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Rinaldo, posted Wed Jul 01, 2015 7:19 pm (6060)

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Ciao Luigi,
I develop editing tools for FIFA but I am in trouble to figure out the compression method used. I am able to decompress files marked as "chunkzip" into a plain text file. But now another file marked "EASF" has been introduced. Btw. I am pretty sure that the output of the "EASF" decompression must be a "chunkzip" file because, using a file of a previous version of FIFA, it is evident that the length of the decompressed "EASF" file is equal to the length of the compressed "chunkzip". Unfortunately I don't know how to get the "chunkzip" out from the "EASF".

Attached you can find the plain text file, the chunzip file and the EASF file.
Can you help me ?

Grazie,
Rinaldo

aluigi, posted Wed Jul 01, 2015 7:28 pm (6061)

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EASF is an encryption and I guess that Fifa File Explorer decrypts and extracts these files.

Rinaldo, posted Wed Jul 01, 2015 7:35 pm (6062)

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Grazie Luigi.
Unfortunately this tool does not work fine (it worked for some files of FIFA 14 but not for FIFA 15 and it crashes quite often) and the author is not available to share what he discovered. Do you have any clue about the encryption method ?

btw. I wonder if the file are attached... I can't see them.

aluigi, posted Wed Jul 01, 2015 7:58 pm (6063)

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Unfortunately I don't have information about the EASF encryption because I never worked on it and have no intention on doing it (it would mean to work on all the FIFA series... lot of work).

Regarding the attachment, probably you forgot to hit "Add the file" before Submit.

Rinaldo, posted Wed Jul 01, 2015 11:21 pm (6068)

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OK, I understand.
Btw.I attached the files if somobody is curious or wants to help.

Thanks anyway.

JohnHudeski, posted Thu Sep 10, 2015 2:36 am (7366)

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Here

Skoczek, posted Fri Jul 15, 2022 11:22 pm (72617)

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aluigi wrote:

EASF is an encryption and I guess that Fifa File Explorer decrypts and extracts these files.

Although it decrypts .ini and .lua files pretty easily, it doesn't want to decrypt files such as splash screens (in old .fsh format). The output file always contains 0 kb. Or you found a way how to force this program to make this work?