Why do I not trust this? A bruteforcer is a program that is commonly used for 'brutally' using passwords from a file to enter a persons account. The naming doesn't do it for me.
..The DSi Common Key (Hence the title) Which is needed to dig into DSi Mode and get all those awesome Homebrews using DSi-only features.
That makes MUCH more sense now. I didn't know, I don't have a DSi, but so I may contribute to all those DSi users. I might run it.