If you’ve ever tried to run a 3DS game on the , you’ve likely run into the dreaded "Your ROM is encrypted" error. To fix this, you need a specific file: aes_keys.txt .
For users who prefer a —carrying their entire library and emulator on a USB drive or a cloud folder—managing these keys correctly is the difference between a seamless gaming experience and a screen full of errors. What is the aes_keys.txt File?
What (Windows, Linux, Android) are you using? Are you trying to load a .3ds or a .cia file? Share public link
Once you have enabled portable mode by creating the user folder, you must place your keys in the correct subdirectory. Step-by-Step Installation Path Open your main folder. Navigate to the user folder you created.
One of the key aspects of configuring Citra, especially for portable use (e.g., running it from a USB drive), involves setting up the emulator correctly and ensuring that it can run smoothly on different hardware.
A "portable" version of a program is one that keeps all its settings and data within its own folder, rather than being scattered across your system. This makes it perfect for placing on a USB drive or syncing with cloud storage like OneDrive.
According to official emulation guidelines, . The best and legal method to obtain these keys is to dump them from your own Nintendo 3DS console using homebrew software like GodMode9 .
Create a new folder on your computer or USB drive (e.g., named Citra Portable ) and extract the emulator files into it.
Ensure your aes_keys.txt includes the newer SeedDB keys, which are mandatory for games released later in the 3DS lifecycle. Citra Ignores the Portable Directory
These are raw dumps straight from a cartridge or system. Citra must have access to aes_keys.txt to boot them. How to Set Up aes_keys.txt in Citra
A database of unique titles keys required for newer 3DS games.