Chinese Journal of Network and Information Security ›› 2019, Vol. 5 ›› Issue (1): 15-21.doi: 10.11959/j.issn.2096-109x.2019002

• Special Column:Technology Research and Application Exploration on Attack and Defense of Cryptology • Previous Articles     Next Articles

Attribute-based encryption schema with group signatures

Xinglan ZHANG,Yao CUI()   

  1. Department of Information,Beijing University of Technology,Beijing 100124,China
  • Revised:2018-12-28 Online:2019-02-01 Published:2019-04-10

Abstract:

Cipher text-policy attribute-based encryption schema(CP-ABE) is widely used in protection of sensitive data.In CP-ABE,When the users access the cipher text,the access structure and the cipher text were sent to the users.However,the access structure is also has private information which can lead to leak of the privacy.The group signatures were used in CP-ABE to realize protection of the privacy.What’s more,it can satisfy indistinguishable under the choice of plaintext attack.

Key words: attribute-based encryption, group signatures, access structure, leak of the privacy

CLC Number: 

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