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Privacy-Preserving Medical Information Systems Using Multi-authority Content-Based Encryption in Cloud

机译：在云中使用基于多权限内容的加密来保护隐私的医疗信息系统

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摘要

In the Medical Information Systems (MIS), the patient outsources his e-health records, a dramatically huge amount of health data, to a third party like cloud service provider. The Internet providing host-to-host communication using TCP/IP network topology has not satisfied the growing demands of data processing in MIS. Based on the content-to-consumer paradigm, content-centric networking architecture was proposed for simple easy-to-manage caching features to users. In this paper, we proposed a privacy-preserving e-health records scheme that protects name and content simultaneously. Our proposal has multi-authority without a trusted single or central authority to distribute secret keys, which avoids the key escrow problem and meets the distributed features of MIS. As we know, this scheme is the first multi-authority content-based encryption (MA-CBE). Furthermore, this MA-CBE resists up to (N-l) corrupted authorities collusion attack, and the security is proven to be semantically secure based on the standard decisional bilinear Diffie-Hellman assumption. Our comparison analysis reports that the proposal gives a better performance than other related schemes.
机译：在医疗信息系统（MIS）中，患者将其电子病历（即大量的健康数据）外包给第三方（如云服务提供商）。使用TCP / IP网络拓扑提供主机到主机通信的Internet不能满足MIS中不断增长的数据处理需求。基于内容对消费者的范式，提出了以内容为中心的网络体系结构，以为用户提供易于管理的简单缓存功能。在本文中，我们提出了一种可同时保护名称和内容的保护隐私的电子病历记录方案。我们的提议具有多机构权限，而没有受信任的单个或中央机构来分发密钥，从而避免了密钥托管问题并满足了MIS的分布式功能。众所周知，此方案是第一个基于多权限内容的加密（MA-CBE）。此外，此MA-CBE最多可抵抗（N-1）个损坏的授权机构串通攻击，并且基于标准决策双线性Diffie-Hellman假设，证明了安全性在语义上是安全的。我们的比较分析报告说，该提案比其他相关方案具有更好的性能。

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