System and method for developing conditional access system under Window

Abstract

The present invention discloses a system and a method for developing conditional access systems in Windows. The system comprises an architecture unit which interacts with an intelligent card and simulates the analytic data of a tuner, a realization unit which stores information and controls a conditional access system CA, as well as an application unit which manages the messages, development process and development interface of the CA. The method comprises the following steps that: A1. message callback for receiving the messages of the conditional access system CA is pre-registered; A2. the thread and semaphore of the CA is initialized; A3. a program is selected; the data of a program mapping table and a conditional access table is transmitted to the CA for testing. The method transfers all CA development work to a PC, completes all the development debugging work of the CA on the PC, and then directly migrates codes into set-top box environment for compilation and application. Therefore, users do not need to purchase too many simulators, saving cost. Meanwhile, the method saves debugging time, shortens development cycle and simplifies debugging work.

Description

technical field [0001] The present invention relates to the integrated development of CA (Conditional Access System, also known as CAS, conditional access system) in computer, especially relates to a system and method for simulating the development environment of set-top box and realizing CA integrated development under Windows operating system. Background technique [0002] CA is an important part of the digital TV project. It is used to complete the authentication, authorization and program scrambling of system users. It solves two problems, including how to collect fees from users and how to prevent users from watching unauthorized programs. premium channels. The conditional access system is a comprehensive system that integrates a variety of advanced technologies, including: system scheduling management, network technology digital compression coding, scrambling and descrambling algorithms, encryption and decryption algorithms, multiplexer technology, modulation Demodula...

AI Technical Summary

Problems solved by technology

However, this patent only proposes a simulator including an intermediate layer, the intermediate layer includes CA modules for providing simulation functions of different CA systems, and does not give how to specifically realize the simulation functions of CA systems

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