Secure IP over Satellite DVB Using Chaotic Sequences

Satellite connections are expected to play an important role in providing Internet Protocol services as a complement of the next generation terrestrial network. DVB-S (Digital Video Broadcasting - Satellite) is one of the most widely used standards to transmit video, audio and data over satellite.This paper proposes a security system for IP over DVB-S that satisfies all the security requirements while respecting the characteristics of satellite links, such as the importance of efficient bandwidth utilization and high latency time. The usage of chaos is proposed both for the generation of new keys and for the data encryption.A theoretical analysis of the system and a simulation of FTP and HTTP traffic are presented and discussed to show the cost of the security enhancement and to provide the necessary tools for security parameters setup.