Strengthen mix protection guide

Josh Is 25% Larger · Vehicle Drone **Joined**: 17 Apr 2013

Here are some tips on how to strengthen the protection of your MIX.

First, corrupt the body size(byte 0x06 to 0x09 I think).

Then, append random amount of junk bytes to the end of the file(thanks to Nyerguds for this info).

Restoring the body size after this is difficult. You would need to write a program that calculates it.
The great thing is that the game do not care about the body size, only XCC Mixer does.

This also stops tools like Optimus Leech from working.

(Unsure)Adding blowfish encryption should stop people from viewing the ini files.
Also, do not corrupt the number of files value!

Graion Dilach · Posted: Thu Jun 12, 2014 2:25 pm Post subject:

You can only blowfish the header, the contents are always left untouched.

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Blade · Cyborg Commando **Joined**: 23 Dec 2003

Also, will adding random data make it any harder to fix the body size? Just adjust the size you set to take into account the extra garbage data?

Nyerguds · Posted: Sun Jun 22, 2014 9:13 pm Post subject:

Blade wrote:

Also, will adding random data make it any harder to fix the body size? Just adjust the size you set to take into account the extra garbage data?

If you adjust the size in the header to take into account the extra garbage data you add, you have done nothing at all. XCC will simply read it. It's only when the two are different that it causes problems.

Honestly, this whole mix protection crap is useless in my opinion. If the game can still get all the files out, then so can people, with a bit of effort. There's nothing that mix protection breaks that isn't either useless or fixable.

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