检索结果-南通市图书馆

Analysis of Secured Cloud data storage Model for Information

Journal of Software Engineering and Applications 2024年第5期17卷 297-320页

作者： Emmanuel Nwabueze Ekwonwune Udo Chukwuebuka Chigozie Duroha Austin Ekekwe Georgina Chekwube Nwankwo Department of Computer Science Imo State University Owerri Nigeria Department of Computer Science Gregory University Abia Nigeria Department of Computer Science Anambra State University Awka Nigeria

This paper was motivated by the existing problems of Cloud data storage in Imo State University, Nigeria such as outsourced data causing the loss of data and misuse of customer information by unauthorized users or hackers, thereby making customer/client data visible and unprotected. Also, this led to enormous risk of the clients/customers due to defective equipment, bugs, faulty servers, and specious actions. The aim if this paper therefore is to analyze a secure model using Unicode Transformation Format (UTF) base 64 algorithms for storage of data in cloud securely. The methodology used was Object Orientated Hypermedia Analysis and Design Methodology (OOHADM) was adopted. Python was used to develop the security model;the role-based access control (RBAC) and multi-factor authentication (MFA) to enhance security Algorithm were integrated into the Information System developed with HTML 5, JavaScript, Cascading Style Sheet (CSS) version 3 and PHP7. This paper also discussed some of the following concepts;Development of Computing in Cloud, Characteristics of computing, Cloud deployment Model, Cloud Service Models, etc. The results showed that the proposed enhanced security model for information systems of cooperate platform handled multiple authorization and authentication menace, that only one login page will direct all login requests of the different modules to one Single Sign On Server (SSOS). This will in turn redirect users to their requested resources/module when authenticated, leveraging on the Geo-location integration for physical location validation. The emergence of this newly developed system will solve the shortcomings of the existing systems and reduce time and resources incurred while using the existing system.

关键词： Cloud data Information Model data storage Cloud Computing Security System data Encryption

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

data Secure storage Mechanism for IIoT Based on Blockchain

引用

Computers, Materials & Continua 2024年第3期78卷 4029-4048页

作者： Jin Wang Guoshu Huang R.Simon Sherratt Ding Huang Jia Ni School of Computer Science and Mathematics Fujian University of TechnologyFuzhou350118China School of Computer&Communication Engineering Changsha University of Science&TechnologyChangsha410004China School of Systems Engineering The University of ReadingReadingRG66AYUK School of Computer Nanjing University of Information Science and TechnologyNanjing210044China

With the development of Industry 4.0 and big data technology,the Industrial Internet of Things(IIoT)is hampered by inherent issues such as privacy,security,and fault tolerance,which pose certain challenges to the rapid development of *** technology has immutability,decentralization,and autonomy,which can greatly improve the inherent defects of the *** the traditional blockchain,data is stored in a Merkle *** data continues to grow,the scale of proofs used to validate it grows,threatening the efficiency,security,and reliability of blockchain-based ***,this paper first analyzes the inefficiency of the traditional blockchain structure in verifying the integrity and correctness of *** solve this problem,a new Vector Commitment(VC)structure,Partition Vector Commitment(PVC),is proposed by improving the traditional VC ***,this paper uses PVC instead of the Merkle tree to store big data generated by *** can improve the efficiency of traditional VC in the process of commitment and ***,this paper uses PVC to build a blockchain-based IIoT data security storage mechanism and carries out a comparative analysis of *** mechanism can greatly reduce communication loss and maximize the rational use of storage space,which is of great significance for maintaining the security and stability of blockchain-based IIoT.

关键词： Blockchain IIoT data storage cryptographic commitment

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Laser-modified luminescence for optical data storage

引用

Chinese Physics B 2022年第11期31卷 89-99页

作者： Xin Wei Weiwei Zhao Ting Zheng Junpeng Lü Xueyong Yuan Zhenhua Ni School of Physics and Key Laboratory of MEMS of the Ministry of Education Southeast UniversityNanjing 211189China

The yearly growing quantities of dataflow create a desired requirement for advanced data storage *** materials,which possess adjustable parameters such as intensity,emission center,lifetime,polarization,etc.,can be used to enable multi-dimensional optical data storage(ODS)with higher capacity,longer lifetime and lower energy *** storage based on luminescent materials can be easily manipulated by lasers,and has been considered as a feasible option to break through the limits of ODS *** progresses in laser-modified luminescence based ODS have been made during the past *** this review,we recapitulated recent advancements in laser-modified luminescence based ODS,focusing on the defect-related regulation,nucleation,dissociation,photoreduction,ablation,*** conclude by discussing the current challenges in laser-modified luminescence based ODS and proposing the perspectives for future development.

关键词： laser luminescence data storage

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Distributed data storage solution under sink failures in wireless sensor networks

引用

The Journal of China Universities of Posts and Telecommunications 2017年第2期24卷 72-82,102页

作者： Wang Jun Yi Qiong Wang Yue Jia Yingying Department of Communication and Information Engineering Nanjing University of Posts and Telecommunications

In challenging environment, sensory data must be stored inside the network in case of sink failures, we need to redistribute overflowing data items from the depleted storage source nodes to sensor nodes with available storage space and residual energy. We design a distributed energy efficient data storage algorithm named distributed data preservation with priority （Dzp2）. This algorithm takes both data redistribution costs and data retrieval costs into account and combines these two problems into a single problem. DZP2 can effectively realize data redistribution by using cooperative communication among sensor nodes. In order to solve the redistribution contention problem, we introduce the concept of data priority, which can avoid contention consultations between source nodes and reduce energy consumption. Finally, we verify the performance of the proposed algorithm by both theory and simulations. We demonstrate that D2p2＇s performance is close to the optimal centralized algorithm in terms of energy consumption and shows superiority in terms of data preservation time.

关键词： data storage data redistribution and retrieval redistribution contention data priority sink failures

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

DNA Computing with Water Strider Based Vector Quantization for data storage Systems

引用

Computers, Materials & Continua 2023年第3期74卷 6429-6444页

作者： A.Arokiaraj Jovith S.Rama Sree Gudikandhula Narasimha Rao K.Vijaya Kumar Woong Cho Gyanendra Prasad Joshi Sung Won Kim Department of Networking and Communications College of Engineering and TechnologySRM Institute of Science and TechnologyKattankulathur603203India Department of Computer Science Engineering Aditya Engineering CollegeSurampalemAndhra Pradesh533437India Department of Computer Science and Engineering Vignan’s Institute of Information TechnologyVisakhapatnam530049India Department of Computer Science and Engineering Vignan’s Institute of Engineering for WomenVisakhapatnam530049India Department of Software Convergence Daegu Catholic UniversityGyeongsan38430Korea Department of Computer Science and Engineering Sejong UniversitySeoul05006Korea Department of Information and Communication Engineering Yeungnam UniversityGyeongsan-siGyeongbuk-do38541Korea

The exponential growth of data necessitates an effective data storage scheme,which helps to effectively manage the large quantity of *** accomplish this,Deoxyribonucleic Acid(DNA)digital data storage process can be employed,which encodes and decodes binary data to and from synthesized strands of *** quantization(VQ)is a commonly employed scheme for image compression and the optimal codebook generation is an effective process to reach maximum compression *** article introduces a newDNAComputingwithWater StriderAlgorithm based Vector Quantization(DNAC-WSAVQ)technique for data storage *** proposed DNAC-WSAVQ technique enables encoding data using DNA computing and then compresses it for effective data ***,the DNAC-WSAVQ model initially performsDNA encoding on the input images to generate a binary encoded *** addition,aWater Strider algorithm with Linde-Buzo-Gray(WSA-LBG)model is applied for the compression process and thereby storage area can be considerably *** order to generate optimal codebook for LBG,the WSA is applied to *** performance validation of the DNAC-WSAVQ model is carried out and the results are inspected under several *** comparative study highlighted the improved outcomes of the DNAC-WSAVQ model over the existing methods.

关键词： DNA computing data storage image compression vector quantization ws algorithm space saving

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Highly reliable and efficient encoding systems for hexadecimal polypeptide-based data storage

引用

Fundamental Research 2023年第2期3卷 298-304页

作者： Yubin Ren Yi Zhang Yawei Liu Qinglin Wu Hong-Gang Hu Jingjing Li Chunhai Fan Dong Chen Kai Liu Hongjie Zhang Department of Chemistry Tsinghua UniversityBeijing 100084China State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China Institute of Process Equipment College of Energy Engineering and State Key Laboratory of Fluid Power and Mechatronic SystemsZhejiang UniversityHangzhou 310027China Institute of Translational Medicine Shanghai UniversityShanghai 200444China Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineeringand Institute of Molecular MedicineRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200240China

Polypeptides consisting of amino acid(AA)sequences are suitable for high-density information ***,the lack of suitable encoding systems,which accommodate the characteristics of polypeptide synthesis,storage and sequencing,impedes the application of polypeptides for large-scale digital data *** address this,two reliable and highly efficient encoding systems,***-Arithmetic-Base64-Shuffle-RS(RABSR)and RaptorQArithmetic-Huffman-Rotary-Shuffle-RS(RAHRSR)systems,are developed for polypeptide data *** two encoding systems realized the advantages of compressing data,correcting errors of AA chain loss,correcting errors within AA chains,eliminating homopolymers,and pseudo-randomized *** coding efficiency without arithmetic compression and error correction of audios,pictures and texts by the RABSR system was 3.20,3.12 and 3.53 Bits/AA,*** that using the RAHRSR system reached 4.89,4.80 and 6.84 Bits/AA,*** implemented with redundancy for error correction and arithmetic compression to reduce redundancy,the coding efficiency of audios,pictures and texts by the RABSR system was 4.43,4.36 and 5.22 Bits/AA,*** efficiency further increased to 7.24,7.11 and 9.82 Bits/AA by the RAHRSR system,***,the developed hexadecimal polypeptide-based systems may provide a new scenario for highly reliable and highly efficient data storage.

关键词： Biomaterial Polypeptide data storage Hexadecimal Encoding system

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Segmented cylindrical vector beams for massively-encoded optical data storage

引用

Science Bulletin 2020年第24期65卷 2072-2079,M0005页

作者： Mingcong Xian Yi Xu Xu Ouyang Yaoyu Cao Sheng Lan Xiangping Li Department of Electronic Engineering College of Information Science and TechnologyJinan UniversityGuangzhou 510632China Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications Institute of Photonics TechnologyJinan UniversityGuangzhou 510632China School of Information and Optoelectronic Science and Engineering South China Normal UniversityGuangzhou 510006China

The possibility to achieve unprecedented multiplexing of light-matter interaction in nanoscale is of virtue importance from both fundamental science and practical application points of view. Cylindrical vector beams(CVBs) manifested as polarization vortices represent a robust and emerging degree of freedom for information multiplexing with increased capacities. Here, we propose and demonstrate massivelyencoded optical data storage(ODS) by harnessing spatially variant electric fields mediated by segmented CVBs. By tight focusing polychromatic segmented CVBs to plasmonic nanoparticle aggregates, recordhigh multiplexing channels of ODS through different combinations of polarization states and wavelengths have been experimentally demonstrated with a low error rate. Our result not only casts new perceptions for tailoring light-matter interactions utilizing structured light but also enables a new prospective for ultra-high capacity optical memory with minimalist system complexity by combining CVB’s compatibility with fiber optics.

关键词： Cylindrical vector beams Light-matter interaction Plasmonic nanostructures Optical multiplexing data storage

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Two effective approaches to reduce data storage in reverse time migration

Two effective approaches to reduce data storage in reverse t...

引用

中国科学院地质与地球物理研究所2013年度（第13届）学术年会

作者： Weijia Sun Li-Yun Fu Key Laboratory of the Earth’s Deep Interior Institute of Geology and GeophysicsChinese Academy of Sciences

Prestack reverse time migration(RTM) requires extensive data storage since it computes wavefields in forward time and accesses wavefields in reverse *** first review several successful schemes that have been proposed to reduce data storage,but require more computational *** propose two effective strategies to reduce data storage during *** first strategy is based on the Nyquist sampling theorem,which involves no extra computational *** fact is that the time sampling intervals required by numerical algorithms or given by field records is generally several times smaller than that satisfied by the Nyquist sampling ***,we can correlate the source wavefields with the receiver wavefields at the Nyquist time step,which helps decrease storage of time *** second strategy is based on a lossless compression algorithm,which is widely used in computer science and information *** compression approach reduces storage significantly at a little computational *** examples show that the two proposed strategies are effective and efficient.

关键词： Reverse time migration data storage Nyquist theorem Compression algorithm

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

data Security storage Mechanism Based on Blockchain Network

引用

Computers, Materials & Continua 2023年第3期74卷 4933-4950页

作者： Jin Wang WeiOu Wenhai Wang RSimon Sherratt Yongjun Ren Xiaofeng Yu School of Computer&Communication Engineering Changsha University of Science&TechnologyChangsha410004China School of Control Science and Engineering Zhejiang UniversityHangzhou310058China School of Systems Engineering The University of ReadingReadingRG66AYUK School of Computer Engineering Research Center of Digital Forensics of Ministry of EducationNanjing University of Information Science&TechnologyNanjing210044China School of Business Nanjing UniversityNanjing210093China

With the rapid development of information technology,the development of blockchain technology has also been deeply *** performing block verification in the blockchain network,if all transactions are verified on the chain,this will cause the accumulation of data on the chain,resulting in data storage *** the same time,the security of data is also challenged,which will put enormous pressure on the block,resulting in extremely low communication efficiency of the *** traditional blockchain system uses theMerkle Tree method to store *** verifying the integrity and correctness of the data,the amount of proof is large,and it is impossible to verify the data in batches.A large amount of data proof will greatly impact the verification efficiency,which will cause end-to-end communication delays and seriously affect the blockchain system’s stability,efficiency,and *** order to solve this problem,this paper proposes to replace the Merkle tree with polynomial commitments,which take advantage of the properties of polynomials to reduce the proof size and communication *** realizing the ingenious use of aggregated proof and smart contracts,the verification efficiency of blocks is improved,and the pressure of node communication is reduced.

关键词： Blockchain cryptographic commitment smart contract data storage

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A Kind of Hierarchical data storage Management System Design for Wireless Sensor Network

A Kind of Hierarchical Data Storage Management System Design...

引用

第三十届中国控制会议

作者： MA Li,TANG Changmao,WANG Chunlei,XUE Fenye College of Information Engineering,North China University of Technology,Beijing 100144,P.R.China

Measuring,reporting physical variables related to their environment and then transmitting the data to user is the main context in wireless sensor network,so data storage and access has become one of the important issues. The routing protocol is the basis of data storage and access in wireless sensor *** the paper,center on data-centric and base on cluster-routing,design a kind of hierarchical data-storage management system for wireless sensor ***,from the perspective of data storage and data query,this paper introduce the system,and then verify the improvement on the energy consumption and query speed of the system by experiment,it provides a good way on data storage and management.

关键词： Wireless Sensor Network Cluster-Type Route data storage data Query

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

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

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

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

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

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：