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13th January 2007, 12:47 | #702 | Link | |
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But it should still be put into the correct field in the KEYDB.cfg file toghter with the key, title, etc. And since you need WinHex or similar to find the key, it's just as easy to use this tool to find the hash too. Only recompiling the BackupHDDVD code to report the hash will not make the process any more automated than using WinHex to show the hash. Last edited by He-Man; 13th January 2007 at 12:52. |
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13th January 2007, 12:51 | #703 | Link | |
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But what about discs, new or old, for which you've not yet obtained a volume unique key in the clear (unencrypted)? You'll need the player again. If the player is listed in your drive memory (presumably flash memory) as revoked, the player will no longer work to generate volume unique keys or even play any HD-DVD discs--even if you reinstall a fresh copy of the software on your computer. This will require you to learn how to exploit another player, hack the drive, or hack the player. |
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13th January 2007, 12:58 | #704 | Link | |
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Title keys will stay the same so will reveal where the location is on new software players. Am I right??? Last edited by zeroprobe; 13th January 2007 at 13:02. |
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13th January 2007, 13:00 | #705 | Link | |
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13th January 2007, 13:09 | #706 | Link | |
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I've been looking for a reason to learn a "modern" programming language -- having been more of an assembly and C guy in the past. I'm sure others will whiz right past me in developing new tools and features but I could add this command line volume unique key option, if there's interest. (I feel like I should contribute something--damn day job had me shut down during most of this action!) Last edited by calinb; 13th January 2007 at 13:35. |
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13th January 2007, 13:15 | #708 | Link | ||
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Okay...but I gotta get some sleep first. There are so many excellent programmers around here and this thread is moving so fast, someone will have probably beaten me to it by the time I awaken. Last edited by calinb; 13th January 2007 at 13:18. Reason: reply to hajj_3 |
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13th January 2007, 13:26 | #709 | Link | |
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Last edited by zeroprobe; 13th January 2007 at 13:39. |
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13th January 2007, 13:33 | #710 | Link | |
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So if you are going to store keys for all the extracted files anyway, you might as well just store them all in the same KEYDB.cfg file along with the title name and hash. I think a better solution would be to automate writing/updating to the KEYDB.cfg file by entering the movie title, + volume/title key value in the the a GUI for BackupHDDVD and then have it automatically calculating and writing the hash to the KEYDB.cfg along with it. Last edited by He-Man; 13th January 2007 at 13:39. |
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13th January 2007, 13:50 | #713 | Link | |
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I don't know if anyone is able to extract title/volume keys using PowerDVD. Has anyone tried to search for the keys in memory using PowerDVD? If WinDVD gets updated to be more secure it might not be possible to extract keys with this anymore either. And then it doesn't help to have the old player version still installed because it can be revoked from new movie titles without even being connected to the internet. Please correct me if I'm wrong, but that's how I understood the revocation process. Last edited by He-Man; 13th January 2007 at 13:57. |
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13th January 2007, 13:55 | #714 | Link | |
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yes, in the AACS spec. it's 100% true that every player including the software and hardware player will always decryt the title key table and then get the same result. But AACS can revoke these titles so that you won't be able to play these disks any more. But that will be a critical impact since there are already so many titles released in the filed. For those people with both software players, could you give it a little trial to see whether we can find the keys in PowerDVD's memory or not? |
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13th January 2007, 14:30 | #716 | Link | |
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In theory, this is about collecting and archiving keys. With this weakness, you could find out the keys from all HD-DVDs released within about 18 months. Then you would have to find another weakness, because newer HD-DVDs wouldn't work with the old software player. (even if it wasn't compromised) |
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13th January 2007, 14:39 | #717 | Link |
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someone already mentioned they found a title key in powerdvd. The only way they can have a good chance at stopping this is blacklisting every single hddvd released thus far.
As it stands even if they update the players, the title keys already out can be used to track down the new locations. When you know what to look for it would be easy. The only way they stop this is blacklisting the titles out now. Can you really see them doing this. |
13th January 2007, 14:46 | #718 | Link | |
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13th January 2007, 14:55 | #719 | Link |
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I'm having trouble with WinDVD... I installed the HD version, it opens, but then sits there and does nothing if I select "HD DVD source" or hit Play. Any ideas?
EDIT: never mind, fixed it. Needed to roll back my ATI drivers to 6.7. Last edited by Eeknay; 13th January 2007 at 15:50. |
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