DoS Attacks 2010 IEEE International Conference on 20131014 102062560 卓 彥 呈 1 13 Introduction Satellite network model Network Control Center NCC Satellite Terminal ST ID: 266421
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Protecting Satellite Networks from Disassociation DoS Attacks(2010 IEEE International Conference on)
2013-10-14102062560 卓彥呈
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IntroductionSatellite network modelNetwork Control Center (NCC)Satellite Terminal (ST)Disassociation
DoS attackRabin functionVerification processAnalysis of proposed solutionProbability of successful attacks
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Satellite Network Model
NCC
Network Control Center (NCC)
Satellite Terminal (ST)
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Disassociation DoS Attack
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Disassociation DoS Attack (Cont.)Sequence numberSource MAC addressAvailable tools. ex : Spoof-MAC, MAC Changer,
AirsnarfAuthentication processTermination of the current normal data communicationConsume the system resource
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Disassociation DoS Attack (Cont.)Denial of Service Prevention in Satellite Network Communications(2004 IEEE international Conference)Check MAC value and payload of packet
Provide a lightweight security scheme to detect and prevent Disassociation DoS attacks
Encrypt / Decrypt sequence number
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Encryption on sequence number (Rabin function)Plain textEncrypted textWhere n = p * q, p and q are primes
p and q are the keys shared by NCC and ST
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Decryption on sequence numberCalculate and Calculate and using extended Euclidean algorithm
Calculate four square roots using Chinese remainder
theorem
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Effect of Rabin function
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Verification process
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AnalysisA successful disassociation DoS attack Two consecutive plain sequence numberTwo consecutive encrypted sequence number
Rabin function
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ConclusionImprove the security of the sequence numberThe larger product of two primes, the lower probability of a successful DoS attackLow consumption of computation resources
Check the sequence number instead of MAC or payload12/13Slide13
Thanks!13/13