检索结果-南通市图书馆

BC-PC-Share:Blockchain-Based Patient-Centric data sharing Scheme for PHRs in Cloud Computing

Computer Modeling in Engineering & Sciences 2023年第9期136卷 2985-3010页

作者： Caihui Lan Haifeng Li School of Electronic and Information Engineering Lanzhou City UniversityLanzhou730070China School of Software Dalian University of Foreign LanguagesDalian116044China School of Software Dalian University of TechnologyDalian116024China

sharing of personal health records(PHR)in cloud computing is an essential functionality in the healthcare ***,how to securely,efficiently and flexibly share PHRs data of the patient in a multi-receiver setting has not been well *** instance,since the trust domain of the cloud server is not identical to the data owner or data user,the semi-trust cloud service provider may intentionally destroy or tamper shared PHRs data of user or only transform partial ciphertext of the shared PHRs or even return wrong computation results to save its storage and computation resource,to pursue maximum economic interest or other malicious ***,the PHRs data storing or sharing via the cloud server should be performed with consistency and integrity ***,the emergence of blockchain technology provides new ideas and prospects for ensuring the consistency and integrity of shared PHRs *** this end,in this work,we leverage the consortiumblockchain technology to enhance the trustworthiness of each participant and propose a blockchain-based patient-centric data sharing scheme for PHRs in cloud computing(BC-PC-Share).Different from the state-of-art schemes,our proposal can achieve the following desired properties:(1)Realizing patient-centric PHRs sharing with a public verification function,i.e.,which can ensure that the returned shared data is consistent with the requested shared data and the integrity of the shared data is not compromised.(2)Supporting scalable and fine-grained access control and sharing of PHRs data with multiple domain users,such as hospitals,medical research institutes,and medical insurance companies.(3)Achieving efficient user decryption by leveraging the transformation key technique and efficient user revocation by introducing time-controlled *** security analysis and simulation experiment demonstrate that the proposed BC-PC-Share scheme is a feasible and promising solution for PHRs data sharing via consortium b

关键词： Blockchain patient-centric personal health records data sharing attribute-based 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

Secure personal data sharing in cloud computing using attribute-based broadcast encryption

引用

The Journal of China Universities of Posts and Telecommunications 2014年第6期21卷 45-51,77页

作者： FU Jing-yi HUANG Qin-long MA Zhao-feng YANG Yi-xian Information Security Center Beijing University of Posts and Telecommunications National Engineering Laboratory for Disaster Backup and Recovery Beijing University of Posts and Telecommunications Beijing National Security Science and Technology Co. Ltd

The ciphertext-policy（CP） attribute-based encryption（ABE）（CP-ABE） emergings as a promising technology for allowing users to conveniently access data in cloud computing. Unfortunately, it suffers from several drawbacks such as decryption overhead, user revocation and privacy preserving. The authors proposed a new efficient and privacy-preserving attribute-based broadcast encryption（BE）（ABBE） named EP-ABBE, that can reduce the decryption computation overhead by partial decryption, and protect user privacy by obfuscating access policy of ciphertext and user＇s attributes. Based on EP-ABBE, a secure and flexible personal data sharing scheme in cloud computing was presented, in which the data owner can enjoy the flexibly of encrypting personal data using a specified access policy together with an implicit user index set. With the proposed scheme, efficient user revocation is achieved by dropping revoked user＇s index from the user index set, which is with very low computation cost. Moreover, the privacy of user can well be protected in the scheme. The security and performance analysis show that the scheme is secure, efficient and privacy-preserving.

关键词： data sharing ABBE ABE user revocation partial decryption privacy preserving

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

SSEM： Secure, Scalable and Efficient Multi-Owner data sharing in Clouds

引用

China Communications 2016年第8期13卷 231-243页

作者： Shungan Zhou Ruiying Du Jing Chen Hua Deng Jian Shen Huanguo Zhang The Key Laboratory of Aerospace Information Security and Trusted Computing Ministry of Education Computer School of Wuhan University Wuhan 430072 Hubei Province China State Grid Information and Communication Company of Hunan Electric Power Corp Changsha 410000 Hunan Province China

data sharing is a main application of cloud computing. Some existing solutions are proposed to provide flexible access control for outsourced data in the cloud. However, few attentions have been paid to group-oriented data sharing when multiple data owners want to share their private data for cooperative purposes. In this paper, we put forward a new paradigm, referred to as secure, scalable and efficient multi-owner(SSEM) data sharing in clouds. The SSEM integrates identity-based encryption and asymmetric group key agreement to enable group-oriented access control for data owners in a many-to-many sharing pattern. Moreover, with SSEM, users can join in or leave from the group conveniently with the privacy of both group data and user *** proposed the key-ciphertext homomorphism technique to construct an SSEM scheme with short ciphertexts. The security analysis shows that our SSEM scheme achieves data security against unauthorized accesses and collusion attacks. Both theoretical and experimental results confirm that our proposed scheme takes users little costs to share and access outsourced data in a group manner.

关键词： data sharing cloud computing asymmetric key agreement access control

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

Achieving Fuzzy Matching data sharing for Secure Cloud-Edge Communication

引用

China Communications 2022年第7期19卷 257-276页

作者： Chuan Zhang Mingyang Zhao Yuhua Xu Tong Wu Yanwei Li Liehuang Zhu Haotian Wang School of Cyberspace Science and Technology Beijing Institute of TechnologyBeijing 100081China School of Computer Science and Technology Beijing Institute of TechnologyBeijing 100081China Yangtze Delta Region Academy of Beijing Institute of Technology Jiaxing 314019China National Computer Network Emergency Response Technical Team/Coordination Center of China Beijing 100029China College of Arts and Science University of PennsylvaniaPhiladelphia 19104USA

In this paper,we propose a novel fuzzy matching data sharing scheme named FADS for cloudedge *** allows users to specify their access policies,and enables receivers to obtain the data transmitted by the senders if and only if the two sides meet their defined certain policies ***,we first formalize the definition and security models of fuzzy matching data sharing in cloud-edge ***,we construct a concrete instantiation by pairing-based cryptosystem and the privacy-preserving set intersection on attribute sets from both sides to construct a concurrent matching over the *** the matching succeeds,the data can be ***,nothing will be *** addition,FADS allows users to dynamically specify the policy for each time,which is an urgent demand in practice.A thorough security analysis demonstrates that FADS is of provable security under indistinguishable chosen ciphertext attack(IND-CCA)in random oracle model against probabilistic polynomial-time(PPT)adversary,and the desirable security properties of privacy and authenticity are *** experiments provide evidence that FADS is with acceptable efficiency.

关键词： fuzzy-matching privacy-preserving set intersection cloud-edge communication data sharing

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

Federated Learning with Blockchain for Privacy-Preserving data sharing in Internet of Vehicles

引用

China Communications 2023年第3期20卷 69-85页

作者： Wenxian Jiang Mengjuan Chen Jun Tao School of Cyber Science and Engineering Southeast UniversityNanjing 211189China College of Computer Science and Technology Huaqiao UniversityXiamen 361021China Key Lab of CNII MOESoutheast UniversityNanjing 211189China Purple Mountain Laboratories:Networking Communications and Security Nanjing 211111China

data sharing technology in Internet of Vehicles(Io V)has attracted great research interest with the goal of realizing intelligent transportation and traffic ***,the main concerns have been raised about the security and privacy of vehicle *** mobility and real-time characteristics of vehicle data make data sharing more difficult in Io *** emergence of blockchain and federated learning brings new *** this paper,a data-sharing model that combines blockchain and federated learning is proposed to solve the security and privacy problems of data sharing in Io ***,we use federated learning to share data instead of exposing actual data and propose an adaptive differential privacy scheme to further balance the privacy and availability of ***,we integrate the verification scheme into the consensus process,so that the consensus computation can filter out low-quality *** data shows that our data-sharing model can better balance the relationship between data availability and privacy,and also has enhanced security.

关键词： blockchain federated learning privacy data sharing Internet of Vehicles

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

Blockchain-Enabled Federated Learning for Privacy-Preserving Non-IID data sharing in Industrial Internet

引用

Computers, Materials & Continua 2024年第8期80卷 1967-1983页

作者： Qiuyan Wang Haibing Dong Yongfei Huang Zenglei Liu Yundong Gou School of Electrical and Information Engineering Hunan Institute of TechnologyHengyang421002China

sharing data while protecting privacy in the industrial Internet is a significant *** machine learning methods require a combination of all data for training;however,this approach can be limited by data availability and privacy *** learning(FL)has gained considerable attention because it allows for decentralized training on multiple local ***,the training data collected by data providers are often non-independent and identically distributed(non-IID),resulting in poor FL *** paper proposes a privacy-preserving approach for sharing non-IID data in the industrial Internet using an FL approach based on blockchain *** overcome the problem of non-IID data leading to poor training accuracy,we propose dynamically updating the local model based on the divergence of the global and local *** approach can significantly improve the accuracy of FL training when there is relatively large *** addition,we design a dynamic gradient clipping algorithm to alleviate the influence of noise on the model accuracy to reduce potential privacy leakage caused by sharing model ***,we evaluate the performance of the proposed scheme using commonly used open-source image *** simulation results demonstrate that our method can significantly enhance the accuracy while protecting privacy and maintaining efficiency,thereby providing a new solution to data-sharing and privacy-protection challenges in the industrial Internet.

关键词： Federated learning data sharing non-IID data differential privacy blockchain

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

Improved Secure Identification-Based Multilevel Structure of data sharing in Cloud Environments

引用

Computer Systems Science & Engineering 2022年第11期43卷 785-801页

作者： Saraswathi Shunmuganathan Sridharan Kannan T.V.Madhusudhana Rao K.Ambika T.Jayasankar Department of Computer Science and Engineering SSN College of EngineeringChennaiTamil Nadu603110India Department of Computer Science and Engineering J.K.K.Munirajah College of TechnologyErodeTamil Nadu638506India Department of Computer Science and Engineering Vignan’s Institute of Information TechnologyVisakhapatnam530049India Department of Computer Science and Engineering University College of EngineeringBIT CampusAnna UniversityTiruchirappalliTamil Nadu620024India Department of Electronics and Communication Engineering University College of EngineeringBIT CampusAnna UniversityTiruchirappalli620024India

The Cloud Computing Environment(CCE)developed for using the dynamic cloud is the ability of software and services likely to grow with any *** has transformed the methodology for storing the enterprise data,accessing the data,and data sharing(DS).Big data frame a constant way of uploading and sharing the cloud data in a hierarchical architecture with different kinds of separate privileges to access the *** the requirement of vast volumes of storage area in the CCEs,capturing a secured data access framework is an important *** paper proposes an Improved Secure Identification-based Multilevel Structure of data sharing(ISIMSDS)to hold the DS of big data in *** complex file partitioning technique is proposed to verify the access privilege context for sharing data in complex *** access control Encryption Method(EM)is used to improve the *** Complexity is measured to increase the authentication *** active attack is protected using this ISIMSDS *** proposed ISIMSDS method assists in diminishing the Complexity whenever the user’s population is increasing *** security analysis proves that the proposed ISIMSDS methodology is more secure against the chosen-PlainText(PT)attack and provides more efficient computation and storage space than the related *** performance of the proposed ISIMSDS methodology provides more efficiency in communication costs such as encryption,decryption,and retrieval of the data.

关键词： data sharing cloud environments big data chosen-plaintext attack security

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

Earth observation satellite data receiving, processing system and data sharing

引用

International Journal of Digital Earth 2012年第3期5卷 241-250页

作者： Huadong Guo Jianbo Liu An Li Jianguo Zhang Center for Earth Observation and Digital Earth Chinese Academy of SciencesBeijingChina

The China Remote Sensing Satellite Ground Station was established in *** currently has three receiving stations in the north,west,and south of China,with the capacity to receive data from 15 international and domestic Earth observation satellites covering the entire Chinese territory and 70%of ***,a systematic,integrated,and standardized spatial information service system has been built.A data-sharing project for medium-resolution Earth observation satellites has been conducted and plays an important role in land,ocean,and atmospheric resource investigation and environmental monitoring.

关键词： Earth observation data receiving data sharing remote sensing applications

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

Achieving Fine-Grained and Flexible Access Control on Blockchain-Based data sharing for the Internet of Things

引用

China Communications 2022年第6期19卷 22-34页

作者： Ruimiao Wang Xiaodong Wang Wenti Yang Shuai Yuan Zhitao Guan School of Control and Computer Engineering North China Electric Power UniversityBeijing 102206China Department of Finance Operationsand Information SystemsBrock UniversityCanada

The traditional centralized data sharing systems have potential risks such as single point of failures and excessive working load on the central *** a distributed and collaborative alternative,approaches based upon blockchain have been explored recently for Internet of Things(IoTs).However,the access from a legitimate user may be denied without the pre-defined policy and data update on the blockchain could be costly to the *** this paper,we first address these issues by incorporating the Accountable Subgroup Multi-Signature(ASM)algorithm into the Attribute-based Access Control(ABAC)method with Policy Smart Contract,to provide a finegrained and flexible ***,we propose a policy-based Chameleon Hash algorithm that allows the data to be updated in a reliable and convenient way by the authorized ***,we evaluate our work by comparing its performance with the *** results demonstrate significant improvement on the effectiveness and efficiency.

关键词： blockchain access control smart contract multi-signature chameleon-hash data sharing Internet of Things

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

LUCE:A blockchain-based data sharing platform for monitoring data License accoUntability and CompliancE

引用

Blockchain(Research and Applications) 2022年第4期3卷 123-132页

作者： Visara Urovi Vikas Jaiman Arno Angerer Michel Dumontier Institute of data Science(IDS) Maastricht University6200 MD Maastrichtthe Netherlands School of Business and Economics Maastricht University6200 MD Maastrichtthe Netherlands

Easy access to data is one of the main avenues to accelerate scientific *** a key element of scientific innovations,data sharing allows the reproduction of results and helps prevent data fabrication,falsification,and *** the research benefits from data reuse are widely acknowledged,the data collections existing today are still kept in ***,monitoring what happens to data once they have been handed to a third party is currently not feasible within the current data sharing *** propose a blockchain-based system to trace data collections and potentially create a more trustworthy data sharing *** this paper,we present the LUCE(License accoUntability and CompliancE)architecture as a decentralized blockchain-based platform supporting data sharing and *** is designed to provide full transparency on what happens to the data after they are shared with third *** contributions of this work consist of i)the design of a decentralized data sharing solution with accountability and compliance by design and ii)the inclusion of a dynamic consent model for personalized data sharing preferences and for enabling legal compliance *** test the scalability of the platform in a real-time environment where a growing number of users access and reuse different *** to existing data sharing solutions,LUCE provides transparency over data sharing practices,enables data reuse,and supports regulatory *** experimentation shows that the platform can be scaled for a large number of users.

关键词： Blockchain Distributed ledgers data sharing data reuse dataset tracking GDPR

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

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：