Encrypted file - any ideas?

[aluigi]

oh about these files at the end I have opted for the stand-alone solution for various reasons (performances, maintainance and so on): http://aluigi.org/papers.htm#ttarchext

and take note of the following:

Code: Select all

the files are extracted exactly as they are inside the archive, indeed although some of them are just containers of common files (for example the d3dtx and font files contain dds images, and aud contain ogg streams) these containers use formats or some particular things which change from game to game and in some cases part of the raw data within them is encrypted too (like the first 0x800 bytes of the dds used in some games, don't worry it's just the same blowfish used in the rest of the archives, take a look to my code).

so I have decided to not implement an integrated extraction of the raw data located inside the meta files (like the dds inside the d3dtx files) just because the meta files are very unsteady and game-dependent so it's not possible to create a general rule quickly and easily without additional reversing and without testing over 20 games.

if someone has other ideas and wants to spend time on them (not me) feel free to contribuite :)
and if you have doubts I'm here

[aluigi]

for the series "the best solution is the simplest" I have added the -m option to the ttarchext project which does a simple scan of the beginning of each file for finding DDS and OGG signatures in both clean and encrypted mode.
from my tests this solution seems to work very well and universally (which is the most important thing) so I hope it's useful