.png){kind=icon}
返回
A Blockchain-Based Authentication and Authorization Scheme for Distributed Mobile Cloud Computing Services
.png){kind=icon}
OA
AI
DOI：10.3390/s23031264.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Authentication and authorization constitute the essential security component, access control, for preventing unauthorized access to cloud services in mobile cloud computing (MCC) environments. Traditional centralized access control models relying on third party trust face a critical challenge due to a high trust cost and single point of failure. Blockchain can achieve the distributed trust for access control designs in a mutual untrustworthy scenario, but it also leads to expensive storage overhead. Considering the above issues, this work constructed an authentication and authorization scheme based on blockchain that can provide a dynamic update of access permissions by utilizing the smart contract. Compared with the conventional authentication scheme, the proposed scheme integrates an extra authorization function without additional computation and communication costs in the authentication phase. To improve the storage efficiency and system scalability, only one transaction is required to be stored in blockchain to record a user's access privileges on different service providers (SPs). In addition, mobile users in the proposed scheme are able to register with an arbitrary SP once and then utilize the same credential to access different SPs with different access levels. The security analysis indicates that the proposed scheme is secure under the random oracle model. The performance analysis clearly shows that the proposed scheme possesses superior computation and communication efficiencies and requires a low blockchain storage capacity for accomplishing user registration and updates.
Keyword:
authentication
authorization
access control
mobile cloud computing
blockchain
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
3.5
论文数:
7.2W
被引数:
20.9W
机构
引用论文
.png){kind=icon}
Vertically MoS2 on Reduced Graphene Oxide with Superior Durability for Quasi‐solid‐state Supercapacitor还原氧化石墨烯上的垂直MoS2 具有优异的耐久性，用于准固态超级电容器
PREAI
分享收藏Provably secure authenticated key agreement scheme for distributed mobile cloud computing services可证明安全的分布式移动云计算服务认证密钥协商方案
PREAI
分享收藏分享收藏Blockchain-Based Anonymous Authentication With Selective Revocation for Smart Industrial Applications面向智能工业应用的基于区块链的匿名认证和选择性撤销
PREAI
分享收藏High-kDielectric Materials by Metalorganic Chemical Vapor Deposition: Growth and Characterization
PREAI
分享收藏
查看更多内容