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Efficient Penetration Testing Path Planning Based on Reinforcement Learning with Episodic Memory

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Computer Modeling in Engineering & Sciences 2024年第9期140卷 2613-2634页

作者： Ziqiao Zhou Tianyang Zhou Jinghao Xu junhu zhu Henan Key Laboratory of Information Security National Engineering Technology Research Center of the Digital Switching SystemZhengzhou450000China School of Cryptographic Engineering Information Engineering UniversityZhengzhou450000China

Intelligent penetration testing is of great significance for the improvement of the security of information systems,and the critical issue is the planning of penetration test *** view of the difficulty for attackers to obtain complete network information in realistic network scenarios,Reinforcement Learning(RL)is a promising solution to discover the optimal penetration path under incomplete information about the target *** RL-based methods are challenged by the sizeable discrete action space,which leads to difficulties in the ***,most methods still rely on experts’*** address these issues,this paper proposes a penetration path planning method based on reinforcement learning with episodic ***,the penetration testing problem is formally described in terms of reinforcement *** speed up the training process without specific prior knowledge,the proposed algorithm introduces episodic memory to store experienced advantageous strategies for the first ***,the method offers an exploration strategy based on episodic memory to guide the agents in *** design makes full use of historical experience to achieve the purpose of reducing blind exploration and improving planning ***,comparison experiments are carried out with the existing RL-based *** results reveal that the proposed method has better convergence *** running time is reduced by more than 20%.

关键词： Intelligent penetration testing penetration testing path planning reinforcement learning episodic memory exploration strategy

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基于HPC的网络安全应用研究综述

信息工程大学学报 2024年第3期25卷 338-342,357页

作者：王珏朱俊虎杨铠铭信息工程大学河南郑州450001 61726部队湖北武汉430074

随着网络安全技术的发展,基于硬件的网络安全解决方案受到广泛关注和研究。近年来,使用硬件性能计数器(Hardware Performance Counter,HPC)检测恶意软件的研究不断出现,并发展到控制流完整性检测和侧信道攻击检测等领域。对基于HPC的网... 详细信息

随着网络安全技术的发展,基于硬件的网络安全解决方案受到广泛关注和研究。近年来,使用硬件性能计数器(Hardware Performance Counter,HPC)检测恶意软件的研究不断出现,并发展到控制流完整性检测和侧信道攻击检测等领域。对基于HPC的网络安全技术进行了研究总结。首先概述了现有基于HPC的网络空间安全应用相关技术方案;其次对基于HPC的网络安全应用技术方法进行了分类,总结了其特点和适用场景;最后讨论了HPC安全研究的发展趋势和仍需解决的挑战。

关键词：硬件性能计数器网络空间安全恶意软件检测控制流完整性

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工控网络安全靶场异构资源建模封装技术研究

电子技术应用 2024年第1期50卷 77-82页

作者：杜林朱俊虎白永强 32085部队北京100000 战略支援部队信息工程大学河南郑州450001

针对工控网络安全靶场的异构资源种类多、管控难的问题,采用元建模的方式对各类试验资源进行建模,分类并统一描述真实资源的功能、性能、接口、形态等属性,建立与真实资源映射的模型,实现模型复用、快速重构;分析资源的管控接口、采集... 详细信息

针对工控网络安全靶场的异构资源种类多、管控难的问题,采用元建模的方式对各类试验资源进行建模,分类并统一描述真实资源的功能、性能、接口、形态等属性,建立与真实资源映射的模型,实现模型复用、快速重构;分析资源的管控接口、采集接口和I/O接口,建立资源构件化封装规范,对各类资源进行构件化封装,为工控网络安全靶场资源的灵活配置、自动管控提供技术支撑。通过软件工具对资源建模封装的方法进行了验证。该研究的意义在于通过建模封装技术,实现对资源的可视化操作和统一管理。

关键词：工控网络安全靶场异构资源建模封装

One-to-Any Command and Control Model:Precisely Coordinated Operation on Uncooperative Controlled Nodes

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Wuhan University Journal of Natural Sciences 2015年第6期20卷 490-498页

作者： QIU Han LI Yufeng LI Heshuai zhu junhu State Key Laboratory of Mathematic Engineering and Advanced Computing National Digital Switching System Engineering and Technological Research Center

New precisely cooperative attacks, such as the coordi- nated cross plane session termination （CXPST） attack, need thou- sands upon thousands machines to attack diverse selected links simultaneously with the given rate. However, almost all command and control（C＆C） mechanisms only provide publishing one com- mand to the whole once, so-called one-to-all C＆C model, and are not productive to support CXPST-alike attacks. In this paper, we present one-to-any C＆C model on coordination among the unco- operative controlled nodes. As an instance of one-to-any C＆C model, directional command publishing （DCP） mechanism lever- aging on Kademlia is provided with a range-mapping key creating algorithm for commands to compute the publishing range and a statistically stochastic node querying scheme to obtain the com- mands immediately. With theoretical analysis and simulation, it is indicated that one-to-any C＆C model fits for precisely coordi- nated operation on uncooperative controlled nodes with least complexity, better accuracy and efficiency. Furthermore, DCP mechanism can support one-to-all command publishing at the same time. As an example of future C＆C model, studying on one-to-any C＆C model may help to promote the development of more efficient countermeasures.

关键词： one-to-any command and control(C&C) model directional command publishing(DCP) mechanism precisely cooperative attack uncooperative controlled node

A Logic-Based Safety Analysis Algorithm for Discretionary Access Control

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Wuhan University Journal of Natural Sciences 2012年第6期17卷 531-538页

作者： YAN Xuexiong WANG Qingxian zhu junhu XI Qi National Digital Switching System Engineering and Technological R&D Center Zhengzhou 450002HenanChina

For the issue of the discretionary access control（DAC） model safety analysis,a logic method is *** method takes the GD model as the classic DAC model and Prolog as the basic language to describe system states and state transfer rules.A general program based on this logic method is proposed for DAC safety analysis,but this program may never be terminal for some safety analysis *** safety analysis algorithm is achieved by simplifying the general program according to the property of the DAC model state transfer *** safety analysis algorithm is easier to understand and implement than the previous algorithms and its time complexity is O（N＋M＋T）,in which N,M,and T are the numbers of the rights with copy flag,the policies for right transferring,and the policies for right permitting,respectively.

关键词： discretionary access control(DAC) safety analysis logic state transfer

Spatiotemporal variations of ecosystem services and driving factors in the Tianchi Bogda Peak Natural Reserve of Xinjiang,China

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Journal of Arid Land 2024年第6期16卷 816-833页

作者： zhu Haiqiang WANG Jinlong TANG junhu DING Zhaolong GONG Lu Key Laboratory of Sustainable Development of Xingjiang's Historical and Cultural Tourism Xinjiang UniversityUrumqi 830046China College of Tourism Xinjiang UniversityUrumqi 830046China Ecological Postdoctoral Research Station Xinjiang UniversityUrumqi 830046China College of Ecology and Environment Xinjiang UniversityUrumqi 830017China

Nature reserves play a significant role in providing ecosystem services and are key sites for biodiversity *** Tianchi Bogda Peak Natural Reserve(TBPNR),located in Xinjiang Uygur Autonomous Region,China,is an important ecological barrier area in the temperate arid *** evaluation of its important ecosystem services is of great significance to improve the management level and ecological protection efficiency of the *** the present study,we assessed the spatiotemporal variations of four ecosystem services(including net primary productivity(NPP),water yield,soil conservation,and habitat quality)in the TBPNR from 2000 to 2020 based on the environmental and social data using the Integrated Valuation of Ecosystem Services and Trade-offs(InVEST)*** addition,the coldspot and hotspot areas of ecosystem services were identified by hotspot analysis,and the trade-off and synergistic relationships between ecosystem services were analyzed using factor analysis in a geographic *** the study period,NPP and soil conservation values in the reserve increased by 48.20%and 25.56%,respectively;conversely,water yield decreased by 16.56%,and there was no significant change in habitat ***,both NPP and habitat quality values were higher in the northern part and lower in the southern part,whereas water yield showed an opposite *** analysis revealed that NPP showed a synergistic relationship with habitat quality and soil conservation,and exhibited a trade-off relationship with water *** yield and habitat quality also had a trade-off *** and habitat quality were affected by annual average temperature and Normalized Difference Vegetation Index(NDVI),respectively,while water yield and soil conservation were more affected by digital elevation model(DEM).Therefore,attention should be paid to the spatial distribution and dynamics of trade-off and synergistic relationships between ecosystem services in future ec

关键词： net primary productivity(NPP) water yield soil conservation habitat quality Integrated Valuation of Ecosystem Services and Trade-offs(InVEST)model geographic detector Tianchi Bogda Peak Natural Reserve

Enhancing milk quality and modulating rectal microbiota of dairy goats in starch‑rich diet:the role of bile acid supplementation

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Journal of Animal Science and Biotechnology 2024年第2期15卷 862-877页

作者： Qingyan Yin Junjian Yu Jiaxiao Li Tianci Zhang Tianyu Wang Yufei zhu Jun Zhang junhu Yao College of Animal Science and Technology Northwest A&F UniversityYangling 712100ShaanxiP.R.China Key Laboratory of Livestock Biology Northwest A&F UniversityYangling 712100ShaanxiP.R.China DAYU Bioengineering(Xi’an)Industrial Development Research Institute Xi’an 710000ShaanxiP.R.China

Background Diets rich in starch have been shown to increase a risk of reducing milk fat content in dairy *** bile acids(BAs)have been used as a lipid emulsifier in monogastric and aquatic animals,their effect on ruminants is not well *** study aimed to investigate the impact of BAs supplementation on various aspects of dairy goat physiology,including milk composition,rumen fermentation,gut microbiota,and BA *** We randomly divided eighteen healthy primiparity lactating dairy goats(days in milk=100±6 d)into two groups and supplemented them with 0 or 4 g/d of BAs undergoing 5 weeks of feeding on a starch-rich *** results showed that BAs supplementation positively influenced milk yield and improved the quality of fatty acids in goat *** supplementation led to a reduction in saturated fatty acids(C16:0)and an increase in monounsaturated fatty acids(cis-9 C18:1),resulting in a healthier milk fatty acid *** observed a significant increase in plasma total bile acid concentration while the proportion of rumen short-chain fatty acids was not ***,BAs supplementation induced significant changes in the composition of the gut microbiota,favoring the enrichment of specific bacterial groups and altering the balance of microbial *** analysis revealed associations between specific bacterial groups(Bacillus and Christensenellaceae R-7 group)and BA types,suggesting a role for the gut microbiota in BA *** prediction analysis revealed notable changes in pathways associated with lipid metabolism,suggesting that BAs supplementation has the potential to modulate lipid-related *** These findings highlight the potential benefits of BAs supplementation in enhancing milk production,improving milk quality,and influencing metabolic pathways in dairy *** research is warranted to elucidate the underlying mechanisms and explore the broader implications of these findi

关键词： Bile acids Dairy goats Lipid metabolism Gut microbiota

A Process-oriented Evaluation Framework for Cyber-attacker’s Capability

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A Process-oriented Evaluation Framework for Cyber-attacker’...

2012 National Conference on Information Technology and Computer Science

作者： Luo Baofeng Zhengzhou Information Science and Technology Institute Zhengzhou,China zhu junhu Zhengzhou Information Science and Technology Institute Zhengzhou,China

Accurately and reasonably evaluating cyber-attacker’s capability can help to scientifically forecast following attacks in order to give tailor-made defense *** present,the evaluation measures of cyber-attacker’s capability are primarily based on attack effect and the related achievements are *** this paper,we begin with the study of attack process,and then divide cyber-attacker’s capability according to attack stages after analyzing each stage’s features within the cyber-attack ***,a process-oriented evaluation framework for cyber-attacker’s capability is *** the validation of an experiment,it is proved that this evaluation framework can make precise and reasonable evaluations of cyber-attackers’ capability.

关键词： cyber-attack cyber-attack process capability evaluation framework

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基于自治域协同的域间路由信誉模型

中国科学：信息科学 2021年第9期51卷 1540-1558页

作者：陈迪邱菡祝凯捷王清贤朱俊虎信息工程大学网络空间安全学院郑州450002 数学工程与先进计算国家重点实验室郑州450002 电子信息系统复杂电磁环境效应国家重点实验室洛阳471003

域间路由系统自治域间的交互缺乏可信认证,建立针对自治域行为模式的信誉模型可为域间路由管理提供约束与激励,提高整体安全水平.由于域间路由系统分布自治、局部路由信息不完整,现有信誉评价方法无法从全局视角感知自治域行为,难以准... 详细信息

域间路由系统自治域间的交互缺乏可信认证,建立针对自治域行为模式的信誉模型可为域间路由管理提供约束与激励,提高整体安全水平.由于域间路由系统分布自治、局部路由信息不完整,现有信誉评价方法无法从全局视角感知自治域行为,难以准确反映自治域可信程度及其变化.本文提出一种基于自治域协同的域间路由信誉模型.首先通过分析自治域路由行为统计特征,建立基于贝叶斯(Bayes)后验概率分析的自治域信誉量化指标,用于对目标自治域进行本地信誉评价;然后通过研究自治域属性与本地路由信息完整程度的关系,设计信誉加权聚合算法,采用多域协同方式计算目标自治域的全局信誉评价;最后设计信誉动态更新方法,以对连续恶意行为的自治域进行惩罚.基于真实安全事件的实验结果表明,该模型能够有效聚合各自治域本地信誉评价,捕捉自治域行为在不同时间阶段的细微变化,可为域间路由系统中异常路由抑制、安全事件溯源和供应商选取提供参考.

关键词：域间路由安全自治域行为信誉模型贝叶斯估计