Searchable Multi-server CP-ABE Scheme Based on Authorization

Yulei ZHANG; Wenjing LIU; Xiangzhen LIU; Yongjie ZHANG; Caifen WANG

doi:10.11999/JEIT180944

Volume 41 Issue 8

Aug. 2019

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Article Navigation > Journal of Electronics & Information Technology > 2019 > 41(8): 1808-1814

Yulei ZHANG, Wenjing LIU, Xiangzhen LIU, Yongjie ZHANG, Caifen WANG. Searchable Multi-server CP-ABE Scheme Based on Authorization[J]. Journal of Electronics & Information Technology, 2019, 41(8): 1808-1814. doi: 10.11999/JEIT180944

Citation:

Yulei ZHANG, Wenjing LIU, Xiangzhen LIU, Yongjie ZHANG, Caifen WANG. Searchable Multi-server CP-ABE Scheme Based on Authorization[J]. Journal of Electronics & Information Technology, 2019, 41(8): 1808-1814. doi: 10.11999/JEIT180944

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Searchable Multi-server CP-ABE Scheme Based on Authorization

doi: 10.11999/JEIT180944

1.
College of Computer Science and Engineering, Northwest Normal University, Lanzhou 730070, China
2.
Gansu Health Vocational College, Lanzhou 730070, China

Funds: The National Natural Science Foundation of China (61163038, 61262056, 61262057), The Higher Educational Scientific Research Foundation of Gansu Province (2017A-003, 2018A-207)

Received Date: 2018-10-10
Rev Recd Date: 2019-01-19

Available Online: 2019-02-18

Publish Date: 2019-08-01

Abstract

Abstract

Considering that the existing attribute-based searchable encryption scheme lacks the authorization service to the cloud server, a multi-server searchable Ciphertext Polity Attribute Base Encryption (CP-ABE) scheme is proposed based on authorization. The scheme implements search services through a cloud filter server, cloud search server and cloud storage server cooperation mechanism. The users send the authorization information to the cloud filter server at once, then the server creates the authorization information; The cloud search server creates the trapdoor information based on the trapdoor information sent by the users. Without decrypting the cipher text, the cloud filter server can detect all the cipher texts. Multiple attribute authorities can be used to ensure efficient and fine-grained access under the premise of ensuring data confidentiality, solving the problem of leakage of data user keys. It can improve the data retrieval efficiency when people use the cloud server. Through security analysis, it is proved that the scheme can not steal sensitive information of data users while providing data retrieval services, and it can effectively prevent the leakage of data privacy.
- Cloud storage,
- Authorization server,
- Searchable encryption,
- Attribute-based cipher text policy encryption,
- Multi-attribute authority

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References(18)

References

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