VEC-MOTAG: Vehicular Edge Computing Based Moving Target Defense System

2021 ◽  
pp. 42-50
Author(s):  
Bingchi Zhang ◽  
Shujie Yang ◽  
Tao Zhang ◽  
Weixiao Ji ◽  
Zhongyi Ding ◽  
...  
Keyword(s):  
Edge Computing ◽  
Moving Target ◽  
Defense System ◽  
Moving Target Defense

scholarly journals Modeling and Performance Analysis of Satellite Network Moving Target Defense System with Petri Nets

2021 ◽  
Vol 13 (7) ◽  
pp. 1262
Author(s):  
Leyi Shi ◽  
Shanshan Du ◽  
Yifan Miao ◽  
Songbai Lan
Keyword(s):  
Performance Analysis ◽  
Petri Nets ◽  
Performance Optimization ◽  
Stochastic Petri Nets ◽  
Satellite Network ◽  
Moving Target ◽  
Defense System ◽  
Moving Target Defense ◽  
Active Defense ◽  
And Performance

With the development of satellite communication networks and the increase of satellite services, security problems have gradually become some of the most concerning issues. Researchers have made great efforts, including conventional safety methods such as secure transmission, anti-jamming, secure access, and especially the new generation of active defense technology represented by MTD. However, few scholars have theoretically studied the influence of active defense technique on the performance of satellite networks. Formal modeling and performance analysis have not been given sufficient attention. In this paper, we focus on the performance evaluation of satellite network moving target defense system. Firstly, two Stochastic Petri Nets (SPN) models are constructed to analyze the performance of satellite network in traditional and active defense states, respectively. Secondly, the steady-state probability of each marking in SPN models is obtained by using the isomorphism relation between SPN and Markov Chains (MC), and further key performance indicators such as average time delay, throughput, and the utilization of bandwidth are reasoned theoretically. Finally, the proposed two SPN models are simulated based on the PIPE platform. In addition, the effect of parameters on the selected performance indexes is analyzed by varying the values of different parameters. The simulation results prove the correctness of the theoretical reasoning and draw the key factors affecting the performance of satellite network, which can provide an important theoretical basis for the design and performance optimization of the satellite network moving target defense system.

scholarly journals CHAOS: An SDN-Based Moving Target Defense System

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Yuan Shi ◽  
Huanguo Zhang ◽  
Juan Wang ◽  
Feng Xiao ◽  
Jianwei Huang ◽  
...  
Keyword(s):  
Information Disclosure ◽  
Experimental Results ◽  
Moving Target ◽  
Normal Flow ◽  
Defense System ◽  
Moving Target Defense ◽  
Network Defense ◽  
Tower Structure ◽  
Attack Surface ◽  
Sdn Controller

Moving target defense (MTD) has provided a dynamic and proactive network defense to reduce or move the attack surface that is available for exploitation. However, traditional network is difficult to realize dynamic and active security defense effectively and comprehensively. Software-defined networking (SDN) points out a brand-new path for building dynamic and proactive defense system. In this paper, we propose CHAOS, an SDN-based MTD system. Utilizing the programmability and flexibility of SDN, CHAOS obfuscates the attack surface including host mutation obfuscation, ports obfuscation, and obfuscation based on decoy servers, thereby enhancing the unpredictability of the networking environment. We propose the Chaos Tower Obfuscation (CTO) method, which uses the Chaos Tower Structure (CTS) to depict the hierarchy of all the hosts in an intranet and define expected connection and unexpected connection. Moreover, we develop fast CTO algorithms to achieve a different degree of obfuscation for the hosts in each layer. We design and implement CHAOS as an application of SDN controller. Our approach makes it very easy to realize moving target defense in networks. Our experimental results show that a network protected by CHAOS is capable of decreasing the percentage of information disclosure effectively to guarantee the normal flow of traffic.

TOTP Moving Target Defense for sensitive network services

2021 ◽  
pp. 101412
Author(s):  
Vitor A. Cunha ◽  
Daniel Corujo ◽  
Joao P. Barraca ◽  
Rui L. Aguiar
Keyword(s):  
Network Services ◽  
Moving Target ◽  
Moving Target Defense
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