Implementation of Security Management System in Digital Cinema System
Zhensong Wang · Jisuanji gongcheng · 2008
Blu-ray disc and HD DVD use Advanced Access Content System(AACS) to protect the media content. This paper analyzes the AACS, and finds the software decryption has many problems. It proposes Security Management System(SMS) which uses the Advanced Encryption Standard(AES) algorithm for decryption and encryption. It is implemented by hardware. It can avoid many problems which implement in software. The SMS takes some special measures to protect the AES keys which are deposited in the device.