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episoder, posted Sat Dec 05, 2020 1:40 pm (60913)

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it's using unity engine. i got some issues with the file compression. it clearly identifies as gzip. it's got some extra 0x0B in there tho. an OS flag as documented. the mobile version is 0x03. i removed the osflag for testing. i used offsets 16. nonetheless it only dumps the compressed chunk instead of decompressing it. when using offset 18 (after signature). it shits itself and runs out of memory. when trying deflate directly it gives me an error. i ran a custom comtype_scan2 with all offsets to use there. still... no dice.

anybody with more knowledge about compression could explain what i'm doing wrong? is the decompression modified? i'm aware klab got a github with their YAIK implementation for textures. but this one should atleast yield the raw uncompressed files as specified. mmh

screen shot



and samples ofc

wip_bbs.rar

episoder, posted Wed Dec 09, 2020 11:16 pm (61018)

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i guess nobody figured it out what's wrong? mmh. well... okay. ima have todo some of those models from scratch then. i thought i could use and deform those in there.

einherjar007, posted Thu Dec 10, 2020 4:58 am (61026)

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klab is very very sensitive to reverse engineering. As soon as the decryption method is published, they will adopt the new method. If we're smart, it should wait until the end of service is announced.

episoder, posted Thu Dec 10, 2020 11:58 pm (61043)

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i don't think this data is encrypted in any form. it's just about decompressing it. i think i may have to fiddle with some more files tho. the files seem to lack the crc and other fields to decompress this gzip data. i have a bunch more files (like a master.db file) to deal with but those seem to be really encrypted. yeh. mmh

aluigi, posted Sun May 16, 2021 12:26 pm (64081)

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Definitely encrypted btw.