Privacy protection scheme for cloud computing

Privacy protection is a key challenge in cloud computing. Existing schemes mostly focus on user data protection rather than personally identifiable information protection. This paper presents an implicit data partitioning scheme based on confusion for user data protection. For identifiable information protection, this paper presents a cloud storage architecture based on Trust Server (TS) concept, which the isolates the data storage and the personal information management. The cloud server decides whether customers have the right to store personal data according to the storage authentication code provided the trust server. Storage of the customers' identifiable information onto trust servers effectively protects the private information.