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Recent Patents on Engineering


ISSN (Print): 1872-2121
ISSN (Online): 2212-4047

Research Article

A New User-controlled and Efficient Encrypted Data Sharing Model in Cloud Storage

Author(s): Yuezhong Wu, Wei Chen*, Shuhong Chen, Guojun Wang and Changyun Li

Volume 13, Issue 4, 2019

Page: [356 - 363] Pages: 8

DOI: 10.2174/1872212113666190215143537

Price: $65


Background: Cloud storage is generally used to provide on-demand services with sufficient scalability in an efficient network environment, and various encryption algorithms are typically applied to protect the data in the cloud. However, it is non-trivial to obtain the original data after encryption and efficient methods are needed to access the original data.

Methods: In this paper, we propose a new user-controlled and efficient encrypted data sharing model in cloud storage. It preprocesses user data to ensure the confidentiality and integrity based on triple encryption scheme of CP-ABE ciphertext access control mechanism and integrity verification. Moreover, it adopts secondary screening program to achieve efficient ciphertext retrieval by using distributed Lucene technology and fine-grained decision tree. In this way, when a trustworthy third party is introduced, the security and reliability of data sharing can be guaranteed. To provide data security and efficient retrieval, we also combine active user with active system.

Results: Experimental results show that the proposed model can ensure data security in cloud storage services platform as well as enhance the operational performance of data sharing.

Conclusion: The proposed security sharing mechanism works well in an actual cloud storage environment.

Keywords: Ciphertext access control, ciphertext retrieval, data confidentiality, cloud storage, trusted third party, full-text retrieval.

Graphical Abstract
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