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Ishtaria Saga

Read or post about compression. And decompression. Or ask questions how to decompress your files.
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finale00
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Ishtaria Saga

Post by finale00 » Fri Apr 18, 2014 7:41 pm

Image

closed beta Client (550 MB): http://its-patch.ngmstudio.co.kr:8024/p ... _setup.exe

I ran an archive through offzip and it found a number of matches.

However, all of the chunks were 128 KB, so presumably the game reads a bunch of chunks, decompresses them, and then concatenates it together in some order defined in the file table. Doing some manual combining it does seem to work that way, but the chunks aren't always sequential.

The file table is encrypted.

Sample: http://www.mediafire.com/download/q3kza ... sample.zip
Client: http://www.mediafire.com/download/udaw7 ... /client.7z

Ekey
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Re: Ishtaria Saga

Post by Ekey » Sat Apr 19, 2014 11:29 am

Well it's modified MoPAQ format. Tool for decrypting table in attach. Filenames is hashed. Source's included.
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Re: Ishtaria Saga

Post by finale00 » Sat Apr 19, 2014 4:51 pm

The output file doesn't seem to have anything obvious to use. Has a bunch of

Code: Select all

00 00 00 00 00 00 00 00 FF FF FF FF
For about 64 KB and then followed by a bunch of random bytes.

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Re: Ishtaria Saga

Post by Ekey » Sat Apr 19, 2014 6:05 pm

W.I.P

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Re: Ishtaria Saga

Post by Ekey » Sun Apr 20, 2014 10:33 pm


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