Confidentiality Based Access Control Scheme in Cloud Based Services

Abstract

With the rapid development of the computer technology, cloud-predicated accommodations have become a sultry topic. Cloudbased accommodations not only provide users with accommodation, but additionally bring many security issues. Ergo, the study of access control scheme to bulwark users' privacy in cloud environment is of great paramountcy. In this paper, we present an access control system with privilege disseverment predicated on privacy auspice (PS-ACS).  In the PS-ACS scheme, we divide the users into personal domain (PSD) and public domain (PUD) logically. In the PSD, we set read and indite access sanctions for users respectively. The Key-Aggregate Encryption (KAE) is exploited to implement the read access sanction which ameliorates the access efficiency. A high degree of patient privacy is ensured simultaneously by exploiting an Amended Attribute-predicated Signature (IABS) which can determine the users’ indite access. For the users of PUD, a hierarchical attribute-predicated encryption (HABE) is applied to eschew the issues of single point of failure and perplexed key distribution.  Function and performance testing result shows that the PS-ACS scheme can achieve privacy aegis in cloud predicated accommodations