A Lightweight Data Sharing Mechanism and Multiparty Computation for CPS

Xu, Zhiyong; Yang, Jian; Yin, Jinyong

doi:10.1109/vtc2020-spring48590.2020.9128631

Cited by 1 publication

(4 citation statements)

References 23 publications

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“…Finally, medical users can query the private data. Xu et al [28] proposed a verifiable secret sharing and multi-party coordination mechanism that can reduce the complexity and cost of interaction in a blockchain-based cyber-physical system. e user node sends an application to the witness node responsible for verifying the 1/n core shares distributed by the sensor node.…”

Section: Related Workmentioning

confidence: 99%

“…e user can view the data only after receiving a certain valid key share response. Literature [28,29] distributed the key to multiple places through a secret sharing mechanism, but only one data query request can be served. When the number of people applying for query is n, the system needs to transmit the key share set n times.…”

Section: Related Workmentioning

confidence: 99%

“…Unable to recover data when there is a failed node. Literature [28] Not specified Cyber-physical system Secret sharing Only one data query request can be served. When the number of inquiries is large, the system transmission volume is large.…”

Section: System Modelmentioning

confidence: 99%

“…erefore, our scheme is completely suitable for the blockchain storage system. e query mode of literature [28] and literature [29] is a multi-share, single-user mode. at is, the key shares are transferred to n nodes or objects.…”

Section: Adaption Analysismentioning

confidence: 99%

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Blockchain Data Sharing Query Scheme based on Threshold Secret Sharing

Chen

Zhang

Sun

2022

Security and Communication Networks

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Blockchain is a distributed ledger that combines technologies such as timestamp, cryptography, consensus mechanism, and peer-to-peer network. In the field of data recording and management, the blockchain data query scheme based on smart contracts consumes a lot of resources, and blockchain platforms that do not support smart contracts cannot achieve convenient data query. This study proposes a blockchain data sharing query scheme based on threshold secret sharing. The secret elements used to query data are shared through the Blakley space plane equation to limit the rights of the inquirer, ensuring the security of blockchain data query. At the same time, the Blakley space plane equation coefficient matrix is used to segment the data to be uploaded to the blockchain. It solves the problem that the data cannot be directly stored in the block due to their large size. It facilitates data uploading to the blockchain. The experimental results show that the additional time consumption of the secret sharing and recovery, data segmentation, and reconstruction of this scheme is much less than the block generation time. Therefore, this solution will not affect the normal operation of blockchain applications and can improve the security and the fault tolerance rate of data query.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Section: System Modelmentioning

confidence: 99%

Section: Adaption Analysismentioning

confidence: 99%

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