Host: The Institute of Image Electronics Engineers of Japan
In this report, we propose an encryption and authentication system using Paillier encryption for digital cinema. We suppose the system is used in a home theater and the file format of movie is PEG 2000. The proposed system can check the ID in encrypted domain using Paillier encryption which has homomorphic mapping. In addition, the framework of proposed system conform to JPEG 2000 part 8(JPSEC) and therefore the proposal system has backward compatibility. Computer simulation explains the secrecy and the authentication of the proposed system.