Wii Common Key !link!

Nintendo used this key as the fundamental root of security for the Wii’s software stack. While the Wii also uses console-unique keys (like the OTP key and NG private key), the Common Key is the "master lock" for encrypted system binaries and game disc data.

Encrypted with the Common Key and stored inside a "Ticket" (found on game discs or in downloaded files). wii common key

In Python (using pycryptodome ), the decryption of a title key looks like this: Nintendo used this key as the fundamental root