计算机科学
块链
Byzantine容错
云计算
访问控制
建筑
计算机安全
数据共享
工作证明制度
物联网
密码系统
秘密分享
密码学
智能合约
容错
计算机网络
可扩展性
分布式计算
边缘计算
操作系统
医学
艺术
病理
视觉艺术
替代医学
作者
Yunru Zhang,Debiao He,Kim-Kwang Raymond Choo
摘要
Internet of Things (IoT) and cloud computing are increasingly integrated, in the sense that data collected from IoT devices (generally with limited computational and storage resources) are being sent to the cloud for processing, etc., in order to inform decision making and facilitate other operational and business activities. However, the cloud may not be a fully trusted entity, like leaking user data or compromising user privacy. Thus, we propose a privacy-preserving and user-controlled data sharing architecture with fine-grained access control, based on the blockchain model and attribute-based cryptosystem. Also, the consensus algorithm in our system is the Byzantine fault tolerance mechanism, rather than Proof of Work.
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