Titlebook: Blockchain Technology and Emerging Technologies; Second EAI Internati Weizhi Meng,Wenjuan Li Conference proceedings 2023 ICST Institute for

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1867-8211 , BlockTEA 2022, held in Virtual Event, during November 21-22, 2022.?.The 10 full papers included in this book were carefully reviewed and selected from 28 submissions. They were organized in topical sections as follows: answer set programming; functional programming; Smart contract,?Privacy protect

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Combining ID’s, Attributes, and?Policies in?Hyperledger Fabricit is possible to combine multiple ID’s, attributes, and policies with the help of Hyperledger Fabric’s smart contract technology. Furthermore, it could be seen that the performance impact for real-world applications is negligible compared to the insecure case of always providing access to a resource without performing access control.