An Efficient Scheme of Common Secure Indices for Conjunctive Keyword-Based Retrieval on Encrypted Data
An Efficient Scheme of Common Secure Indices for Conjunctive Keyword-Based Retrieval on Encrypted Data
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DOI：
10.1007/978-3-642-00306-6_11
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发表时间：
2009-02
期刊：
影响因子：
16
通讯作者：
Peishun Wang;Huaxiong Wang;J. Pieprzyk
中科院分区：
文献类型：
--
作者：
Peishun Wang;Huaxiong Wang;J. Pieprzyk
我们考虑以下问题：在一个动态组中的成员检索他们的加密数据从一个不可信的服务器上的关键字的基础上，而不会有任何损失的数据的机密性和成员的隐私。本文研究了加密数据上基于合取关键字检索的安全索引，并利用Wanget等的动态累加器、Nyberg组合累加器和Kiayiaset等的公钥加密系统构造了一个有效的方案。该方案是无陷门和关键字字段自由。在随机预言、决策复合剩余和扩展的强RSA假设下证明了该方案的安全性。
We consider the following problem: members in a dynamic group retrieve their encrypted data from an untrusted server based on keywords and without any loss of data confidentiality and member’s privacy. In this paper, we investigate common secure indices for conjunctive keyword-based retrieval over encrypted data, and construct an efficient scheme from Wanget al.dynamic accumulator, Nyberg combinatorial accumulator and Kiayiaset al.public-key encryption system. The proposed scheme is trapdoorless and keyword-field free. The security is proved under the random oracle, decisional composite residuosity and extended strong RSA assumptions.