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Ciphertext-Policy Attribute-Based Encrypted Data Equality Test and Classification

Journal Article


Abstract


  • © 2019 The British Computer Society 2019. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. Thanks to the ease of access and low expenses, it is now popular for people to store data in cloud servers. To protect sensitive data from being leaked to the outside, people usually encrypt the data in the cloud. However, management of these encrypted data becomes a challenging problem, e.g. data classification. Besides, how to selectively share data with other users is also an important and interesting problem in cloud storage. In this paper, we focus on ciphertext-policy attribute based encryption with equality test (CP-ABEET). People can use CP-ABEET to implement not only flexible authorization for the access to encrypted data, but also efficient data label classification, i.e. test of whether two encrypted data contain the same message. We construct an efficient CP-ABEET scheme, and prove its security based on a reasonable number-theoretic assumption. Compared with the only existing CP-ABEET scheme, our construction is more efficient in key generation, and has shorter attribute-related secret keys and better security.

Authors


  •   Cui, Yuzhao (external author)
  •   Huang, Qiong (external author)
  •   Huang, Jianye (external author)
  •   Li, Hongbo (external author)
  •   Yang, Guomin
  •   Liu, Joseph (external author)

Publication Date


  • 2019

Citation


  • Cui, Y., Huang, Q., Huang, J., Li, H., Yang, G. & Liu, J. (2019). Ciphertext-Policy Attribute-Based Encrypted Data Equality Test and Classification. Gerontologist, 59 (3), 1166-1177.

Scopus Eid


  • 2-s2.0-85084390672

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/3977

Number Of Pages


  • 11

Start Page


  • 1166

End Page


  • 1177

Volume


  • 59

Issue


  • 3

Place Of Publication


  • United States

Abstract


  • © 2019 The British Computer Society 2019. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. Thanks to the ease of access and low expenses, it is now popular for people to store data in cloud servers. To protect sensitive data from being leaked to the outside, people usually encrypt the data in the cloud. However, management of these encrypted data becomes a challenging problem, e.g. data classification. Besides, how to selectively share data with other users is also an important and interesting problem in cloud storage. In this paper, we focus on ciphertext-policy attribute based encryption with equality test (CP-ABEET). People can use CP-ABEET to implement not only flexible authorization for the access to encrypted data, but also efficient data label classification, i.e. test of whether two encrypted data contain the same message. We construct an efficient CP-ABEET scheme, and prove its security based on a reasonable number-theoretic assumption. Compared with the only existing CP-ABEET scheme, our construction is more efficient in key generation, and has shorter attribute-related secret keys and better security.

Authors


  •   Cui, Yuzhao (external author)
  •   Huang, Qiong (external author)
  •   Huang, Jianye (external author)
  •   Li, Hongbo (external author)
  •   Yang, Guomin
  •   Liu, Joseph (external author)

Publication Date


  • 2019

Citation


  • Cui, Y., Huang, Q., Huang, J., Li, H., Yang, G. & Liu, J. (2019). Ciphertext-Policy Attribute-Based Encrypted Data Equality Test and Classification. Gerontologist, 59 (3), 1166-1177.

Scopus Eid


  • 2-s2.0-85084390672

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/3977

Number Of Pages


  • 11

Start Page


  • 1166

End Page


  • 1177

Volume


  • 59

Issue


  • 3

Place Of Publication


  • United States