Conditional Access Module Systems for Digital Contents Protection Based on Hybrid/Fiber/Coax CATV Networks

In this paper, we have proposed the merging of the OpenCable reference model with the smart card interface defined by ISO/IEC 7816-3 and have implemented a new Conditional Access System (CAS) using this interface along with a Personal Computer Memory Card International Association (PCMCIA) interface. In addition, we have also designed the hardware architecture of the Point-of-Deployment (POD) security module, designed with the Verilog HDL, using the above two interfaces. The designed POD security module has an embedded 32-bit Reduced Instruction Set Computer (RISC) microprocessor that manages applications, such as an MPEG-2 filter, descrambler, and Data Encryption Standard (DES). We have tested this modeled and designed system using a prototype and show satisfactory simulation results.