A trusted and efficient cloud computing service with personal health record

While personal health record service is to be shifted to cloud computing, successful factors can be security and privacy protection and service efficiency. In this study, we propose a framework coherently employing the symmetric key cryptography and identity-based cryptography that offers a secured, private and full access control of relevant data to the owners of the personal health records, without sacrificing the cloud service performance. Moreover, the proposed framework is implemented as a separated cloud computing service in order to have better user trusts.