Medieninhaltschutz mit öffentlicher Schlüsselkrypthographie

摘要

A system and method for providing protection of content stored on a bulk storage media (100) is disclosed. The technique for providing protection from unauthorized utilization of the content so stored is provided publicly in order to allow for those utilizing a conforming media device to master or generate content protected according to the present invention. Various ways in which to protect content are disclosed including verification of the authenticity of a particular media, utilization of an accepted list of media play-back devices (205) and their corresponding published public keys in order to securely pass media content keys thereto, and utilization of an external contact (314) to provide media content keys and/or updates of accepted media play-back devices.