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DDoS attack Autonomous Detection Model Based on Multi-Strategy Integrate Zebra Optimization Algorithm

Computers, Materials & Continua 2025年第1期82卷 645-674页

作者： Chunhui Li Xiaoying Wang Qingjie Zhang Jiaye Liang Aijing Zhang School of information Engineering Institute of Disaster PreventionLangfang065201China Langfang key laboratory of network Emergency Protection and network Security Langfang065201China

Previous studies have shown that deep learning is very effective in detecting known ***,when facing unknown attacks,models such as Deep Neural networks(DNN)combined with Long Short-Term Memory(LSTM),Convolutional Neural networks(CNN)combined with LSTM,and so on are built by simple stacking,which has the problems of feature loss,low efficiency,and low ***,this paper proposes an autonomous detectionmodel for Distributed Denial of Service attacks,Multi-Scale Convolutional Neural network-Bidirectional Gated Recurrent Units-Single Headed Attention(MSCNN-BiGRU-SHA),which is based on a Multistrategy Integrated Zebra Optimization Algorithm(MI-ZOA).The model undergoes training and testing with the CICDDoS2019 dataset,and its performance is evaluated on a new GINKS2023 *** hyperparameters for Conv_filter and GRU_unit are optimized using the Multi-strategy Integrated Zebra Optimization Algorithm(MIZOA).The experimental results show that the test accuracy of the MSCNN-BiGRU-SHA model based on the MIZOA proposed in this paper is as high as 0.9971 in the CICDDoS 2019 *** evaluation accuracy of the new dataset GINKS2023 created in this paper is *** to the MSCNN-BiGRU-SHA model based on the Zebra Optimization Algorithm(ZOA),the detection accuracy on the GINKS2023 dataset has improved by 5.81%,precisionhas increasedby 1.35%,the recallhas improvedby 9%,and theF1scorehas increasedby 5.55%.Compared to the MSCNN-BiGRU-SHA models developed using Grid Search,Random Search,and Bayesian Optimization,the MSCNN-BiGRU-SHA model optimized with the MI-ZOA exhibits better performance in terms of accuracy,precision,recall,and F1 score.

关键词： Distributed denial of service attack intrusion detection deep learning zebra optimization algorithm multi-strategy integrated zebra optimization algorithm

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The Internet of Things under Federated Learning:A Review of the Latest Advances and Applications

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Computers, Materials & Continua 2025年第1期82卷 1-39页

作者： Jinlong Wang Zhenyu Liu Xingtao Yang Min Li Zhihan Lyu School of information and Control Engineering Qingdao University of TechnologyQingdao260043China Anhui Province key laboratory of Intelligent Building&Building Energy Saving Anhui Jianzhu UniversityHefei230000China Department of Game Design Uppsala UniversityUppsala75310Sweden

With the rapid development of artificial intelligence,the Internet of Things(IoT)can deploy various machine learning algorithms for network and application *** the IoT environment,many sensors and devices generatemassive data,but data security and privacy protection have become a serious *** learning(FL)can achieve many intelligent IoT applications by training models on local devices and allowing AI training on distributed IoT devices without data *** review aims to deeply explore the combination of FL and the IoT,and analyze the application of federated learning in the IoT from the aspects of security and privacy *** this paper,we first describe the potential advantages of FL and the challenges faced by current IoT systems in the fields of network burden and privacy ***,we focus on exploring and analyzing the advantages of the combination of FL on the Internet,including privacy security,attack detection,efficient communication of the IoT,and enhanced learning *** also list various application scenarios of FL on the ***,we propose several open research challenges and possible solutions.

关键词： Federated learning Internet of Things sensors machine learning privacy security

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Quantum proxy signature scheme with public verifiability

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Science China(Physics,Mechanics & Astronomy) 2011年第10期54卷 1828-1832页

作者： ZHOU JingXian ZHOU YaJian NIU XinXin YANG YiXian key laboratory of network and information attack & Defence technology of MOE Beijing University of Posts and Telecommunications Beijing 100876 China

In recent years, with the development of quantum cryptography, quantum signature has also made great achievement. However,the effectiveness of all the quantum signature schemes reported in the literature can only be verified by a designated ***, its wide applications are limited. For solving this problem, a new quantum proxy signature scheme using EPR quantumentanglement state and unitary transformation to generate proxy signature is presented. Proxy signer announces his public key whenhe generates the final signature. According to the property of unitary transformation and quantum one-way function, everyone canverify whether the signature is effective or not by the public key. So the quantum proxy signature scheme in our paper can be publicverified. The quantum key distribution and one-time pad encryption algorithm guarantee the unconditional security of this *** results show that this new scheme satisfies strong non-counterfeit and strong non-disavowal.

关键词： quantum cryptography proxy signature quantum one-way function public verifiably

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Performance analysis of sign quantized projection

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The Journal of China Universities of Posts and Telecommunications 2010年第1期17卷 62-66页

作者： YE Tian-yu NIU Xin-xin MA Zhao-feng YANG Yi-xian information Security Center State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing 100876 China key laboratory of network and information attack and defense technology of MOE Beijing University of Posts and Telecommunications Beijing 100876 China National Engineering laboratory for Disaster Backup and Recovery Beijing 100876 China

Quantized projection technology （QP） is the version of quantization index modulation （QIM） working in the projection domain. It essentially belongs to a double-sided additive embedder. In this article, the concept of sign quantized projection （SQP） is proposed, which differs from the conventional QP when working as a single-sided embedder. Theoretical analysis reveals that SQP has the same probability of miss and probability of false alarm as QP. Also, the document-to-watermark ratio （DWR） of SQP is less than its counterpart of QP by lOlg（1＋ γ） dB.

关键词： DWR QP SQP

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Fast coding in digital steganography

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The Journal of China Universities of Posts and Telecommunications 2009年第6期16卷 92-96页

作者： FU Yu ZHANG Ru MA Song-ya QU Zhi-guo information Security Center State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing 100876 China key laboratory of network and information attack and defense technology of MOE Beijing University of Posts and Telecommunications Beijing 100876 China College of Mathematics and information Science Henan University Kaifeng 475004 China

Dynamical running coding was previously proposed as a method for construction of steganographic schemes in digital *** this article,a new approach of fast coding is proposed to improve steganographic *** embedding method is discussed in two cases of constructing different generating matrix;however,the proposed method generalizes the problem to only one case by changing the construction method from the original ***,the complexity of the proposed method is less than the original ***,both theoretical analysis and experiment results show better performance in terms of distortions and alterations of the cover objects when embedding the same amount of information data bits,which proves a better resistance against steganalysis.

关键词： cover object fast coding secret message steganography

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Multi-policy threshold signature with distinguished signing authorities

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The Journal of China Universities of Posts and Telecommunications 2011年第1期18卷 113-120页

作者： WANG Feng ZHOU You-sheng GU Li-ze ZHENG Shi-hui YANG Yi-xian information Security Center State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing 100876 China key laboratory of network and information attack and Defence technology Ministry of Education Beijing University of Posts and Telecommunications Beijing 100876 China

Threshold signature plays an important role to distribute the power of a single authority in modem electronic society. In order to add functions and improve efficiency of threshold signatures, a multi-policy threshold signature scheme with distinguished signing authorities is proposed. In the scheme two groups can sign and verify each other, so the scheme is two-way signing and verifying. Moreover, the threshold values of the two groups can change with the security classification of the signing document, every discretionary signatory only signs a small part of the document instead of the whole one, so the bandwidth of data transmission for group signature construction can be reduced and the size of group signature is equivalent to that of any individual signature.

关键词： threshold signature multi-policy group verified distinguished signing authorities

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Lightweight Object Detection networks for UAV Aerial Images Based on YOLO

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Chinese Journal of Electronics 2024年第4期33卷 997-1009页

作者： Yanshan LI Jiarong WANG Kunhua ZHANG Jiawei YI Miaomiao WEI Lirong ZHENG Weixin XIE ATR National key laboratory of defense technology Shenzhen University Guangdong key laboratory of Intelligent information Processing Shenzhen University

Existing high-precision object detection algorithms for UAV(unmanned aerial vehicle) aerial images often have a large number of parameters and heavy weight, which makes it difficult to be applied to mobile *** propose three YOLO-based lightweight object detection networks for UAVs, named YOLO-L, YOLO-S, and YOLO-M, respectively. In YOLO-L, we adopt a deconvolution approach to explore suitable upsampling rules during training to improve the detection accuracy. The convolution-batch normalization-Si LU activation function(CBS)structure is replaced with Ghost CBS to reduce the number of parameters and weight, meanwhile Maxpool maximum pooling operation is proposed to replace the CBS structure to avoid generating parameters and weight. YOLO-S greatly reduces the weight of the network by directly introducing CSPGhost Neck residual structures, so that the parameters and weight are respectively decreased by about 15% at the expense of 2.4% mAP. And YOLO-M adopts the CSPGhost Neck residual structure and deconvolution to reduce parameters by 5.6% and weight by 5.7%, while m AP only by 1.8%. The results show that the three lightweight detection networks proposed in this paper have good performance in UAV aerial image object detection task.

关键词： Training YOLO Deconvolution Accuracy Object detection Autonomous aerial vehicles Feature extraction

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Lightweight Privacy-Aware Yet Accountable Secure Scheme for SM-SGCC Communications in Smart Grid

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Tsinghua Science and technology 2011年第6期16卷 640-647页

作者： Wei Ren Jun Song Yu Yang Yi Ren School of Computer Science China University of Geosciences Wuhan 430074 China Shandong Provincial key laboratory of Computer network Jinan 250014 China key laboratory of network and information attack and defense technology of Ministry of Education Beijing University of Posts and Telecommunications Beijing100876 China Department of information and Communication technology University of Agder （UiA） Grimstad Norway

Smart grid is envisioned as a critical application of cyber-physical systems and of the internet of things. In the smart grid, smart meters equipped with wireless sensors can upload meter readings （data） to smart grid control and schedule centers via the advanced metering infrastructure to improve power delivery efficiency. However, data gathered in short intervals, such as 15 minutes, will expose customers＇ detailed daily activities （for example, when they get up and when they use oven） using nonintrusive appliance load monitoring. Thus, data must be hidden to protect customers＇ privacy. However, data accountability is still required for emergency responses or to trace back suspected intrusions, even though the data is anonymous. In addition to desired security requirements, this imposes two extra tasks： Sensors in smart meters usually have resource constraints; thus, the desired security protocols have to remain lightweight in terms of computation and storage cost. Furthermore, scalability and flexibility are required since there exist vast meters. This paper presents a lightweight Privacy-aware yet Accountable Secure Scheme called PASS which guarantees privacy-aware accountability yet tackles the above challenges in the smart grid. A formal secu- rity analysis justifies that PASS can attain the security goals, while a performance analysis verifies that PASS requires few computations, and is scalable and flexible.

关键词： smart grid privacy smart meter sensor accountability

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Action Status Based Novel Relative Feature Representations for Interaction Recognition

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Chinese Journal of Electronics 2022年第1期31卷 168-180页

作者： LI Yanshan GUO Tianyu LIU Xing LUO Wenhan XIE Weixin ATR National key laboratory of defense technology Shenzhen University Guangdong key laboratory of Intelligent information Processing Shenzhen University Tencent

Skeleton-based action recognition has always been an important research topic in computer vision. Most of the researchers in this field currently pay more attention to actions performed by a single person while there is very little work dedicated to the identification of interactions between two people. However, the practical application of interaction recognition is actually more critical in our society considering that actions are often performed by multiple people. How to design an effective scheme to learn discriminative spatial and temporal representations for skeleton-based interaction recognition is still a challenging problem. Focusing on the characteristics of skeleton data for interactions, we first define the moving distance to distinguish the action status of the participants. Then some view-invariant relative features are proposed to fully represent the spatial and temporal relationship of the skeleton sequence. Further, a new coding method is proposed to obtain the novel relative feature representations. Finally, we design a three-stream CNN model to learn deep features for interaction recognition. We evaluate our method on SBU dataset, NTU RGB+D 60 dataset and NTU RGB+D 120 dataset. The experimental results also verify that our method is effective and exhibits great robustness compared with current state-of-the-art methods.

关键词： image representation relative feature representations skeleton-based interaction recognition skeleton sequence skeleton data image coding deep learning (artificial intelligence) image recognition temporal representations temporal relationship view-invariant relative features spatial relationship skeleton-based action recognition action status computer vision convolutional neural nets discriminative spatial representations image motion analysis

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An Economical Scheme for Cloning an Unknown M-Qudit Equatorial-Like State with Assistance

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Communications in Theoretical Physics 2010年第6期53卷 1067-1071页

作者：陈秀波马松雅庞博杨义先温巧燕 State key laboratory of networking and Switching technology Beijing University of Posts and Telecommunications key laboratory of network and information attack and Defence technology of MOE Beijing University of Posts and Telecommunications National Engineering laboratory for Disaster Backup and Recovery Beijing University of Posts and Telecommunications School of Mathematics and information Sciences Henan University

We propose a scheme to realize quantum cloning of an unknown M-qudit equatorial-like entangled state. The first stage of the protocol requires teleportation. After the teleportation is accomplished, the receiver can reestablish the original state. In the second stage of the protocol, with the assistance （through a single-particle projective measurement） of the preparer, the perfect copy of an original state can be produced at the site of the sender. Our scheme requires a single maximally entangled qudit pair as the quantum channel and three dits classical communication. The scheme is feasible at the expense of consuming local resources which include M - 1 ancillary qudits introduced by the receiver and additional bi-qudit operations. Moreover, we construct a sort of unitary transformations which ensure ancillary qudits are not necessarily introduced by the sender. Comparing to the previous protocols, the proposed protocol is economical due to that the cost of both quantum nonlocal resources and classical communication is lowest.

关键词： quantum assisted cloning maximal entanglement projective measurement local unitary operation

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