DocumentCode :
561240
Title :
Multicast security protocol over satellite DVB based on chaotic sequences
Author :
Ahmad, Kassem ; Bakhache, Bassem ; El Assad, Safwan ; Caragata, Daniel ; Chetto, Maryline
Author_Institution :
IREENA: Inst. de Rech. en Electron. et Electrotech. de Nantes Atlantiques, Ecole Polytech. de l´´Univ. de Nantes, Nantes, France
fYear :
2011
fDate :
11-14 Dec. 2011
Firstpage :
97
Lastpage :
102
Abstract :
The major problems of multicast satellite communications are the security and the scalability. The multicast protocols in digital video broadcasting via satellite (DVB-S) cause a massive load on the system resources, and create performance deterioration. In this paper, we propose a new encapsulation method derived from the unidirectional lightweight encapsulation (ULE) standard method, called enhanced ULE (EULE). The latter relies on the `spot beam´ technology and the `label-switching´ approach in order to ensure an efficient filtering and multicast forwarding. Additionally, we propose a new multicast security protocol in DVB-S which uses the EULE and provides all security services. The idea of our proposed protocol consists of using a 2-tiered architecture of independent logical key hierarchy (LKH), a satellite-layer and a terrestrial-layer. All the keys of both layers are obtained by chaotic generators. The chaos is also used to encrypt the keys and the transmitted multicast data in our system. The analysis of the proposed protocol shows that it can handle a very large multicast system securely and effectively. Simulated results reveal a low cost for data overhead and more than twofold reduction in bandwidth consumption for the key management data versus the best competitive method.
Keywords :
cryptographic protocols; digital video broadcasting; multicast protocols; satellite communication; telecommunication services; telecommunication switching; 2-tiered architecture; DVB-S; EULE; LKH; chaotic generators; chaotic sequences; data overhead; digital video broadcasting via satellite; key management data; label-switching approach; logical key hierarchy; multicast forwarding; multicast satellite communications; multicast security protocol; satellite-layer; scalability; security services; terrestrial-layer; unidirectional lightweight encapsulation standard method; Cryptography; Digital video broadcasting; Encapsulation; IP networks; Protocols; Satellites; Chaos; DVB-S; Group key Management; Logical Key Hierarchy (LKH); Security; multicast;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Internet Technology and Secured Transactions (ICITST), 2011 International Conference for
Conference_Location :
Abu Dhabi
Print_ISBN :
978-1-4577-0884-8
Type :
conf
Filename :
6148377
Link To Document :
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