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- W3178759670 abstract "Although the blockchain-based Internet of Things (BC-IoT) has been applied in many fields, it still faces many security attacks due to lacking policy-based security management (PbSM). Previous PbSM is usually time-consuming, which is difficult to integrate into BC-IoT directly. The high-latency policy conflict resolving in traditional PbSM cannot meet the BC-IoT’s low-latency requirement. Moreover, the conflict resolution rate is low as the PbSM usually neglects the runtime information. Therefore, it is challenging that achieving an efficient PbSM for BC-IoT and overcomes both time and resource consumption. To address the problem, we propose a novel PbSM for BC-IoT named FPICR to realize fast policy interpretation and dynamic conflict resolution efficiently. We first present policy templates based on system log to interpret policy in high speed in BC-IoT. Benefiting from matching the characteristics of the system processing, FPICR supports interpreting a policy into the smart contract directly without complex content parsing. We then propose a weighted directed policy graph (WDPG) to evaluate the importance of the deployed policies more accurately. To improve the policy conflict resolution rate, we implement the resolution algorithm through reconstructing the WDPG. Taking the traits of these properties, FPICR thus can also remove the redundant data to compress storage space by the WDPG. Experiment results highlight that FPICR outperforms the baseline in all measure metrics. Especially, compared with the state-of-the-art method, the speedup of interpretation in FPICR is about up to <math xmlns=http://www.w3.org/1998/Math/MathML id=M1> <mn>2.1</mn> <mo>×</mo> </math> . The conflict resolution rate in FPICR can be improved by 6.2% on average and achieve up to 96.1%." @default.
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- W3178759670 date "2021-07-08" @default.
- W3178759670 modified "2023-10-16" @default.
- W3178759670 title "Fast Policy Interpretation and Dynamic Conflict Resolution for Blockchain-Based IoT System" @default.
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- W3178759670 doi "https://doi.org/10.1155/2021/9968743" @default.
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