A Study on Encryption Techniques to Protect the Patient Privacy in Health Care Systems

Today’s emerging trends in the applications of wearable healthcare devices integrated with clouds and cloudlets technologies which strengthen the delivery of cost effective and high quality healthcare services. The Internet of Things (IoT), wearable devices, medical devices and healthcare systems provides the facilities to health care centers and doctors to monitor patient’s health at their homes using patient’s health data which is stored on cloud. Public area network is used to send data to cloud from healthcare devices, which is not secure. Opponent could read and change the data in the network during transmission. However, due to the heterogeneity, different characteristics and small size of smart wearable devices, specific method for the data protection with wearable device has not been yet established. Therefore to protect the privacy of patient’s data it needed access control mechanism based on encryption and cryptography. In this article, we review the different models, schemes as well as implementation related to data encryption and cryptography algorithms proposed by different researchers to secure smart wearable medical health care devices. To prevent the unauthorized access and securing the wireless communication as well as protect device integrity and data confidentiality Cryptography is the best approach.