Authorized and Encrypted in Health Care Records Using Fine – Grained Access Control in Distributed System

Abstract

today, many applications are being developed in the medical field to overcome the complexities of previous research. The digitization of healthcare is enhanced using information technology and computing, providing a variety of new technologies and medical devices. While existing systems have seen many more advances to save patients time and money, provide accurate care, and keep sensitive patient records secure, the biggest significant issue is confidentiality. To address the current security concerns in order to develop and construct the prototype model for security research work. For sensitive patient health records on database web servers. Existing efforts only data encryption can protect patient records from insider threats. First, put in place front-end security in proposed research work using Key logging techniques, second to prevent insider attacks, store users or patient’s sensitive information or data across multiple data servers or chunks, and third, and most importantly, implement a multi-authority search policy for encrypted data. In the present research work is being added to securely clearly state the format of patient data records in multiple chunks (small pieces) and to use cryptosystems because of confidentiality of a patient's medical information’s. Specifically, proposed research task benefits to use the SHA hashing technique each user to allow access to specific data records. This study investigates the proposed Role Base Access Control (RBAC) and the proposed Advanced Encryption Algorithm (AES)-256 bit encryption techniques for secure data storage and sharing for end-user strategies for securing access to the data. This work also included the implementation of a backup server strategy, which functions as an all distributed data servers use an ad hoc network data recovery for proxy storage server. We talked about the data protection for a medical database and identified which entities could and could not access the database. We discussed several encryption schemes, especially proxy re-encryption based, and signature Techniques such as the bilinear aggregate authentication protocol are examples of such strategies, that can be used to ensure data confidentiality and integrity. A secure medical database prototype was created, developed and tested to make a comparison the security performance of and insecure medical databases. Our contributions include a theoretical discussion of medical database security, the development the development of a proposed design to represent a secure medical database, and the outcomes of some studies were performed we carried out. This work shows that ensures the integrity and confidentiality of a medical database has a significant impact on performance. The prototype is relatively slow, but should have little real-world impact. If he only has to wait a second for a doctor to retrieve patient information, instead of milliseconds for an insecure the security implications of a medical database exceed the performance impact. Additionally, as part of the decryption process, by employing a re-encryption strategy, i.e. Re-encryption can be assigned to a proxy, thus spreading the computational cost. Furthermore, we showed that the prototype scales linearly, an important property when backing up large databases. From this we can conclude that it is possible to secure a medical database without trusting the database itself.