Excuse moi als het al bekend was, dan mag je deze verwijderen!
Dit heb ik van een site af:
Another feature set provided by the Games For Windows API is various functions for “protecting” data (hashing & validating). GTA IV uses these functions to hash and validate its save files. I’m not exactly sure how these functions work exactly — other than the fact that the one we are interested in, XLiveUnprotectData, is called in a peculiar way.
It’s called twice, with five arguments, none of these arguments point at the save data itself, but at the 360 byte blob at the end of the save file. I suspect that this process is actually decrypting some memory rather than hashing the save itself, the end result is that a CRC32 hash of a part of the save is extracted, then compared against. By hashing the save and providing the valid CRC32 in the result of a replaced XLiveUnprotectData we can get past this validation, allow us to load other people’s saves as well as letting us modify our saves.
For the new version of the wrapper:
* Multiplayer functionality of GTA IV is now forcefully disabled, to prevent usage of my wrapper to cheat in multiplayer. Yeah, sorry, I’m not going to encourage it.
* Protected buffers have slightly changed to better organize them, they are a single block of data rather than two now (this is only really useful if you’re writing a trainer for use with my wrapper).
* A new tool, CopyXLiveResources, is now provided to fix the invisible Games For Windows interface in-game. You do not have to use this tool if you do not want to.
* Save validation is now disabled, you can load any save. Note: This will not magically fix any form of corruption on your save files if they are corrupted.
en het komt van deze site af:
http://blog.gib.me/
Edit:
Ik heb het dus getest met een savegame van iemand anders, en ik kan je garanderen dat dit werkt!
comment_1209414Excuse moi als het al bekend was, dan mag je deze verwijderen!
Dit heb ik van een site af:
en het komt van deze site af:
Edit:
Ik heb het dus getest met een savegame van iemand anders, en ik kan je garanderen dat dit werkt!
Bewerkt: door gorgoknight