Open AccessAttribute-Based Privacy-Preserving Data Sharing for Dynamic Groups in Cloud Computing
Author(s) -
K. V. Uma Maheswari,
Dhanaraj Cheelu
Publication year - 2021
Publication title -
international journal of scientific research in computer science, engineering and information technology
Language(s) - English
Resource type - Journals
ISSN - 2456-3307
DOI - 10.32628/cseit2172846
Subject(s) - cloud computing , group signature , broadcast encryption , computer science , revocation , encryption , data sharing , computer security , overhead (engineering) , information privacy , computer network , distributed computing , public key cryptography , medicine , alternative medicine , pathology , operating system
Cloud computing is recognized as an alternative to traditional information technology due to its intrinsic resource sharing and low maintenance characteristics. Cloud computing provides an economical and efficient solution for sharing group resource among cloud users. Unfortunately, when sharing the data in a group while preserving data, identity privacy is still a challenging issue due to frequent change in membership. In overcome this problem, a secure data sharing scheme for dynamic groups is proposed so that any user within a group can share the data in a secure manner by leveraging both the group signature and dynamic broadcast encryption techniques. It should enable any cloud user to anonymously share data with others within the group and support efficient member revocation. The storage overhead and encryption computation cost are dependent on the number of revoked users.