As cloud computing technology matures, along with an increased application of distributed networks, increasingly larger amounts of data are being stored in the cloud, and are thus available for pervasive application. At the same time, current independent medical record systems tend to be inefficient, and most previous studies in this field fail to meet the security requirements of anonymity and unlinkability. Some proposed schemes are even vulnerable to malicious impersonation attacks. The scheme proposed in this study, therefore, combines public and private clouds in order to more efficiently and securely preserve and manage electronic medical records (EMR). In this paper, a new secure EMR authorization system is proposed, which uses elliptic curve encryption and public-key encryption, providing a health care system with both public and private cloud environments with a message authentication mechanism, allowing the secure sharing of medical resources. The analysis shows that the proposed scheme prevents known attacks, such as replay attacks, man-in-the-middle attacks and impersonation attacks, and provides user anonymity, unlinkability, integrity, non-repudiation, forward and backward security.
With the development of network environment and hardware technology, smart devices therefore have become very popular tools. Nowadays, smart facilities are very common in our daily lives. For example, smart refrigerators, smart air conditioners, smart home, smart cities and a large number of applications of Internet of Things have been used. The concept and technology of Internet of Things are being carried out in full swing. Internet of Things in the personal care is one of the concern topics. In order to prevent malicious attacks, resulting in the leakage of patient data, the security of Internet of Things is important. Review the related works about health care service. We found that their article lack of complete security mechanism, therefore we proposed a new architecture which is an IoT-based authentication scheme for personal health care system. In the proposed scheme, doctors can get patients' health status from wearable devices of patients. We complete the goal of electronic medical record sharing. Our scheme can achieve anonymity, mutual authentication, non-repudiation. It can also against forgery attack.
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