| 基于区块链的访问控制技术研究进展 |
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| 作者姓名： | 高振升 曹利峰 杜学绘 |
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| 作者单位： | 信息工程大学，河南 郑州 450001 |
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| 基金项目： | 国家重点研发计划(2018YFB0803603);国家重点研发计划(2016YFB0501901);国家自然科学基金(61502531);国家自然科学基金(61702550) |
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| 摘 要： | 区块链技术有着去中心化、可信度高、难以篡改的特点，能够解决传统访问控制技术中存在的信任难题。通过总结现有的基于区块链的访问控制机制，分别从基于交易事务和基于智能合约两种实现方式分析了将区块链技术应用于访问控制领域的独有优势。根据区块链应用中的关键问题，从动态访问控制、链上空间优化、隐私数据保护3个关键技术总结了现有的研究进展。结合目前基于区块链的访问控制机制面临的挑战，提出了5点研究展望。
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| 关 键 词： | 区块链 访问控制 大数据 智能合约 隐私保护 |
Research progress of access control based on blockchain |
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| Authors: | Zhensheng GAO Lifeng CAO Xuehui DU |
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| Affiliation: | Information Engineering University, Zhengzhou 450001, China |
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| Abstract: | Blockchain technology has the features of decentralization, high credibility, non-tampering and traceability, which can address the trust problem in traditional access control technology.Based on the implementation with blockchain, the unique advantages of applying blockchain to access control are analyzed from two aspects: based on transaction and based on smart contract.Based on the key issues in blockchain application, the current research progress is summarized from three key technologies: dynamic access control, blockchain space optimization, and privacy data protection.Based on the challenges faced by the current blockchain-based access control mechanism, five research prospects are proposed. |
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| Keywords: | blockchain access control big data smart contract privacy protection |
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