The Trucha Signer is the latest tool to hit the Wii hacking scene, enables kids at home to "modify the contents of a Wii ISO and then re-sign it with an electronic signature the Wii will accept." So, does this mean you'll be able to play pirated games without modding your console? No, not at all.
From what we understand, whenever someone alters the code of a Wii game, the resulting product will not match its signature, and the disc will be rejected. Using an undocumented bug, Trucha Signer will resign the code of an adapted ISO (disk image for storing data on a CD-ROM), allowing you to load the disc successfully onto a modded Wii
. We're not sure yet what's possible with this new development, but we've already heard a wide range of fantasy scenarios -- downgrading firmware, copying VC games, switching regions, etc.
Already, GBAtemp forumer Mr.O has posted instructions
for "enabling gore" in Manhunt 2
(chipped Wii required). Keep in mind that Nintendo can patch this exploit at any time with a firmware update.