A Review on Cloud Cryptography Techniques to Improve Security in E-health Systems

In last few years there has been a rapid growth of innovation in Information Technology which provided a better wellbeing and development in Health care system to adopt E-health. Cloud cryptography is the one which is efficient for storing and accessing the patient data in cloud. Even though the cloud computing application has various benefits for healthcare there will be always a security and technology threat that arises over time. As the security and privacy are served as a main priority in the health care system, it is the need of the hour to address the issues in Patient registration, health care center availability, patient data upload, treatment phase, checkup phase and emergency phase. The paper provides analytical review and solution to strengthen the security in cloud database using cryptography, block chain and other technologies. The study also describes the practical challenges and security threats possessed in the database of patients in existing systems. Cryptography in cloud is a good and efficient way that allows securing the data and protection of sensitive data which is present over the cloud. A detail study has been done on the existing systems, and an analysis has been performed to list down the features that are causing the existing cloud systems to lag or fail on large scale while implementation. A model has been proposed based on the review factors which would hopefully be able to eliminate the lacking elements of the existing models.