A Survey: Privacy Preserving Using Obfuscated Attribute In e-Health Cloud

Abstract

Cloud computing now a day’s provides numerous number of benefits to their users. As the Cloud infrastructure is not directly under control of user its seems to be difficult for user to have a better security. Other side as the number of user grow even it become more difficult to manage a data such a way that user needs for any data are satisfied efficiently. There are lots of chances to misuse the data of user. So, here Cloud providers need to balance this two fundamental of Privacy handling and efficient analysis of data together is become very important. When we talk about the health records of patient or medical firm and available on remote machine issue of privacy of record provided by the anonymization fundamental. Here various researcher provided a technique T- Closeness to achieve this goal. It also important to provide the security of stored data using obfuscation mechanism . Some time full obfuscation of file consume more time so many researcher provided scheme of attribute based obfuscation which lessen the burden of Cloud server by providing adequate security and also help to execute user query faster. In this paper we aim to provide survey on various fundamental given by the different researcher.