Securing Healthcare Data by Providing Identity Based Access Control and PKI System Using Time Domain Attribute

Abstract

One of the most prominent barrier of public key infrastructure (PKI) usage is the dependence of sharing the keys among users. We have developed a new security model for telemedicine system which implements an encryption scheme for securing sensitive health care information using PKI, but without sharing the keys. We have used time domain attribute to increase the security and reliability of the data. Also an efficient and novel access control system, based on authenticating the user identities of the users who want to access the data, is tested. This access control method also guarantees the integrity of the data that is shared among users. The identities are hashed and encrypted using symmetric key algorithm.