An Intelligent Digital Content Protection Framework between Home Network Receiver Devices

This paper presents an intelligent digital content protection framework for various digital interfaces in consumer electronics device, named universal content protection system (UCPS).The UCPS system aims at achieving three aspects. First, it is to achieve secret transmission of audiovisual content between the interfaces in valid devices. Second, it is to achieve the integrality between the related control information in the valid devices. Third, it is to maintain the integrality of the system. The proposed framework can be have been implemented as a security core which can be transplanted to the digital interfaces including the POD-Host, HDMI, DVI, USB, IEEE 1394 used in the home network receiver devices