Journal on Communications ›› 2017, Vol. 38 ›› Issue (Z1): 88-96.doi: 10.11959/j.issn.1000-436x.2017240

• Papers • Previous Articles     Next Articles

Research on cloud storage systems supporting secure sharing

Yan SONG1,2,Zhen HAN1,Jian-jun LI2,Lei HAN1,2   

  1. 1 Beijing Key Laboratory of Security and Privacy in Intelligent Transportation,Beijing Jiaotong University,Beijing 100044,China
    2 Science and Technology on Information Assurance Laboratory,Beijing 100072,China
  • Online:2017-10-01 Published:2018-06-07
  • Supported by:
    The National Natural Science Foundation of China(61502030);The National Natural Science Foundation of China(61672092);Innovation Foundation of Science and Technology on Information Assurance Laboratory(61421120401)

Abstract:

A practical scheme for the cloud storage system was proposed to ensure security and efficiency during data sharing.The scheme which combine attribute-based encryption,proxy encryption with symmetric encryption,could integrate access control,efficient search with encryption well together.The scheme archived conjunctive-keyword non-field subset search by using bilinear mapping and polynomial equation.The scheme reduced the cost of decryption by outsourcing most of the decryption operations from the terminal to the cloud.At last,the performance was analyzed and an experiment was made for verification.

Key words: cloud storage, attribute-base encryption, searchable encryption, decryption outsourcing

CLC Number: 

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