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AMG, posted Sun Aug 10, 2014 1:18 pm (79)

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Hello, I was searching for a way to unpack .nefs files of Grid 2 DLCs, afaik they're encrypted but maybe I'm wrong
Already searched all around the web but found nothing, apart some cars already extracted, but not all of them, so I guess it's possible to extract these .nefs
I can provide files if needed

Cheers!
A.G.

aluigi, posted Sun Aug 10, 2014 2:12 pm (80)

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I have the game and I may look at it.
The files have an 8 bytes alignment so it's not aes.
The content at the beginning is ever different which means that the key is different for each file or the original content at the beginning is different for each file.
Maybe something related to the Microsoft Crypto API... just guessing.
I will check it when I will have some free time.

aluigi, posted Thu Aug 14, 2014 1:56 pm (154)

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I have made the script for the non-encrypted archives.
When I will figure the encryption I "hope" to add support also for the encrypted Grid 2 archives.
Anyway, one step forward