Secure and Efficient Item Information Retrieval in Cloud Computing

Cloud computing is a promising information technique (IT) that can organize a large amount of IT resources in an efficient and flexible manner. Increasingly numerous companies plan to move their local data management systems to the cloud and store and manage their item information on cloud servers. For protecting data privacy, sensitive data has to be encrypted before outsourcing. An accompanying challenge is how to protect the security of the commercially confidential data, while maintaining the ability to search the data. Privacy is the protection for the truthful use of personal information of cloud user. In this paper, privacy-preserving data search scheme is proposed, that can support both the identifier-based and feature-based item searches. This scheme is designed to ensure that only legitimate users based on identifiers or keywords, and have the ability to search the data.