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摘要:
Despite the benefits of EHRs (Electronic Health Records), there is a growing concern over the risks of privacy exposure associated with the technologies of EHR storing and transmission. To deal with this problem, a timeaware searchable encryption with designated server is proposed in this paper. It is based on Boneh's public key encryption with keyword search and Rivest's timed-release cryptology. Our construction has three features: the user cannot issue a keyword search query successfully unless the search falls into the specific time range;only the authorized user can generate a valid trapdoor;only the designated server can execute the search. Applying our scheme in a multi-user environment, the number of the keyword ciphertexts would not increase linearly with the number of the authorized users. The security and performance analysis shows that our proposed scheme is securer and more efficient than the existing similar schemes.
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篇名 A time-aware searchable encryption scheme for EHRs
来源期刊 数字通信与网络:英文版 学科 工学
关键词 Searchable ENCRYPTION Timed-release Designated server PRIVACY PRESERVING EHRs
年,卷(期) 2019,(3) 所属期刊栏目
研究方向 页码范围 170-175
页数 6页 分类号 TN
字数 语种
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研究主题发展历程
节点文献
Searchable
ENCRYPTION
Timed-release
Designated
server
PRIVACY
PRESERVING
EHRs
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研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
数字通信与网络:英文版
季刊
2468-5925
50-1212/TN
重庆南岸区崇文路2号重庆邮电大学数字通信
78-45
出版文献量(篇)
11481
总下载数(次)
2
总被引数(次)
0
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