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一个可以证明轻量级和安全的DSSE方案,智能设备客户端的存储成本是恒定的

Salim Sabah Bulbul¹, Zaid Ameen Abduljabbar², Rana Jassim Mohammed²

¹Directorate General of Education Basra, Ministry of Education, Basra, Iraq.

|April 25, 2024

概括

这项研究引入了一个新的,高效的动态可搜索对称加密 (DSSE) 方案. 它为智能设备上的云数据搜索提供了强大的隐私,而不会增加存储成本.

科学领域:

计算机科学计算机科学
密码学密码学密码学
数据安全数据安全

背景情况:

云数据外包是很受欢迎的,需要安全的搜索方法,如可搜索对称加密 (SSE).
动态SSE (DSSE) 允许更新文档,但通常会受到智能设备的高存储和查询成本的影响.
现有的DSSE方案在效率方面扎,导致智能设备客户端 (SDC) 的存储和计算开销增加.

研究的目的:

开发一个安全和轻量级的动态可搜索对称加密 (DSSE) 方案.
通过降低SDC的存储和查询成本,解决现有的DSSE计划的局限性.
确保DSSE中的II型前向和后向隐私,同时保持效率.

主要方法:

提出了一个新的DSSE方案,使用一个反向索引结构.
集成的哈希表与链接节点,以高效地管理加密的关键字.
实施了一个系统,在没有关键字计数器的情况下,在SDC方面实现了O(1) 存储成本,并为每个更新生成新的密钥.

主要成果:

实现了SDC的一次性O(1) 存储成本,消除了线性存储成本的增加.
在SDC方面展示了低成本的查询生成,平均6460纳秒.
与现有的DSSE方案相比,显著降低了服务器端搜索成本.

结论:

拟议的DSSE方案轻量化,安全和高效,使其适用于资源有限的智能设备.
它增强了用户体验,并促进了用于云数据管理的智能设备的更广泛采用.
该方案有效地平衡了隐私要求 (前进/后退隐私) 和性能.

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