Security system for digital cinema

摘要: A system and method for secure delivery playback of content at a theater complex domain. The domain receives encrypted compressed from studio comprises least projection unit operable to render decompressed digital video content, security module removably coupled the unit. includes decompression produce content. further decryption that is unencrypted then processed by watermark rendered embedded therein. used identify uniquely which coupled, or alternatively, itself. physically locked in tamper resistant container, preferably inside onto receiver also module.