The aes_keys.txt file serves as a manual database for these keys. When Citra attempts to load an encrypted game, it looks for this file in its system folder to find the matching key needed to decrypt the software on the fly. How to Set Up Citra Aes-keys.txt
To get encrypted games working, you must place the correctly formatted file in Citra's folder. 1. Locate the Citra User Directory The location of this folder varies by operating system: Citra Aes-keys.txt
~/.var/app/org.citra_emu.citra/data/citra-emu/sysdata/ . The aes_keys