information retrieval in the cloud

Job ID: 33760112

Budget: $10 – $30 USD

Introduction: information retrieval in the cloud
With the rapid growth of internet information service, cloud computing has become a prevalent method of delivering software, data storage, and computing services. In particular, more and more sensitive information are being transferred to cloud. However, in most public cloud dominant architectures, it is cloud service provider (CSP) that manages and holds users’ data, raising a great concern for privacy of data due to the lack of mutual trust between the data owner and CSP. In order to protect privacy, confidential files are usually encrypted prior to out-sourcing. Such a move, while alleviating the worry about information safety, have created a need for retrieving encrypted files. Data owners often find it necessary to share their outsourced data with a large number of users, who then have to retrieve the documents from the cloud.