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13th February 2007, 00:49 | #181 | Link | |
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00000000: 00 22 00 00 7f 58 3c b4 6c 30 99 e5 c8 99 44 08 Is this it? It seems the 00 22 00 00 shouldn't be part of the 16 bytes... after 99 44 08 there's a period, then it starts a new line with "0000010: xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx"
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___ Last edited by Electrox3d; 13th February 2007 at 00:52. |
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13th February 2007, 00:58 | #182 | Link | |
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What is the title of the movie? For full confirmation I probably also need the encrypted title key in the CPS unit key file. I'll try to find out where you can find that. |
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13th February 2007, 00:58 | #183 | Link | |
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Ok, in addition, I found that the three lines in the hex editor equal up to 32 characters total (minus the 00 22 00 00) and this is probably the VolumeID and MAC, wouldn't you think? 00000000: 00 22 00 00 7f 58 3c b4 6c 30 99 e5 c8 99 44 08 00000010: 07 f7 41 4b xx xx xx xx xx xx xx xx xx xx xx xx 00000020: xx xx xx xx So VolumeID is probably: 7f 58 3c b4 6c 30 99 e5 c8 99 44 08 07 f7 41 4b
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13th February 2007, 01:07 | #184 | Link | |
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And another method: a hacked device firmware can algo give you the VolumeID sans Host Private Key. |
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13th February 2007, 01:14 | #185 | Link | |
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This results in the following Volume Unique Key: Code:
9A C3 7C 74 93 F6 BA 64 A7 AE E2 D4 E8 6C 0F 8C PS. I have to go to sleep .... |
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13th February 2007, 01:20 | #186 | Link | |
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13th February 2007, 01:28 | #187 | Link | |
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243302819492872FB60BF20BCCE28531 Last edited by xyz987; 13th February 2007 at 01:42. Reason: stupid error |
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13th February 2007, 01:49 | #189 | Link |
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Do you still need this? I have PowerDVD 6 "2CH" that came with a DVD burner I bought recently. I see no mention of Blu-ray or HD-DVD on the disc; I've never actually used it (just now, to check the version, was the first time I ever even took it out of the sleeve) since VLC does the job nicely. (It wasn't an HD-DVD or Blu-ray drive, though, so I highly doubt they included software that could play those. )
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13th February 2007, 05:18 | #190 | Link | |
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Anyway. Here is an easier check (I did the reverse by doing some encrypting). If all is correct (no typos, no mistakes, exact same movie, no bus encryption etc) this should be the encrypted CPS Unit Key: Code:
81 9C CC E5 F7 FC F2 C8 F3 0F D5 59 F0 DD CA 0E Btw: anybody with this movie (Talladega Nights - US PS3 version) can check this: the unit key file is on the disc. Last edited by arnezami; 13th February 2007 at 05:25. |
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13th February 2007, 07:34 | #191 | Link | |
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Thanks. That also saves me quite some time. Regards, arnezami Last edited by arnezami; 13th February 2007 at 09:32. |
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13th February 2007, 07:48 | #192 | Link |
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For people suggesting AnyDVD do things:
1. We are not Slysoft's forum, although I know they read us. 2. I fervently hope that the work done freely and with such fervour, intellect and imagination by our members will not simply result in a commercial product being launched that takes advantage of all your good work. I truly hope that the work done here can merge into a user friendly freeware product to enable the soon to be many HD-DVD/BR users to backup their material. Regards
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13th February 2007, 09:54 | #194 | Link | |
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http://forum.doom9.org/showthread.php?t=121021 ape has also made a similar HD DVD Voulme Unique Key Finder: http://forum.doom9.org/showthread.php?t=120970 |
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13th February 2007, 17:47 | #196 | Link | |
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The media key is used with the volume ID (stored on the disk) to get the volume unique key (Kvu) After processing, this decrypted Kvu volume unique key is in the memory of WinDVD and can be grabbed by other tools developed here. It is specific to the disk. The volume unique key can be used to decrypt an encrypted title key (stored on the disk) to get the decrypted title key Kt which is now in memory of WinDVD and can also be grabbed by tools here when decrypted and being used in the memory. If we had the device key, then the disk could be read directly to obtain the final decrypted title key without any of the memory reading. Memory reading to find title key/volume unique key is subject to attack by making it more difficult to find in memory simply by updating software players, without changing any issued device keys or MKBs. Knowledge of the device key makes it easy to write a decrypting program and is only subject to revocation using the MKB changing - device key revocation process, something the AACS LA may not be really anxious to do on a regular basis. Where does the "processing key" of the title of this thread fit into this picture? Is it the same as the device key or am I missing an important piece of this puzzle and the decrypting process? Thanks for filling in any gaps/errors in my summary above. |
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13th February 2007, 18:12 | #197 | Link |
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I predict by the time they start revoking (If ever) the whole thing will have been broken wide open. Well I hope so anyhow. Everything that can be made by man can also be broken with some enginuity. The first Quantum computer was recently announced. When those start appearing on desktops the encrytion used will become moot. But it will probably be cracked before then even looking at the speed it's moving right now.
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13th February 2007, 18:46 | #199 | Link | |
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Of course, no one needs to break the encryption - finding keys they give us is good enough. It's probably harder for the AACS LA to change device keys and MKBs than it is for others to find them. Perhaps quantum computing will eventually allow the encryption to be broken, but until then, the AACS system still technically "works" and they can revoke device keys and force them to be found again. All they manage to do is piss off their customers when authorized equipment won't work and DRM free backups do. Eventually, they are bound to see the light. |
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13th February 2007, 18:59 | #200 | Link | |
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Code:
81 9C CC E5 F7 FC F2 C8 F3 0F D5 59 F0 DD CA 0E
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___ Last edited by Electrox3d; 13th February 2007 at 19:03. |
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