I think the anti-circumvention provisions of the DMCA are not technically copyright infringement, but sui generis prohibitions on breaking digital locks. That s

I think the anti-circumvention provisions of the DMCA are not technically copyright infringement, but sui generis prohibitions on breaking digital locks. That said, contributory copyright liability is a judge made doctrine, so it's possible one could analogize and attempt the same thing with the DMCA, but I'm not sure if anyone has done it, or if a judge would ever accept it. It would probably depend on the facts of the case at hand. (Disclaimer: I could be wrong about all of the above.)