CONJUNCTIVE KEYWORD SEARCH ON E-HEALTH RECORDS BASED 0N K-ANONY-MIZATION TECHNIQUE

Abstract

An electronic health care system greatly enhances the patient healthcare records which are stored in the cloud server. Searchable encryption scheme is used which enhances the search mechanism. Conjunctive keyword search helps the authorized users to access the records by giving multiple keywords, so that it becomes difficult for the attackers to guess the keyword and retrieve the records. Re-encryption scheme provides more security to the records by re-encrypting the encrypted index before uploading them into cloud server. Since the patient’s healthcare records consist of sensitive information, it may be inconvenient for the patient when his records are accessed by everyone. To overcome the problem in our proposed work we introduce the concept called K-Anonymity which is used so that it gives only a partial access to the authorized users by using two methodologies suppression and generalization. This has
been very efficient in the standard model