Implementation conditional access system for pay TV based on Java card

This paper presents the implementation of the conditional access system for pay TV based on the Java card. The conditional access system (CA) is widely used to control user access to the system and protect the pay TV programs. This Java smart card is implemented for conditional access to the system and triple DES cryptography techniques. It provides functionality for security, flexibility for management and ease to expand for value-added service. The technology of the Java card is lightweight bytecode to break the smart card memory bottleneck of constrained memory resources.