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Research on the Construction of a Novel Cyberspace security Ecosystem

Engineering 2018年第1期4卷 47-52页

作者： Xiao-Niu Yang Wei Wang Xiao-Feng Xu Guo-Rong Pang Chun-Lei Zhang Science and Technology on Communication Information Security Control Laboratory Jiaxing Zhejiang 314033 China Science and Technology on Electro-Optical Information Security Control Laboratory Tianfin 300300 China

Given the challenges facing the cyberspace of the nation, this paper presents the tripartite theory of cyberspace, based on the status quo of cyberspace. Corresponding strategies and a research architecture are proposed for common public networks （C space）, secure classified networks （S space）, and key infras- tructure networks （K space）, based on their individual characteristics. The features and security require- ments of these networks are then discussed. Taking C space as an example, we introduce the SMCRC （which stands for ＂situation awareness, monitoring and management, cooperative defense, response and recovery, and countermeasures and traceback＂） loop for constructing a cyberspace security ecosys- tem. Following a discussion on its characteristics and information exchange, our analysis focuses on the critical technologies of the SMCRC loop. To obtain more insight into national cyberspace security, special attention should be paid to global sensing and precise mapping, continuous detection and active manage- ment, cross-domain cooperation and systematic defense, autonomous response and rapid processing, and accurate traceback and countermeasure deterrence.

关键词： Cyberspace security ecosystem SMCRC loop Tripartite theory of cyberspace

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Analysis of Attack Effectiveness Evaluation of AD hoc Networks based on Rough Set Theory 17

Analysis of Attack Effectiveness Evaluation of AD hoc Networ...

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17th International Conference on Computational Intelligence and security, CIS 2021

作者： Dai, Jiahao Chen, Yongqun China Electronic Corporation NO.36 Institute Science and Technology on Communication Information Security Control Laboratory Jiaxing China

ISBN: (纸本)9781665494892

This paper mainly studies an attack effectiveness evaluation method for AD hoc networks based on rough set theory. Firstly, we use OPNET to build AD hoc network simulation scenario, design and develop attack module, and obtain network performance parameters before and after the attack. Then the rough set theory is used to evaluate the attack effectiveness. The results show that this method can effectively evaluate the performance of AD hoc networks before and after attacks. © 2021 IEEE.

关键词： Rough set theory

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An analysis of network traffic identification based on decision tree 2

An analysis of network traffic identification based on decis...

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2nd International Conference on Artificial Intelligence and Electromechanical Automation, AIEA 2021

作者： Dai, Jiahao Chen, Yongqun Chen, Yucheng Meng, Aodong China Electronic Corporation NO.36 Institute Science and Technology on Communication Information Security Control Laboratory Jiaxing China

ISBN: (纸本)9781665432658

With the strong development momentum of the Internet, network not only brings convenience to our life, but also poses threats to our network security. Users can hide their IP and identity information through encryption algorithm, and carry out various illegal activities and transactions in the network. Therefore, it will be of great value to identify special traffic which impact on network security and exploring abnormal situations in the network. Special traffic is important to the security of the network space. In this paper, we establish a decision tree model based on C4.5 and random forest to compare the accuracy of the two decision tree algorithms in traffic classification. Experimental results show that these two methods can identify traffic effectively. © 2021 IEEE.

关键词： Decision trees

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An Optimized Method of Packet Loss Rate under Backup Path Protection in OBS Network 3

An Optimized Method of Packet Loss Rate under Backup Path Pr...

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2020 3rd International Conference on Modeling, Simulation and Optimization Technologies and Applications, MSOTA 2020

作者： Meng, Aodong Chen, Yucheng Dai, Jiahao Chen, Yongqun Science and Technology on Communication Information Security Control Laboratory Jiaxing China No.36 Research Institute of Cetc Jiaxing China

In order to calculate the packet loss rate in OBS network, this paper proposes a method, which performs good in both accuracy and rapidity, based on Erlang B formula to estimate the packet loss probability in OBS network using backup path protection mechanism. This method can be used to optimize the design of OBS network protocol, and it also provides an accurate and efficient approximate calculation method of packet loss rate in OBS network and can be conductive to the study of using copy transmission to enhance the network survivability. Based on the formula of Erlang B, this paper briefly introduces the derivation process and principle of this method. The basic experimental principles of simulation and estimation processes are designed in this paper, and the experimental results of the proposed method under a typical network topology (ARPA network) with no protection mechanism and 1 and 2 backup paths protection mechanisms are analyzed to verify its rapidity and accuracy. The results of experiments show the accuracy and efficiency of this method. © Published under licence by IOP Publishing Ltd.

关键词： Network topology

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Geometric Dilution of Precision for Far-Distance TDOA Location of Shortwave 2

Geometric Dilution of Precision for Far-Distance TDOA Locati...

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2nd information communication Technologies Conference, ICTC 2021

作者： Yang, Xin Ye, Yun-Xia No.36 Research Institute of Cetc Jiaxing Zhejiang China No.36 Research Institute of Cetc Science and Technology on Communication Information Security Control Laboratory Jiaxing Zhejiang China

ISBN: (纸本)9780738142876

A method of time difference of arrival (TDOA) location for shortwave signal source by four receiving stations is introduced. The precision of time difference and the Geometric Dilution of Precision (GDOP) of TDOA location are analyzed and simulated. The results show that TDOA estimation performance is positively correlated with signal bandwidth, signal cumulative time and signal-to-noise ratio (SNR), while TDOA location precision is positively correlated with TDOA estimation precision and distance between the receiving stations. At the same time, the simulation analysis of station arrangement among multiple stations is carried out, and the results show that Y-shaped station mode gets the best location effect. © 2021 IEEE.

关键词： Time difference of arrival

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Chaos characteristics analysis about transient signals of FH radio with PLL synthesizer

Chaos characteristics analysis about transient signals of FH...

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International Conference on Multimedia and Signal Processing

作者： Song, Chunyun Science and Technology on Communication Information Security Control Laboratory Jiaxing China No.36 Research Institute of CETC Jiaxing China

ISBN: (纸本)9780769543567

Chaos characteristic analysis of the phase-locked loop (PLL) synthesizer has been made in this paper based on the phase model of it, and we conclude the state equation of this model and the condition when the system becomes chaos. Because the parameters of the PLL synthesizer will be changed when the FH radio switch the frequency, the system may turn to be chaos caused by the parameters of it meet the very condition. Some analysis about the transient signals of the frequency-hopping (FH) radio with PLL synthesizer is made in this paper. The fractal dimension of the transient signals is estimated by Cao's method, and the maximal Lyapunov exponent of these signals is positive. The unique double-ring attractor of them is also reproduced through the phase space reconstruction. All the result approve that the output of the FH radio is chaotic when the frequency changing. © 2011 IEEE.

关键词： Phase locked loops

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Traffic Analysis of a Networks based on Stochastic Geometry to Exclude Malice Flow 2

Traffic Analysis of a Networks based on Stochastic Geometry ...

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2018 2nd Annual International Conference on Cloud technology and communication Engineering, CTCE 2018

作者： Dai, Jiahao Xu, Xiaofeng Science and Technology on Communication Information Security Control Laboratory China Electronic Group Corporation No.36 Institute Zhejiang Jiaxing China

Based on stochastic geometry, this paper proposes a mathematical method to estimate the traffic in a D2D based cellular network. The purpose is to determine the normal flow of network to exclude heterogeneous Darknet flow (Tor network). Different from previous work, we assume there are two different kinds of receivers, cellular receivers and D2D receivers, each D2D receiver with its D2D trunking constitutes a D2D pair. We assume that the traffic can be generated in the transmission between a BS and a cellular receiver and that between a D2D trunking and a D2D receiver if and only if the received power is larger than a threshold and the rate in the transmission is above a specified rate. The framework is tractable and able to help us analyze how different parameters influence the network traffic. What's more, we can give the optimal scheme to achieve the maximal network traffic. At the same time, if the results calculated by this paper proposed or traditional formula is not matched, we think that the flow rate may be heterogeneous traffic, such as darknet flow(Tor). © Published under licence by IOP Publishing Ltd.

关键词： Geometry

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The identification algorithm of network key role based on behavior accumulation 10

The identification algorithm of network key role based on be...

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10th International Conference on Wireless communications, Networking and Mobile Computing, WiCOM 2014

作者： Xu, Xiaofeng Li, Xiao Science and Technology on Communication Information Security Control Laboratory Jiaxing China Chinese Electronic Technology Group Corporation No.36 Institute Jiaxing China

ISBN: (纸本)9781849198455

Role identification for network user plays a very important role in function and behaviour network analysis against criminal groups. Therefore, a network key role identification algorithm based on behaviour accumulation is proposed in the paper. Firstly, behaviour attribution of node (user) in network instance is extracted in the algorithm, description and abstraction of user behaviour by vector mode is performed, simultaneously, K mean algorithm is adopted to make clustering analysis for user behaviour;on the basis of conditions described as above, Hybrid Ant-Colony Algorithm (HBACA) is modified to search relationships between variety of grouping sets in the network instance, and identify each user role in the performing process of network instance. Simulation result shows that the algorithm can extract internal relations of communication behaviours between each network member, in order to obtain key role in a specific network instance.

关键词： Clustering algorithms

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Congestion control of Multi-layer Cellular Networks based on Modeling of Transmit Power 3

Congestion Control of Multi-layer Cellular Networks based on...

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2020 3rd International Conference on Modeling, Simulation and Optimization Technologies and Applications, MSOTA 2020

作者： Dai, Jiahao Chen, Yongqun Chen, Yucheng Meng, Aodong Science and Technology on Communication Information Security Control Laboratory China China Electronic Group Corporation NO.36 Institute Zhejiang Jiaxing China

The explosive growth of network traffic and the limited storage node resources make the existing network architecture bear great pressure, and network congestion appears in work and life from time to time. In order to ensure the timeliness and effectiveness of the network, we propose a congestion control method based on transmission power. Different from previous work, we built a multi-layer cellular network consisting of multiple macro stations, small base stations and mobile terminals. On this basis, we establish a congestion control model based on the mixed queuing model of service window and calculate the input/output rate and congestion. Finally, we use simulation to verify the effectiveness of the congestion model. The network builder can use our model to set the appropriate power of macro stations and small base stations to ensure network stability. © Published under licence by IOP Publishing Ltd.

关键词： Base stations

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A Single-Observer Passive Location Algorithm Base on Weighted Least Squares Criterion 22

A Single-Observer Passive Location Algorithm Base on Weighte...

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22nd IEEE International Conference on communication technology, ICCT 2022

作者： Bin, Jiang An'nan, Lu Mingyi, You Caiyi, Lou Yunxia, Ye Kai, Huang Binhua, Shi Communication Information Security Control Laboratory No.36 Research Institute of Cetc Jiaxing314033 China

ISBN: (纸本)9781665470674

Passive location system that locates 'silent' targets using an non-cooperative opportunistic source (also called external illuminator) is great importance in a variety of applications. To solve the problem of using a single observation station to receive a single external radiation source signal to realize the target location, the paper proposes a weighted least squares location algorithm combining direction finding and time difference information. In this algorithm, the location problem is constructed as a weighted least squares model considering the error of each measurement information, and then the grid search strategy is used to solve the model to obtain the target location. After that, the positioning error of the algorithm is theoretically analyzed, and the influence of direction finding error, measurement time difference error, observation station position error and external radiation source position error on the target positioning error is studied. Finally, the performance of the algorithm is verified by several simulation tests. © 2022 IEEE.

关键词： Direction of arrival

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