检索结果-南通市图书馆

Robust Deep Image Watermarking:A Survey

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2024年第10期81卷 133-160页

作者： Yuanjing Luo Xichen Tan zhiping cai College of Computer National University of Defense TechnologyChangsha410005China

In the era of internet proliferation,safeguarding digital media copyright and integrity,especially for images,is *** watermarking stands out as a pivotal solution for image *** the advent of deep learning,watermarking has seen significant *** review focuses on the innovative deep watermarking approaches that employ neural networks to identify robust embedding spaces,resilient to various *** methods,characterized by a streamlined encoder-decoder architecture,have shown enhanced performance through the incorporation of novel training *** article offers an in-depth analysis of deep watermarking’s core technologies,current status,and prospective trajectories,evaluating recent scholarly contributions across diverse *** concludes with an overview of the technical hurdles and prospects,providing essential insights for ongoing and future research endeavors in digital image watermarking.

关键词： Deep image watermarking multimedia security data protection deep neural network

Developing a New Security Framework for Bluetooth Low Energy Devices

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2019年第5期59卷 457-471页

作者： Qiaoyang Zhang Zhiyao Liang zhiping cai Macao University of Science and Technology Macao National University of Defense Technology Changsha410073China

Wearable devices are becoming more popular in our daily *** are usually used to monitor health status,track fitness data,or even do medical tests,*** the wearable devices can obtain a lot of personal data,their security issues are very *** by the consideration that the current pairing mechanisms of Bluetooth Low Energy(BLE)are commonly impractical or insecure for many BLE based wearable devices nowadays,we design and implement a security framework in order to protect the communication between these *** security framework is a supplement to the Bluetooth pairing mechanisms and is compatible with all BLE based wearable *** framework is a module between the application layer and the GATT(Generic Attribute Profile)layer in the BLE architecture *** the framework starts,a client and a server can automatically and securely establish shared fresh keys following a designed protocol;the services of encrypting and decrypting messages are provided to the applications conveniently by two functions;application data are securely transmitted following another protocol using the generated *** principles are followed by the design of the framework for security *** can protect BLE based wearable devices from replay attacks,Man-in-The-Middle attacks,data tampering,and passive *** conduct experiments to show that the framework can be conveniently deployed with practical operational cost of power *** protocols in this framework have been formally verified that the designed security goals are satisfied.

关键词： Bluetooth Low Energy security privacy protocol wearable devices Internet of Things

Unsupervised Time Series Segmentation: A Survey on Recent Advances

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2024年第8期80卷 2657-2673页

作者： Chengyu Wang Xionglve Li Tongqing Zhou zhiping cai College of Computer National University of Defense TechnologyChangsha410073China

Time series segmentation has attracted more interests in recent years,which aims to segment time series into different segments,each reflects a state of the monitored *** there have been many surveys on time series segmentation,most of them focus more on change point detection(CPD)methods and overlook the advances in boundary detection(BD)and state detection(SD)*** this paper,we categorize time series segmentation methods into CPD,BD,and SD methods,with a specific focus on recent advances in BD and SD *** the scope of BD and SD,we subdivide the methods based on their underlying models/techniques and focus on the milestones that have shaped the development trajectory of each *** a conclusion,we found that:(1)Existing methods failed to provide sufficient support for online working,with only a few methods supporting online deployment;(2)Most existing methods require the specification of parameters,which hinders their ability to work adaptively;(3)Existing SD methods do not attach importance to accurate detection of boundary points in evaluation,which may lead to limitations in boundary point *** highlight the ability to working online and adaptively as important attributes of segmentation methods,the boundary detection accuracy as a neglected metrics for SD methods.

关键词： Time series segmentation time series state detection boundary detection change point detection

Multi-VMs Intrusion Detection for Cloud Security Using Dempster-shafer Theory

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2018年第11期57卷 297-306页

作者： Chak Fong Cheang Yiqin Wang zhiping cai Gen Xu Faculty of Information Technology Macao University of Science and TechnologyMacao College of Computer National University of Defense TechnologyChangsha410073China

Cloud computing provides easy and on-demand access to computing resources in a configurable *** flexibility of the cloud environment attracts more and more network services to be deployed on the cloud using groups of virtual machines(VMs),instead of being restricted on a single physical *** more and more network services are deployed on the cloud,the detection of the intrusion likes Distributed Denialof-Service(DDoS)attack becomes much more challenging than that on the traditional servers because even a single network service now is possibly provided by groups of VMs across the cloud *** this paper,we propose a cloud-based intrusion detection system(IDS)which inspects the features of data flow between neighboring VMs,analyzes the probability of being attacked on each pair of VMs and then regards it as independent evidence using Dempster-Shafer theory,and eventually combines the evidence among all pairs of VMs using the method of evidence *** the traditional IDS that focus on analyzing the entire network service externally,our proposed algorithm makes full use of the internal interactions between VMs,and the experiment proved that it can provide more accurate results than the traditional algorithm.

关键词： Intrusion detection cloud computing Dempster-Shafer theory evidence fusion

Ensuring User Privacy and Model Security via Machine Unlearning: A Review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2023年第11期77卷 2645-2656页

作者： Yonghao Tang zhiping cai Qiang Liu Tongqing Zhou Qiang Ni College of Computer National University of Defense TechnologyChangsha410073China School of Computing and Communications Lancaster UniversityEnglandB23UK

As an emerging discipline,machine learning has been widely used in artificial intelligence,education,meteorology and other *** the training of machine learning models,trainers need to use a large amount of practical data,which inevitably involves user ***,by polluting the training data,a malicious adversary can poison the model,thus compromising model *** data provider hopes that the model trainer can prove to them the confidentiality of the *** will be required to withdraw data when the trust *** the meantime,trainers hope to forget the injected data to regain security when finding crafted poisoned data after the model ***,we focus on forgetting systems,the process of which we call machine unlearning,capable of forgetting specific data entirely and *** this paper,we present the first comprehensive survey of this *** summarize and categorize existing machine unlearning methods based on their characteristics and analyze the relation between machine unlearning and relevant fields(e.g.,inference attacks and data poisoning attacks).Finally,we briefly conclude the existing research directions.

关键词： Machine learning machine unlearning privacy protection trusted data deletion

Securing Display Path for Security-Sensitive Applications on Mobile Devices

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2018年第4期55卷 17-35页

作者： Jinhua Cui Yuanyuan Zhang zhiping cai Anfeng Liu Yangyang Li College of Computer National University of Defense TechnologyChangsha 410073China SMU Labs Singapore Management UniversitySingapore 178895Singapore College of Mathematics and Informatics Fujian Normal UniversityFuzhou 350117China School of Information Science and Engineering Central South UniversityChangsha 410083China Innovation Center China Academy of Electronics and Information TechnologyBeijing 100041China

While smart devices based on ARM processor bring us a lot of convenience,they also become an attractive target of *** threat is exaggerated as commodity OSes usually have a large code base and suffer from various software ***,adversaries prefer to steal sensitive data by leaking the content of display output by a security-sensitive application.A promising solution is to exploit the hardware visualization extensions provided by modern ARM processors to construct a secure display path between the applications and the display *** this work,we present a scheme named SecDisplay for trusted display service,it protects sensitive data displayed from being stolen or tampered surreptitiously by a compromised *** TCB of SecDisplay mainly consists of a tiny hypervisor and a super light-weight rendering painter,and has only^1400 lines of *** implemented a prototype of SecDisplay and evaluated its performance *** results show that SecDisplay only incurs an average drop of 3.4%.

关键词： Mobile device secure display virtualization trusted computing base display path trust anchor

Analyzing the Structure and Connectivity ofContinent-Level Internet Topology

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2019年第6期59卷 955-964页

作者： Xionglve Li Junhua Xi zhiping cai Tao Yang Chak Fong Cheang National University of Defense Technology College of ComputerChangsha410073China Macao University of Science and Technology 999078Macao

The research and analysis of Internet topology is hot in the field of networkmeasurement, which have important applications in network security, traffic schedulingand many other fields. Most of the existing works are focused on the AS-level and routerleveltopology, but few works are about the IP-level topology. In fact, obtaining thetopology of each continent and knowing how the topologies of the continents areconnected to each other can help us understanding the Internet around the world morethoroughly. In this paper, we obtained data sets from RIPE, constructed and analyzednetwork topologies of all the continents. By analyzing the topological connectionsbetween continents, we found out that most of the junctions of inter-continent traces arelocated in a few countries.

关键词： Topology IP-level connectivity continent

Leveraging Active Decremental TTL Measuring for Flexible and Efficient NAT Identification

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2022年第3期70卷 5179-5198页

作者： Tao Yang Chengyu Wang Tongqing Zhou zhiping cai Kui Wu Bingnan Hou National University of Defense Technology Changsha410073China Department of Computer Science University of VictoriaCanada

Malicious attacks can be launched by misusing the network address translation technique as a *** mitigate such threats,network address translation identification is investigated to identify network address translation devices and detect abnormal ***,existingmethods in this field are mainly developed for relatively small-scale networks and work in an offline manner,which cannot adapt to the real-time inference requirements in high-speed network *** this paper,we propose a flexible and efficient network address translation identification scheme based on actively measuring the distance of a round trip to a target with decremental time-tolive *** basic intuition is that the incoming and outgoing traffic froma network address translation device usually experiences the different number of hops,which can be discovered by probing with dedicated time-to-live *** explore a joint effort of parallel transmission,stateless probes,and flexible measuring reuse to accommodate the efficiency of the measuring *** further accelerate statistical countingwith a new sublinear space data structure *** implement a prototype and conduct real-world deployments with 1000 volunteers in 31 Chinese provinces,which is believed to bring insight for ground truth collection in this *** onmulti-sources datasets show that our proposal can achieve as high precision and recall as 95%with a traffic handling throughput of over 106 pps.

关键词： Network address translation NAT security NAT identification active measurement

Internet Inter-Domain Path Inferring:Methods,Applications,and Future Directions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2024年第10期81卷 53-78页

作者： Xionglve Li Chengyu Wang Yifan Yang Changsheng Hou Bingnan Hou zhiping cai College of Computer National University of Defense TechnologyChangsha410000China

The global Internet is a complex network of interconnected autonomous systems(ASes).Understanding Internet inter-domain path information is crucial for understanding,managing,and improving the *** path information can also help protect user privacy and ***,due to the complicated and heterogeneous structure of the Internet,path information is not publicly *** path information is challenging due to the limited measurement probes and ***,inferring Internet inter-domain paths from the limited data is a supplementary approach to measure Internet inter-domain *** purpose of this survey is to provide an overview of techniques that have been conducted to infer Internet inter-domain paths from 2005 to 2023 and present the main lessons from these *** this end,we summarize the inter-domain path inference techniques based on the granularity of the paths,for each method,we describe the data sources,the key ideas,the advantages,and the *** help readers understand the path inference techniques,we also summarize the background techniques for path inference,such as techniques to measure the Internet,infer AS relationships,resolve aliases,and map IP addresses to ASes.A case study of the existing techniques is also presented to show the real-world applications of inter-domain path ***,we discuss the challenges and opportunities in inferring Internet inter-domain paths,the drawbacks of the state-of-the-art techniques,and the future directions.

关键词： Internet inter-domain paths path inference network measurement network modeling