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An extended chaotic maps-based keyword search scheme over encrypted data resist outside and inside keyword guessing attacks in cloud storage services

机译：在加密数据上扩展的基于混沌地图的关键字搜索方案可抵御云存储服务中的外部和内部关键字猜测攻击

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摘要

In this paper, we propose an extended chaotic maps-based keyword search scheme over encrypted data resist outside and inside keyword guessing attacks in cloud storage services, which achieves the essential requirements of a secure cloud storage service. A secure cloud storage service has to satisfy five security requirements: consistency, ciphertext indistinguishability, trapdoor indistinguishability and resist off-line keyword guessing attacks (including off-line outside keyword guessing attack and off-line inside keyword guessing attack). Moreover, due to the characteristics of extended chaotic maps and session key establishment, which allow two communication parties to agree a common session key and the agreed session key is only known by the data sender and the authorized data receiver. Therefore, in this paper, we integrated the concept of session key establishment and extended chaotic maps into our proposed scheme which aims to resist the off-line keyword guessing attacks not only from the outside cloud attackers but also from an inside malicious cloud server. To the best of our knowledge, none of the recently proposed secure keyword search schemes can resist inside keyword guessing attacks and this work is the first attempt to provide a secure keyword search scheme without inside keyword guessing attacks in cloud storage services.
机译：在本文中，我们提出了一种基于混沌映射的扩展关键字搜索方案，该方案基于加密数据抵制云存储服务中的外部和内部关键字猜测攻击，从而达到了安全的云存储服务的基本要求。安全的云存储服务必须满足五个安全要求：一致性，密文不可区分性，活板门不可区分性和抵御离线关键字猜测攻击（包括离线外部关键字猜测攻击和离线内部关键字猜测攻击）。此外，由于扩展的混沌映射和会话密钥建立的特性，这使得两个通信方可以同意一个公共会话密钥，并且仅数据发送者和授权数据接收者才知道该同意的会话密钥。因此，在本文中，我们将会话密钥建立和扩展的混沌映射概念整合到我们提出的方案中，该方案旨在抵御来自外部云攻击者和来自内部恶意云服务器的离线关键字猜测攻击。据我们所知，最近提出的安全关键字搜索方案都无法抵御内部关键字猜测攻击，这项工作是在云存储服务中提供没有内部关键字猜测攻击的安全关键字搜索方案的首次尝试。

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