Journal on Communications ›› 2017, Vol. 38 ›› Issue (3): 83-91.doi: 10.11959/j.issn.1000-436x.2017068

• Papers • Previous Articles     Next Articles

Multi-authority attribute-based encryption with efficient revocation

Kai ZHANG1,Jian-feng MA2,Hui LI2,Jun-wei ZHANG2,Tao ZHANG3   

  1. 1 School of Telecommunications Engineering,Xidian University,Xi’an 710071,China
    2 School of Cyber Engineering,Xidian University,Xi’an 710071,China
    3 School of Computer Science and Technology,Xidian University,Xi’an 710071,China
  • Revised:2017-01-23 Online:2017-03-01 Published:2017-04-13
  • Supported by:
    The National High Technology Research and Development Program (863 Program)(2015AA016007);The National Natural Science Foundation of China(U1405255);The National Natural Science Foundation of China(61472310);The National Natural Science Foundation of China(61602365)

Abstract:

Multi-authority attribute-based encryption was very suitable for data access control in a cloud storage environment.However,efficient user revocation in multi-authority attribute-based encryption remains a challenging problem that prevents it from practical applications.A multi-authority ciphertext-policy attribute-based encryption scheme with efficient revocation was proposed in prime order bilinear groups,and was further proved statically secure and revocable in the random oracle model.Extensive efficiency analysis results indicate that the proposed scheme significantly reduce the computation cost for the users.In addition,the proposed scheme supports large universe and any monotone access structures,which makes it more flexible for practical applications.

Key words: attribute-based encryption, multi-authority, revocation, large universe

CLC Number: 

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