DSChain: A Blockchain System for Complete Lifecycle Security of Data in Internet of Things

【Author】 Cui, Jie; Li, Yatao; Zhang, Qingyang; Zhong, Hong; Gu, Chengjie; He, Debiao

【Source】IEEE TRANSACTIONS ON DEPENDABLE AND SECURE COMPUTING

【影响因子】6.791

【Abstract】There is a growing concern about the complete lifecycle security of data in Internet of Things (IoT). This may cause privacy and trust problems for users regarding data sources, data storage, and access control for data sharing. Blockchain is a valuable solution to the above problems through distributed ledger technology, and it has been widely applied in various fields such as public services, finance, and IoT. However, the data in IoT are characterized by a large quantity, large capacity, and timely response, and existing blockchain systems only partially resolve them for data security and performance. We propose DSChain for IoT data security to address the challenges mentioned above. Our system uses a certificateless signature to ensure a trusted data source and public auditing to ensure the integrity of stored data while using ciphertext-policy attribute-based encryption to control access to shared data. Moreover, we propose a packaging mechanism based on the Merkle Hash Tree that effectively improves system performance. We implement the DSChain and provide a detailed analysis of performance and security. The experimental results indicate that DSChain can achieve approximately 1035 transactions per second on a single peer and is scalable.

【Keywords】Blockchains; Internet of Things; Security; Soft sensors; Data privacy; Packaging; Encryption; Blockchain; IoT; certificateless signature; ciphertext policy; ABE; public auditing; data lifecycle security

【发表时间】2024 JUL-AUG

【收录时间】2024-08-12

【文献类型】实验仿真

【主题类别】

区块链应用-实体经济-物联网