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imuplus, posted Sat Apr 15, 2023 4:51 pm (76399)

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Hello everyone. I'm trying to datamine the PC version of Another Eden, and I got particularly stuck with image decryption. The mobile version has all the image assets not encrypted, but I was wondering what kind of encryption method does the PC version use. I tried running all possible algorithms in quickBMS both without and with key (using filename as a key, as I thought it could be used in AES as such) to no avail. I suppose I'd have to run a debugger to understand what the game is doing with the file, but I thought that maybe someone on this forum would know what happens here.

I'll attach the two images that supposedly are the same - one not encrypted (with a normal filename), and the other is. The one that is not encrypted has a .webp signature, and the encrypted one has a bit larger file size than the original (dunno why that is though. I was thinking that maybe they altered the images for the PC version and it's not the encryption but I'm not sure). I'd appreciate all thoughts on the matter!

P.S. Had to attach the files as .bin because they both don't have the .png signature even though originally they had that extension.

Edit: Reuploaded the images because I forgot they might not be the same after all as there was more than one image in the folder I used before, used a different one that had only one file now. The size difference is still there ( 34 bytes)

mrmemmo_, posted Tue Apr 18, 2023 1:42 pm (76447)

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Another Eden Steam AES CBC
Key: Ahg0OozaiGhoh8queegoofingaiMaoph
IV: ieTeichohch3shoo
Tool: https://cdn.discordapp.com/attachments/ ... es_dec.zip