Efficient and secure conditional access system for pay-TV systems
| Autor: | Bashir Alam, Om Pal |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Finite-state machine
Computer Networks and Communications Computer science business.industry Key distribution 020207 software engineering 02 engineering and technology Conditional access Load balancing (computing) Data structure Hardware and Architecture 0202 electrical engineering electronic engineering information engineering Media Technology Digital television business Software Communication channel Computer network |
| Zdroj: | Multimedia Tools and Applications. 78:18835-18853 |
| ISSN: | 1573-7721 1380-7501 |
| Popis: | In Digital TV service, subscribers get the access of channels of their interest. In Conditional Access Systems (CAS), multimedia content is delivered securely using the Control Word (CW). To frequent update of the CW, a large number of messages are exchanged in the conventional key distribution systems. In this paper, a centralized key distribution scheme based on dynamicity of the groups and with freedom of channel package composition is proposed. Scheme has also efficient mechanism of load balancing at Group Controller (GC) side. To speed up the search of the channel package in the existing database, Optimal Binary Search Tree (OBST) data structure and Finite State Machine (FSM) are used. Scheme also provides the efficient leaving and joining mechanism for single user as well as batch users. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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