Performance Analysis of AES and DES Algorithm for Encrypting Medical Record Using Blockchain

Secure storage and exchange of health information has emerged as a focus of research in the area of medical technology. The healthcare sector has a high requirement for data security and privacy because most of the healthcare systems maintain data in a centralized manner, storing it all in a single location. Such systems have a significant probability of allowing an anonymous user to access and alter the data, which frequently results in data leakage problems and lack of transparency. In the proposed work, the blockchain technology is used which is a decentralized and distributed ledger that enhances the data security by storing the record on blocks and encryption algorithm to encrypt the data. Here patient is allowed to provide the access permission for the record. An advanced encryption standard (AES) and data encryption standard (DES) algorithm is used for encryption and its encryption time is compared and represented in graph. The objective of this work is to do the performance analysis between algorithms and to represent the faster encryption algorithm.