标题：Isolation in Cloud Computing and Privacy-Enhancing Technologies Suitability of Privacy-Enhancing Technologies for Separating Data Usage in Business Processes
摘要：Cloud Computing lifts the borders betweenthe access control domain of individuals’and companies’ IT systemsby processing their data within the applicationframeworks and virtualizedruntime environments of Cloud serviceproviders. A deployment of traditionalsecurity policies for enforcing confidentialityof Cloud users’ data wouldlead to a conflict with the availabilityof the Cloud’s software services: confidentialityof data would be assured butCloud services would not be availablefor every user of a Cloud. This stateof-the-art contribution shows the analogyof the confidentiality of externaldata processing by Cloud services withmechanisms known and applied in privacy.Sustainability in Cloud is a matterof privacy, which in Cloud is called “isolation”.
关键词：Cloud computing; Disclosure of personal data to third parties; Isolation; Privacy; Usage control; Delegation of rights
