Maintaining Health Care Records By Efficient Privacy Preservation Techniques

Abstract

To improves efficiency, reliability, and economics proxy re-encryption is an Intermediate Server. It is mainly used to maintain sensitive information. The stored information are managed by cloud provider, to avoid hackers to hack that information. Here we performs two level encryption in proposed proxy re-encryption technique before actual data store in cloud , for using this technique we need two server one-local server another -cloud server. Cloud server manages index key because it is less secure, and it contains only searchable keywords, local server manages privacy key because it is more secure only known to data owner, and it contains all privacy information. Use Re-identification for more security.