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A tool for decrypting and encrypting battle cats .dat files

Project description

Battle Cats Dat Decryptor

The Battle Cats Dat Decryptor (BCDD) is a tool made for decrypting, encrypting and hashing battle cats event data that is stored in the /files directory of the game data. I made this project in less than 2 hours so atm there is limited functionality but in the future I plan to be able to modify the data directly in the tool.

How To Use

Prerequisites

  • Python for running and installing the tool Run the following commands in command prompt or another terminal to install the tool - If you are not using windows you will need to use python or python3 instead of py

Installation

py -m pip install -U bcdd

If you get an error saying No module named pip then run

py -m ensurepip --upgrade

Run

py -m bcdd

Locating the .dat files

You will need a rooted android device to access the data stored in /data/data. Then you will need to download and install a root explorer such as root explorer. Then in root explorer in the root tab navigate to /data/data/jp.co.ponos.battlecats{gv}/files depending on what game version you are using:

  • en: jp.co.ponos.battlecatsen
  • kr: jp.co.ponos.battlecatskr
  • tw: jp.co.ponos.battlecatstw
  • jp: jp.co.ponos.battlecats

You need to have run the game and entered the cat base at least once to have the event data available. The .dat file names are long and correspond to the following data:

  • Sale data: 002a4b18244f32d7833fd81bc833b97f.dat : event_0
  • Gatya data: 09b1058188348630d98a08e0f731f6bd.dat : event_1
  • Daily reward data: 408f66def075926baea9466e70504a3b.dat : event_2
  • Ad control data: 523af537946b79c4f8369ed39ba78605.dat : ad

If you're interested the file name is the md5 hash of event_0, ad, event_2, etc

Once you have located the files you need to get access to them on your pc, so copy them to a place that you can access without root (e.g Documents) and connect your device to your pc, or just send them to yourself.

Decrypting Data

Now that you have the files you then need to run the tool (see above in the Run section). Then select what game version you are using. Then select the option to Decrypt a .dat file. It will then ask you to select a .dat file to decrypt and then it will ask you where you want to save the decrypted file.

Encrypting Data

Once you have finished editing the decrypted .dat data you then need to select the option to Encrypt a .dat file. It will then ask you to select a .dat file to decrypt and then it will ask you you where you want to save the encrypted file.

After encrypting you then need to get the file back onto your device and then replace the original .dat file in the game folder with the new modified one. Then you can open the game.

Interpreting event data

In the future I might add support for this directly in the tool but for now you'll need to use a text editor such as notepad++, or notepad if you want. You can then open the decrypted data in the text editor and modify what you want. You can read this guide to help you figure out what sutff means.

Install From Source

If you want the latest features and don't want to wait for a release then you can install the tool from the github directly.

  1. Download Git
  2. Run the following commands: (You may have to replace py with python or python3)
git clone https://github.com/fieryhenry/bcdd.git
py -m pip install -e bcdd/
py -m bcdd

If you want to use the tool again all you need to do is run the py -m bcdd command

Then if you want the latest changes you only need to run git pull in the downloaded bcdd folder. (use cd to change the folder)

Project details


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