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minmode, posted Sat Apr 14, 2018 6:43 pm (34050)

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Hopefully someone could take a look at the encryption in this game, every file besides audio is encrypted and have the header MZNC.
I've included some sample files and the eboot, thanks for any help.

https://mega.nz/#!VPRUnTZB!Ib-YZz3gDXlhWx05qW4biPlR6b-Jxqqzc7p8gxIId_s

aluigi, posted Sat Apr 21, 2018 9:41 am (34180)

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I bet there is some implementation of the Mersenne Twister involved due to the following constants:
5489 6364136223846793005 62
But that's only part of the puzzle

id-daemon, posted Tue Jun 12, 2018 12:02 pm (35817)

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aluigi wrote:

But that's only part of the puzzle

Yes, it was only the tip of the iceberg. The guys did all the tricks to do it properly. Custom Mersenne Twister to make different unique key & IVec for each file. Separate seed for each sequence is also encrypted and so on...

But there's always a way to crack it:



Examples of polycount: