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Mysticus, posted Mon Sep 14, 2020 5:51 pm (58672)

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All of the files like mp3, png and mp4 are crypted in some unknow way.
This is how it looks like.

Is there some way to uncrypt these files?
https://drive.google.com/file/d/1JJ9dXm ... KiXc8JA8FB

spiritovod, posted Mon Sep 14, 2020 7:35 pm (58676)

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https://github.com/n0k0m3/DALSP-Assets-Decryption-tool
https://github.com/respectZ/date-a-live

Basically, mp3 are simply xored with 0xC5, mp4 are also xored with one byte (every 5 files has different byte), all files has additional 4 byte header and png are not actually png, but pvr files in most cases, encrypted with something simple and also lz4 compressed. Decryption tool works more or less fine - for example, it can decrypt, but can't convert some pvr files, though they can be previewed and exported in any compatible tool.