play a newer disc will result in the drive refusing to work with the older host private key. Assuming that the player does need to tell the drive about the revocation, then an older host private key could theoretically be used in a non-revocation-compliant player even on newer discs and then only a newer device key or processing key would be needed. However, I'm sure AACS LA would not have left such a big hole open, meaning that the host key revocation is probably an automatic thing on the drives (for example, if the drive checks the host signature against something on the disc). Of course, older discs will still be able to be decrypted, as the volume unique keys or volume IDs for the discs will have likely already been published. Last edited by ShadowFlare; 5th March 2007 at 01:54. |
|
5th March 2007, 06:20 | #22 | Link |
Registered User
Join Date: Sep 2006
Posts: 390
|
I believe this was already clear but I will explain it very clearly now:
When a new disc is inserted the drive is told not to give Volume IDs to the Software Player with the now found Private Key. It will remember this in its permanent memory. This means that from that moment: old and new discs will not work anymore (because of the missing Volume ID). Until we find a new Private Key that is. Of course if you store (or we let the program automatically store) all VUKs for all old discs you inserted before putting in the new disc in the drive these old discs can still be decrypted based on the VUKs. The reason: VUKs are not revokable (as muslix64 already pointed out). Thats why we always have to keep collecting VUKs. This is just an easier way and a program can do it automatically. Last edited by arnezami; 8th March 2007 at 17:40. |
5th March 2007, 11:44 | #23 | Link | |
Registered User
Join Date: Feb 2007
Posts: 86
|
Quote:
Then how will you explain this: http://forum.slysoft.com/showthread....5247#post15247 Slysoft developers say AnyDVD HD will not be affected by this scenario... |
|
5th March 2007, 14:07 | #24 | Link |
Country Member
Join Date: Sep 2004
Location: is everything!
Posts: 6,499
|
@supergoof
A one line answer with no technical theory to back it up? Just sounds like "trust me, I'm a salesman" to me. I suppose they are inferring that they'll find a kludge when the time comes (as they do for regular DVDs that AnyDVD has problems with). Regards
__________________
Les Only use genuine Verbatim or Taiyo Yuden media. |
5th March 2007, 19:15 | #25 | Link |
Registered User
Join Date: Sep 2006
Posts: 390
|
This is for those eagerly awaiting a proggy:
http://www.sendspace.com/file/g6vuw3 Its just a windows ported version of the program made by jx6bpm (which was written for linux). So it will "only" give you the Volume ID. But thats pretty cool by itself . (combining it with evdberg's mkb.exe program you can in fact already retrieve VUKs this way). Please test it on different machines etc to see if there are any problems. I will extend this program, clean up the source and will then release all. This will take at least several days given my available time. Regards, arnezami Last edited by arnezami; 5th March 2007 at 22:20. |
5th March 2007, 20:52 | #26 | Link | |
Registered User
Join Date: Oct 2002
Posts: 65
|
Quote:
I really don't want to sound like a suck up Arnezami but you really are awesome bro. The wealth of knowledge you have brought to this forum (not to mention the time you have devoted) is truly amazing. Keep up the terrific work. g |
|
5th March 2007, 22:37 | #28 | Link |
Registered User
Join Date: Sep 2006
Posts: 390
|
Thanks for all those kind words .
You guys just promise one thing: if something would ever happen to me (or for some reason I will go silent) you will double your own efforts and never stop at trying to defeat DRM! Then will my mission would have really been worth it . But I know you will . My intend has always been to inspire other people to let the big (movie) industries know we will buy their stuff gladly. But we will not tolerate them to restrict our fair use rights and if they try we will embarras them while trying. Until they realize its pointless. The really determined people are not the pirates: its the people who feel unjustified and will do everything in their power to regain their own fair use rights. Honest people will and should always fight unjust laws and policies. Regards, arnezami Last edited by arnezami; 8th March 2007 at 17:42. |
6th March 2007, 01:12 | #30 | Link | |
Registered User
Join Date: Jan 2007
Posts: 28
|
Quote:
Aside from this small point, I imagine development is about to pick back up. |
|
6th March 2007, 02:28 | #31 | Link | |
Dwight Schrute's homeboy
Join Date: Jan 2007
Location: The Office
Posts: 136
|
Quote:
|
|
11th March 2007, 10:19 | #39 | Link | |
Registered User
Join Date: Feb 2007
Posts: 49
|
Quote:
And I bet no court would ever say that a random number can be copyrighted |
|
12th March 2007, 19:08 | #40 | Link | |
Registered User
Join Date: Feb 2007
Posts: 47
|
Quote:
"No technical theory to back it up": they will do a damn to reveal their mechanisms, after all they do this for a living, there's no reason to make it easier for the competitors (which so far are nowhere to see)... |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|