So I got a little problem with decryption a XXTEA encrypted zip file (cocos2d-lua). I do know the key and the sign but i cant get ANY XXTEA decryption to work for me.
I decompiled and debugged the game in IDA (+- Breakpoints to get the key). I do also have the decrypted *.zip file. Just need to acutally overwrite the encrypted one :/
Fibble wrote:I decompiled and debugged the game in IDA (+- Breakpoints to get the key). I do also have the decrypted *.zip file. Just need to acutally overwrite the encrypted one :/
New to Android debugging personally, do you have a specific guide/site you used to get things setup and working for this? Everything I've tried so far doesn't seem to work, and refuses to let me debug.
Yea, I can't even install apps to the emulator. Just fails/errors every time. Also, I can't install IDA's server on my actual phone either since it's not rooted.
Actually think I just noticed why. Didn't realize the default emulators AVDs are using x86. The apps I was testing with were expecting arm64-v8a or armeabi-v7a. Downloading the other system stuff and redoing the AVDs and will see if that fixes the emulator problems. Hopefully, IDA's remote server stuff will run on the emulators as well.
Tried many combos of xxtea and xtea but all the results are a failure. Quite normal since there are different settings of xxtea so can't do anything without the right parameters
aluigi wrote:Tried many combos of xxtea and xtea but all the results are a failure. Quite normal since there are different settings of xxtea so can't do anything without the right parameters
Well kinda guessed that :/ Thanks anyways for the try aluigi
Fibble wrote:I decompiled and debugged the game in IDA (+- Breakpoints to get the key). I do also have the decrypted *.zip file. Just need to acutally overwrite the encrypted one :/
can you tell me, how to did this? thank you so much
