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- W4313456410 abstract "In a large-scale networking scenario with massive distribution of devices, data are independently generated and maintained by multiple domains. To solve the problem of isolated data islands in multi-domain, this paper designs a multi-domain data sharing model based on consortium chain. Aiming at the problems of low efficiency and lack of consideration of intra-domain consensus processes in traditional data sharing schemes, this paper optimizes the security and efficiency of data sharing from two parts: inter-domain chain and intra-domain chain. To ensure fine granularity, flexibility and security of the access control process in inter-domain chain, this model combines the Attribute-Based Access Control (ABAC) with smart contract, and a permission grading mechanism is designed to solve the problem of low retrieval efficiency in this access control model through reducing the retrieval range by grading and matching Policy set. Considering the problem of high delay of node consensus in the large-scale networking environment of intra-domain chain, a layered practical Byzantine fault tolerance optimization (LPBFT) algorithm with introducing a reputation model is designed, which greatly improves the efficiency and security of the intra-domain consensus. The consortium chain model is designed and implemented from the perspectives of inter-domain and intra-domain, which optimized the security and efficiency of the multi-domain data sharing model. Finally, a prototype system is implemented based on Hyperledger Fabric, and the validity of the model is verified from the aspects of inter-domain access control and intra-domain consensus algorithm." @default.
- W4313456410 created "2023-01-06" @default.
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- W4313456410 date "2022-12-21" @default.
- W4313456410 modified "2023-09-30" @default.
- W4313456410 title "A secure and efficient multi-domain data sharing model on consortium chain" @default.
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- W4313456410 doi "https://doi.org/10.1007/s11227-022-05010-4" @default.
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