Troubleshooting and Setup: Making Your 3DS aes_keys.txt Work
Older aeskeys.txt files lack the slot0x18Key (also known as the "Malleo" key) and slot0x1B keys, which are required for newer 3DS system versions and certain ROMs (like Mario & Luigi: Superstar Saga + Bowser's Minions).
Used for decrypting system applications, system updates, and eShop content.
The file is typically placed in a specific folder on the SD card (e.g., /gm9/keys/ for GodMode9 or a bios directory for emulators). 3ds aeskeystxt work
Windows often hides file extensions by default. You might think your file is named aes_keys.txt , but it is actually named aes_keys.txt.txt . Open File Explorer. Click the View tab. Check the box for File name extensions .
If you have ever tried to emulate Nintendo 3DS games on a PC using Citra, you have likely run into an error demanding cryptographic keys. The solution to this problem is a tiny but vital file called aes_keys.txt .
Happy decrypting, and enjoy your legally backed-up 3DS library on the emulator or modded hardware of your choice. Troubleshooting and Setup: Making Your 3DS aes_keys
For Citra to read your keys, the file must be placed in a specific system folder. The exact directory depends on your operating system. Press Windows Key + R . Type %appdata% and hit Enter. Open the folder. Place aeskeys.txt directly into this root Citra folder. Open Finder. Press Command + Shift + G . Type ~/.config/citra/ and hit Enter. Paste the file here. Standard Path: ~/.config/citra/ Flatpak Path: ~/.var/app/org.citra_emu.citra/config/citra/ Correct Formatting for aeskeys.txt
Due to legal restrictions, you will never find a publicly available, pre-made aes_keys.txt file from official sources.
If the tool is an emulator, it begins executing the decrypted code to run the game. If the tool is a file converter (like GodMode9 or various command-line tools), it outputs a decrypted version of the file (such as a decrypted .CCI or .3DS file) that no longer requires keys to open. Major Use Cases Windows often hides file extensions by default
Because these keys are burned into the silicon or hidden deep within the protected bootrom of the console, standard computer operating systems cannot read 3DS game data natively. The data appears as encrypted garbage. What is aeskeys.txt?
Without these keys, software that is designed to emulate the 3DS, such as Citra, cannot read the data within a 3DS ROM file (like .3ds , .cia , or .cxi files). Therefore, if a user wants to load their own backups on a computer, this file acts as the key to unlocking that encrypted data. How Does aeskeys.txt Work?
Once finished, power off the console and insert your 3DS SD card into your PC.
Accessing or managing data files like Miis or amiibo. Troubleshooting: What to Do If It Doesn't Work