Attribute-Based Keyword Search over the Encrypted Blockchain
To address privacy concerns, data in the blockchain should be encrypted in advance to avoid data access from all users in the blockchain. However, encrypted data cannot be directly retrieved, which hinders data sharing in the blockchain. Several works have been proposed to deal with this problem. Ho...
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| Veröffentlicht in: | Computer modeling in engineering & sciences 2021, Vol.128 (1), p.269-282 |
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| container_title | Computer modeling in engineering & sciences |
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| creator | Yang, Zhen Zhang, Hongao Yu, Haiyang Li, Zheng Zhu, Bocheng Sinnott, Richard O. |
| description | To address privacy concerns, data in the blockchain should be encrypted in advance to avoid data access from all users in the blockchain. However, encrypted data cannot be directly retrieved, which hinders data sharing in the blockchain. Several works have been proposed to deal with
this problem. However, the data retrieval in these schemes requires the participation of data owners and lacks finer-grained access control. In this paper, we propose an attribute-based keyword search scheme over the encrypted blockchain, which allows users to search encrypted files over the
blockchain based on their attributes. In addition, we build a file chain structure to improve the efficiency of searching files with the same keyword. Security analysis proves the security of the proposed scheme. Theoretical analysis and experimental results in performance evaluation show
that our scheme is feasible and efficient. |
| doi_str_mv | 10.32604/cmes.2021.015210 |
| format | Article |
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this problem. However, the data retrieval in these schemes requires the participation of data owners and lacks finer-grained access control. In this paper, we propose an attribute-based keyword search scheme over the encrypted blockchain, which allows users to search encrypted files over the
blockchain based on their attributes. In addition, we build a file chain structure to improve the efficiency of searching files with the same keyword. Security analysis proves the security of the proposed scheme. Theoretical analysis and experimental results in performance evaluation show
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this problem. However, the data retrieval in these schemes requires the participation of data owners and lacks finer-grained access control. In this paper, we propose an attribute-based keyword search scheme over the encrypted blockchain, which allows users to search encrypted files over the
blockchain based on their attributes. In addition, we build a file chain structure to improve the efficiency of searching files with the same keyword. Security analysis proves the security of the proposed scheme. Theoretical analysis and experimental results in performance evaluation show
that our scheme is feasible and efficient.</description><subject>Access control</subject><subject>Attribute-Based Encryption</subject><subject>Blockchain</subject><subject>Cryptography</subject><subject>Data retrieval</subject><subject>Keywords</subject><subject>Performance evaluation</subject><subject>Searchable Encryption</subject><subject>Searching</subject><subject>Security</subject><subject>Smart Contract</subject><issn>1526-1492</issn><issn>1526-1506</issn><issn>1526-1506</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp1kD1PwzAYhCMEEqXwA9giMaf4u4nEQFuVD1GpAzC_cm2nTWmTYDtF5dfjNCBY8HI33D1-dVF0idGAEoHYtdoaNyCI4AHCnGB0FPWCigRzJI5_PMvIaXTm3BohKmia9aKbkfe2WDTeJGPpjI6fzP6jsjp-NtKqVVztjI39ysTTUtl97UNivKnUm1rJojyPTnK5cebiW_vR6930ZfKQzOb3j5PRLFFUIJRoSYZsQSXDTCGaS8y0oBxRTZnRUuGUCKa4poLnnC-yjItUMiqplhrninPaj646bm2r98Y4D-uqsWX4EghnQyxSytOQwl1K2co5a3KobbGVdg8YwWEkaEeCdiToRgqdedcpyqUpvfwFFwq8q6HdrZ0NdpikJT6UUYoZIMYoaJPLZuPBSwvLT3CYBeLtP8QW9-eA9gVmZ4IFaX2rjH4B0hOH1Q</recordid><startdate>2021</startdate><enddate>2021</enddate><creator>Yang, Zhen</creator><creator>Zhang, Hongao</creator><creator>Yu, Haiyang</creator><creator>Li, Zheng</creator><creator>Zhu, Bocheng</creator><creator>Sinnott, Richard O.</creator><general>Tech Science Press</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>7TB</scope><scope>8FD</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>2021</creationdate><title>Attribute-Based Keyword Search over the Encrypted Blockchain</title><author>Yang, Zhen ; 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this problem. However, the data retrieval in these schemes requires the participation of data owners and lacks finer-grained access control. In this paper, we propose an attribute-based keyword search scheme over the encrypted blockchain, which allows users to search encrypted files over the
blockchain based on their attributes. In addition, we build a file chain structure to improve the efficiency of searching files with the same keyword. Security analysis proves the security of the proposed scheme. Theoretical analysis and experimental results in performance evaluation show
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| source | Tech Science Press; EZB-FREE-00999 freely available EZB journals |
| subjects | Access control Attribute-Based Encryption Blockchain Cryptography Data retrieval Keywords Performance evaluation Searchable Encryption Searching Security Smart Contract |
| title | Attribute-Based Keyword Search over the Encrypted Blockchain |
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