So, with the master AES key, you can decrypt the title keys, which can decrypt the partitions. This key is stored on the disc, inside of a "ticket", but it is encrypted with the master AES key (also known as the common key). Each partition has its own AES key, referred to as a "title key". The encryption is a symmetric cipher, 128-bit AES-CBC.Įach disc usually contains two or more partitions. Game discs are encrypted to avoid analysis (as you would need the key from a Wii) and signed by Nintendo to stop modifications. The rest of this page will assume you know the difference between symmetric and asymmetric cryptography.
Discs contain one "content" per partition channels usually contain several "contents" per title.
WII SAVE GAME FILE SD CARD CODE