 begin pgp signed message hash shaNUMBER what do you mean by cd key or the like i presume that of was a typo and what do you mean by unbreakable of was a typo unbreakable would mean here that no one even previously authorised entity could use the system without paying the periodic subscription fee you need to be far more explicit about the problem which you wish to solve and about the constraints involved it could be an online system that work NUMBER offline but poll frequently an offsite server no mass production cds maybe mass personalised d l like sun jdk nothing is fixed yet we are looking at the way a software can be protected from unauthorized utilisation is the use of trusted hardware really worth it does it really make it more secure look at the dvds yannick gingras coder for obb obdurately buteonine bellwether URL begin pgp signature version gnupg vNUMBER NUMBER NUMBER gnu linux comment for info see URL idNUMBERdbqeNUMBERdrrnuvNUMBERgNUMBERdnfo qrakNUMBERnakclahtmyrugpNUMBERko dejcvjNUMBERmqfjzacgwqvo wzNUMBER cmuaNUMBERhcmzvycdNUMBERxdNUMBERq vNUMBERgNUMBER end pgp signature 