S.W.A.T. Bluray Hash(es)

[bob0r]

S.W.A.T. Bluray Hash(es)
In the keys thread:
A060DA91B326CD7A6DBF318D06EA89901AF83DA8=S.W.A.T. |00/00/00|CD2EA76C6FAC27971C937AB60E6DCD1B

I guess we can assume this is USA.

Then there is also:
A060DA91B326CD7A6DBF318D06EA89901AF83DA8=S.W.A.T. |00/00/00|FCDB10FD96A74464AB1D19A4F2836C4F

Which i guess we can assume is EUR.

But both have the same HASH.
So which is correct?
A060DA91B326CD7A6DBF318D06EA89901AF83DA8=S.W.A.T. EUR |00/00/00|FCDB10FD96A74464AB1D19A4F2836C4F
A060DA91B326CD7A6DBF318D06EA89901AF83DA8=S.W.A.T. USA |00/00/00|CD2EA76C6FAC27971C937AB60E6DCD1B

(The first ever bluray .iso dump has this hash: 558FDFFBF0DE2793E0CFC2CFC50881D4E55D0633)


How can one find out how many different versions (hashes) of one movie there can be?

[awhitehead]

How can one find out how many different versions (hashes) of one movie there can be?

This is a known problem - BackupBluRay picked the wrong file for unique hash, and that file is identical between disks if the disks have identical viewer restrictions and identical number of encrypted elements.

If you sort the Blu-Ray VUK database by hash, you will see many of duplicate identical hashes for different disks.

Solution have been to chance the file which is used to uniquely identify the Blu-Ray title. KenD00 and arnezami researched the issue, and decided on a solution. Please see here (http://forum.doom9.org/showthread.php?p=977907#post977907).

Solution might be educate people to consider switching to KenD00s' DumpHD instead of the original Backup Blu-Ray. Based on your VUK posts, I suspect that you might have better ability to educate the "scene" then KenD00 or arnezami can.

[bob0r]

So for DumpHD

29C62D3A113EEF35FFA560E4CA913EBCC44D8CE1=S.W.A.T. EUR |u|00/00/00| 1 - FCDB10FD96A74464AB1D19A4F2836C4F

or

29C62D3A113EEF35FFA560E4CA913EBCC44D8CE1=S.W.A.T. EUR |u|00/00/00| 1 - CD2EA76C6FAC27971C937AB60E6DCD1B

If both fail, it means there is at least a 3rd version of this movie out there?
I ask again:
How can one find out how many different version there can be of a movie, or in general?

[KenD00]

Well, because we use a 160 bit SHA-1 hash value as DiscID there are 2 ^160 possible versions of a movie you can have. 2 ^160 is approximately 1460000000000000000000000000000000000000000000000 :D.

:rolleyes:

[bob0r]

http://x264.nl/slap.gif

[awhitehead]

If you have a disc, and can't obtain the VUK by side-stepping the crypto, it's not feasable to brute-force it.

If you have the VUK for one (or more) versions of the disk, you should try decrypting individual files using various VUKs. It was mentioned that in case of blu-ray some mpeg2 transport streams might require full decryption before they will play back. So this takes an hour or two.

In practical terms, BD has 3 regions, so one would think that there can be at least three different versions of a disk. In reality on the HD-DVD side, North America, Japan, Northern Europe (UK, France, Germany), Spain and Portugal, and Australia all did have their own pressings of some disks at some point. So figure at worst there can be a dozen different versions of a disk?

[QuePaso]

It was mentioned that in case of blu-ray some mpeg2 transport streams might require full decryption before they will play back. So this takes an hour or two.


Using BackupBluRay, i am able to decrypt an entire BD25 movie in under 25 minutes. What program takes hours?

[KenD00]

So figure at worst there can be a dozen different versions of a disk?

If i remember the AACS LA correct than disc replicators are allowed to use a MKB for only three months. So if the production of three months is sould out you can expect, regarding the current decryption abilities ;), that although your movie is from the same region it will use another key. Sooner or later all current available keys won't work anymore for recently bought movies, the number of keys per disc will constantly increase, until the AACS people decide to give up :D. Or there is no disc space left for the movie because of revocation lists :D. Keep on hacking :devil:!

:rolleyes:

[bob0r]

Hmm so i guess there are different EUR versions also:

GER and FR and maybe general EUR

My movie is:
Audio : 5.1 FR/US
Subs : En,Sp,Fr,Pr,Ch,Kor,Th


I am a collector of "first dumps" and "first hardware releases"

I have the first ever developed working Philips CD Player, and it is still working.
I have the first dumped and decrypted HD-DVD.... many of us have the first ever dumped BLURAY movie (swat), but it is still encrypted....... thats why i am trying so hard to get it working :D

Guess i need to beg some frency for some help :devil:

Thanks for the info!

[awhitehead]

My movie is:
Audio : 5.1 FR/US
Subs : En,Sp,Fr,Pr,Ch,Kor,Th


Audio being English and French can imply North America too. I believe that the saying is that "My Canada includes Quebec".

As for first gen stuff collecting....

From my experience, it is true that generally, in effort to cut costs on the bill of materials, etc, with newer hardware releases manufacturers are more interested in cheaper costs (in order to drive adoption), as opposed to reliability (that they need to convince the public that the device is viable and functional). Of course some of the first Blu-Ray transfers use MPEG2, and might look sub-optimal (I am thinking of Fifth Element).