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首页> 外文期刊>International journal of electronic security and digital forensics >Secure k-NN query on encrypted cloud database without key-sharing
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Secure k-NN query on encrypted cloud database without key-sharing

机译:在没有密钥共享的情况下对加密的云数据库进行安全的k-NN查询

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摘要

In cloud computing, secure analysis on outsourced encrypted data is a significant topic. As a frequently used query for online applications, secure k-nearest neighbours (k-NN) computation on encrypted cloud data has received much attention, and several solutions for it have been put forward. However, most existing schemes assume the query users are fully trusted and all query users know the entire key which is used to encrypt and decrypt data owner's outsourced database. It is constitutionally not feasible in lots of real-world applications. In this paper, we propose a novel secure and practical scheme for preserving data privacy and supporting k-NN query on encrypted cloud data. In the new approach, only limited information about the key of data owner is disclosed to query users, and the data privacy can be protected even when query users leak their knowledge about the key to adversary. Theoretical analysis and experiment results confirm the security and practicality of our scheme.
机译:在云计算中,对外包加密数据的安全分析是一个重要的主题。作为在线应用程序的一种常用查询,对加密云数据的安全k最近邻(k-NN)计算已引起广泛关注,并提出了几种解决方案。但是,大多数现有方案都假定查询用户是完全受信任的,并且所有查询用户都知道用于加密和解密数据所有者的外包数据库的整个密钥。从宪法上讲,在许多实际应用中这是不可行的。在本文中,我们提出了一种新颖,安全,实用的方案来保护数据隐私并支持对加密的云数据进行k-NN查询。在新方法中,仅向查询用户公开有关数据所有者密钥的有限信息,即使查询用户向对手泄露其密钥知识,数据隐私也可以得到保护。理论分析和实验结果证实了该方案的安全性和实用性。

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