检索结果-内蒙古大学图书馆

2022 International Conference on Algorithms, Microchips and Network Applications

作者： Ma, Qican Wu, Zehui Wang, Xinlei Wei, Qiang State Key Laboratory of Mathematical Engineering and Advanced Computing Information Engineering University Zhengzhou450001 China

ISBN: (纸本)9781510653290

Attackers can exploit vulnerabilities in web applications to commit malicious acts such as corrupting application functionality and Trojan horse implantation. For injection vulnerabilities in Web applications, existing methods are limited by the variety of programming languages and the difficulty in extracting semantic information to detect complex vulnerabilities. The paper proposes a pattern matching-based method for identifying injection vulnerabilities in Web applications, which transforms vulnerability identification into path matching in graphical databases by modifying the code property graph to enable it to handle more complex inter-functional relationships in Web applications. In this paper, we designed and implemented a prototype system, VulnFinder. By collecting 100 randomly selected Github high star open-source projects as the dataset for performance testing, we found 262 real vulnerabilities and conducted comparison experiments with static scanning tools RIPS and Cobra, VulnFinder far exceeded the comparison tools in terms of vulnerability determination accuracy, and in terms of the dataset VulnFinder was 94% accurate in determining vulnerabilities in the dataset. In scanning large projects, VulnFinder was approximately 21% more efficient than the comparable methodology tool RIPS. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

关键词： Pattern matching

来源：评论

学校读者我要写书评

暂无评论

Reducing DRAM refreshing in an error correction manner

引用

Science China Chemistry 2015年第12期58卷 186-199页

作者： ZHU DanFeng WANG Rui WEI YanJiang QIAN DePei School of Computer Science and Engineering Beihang University State Key Laboratory of Mathematical Engineering and Advanced Computing

Dynamic random access memory(DRAM) is facing the challenge of technology scaling. The decreasing feature size makes it harder to make DRAM cells which can keep the current data-holding time. When DRAM cells cannot hold data for a long time, DRAM chips need a more frequent refreshing operation. Therefore, in the near future, time and energy cost on DRAM refreshing will be no longer trivial. In this paper, we propose DRAM Error Correction Pointer(ECP), an error-correction-manner framework, to reduce DRAM refreshes without data loss. We exploit the non-uniform feature of DRAM cells with respect to the data retention time. Compared with the conventional refreshing mechanisms, which refresh DRAM chips by the retention time of the leakiest cells, we refresh the chips much fewer times, and treat the not-in-time refreshed cells as fault elements. We use the structure of ECP as a fault tolerant element. By recording the data which are supposed to be written into the leaky cells in our DRAM-ECP structures, DRAM-ECP can significantly decrease refreshing frequency. When these data are to be read out, DRAM-ECP retrieves the data stored in ECPs and covers them to the corresponding position in the data row. Our experiments show that DRAM-ECP can reduce over 70%refreshing operations than the current refreshing mechanism and also get significant energy saving.

关键词： DRAM refreshing error correction DRAM-ECP counting bloom filter retention time

来源：评论

学校读者我要写书评

暂无评论

New strategy for searching disturbance vector of SHA-1 collision attack

引用

Science China(Information Sciences) 2017年第12期60卷 280-282页

作者： Hao FENG Guang ZENG Wenbao HAN Yang YANG State Key Laboratory of Mathematical Engineering and Advanced Computing Centrum Wiskunde & Informatica Amsterdam 1098 XG Zhengzhou Information Science and Technology Institute Trusted Computing and Information Assurance Laboratory Institute of SoftwareChinese Academy of Sciences

Dear editor,We present a new algorithm to search for effective disturbance vectors with a complexity of 2;based on the following two properties of disturbance *** property is the weight correlation between the first 16-step disturbance vectors and the60-step disturbance *** other property requires all the differences of the active bit positions of the first 16-step disturbance vectors to be

关键词： New strategy for searching disturbance vector of SHA-1 collision attack

来源：评论

学校读者我要写书评

暂无评论

A Selection Strategy for Network Security Defense Based on a Time Game Model

A Selection Strategy for Network Security Defense Based on a...

引用

2021 International Conference on Digital Society and Intelligent Systems, DSInS 2021

作者： Sun, Pengyu Zhang, Hengwei Ma, Junqiang Li, Chenwei Mi, Yan Wang, Jindong Key Laboratory of Information Security of Henan Provincial State Key Laboratory of Mathematical Engineering and Advanced Computing Zhengzhou China

ISBN: (纸本)9781665406307

Current network assessment models often ignore the impact of attack-defense timing on network security, making it difficult to characterize the dynamic game of attack-defense effectively. To effectively manage the network security risks and reduce potential losses, in this article, we propose a selection strategy for network defense based on a time game model. By analyzing the attack-defense status by analogy with the SIR infectious disease model, construction of an optimal defense strategy model based on time game, and calculation of the Nash equilibrium of the the attacker and the defender under different strategies, we can determine an optimal defense strategy. With the Matlab simulation, this strategy is verified to be effective. © 2021 IEEE.

关键词： Network security

来源：评论

学校读者我要写书评

暂无评论

Timing Strategy for Active Detection of APT Attack Based on FlipIt Model and Q-learning Method

Timing Strategy for Active Detection of APT Attack Based on ...

引用

2021 International Conference on Digital Society and Intelligent Systems, DSInS 2021

作者： Liu, Zhilin Zhang, Hengwei Sun, Pengyu Mi, Yan Zhang, Xiaoning Wang, Jindong Key Laboratory of Information Security of Henan Provincial State Key Laboratory of Mathematical Engineering and Advanced Computing Zhengzhou China

ISBN: (纸本)9781665406307

At present, APT attack detection mainly focuses on the specific realization of detection technology, and there is little research on the timing strategy for active detection of APT attack. This paper focuses on the problem of APT dynamic detection with timing decision intelligence. We use the FlipIt game model and reinforcement learning method of Q-learning algorithm, consider the APT attack events as an exponentially distributed random process, and the defender using the attacker's last move time (LM-defender) to learn his optimal timing strategy using Q-Learning algorithm. The defender's reinforcement learning mechanism for the timing of the APT attack action and outputs its timing selection strategy. Simulation experiments show that compared with the existing greedy algorithm, the timing strategy based on the Q-Learning algorithm does not require the attacker's prior information under the premise, it can achieve a higher average benefit than the greedy strategy. This result provides a theoretical reference for the design of timing strategy to defend APT attack intelligently and efficient. © 2021 IEEE.

关键词： Reinforcement learning

来源：评论

学校读者我要写书评

暂无评论

VFDETECT: A Vulnerable Code Clone Detection System Based on Vulnerability Fingerprint 3

VFDETECT: A Vulnerable Code Clone Detection System Based on ...

引用

2017 IEEE 第3届信息技术与机电一体化工程国际学术会议(ITOEC 2017)

作者： Zhen Liu Qiang Wei Yan Cao State Key Laboratory of Mathematical Engineering and Advanced Computing China National Digital Switching System Engineering and Technological Research Center

Vulnerable code reuse in open source software is a serious threat to software ***,the existing highefficiency methods for vulnerable code clone detection have a large number of false-nega

ISBN: (纸本)9781509053643;9781509053636

Vulnerable code reuse in open source software is a serious threat to software ***,the existing highefficiency methods for vulnerable code clone detection have a large number of false-nega

关键词： Cloning Fingerprint recognition Feature extraction Linux Kernel Data structures

来源：评论

学校读者我要写书评

暂无评论

Network Attack Intention Recognition Based on Signaling Game Model and Netlogo Simulation

Network Attack Intention Recognition Based on Signaling Game...

引用

2021 International Conference on Digital Society and Intelligent Systems, DSInS 2021

作者： Zhang, Xiaoning Zhang, Hengwei Li, Chenwei Sun, Pengyu Liu, Zhilin Wang, Jindong State Key Laboratory of Mathematical Engineering and Advanced Computing Key Laboratory of Information Security of Henan Provincial Zhengzhou China

ISBN: (纸本)9781665406307

With the development of attack technology, identifying the real intention of network attack and avoiding further deterioration of security situation has become a hot research topic in recent years. This paper proposes an attack intention recognition method based on signaling game model. Firstly, we generate attack intention hypotheses, and then calculate the probability of each attack intention by solving game equilibrium. Experiments show that the method can effectively improve the accuracy of attack intention recognition from the perspective of the revenue. © 2021 IEEE.

关键词： Deterioration

来源：评论

学校读者我要写书评

暂无评论

Strain-induced in-plane anomalous Hall effect in single-crystalline Fe(211) films

引用

Physical Review B 2025年第17期111卷 174423-174423页

作者： Haoran Chen Yongwei Cui Tong Wu Yunzhuo Wu Ke Pei Yixuan Wang Yue Chen Hongyue Xu Renchao Che Zhe Yuan Cong Xiao Yizheng Wu Department of Physics Applied Surface Physics State Key Laboratory Fudan University Shanghai 200433 China Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative Materials Academy for Engineering and Technology Fudan University Shanghai 200438 China Institute for Nanoelectronic Devices and Quantum Computing Fudan University Shanghai 200433 China Interdisciplinary Center for Theoretical Physics and Information Science (ICTPIS) Fudan University Shanghai 200433 China Center for Advanced Quantum Studies and Department of Physics Beijing Normal University Beijing 100875 China Shanghai Research Center for Quantum Sciences Shanghai 201315 China Shanghai Key Laboratory of Metasurfaces for Light Manipulation Fudan University Shanghai 200433 China

We present a systematic investigation of the in-plane anomalous Hall effect (IPAHE) induced by the in-plane magnetization in single-crystalline Fe(211) films epitaxially grown on MgO(110) substrates. A single-crystal domain in the Fe(211) films is well controlled using slightly miscut substrates, enabling precise observation of the IPAHE. A pronounced IPAHE is observed when the magnetization aligns along the Fe[1¯11] direction, with the in-plane anomalous Hall resistivity ρIPAH reaching its maximum value and showing independence from the current direction. This behavior aligns with phenomenological models dictated by crystalline symmetry and likely stems from epitaxial strain in the films. The scaling relationship between ρIPAH and the longitudinal resistivity across a range of temperatures and film thicknesses is systematically analyzed. A nonmonotonic temperature dependence of ρIPAH indicates a complex interplay between extrinsic and intrinsic mechanisms. Our study provides experimental insight into the mechanisms underlying IPAHE and highlights the potential for tailoring IPAHE through film thickness and strain engineering.

关键词： Magnetization

来源：评论

学校读者我要写书评

暂无评论

Utilization-Aware Data Variable Allocation on NVM- Based SPM in Real-Time Embedded Systems

引用

Journal of Electronic Science and Technology 2021年第2期19卷 163-172页

作者： Jin-Yu Zhan Yi-Xin Li Wei Jiang Jun-Huan Yang School of Information and Software Engineering University of Electronic Science and Technology of ChinaChengdu 610054 State Key Lab of Mathematical Engineering and Advanced Computing Wuxi 214000

With the development of the nonvolatile memory(NVM),using NVM in the design of the cache and scratchpad memory(SPM)has been *** paper presents a data variable allocation(DVA)algorithm based on the genetic algorithm for NVM-based SPM to prolong the *** lifetime can be formulated indirectly as the write counts on each SPM *** the differences between global variables and stack variables,our optimization model has three *** constraints of the central processing unit(CPU)utilization and size are used for all variables,while no-overlay constraint is only used for stack *** satisfy the constraints of the optimization model,we use the greedy strategy to generate the initial population which can determine whether data variables are allocated to SPM and distribute them evenly on SPM ***,we use the Mälardalen worst case executive time(WCET)benchmark to evaluate our *** experimental results show that the DVA algorithm can not only obtain close-to-optimal solutions,but also prolong the lifetime by 9.17% on average compared with SRAM-based SPM.

关键词： Data variables allocation genetic algorithm nonvolatile momory(NVM) scratchpad memory(SPM)

来源：评论

学校读者我要写书评

暂无评论

Bi-population genetic algorithm-based attack path discovery research in large-scale networks 4

Bi-population genetic algorithm-based attack path discovery ...

引用

4th World Conference on computing and Communication Technologies, WCCCT 2021

作者： Tairan, Hu Wenlong, Gao Tianyang, Zhou Yichao, Zang National Key Laboratory of Mathematical Engineering and Advanced Computing Zhengzhou China

ISBN: (纸本)9780738144986

with the growth of network scale, present researches on the attack path discovery often encounter the problem of search space explosion that results in fails. To tackle the problem of attack path discovery for large-scale networks, this paper proposes a bi-population genetic algorithm for the attack path discovery in large-scale networks. Firstly, this paper represents the connective relationship between hosts as vectors and uses the Balanced Iterative Reducing and Clustering Using Hierarchies (Birch) algorithm to realize network decomposition. Then, the attack path discovery problem is encoded based on the decomposition result, and the bi-population mechanism is introduced to find the attack path. The experiment result shows that our algorithm performs better than Metric-FF and SGA in optimization and efficiency. © 2021 IEEE.

关键词： Genetic algorithms

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：