Fine-Grained Access Control Aware Multi-User Data Sharing with Secure Keyword Search

Fangming ZHAO  Takashi NISHIDE  Kouichi SAKURAI  

IEICE TRANSACTIONS on Information and Systems   Vol.E97-D   No.7   pp.1790-1803
Publication Date: 2014/07/01
Online ISSN: 1745-1361
DOI: 10.1587/transinf.E97.D.1790
Type of Manuscript: PAPER
Category: Information Network
cryptographic cloud storage,  multiple users,  access control,  encrypted keyword search,  

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We consider the problems of access control and encrypted keyword search for cryptographic cloud storage in such a way that they can be implemented for a multiple users setting. Our fine-grained access control aware multi-user secure keyword search approach interdependently harmonizes these two security notions, access control and encrypted keyword search. Owing to the shrinkage of the cloud server's search space to the user's decryptable subset, the proposed scheme both decreases information leakage and is shown to be efficient by the results of our contrastive performance simulation.