基于区块链且支持验证的属性基搜索加密方案
TP309; 针对一对多搜索模型下共享解密密钥缺乏细粒度访问控制且搜索结果缺乏正确性验证的问题,提出了一种基于区块链且支持验证的属性基搜索加密方案.通过对共享密钥采用密文策略属性加密机制,实现细粒度访问控制.结合以太坊区块链技术,解决半诚实且好奇的云服务器模型下返回搜索结果不正确的问题,在按需付费的云环境下,实现用户和云服务器之间服务-支付公平,使各方诚实地按照合约规则执行.另外,依据区块链的不可篡改性,保证云服务器得到服务费,用户得到正确的检索结果,而不需要额外验证,减少用户计算开销.安全性分析表明,所提方案满足自适应选择关键词语义安全,能很好地保护用户的隐私以及数据的安全.性能对比及实验结...
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Published in | 通信学报 Vol. 41; no. 2; pp. 187 - 198 |
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Main Authors | , , , |
Format | Journal Article |
Language | Chinese |
Published |
河南理工大学计算机科学与技术学院,河南焦作,454003
25.02.2020
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Subjects | |
Online Access | Get full text |
ISSN | 1000-436X |
DOI | 10.11959/j.issn.1000-436x.2020011 |
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Abstract | TP309; 针对一对多搜索模型下共享解密密钥缺乏细粒度访问控制且搜索结果缺乏正确性验证的问题,提出了一种基于区块链且支持验证的属性基搜索加密方案.通过对共享密钥采用密文策略属性加密机制,实现细粒度访问控制.结合以太坊区块链技术,解决半诚实且好奇的云服务器模型下返回搜索结果不正确的问题,在按需付费的云环境下,实现用户和云服务器之间服务-支付公平,使各方诚实地按照合约规则执行.另外,依据区块链的不可篡改性,保证云服务器得到服务费,用户得到正确的检索结果,而不需要额外验证,减少用户计算开销.安全性分析表明,所提方案满足自适应选择关键词语义安全,能很好地保护用户的隐私以及数据的安全.性能对比及实验结果表明,所提方案在安全索引产生、搜索令牌生成、检索效率以及交易数量方面有一定的优化,更加适用于智慧医疗等一对多搜索场景. |
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AbstractList | TP309; 针对一对多搜索模型下共享解密密钥缺乏细粒度访问控制且搜索结果缺乏正确性验证的问题,提出了一种基于区块链且支持验证的属性基搜索加密方案.通过对共享密钥采用密文策略属性加密机制,实现细粒度访问控制.结合以太坊区块链技术,解决半诚实且好奇的云服务器模型下返回搜索结果不正确的问题,在按需付费的云环境下,实现用户和云服务器之间服务-支付公平,使各方诚实地按照合约规则执行.另外,依据区块链的不可篡改性,保证云服务器得到服务费,用户得到正确的检索结果,而不需要额外验证,减少用户计算开销.安全性分析表明,所提方案满足自适应选择关键词语义安全,能很好地保护用户的隐私以及数据的安全.性能对比及实验结果表明,所提方案在安全索引产生、搜索令牌生成、检索效率以及交易数量方面有一定的优化,更加适用于智慧医疗等一对多搜索场景. |
Author | 原笑含 汤永利 闫玺玺 陈艳丽 |
AuthorAffiliation | 河南理工大学计算机科学与技术学院,河南焦作,454003 |
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