Now need an external file named 'keys.txt' where the first line must be the Wii U Common Key and optionally the second line must be the Wii U Common Dev Key. Remove the Wii U Common Keys from the code. Internally it works almost the same as version 2.0b but it differs in these aspects: This is a fork of a fork made by neobrain of the abandoned CDecrypt originally made by Crediar. Small application that allows unpack (decrypt) Wii U NUS Content.