A security-attribute-based access control along with user revocation for shared data in multi-owner cloud system

ABSTRACT Cloud storage is a cloud implementation that facilitates agencies to set up in-house information storage installations. Cloud storage actually creates security problems. When the information is communicated by groups; both cloud-specific and standard insider threats are visible. A key research problem is the secure sharing among group members, which confronts the internal threats of legitimate and malevolent users. In this paper, in this paper, an effective structured data sharing mechanism for user revocation in the multi-owner cloud system is proposed. The proposed method is based on the following five entities: data owner, cloud storage, central authority, and cryptographic server, and data users. The data owner will submit to cryptographic servers’ data, user list and parameters capable of generating an Access Control List (ACL). A trusted third party is a cryptographic server that provides the symmetric key that triggers the encrypted data. The cryptographic server then divides the key into three sections for each user within the group. Quantitative findings indicate the sustainability of the mechanism proposed in contrast with conventional schemes.