[PSP] Fired Up (*.drm)

Extraction and unpacking of game archives and compression, encryption, obfuscation, decoding of unknown files
rus_lol_
Posts: 18
Joined: Sun Nov 06, 2016 6:33 am

[PSP] Fired Up (*.drm)

Post by rus_lol_ »

I am trying to decrypt the game format of the game "Fired Up". I think this is encrypted. I am attaching a link to the archive with the files. Thanks.
https://www.dropbox.com/s/fkmkff1zspnqc38/firedup_files.zip?dl=0
rus_lol_
Posts: 18
Joined: Sun Nov 06, 2016 6:33 am

Re: [PSP] Fired Up (*.drm)

Post by rus_lol_ »

Via jpcsp debugger i found the decrypted main.drm file.
also on offset 0x2A zlib header. But what is this encryption algorithm?