基于区块链的去中心化多授权机构访问控制方法

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关键词：访问控制；区块链；智能合约；属性加密；数据共享

中图分类号：TP311.13 文献标志码：A 文章编号：1671-6841（2025）05-0046-08

DOI：10.13705/j.issn.1671-6841.2024032

Abstract： The traditional accesscontrol scheme based on single authorization authority.To solve its single point of failure and ineficiency，a decentralized multi-authorization authority access control method was proposed based on blockchain.Firstly，The approach used the consortium blockchain based multi-authorization authorities to replace the centralized entity in traditional accesscontrol methods，which could provide reliable and fine-grained access control. Secondly，smart contract allowed automatic policy judgments，and to solve the access efficiency problem caused by multiple authorized institutions，a data mapping algorithm based on smart contract was proposed to achieve fast access，which constructed a mapping table of key data information.Finaly，experiments showed that the proposed scheme could effectively reduce user access delay and realize secure sharing during data access.

Key words： access control; blockchain; smart contract； attribute-based encryption; data sharing

0 引言

随着科技的不断发展，实现数据共享和促进数据互操作性变得至关重要，这有助于更精准地访问数据并提高数据的潜在利用价值1。（剩余12327字）