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摘要:
With the widespread use of cloud computing technology,more and more users and enterprises decide to store their data in a cloud server by outsourcing.However,these huge amounts of data may contain personal privacy,business secrets and other sensitive information of the users and enterprises.Thus,at present,how to protect,retrieve,and legally use the sensitive information while preventing illegal accesses are security challenges of data storage in the cloud environment.A new proxy re-encryption with keyword search scheme is proposed in this paper in order to solve the problem of the low retrieval efficiency of the encrypted data in the cloud server.In this scheme,the user data are divided into files,file indexes and the keyword corresponding to the files,which are respectively encrypted to store.The improved scheme does not need to re-encrypt partial file cipher-text as in traditional schemes,but re-encrypt the cipher-text of keywords corresponding to the files.Therefore the scheme can improve the computational efficiency as well as resist chosen keyword attack.And the scheme is proven to be indistinguishable under Hash Diffie-Hellman assumption.Furthermore,the scheme does not need to use any secure channels,making it more effective in the cloud environment.
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文献信息
篇名 A Proxy Re-Encryption with Keyword Search Scheme in Cloud Computing
来源期刊 计算机、材料和连续体(英文) 学科 工学
关键词 CLOUD COMPUTING KEYWORD SEARCH PROXY re-encryption provable security
年,卷(期) 2018,(8) 所属期刊栏目
研究方向 页码范围 339-352
页数 14页 分类号 TP3
字数 语种
DOI
五维指标
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研究主题发展历程
节点文献
CLOUD
COMPUTING
KEYWORD
SEARCH
PROXY
re-encryption
provable
security
研究起点
研究来源
研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
计算机、材料和连续体(英文)
月刊
1546-2218
江苏省南京市浦口区东大路2号东大科技园A
出版文献量(篇)
346
总下载数(次)
4
总被引数(次)
0
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