# Example Key 00000000000000000000000000000000 # Zelda BOTW EU Key af8d9c... (32 chars) Use code with caution. Where to Put keys.txt in Cemu
In the world of Wii U emulation, games are often encrypted for security. Cemu requires specific hexadecimal strings—known as Common Keys Title Keys cemu emulator keys.txt
This process requires a homebrewed Wii U console. By using homebrew applications like or readdlc , you can extract the system's common key and your games' title keys directly to an SD card or USB drive. Once extracted, you can copy and paste those text strings into your PC's keys.txt file. If you have already dumped your game discs
If you have already dumped your game discs to a WUD or WUX file using a tool like wudump or CDecrypt , you can often extract the key from the dump itself. Tools like (in its "legacy" mode) or CEMU’s own "File > Load" function may attempt to automatically extract and save the key to a keys.txt file when loading a game for the first time. games are often encrypted for security.