•      Digital Cinema Initiatives, LLC (DCI) 
                is the entity created by seven motion 
                picture studios:
                  - Disney, 
                  - Fox, 
                  - Metro-Goldwyn-Mayer, 
                  - Paramount Pictures, 
                  - Sony Pictures Entertainment,
                  - Universal Studios and 
                  - Warner Bros. Studios.
                                                                          DCI – rump session CR ‘05 
                                                                           DCI – rump session CR ‘05 
                                                                            Jean-Jacques Quisquater
                                                                            Jean-Jacques Quisquater
        Final specifications for Digital Cinema: July 20, 2005
            Final specifications for Digital Cinema: July 20, 2005
        See http://www.dcimovies.com/
            See http://www.dcimovies.com/
         
          
        80 pages out of 156 dedicated to security
            80 pages out of 156 dedicated to security
        Lot of protocols for the security of images, sounds, 
            Lot of protocols for the security of images, sounds, 
            subtitles, ...
            subtitles, ...
        Putting together standards (NIST, IETF, ISO, IEC, ...),
            Putting together standards (NIST, IETF, ISO, IEC, ...),
        Must protect for a long time the Hollywood 
            Must protect for a long time the Hollywood 
            production in the context of theaters,
            production in the context of theaters,
        Will change dramatically the distribution of movies
            Will change dramatically the distribution of movies
                                                                                      DCI – rump session CR ‘05 
                                                                                       DCI – rump session CR ‘05 
                                                                                       Jean-Jacques Quisquater
                                                                                        Jean-Jacques Quisquater
                                                                          DCI – rump session CR ‘05 
                                                                           DCI – rump session CR ‘05 
                                                                            Jean-Jacques Quisquater
                                                                            Jean-Jacques Quisquater
                                                                          DCI – rump session CR ‘05 
                                                                           DCI – rump session CR ‘05 
                                                                            Jean-Jacques Quisquater
                                                                            Jean-Jacques Quisquater
          Basic cryptographic components
            Encryption of images and sound: AES (128 
              bits) in CBC mode,
            Protection of keys: AES (128 bits) or triple 
              DES (112 bits),128-112 bits of entropy,
            RSA signature with SHA-256, 2048 bits, 2 or 3 
              factors (each at least 680 bits), 128 bits of 
              entropy
            X.509v3 digital certificates,
            Data integrity: HMAC-SHA1
                                                                          DCI – rump session CR ‘05 
                                                                           DCI – rump session CR ‘05 
                                                                            Jean-Jacques Quisquater
                                                                            Jean-Jacques Quisquater