The DMCA explicitly disallows the publication of methods or programs that allow users to circumvent copy protection, from what I recall (not a lawyer). It's not a matter of a private contract, Sony's abuses have been enshrined by IP law, and that's the problem -- the person I was replying to was complaining that we don't believe in copyright generally. I don't think that's true, we just don't believe in copyright so extensive that you are not legally allowed to publish something imprinted on a device you own (even if that is imprinted electronically, like the PS3's encryption and signing keys).
Even so, clickwrap and EULA contracts are pretty lame. If your product must be distributed where end-users are restricted from doing things, then you should create a real contract that each party takes seriously.
Even so, clickwrap and EULA contracts are pretty lame. If your product must be distributed where end-users are restricted from doing things, then you should create a real contract that each party takes seriously.