Distributed combination generator based force brute

Hi, I am working on a project that I need a simple distributed combination algorithm based force brute to generate all combinations. I am attaching the initial class diagram. The algorithm must accept: Character Set Ex.: "0123456789" or "0123abcd" or ... Minimum Length Ex.: 4 Maximum Length Ex.: 10 Actual Part Ex.: 5 (This is the part which algorithm will try 5 of 20, ignoring the rest of combinations) Total Part Ex: 20 Path for the combination list Ex.: C:\[login to view URL] Performance is a requirement!