High-Performance Authentication and Efficient Block Creation: Ethereum

At present, there is rapid growth in storing data online. Online data storage enables users to access their information anywhere and anytime. However, this can lead to some security issues, which can be handled today using Blockchain. Numerous researchers have worked on various blockchain application domains, including supply chain management, the medical industry, governance, etc. In addition to these applications, many issues still need research, such as security, privacy, performance, scalability, etc. As part of our research, we are focusing on a blockchain-based medical application field. The concept is based on the Internet of Things (IoT) and Blockchain, where we employ wearable devices to read user data like blood pressure, heartbeat, and temperature. However, anyone can wear this wearable device which comes up with the problem that it is optional that the data we are storing comes from a valid user. Secondly, we need fast access to data stored in Blockchain, but as the block creation takes 10-12 seconds, we suffer from some delay in response time. In our work, we proposed solutions to these two problems by using authentication while storing data and reduction in the Block creation time.