Privacy-preserving public auditing together with efficient user revocation in the mobile environments

Abstract

Cloud platforms can provide elastic infrastructure for mobile users. Therefore, publicly auditing the integrity of shared data outsourced on the cloud is very important since the cloud may be untrusted. However, existing remote integrity checking protocols can not preserve owner’s privacy nor provide efficient user revocation. In this paper, we analyze a previous work, and improve the protocol to get better user revocation efficiency and preserve the users’ privacy against the untrusted cloud platform and the auditor.