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1000, posted Wed Nov 30, 2022 9:40 am (74399)

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I got the hca file from the binary file with vgmtool and also found the hca key in the apk, but could not decrypt it with the tool at hand. Using foobar2000 with vgmstream plugin, all I hear is noise
And there is a movie in this game, but I can't find it, which is also puzzling.
I'm struggling to decode hca because I've never had to do it before. The hca tool we used is HCADecoder.v1.21.
Can you please help me?

To explain the original file and what I found, I first looked for the key in the apk according to the theory introduced, and found the following sequence of numbers.



Next, the files in the asset directory of the main body consist of AFS2, CRID, and files with no apparent description, and are of varying sizes.



The file with the CRID description could be converted by using the CRID-umd-Decrypter and using the aforementioned key, and inside was the loading screen.
This made it extra hard to know if the key was correct.



The file without description seems to be not just a garbage file, as it shares the same red line up to the red line in the image.




This is the apk and the body files. (a folder other than the asset directory is also included, just in case)
?Added because not all were included (note that there are a few gb).

Asset directories are pre-sorted.

PS.Looks like I already had the answer...
Just prepare the .hcakey

1000, posted Thu Dec 15, 2022 1:19 am (74609)

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I found a way to extract keys using CriwareInitlizer, but the apk has no .so or .dll files to use.
Is there a way to deal with this?