A Novel LC-DEH Algorithm to Enhance Efficiency and Security for Reliable Data Transmission in Blockchain with IoT-Based Healthcare Systems

Abstract

The Internet of Things (IoT) is a recent growing technology in modern healthcare applications. Security is the most problematic aspect of IoT-based patient monitoring systems due to IoT's centralized architecture. It also faces issues like collection, a large number of various devices being used, and quality estimation. Blockchain-based IoT healthcare applications enhance security and privacy compared to centralized healthcare applications. Blockchain with IoT is a modern technology due to its special characteristics such as decentralization, transparent communication, maximized storage, and unchangeable information. This chapter presents an overview of blockchain technology and IoT including features, applications, and security issues. It also discusses the benefits and practical security issues in blockchain with IoT-based patient monitoring systems. A cryptography hash algorithm is significant to eliminate many security issues in blockchain-based healthcare. This algorithm uses a secret key and a public key to protect the information from an intruder. Even though various hash algorithms have been developed so far for solving the security issue, it requires an efficient hash algorithm to enhance the security and accuracy for reliable data transmission. For that reason, this chapter introduces lightweight cryptography and double encryption hash algorithm (LC-DEHA) to protect the secret key and public key. The performance of the proposed algorithm is experimentally analysed with various cryptography hash techniques for deployment in IoT in metrics of response time and efficiency. From this analysis, the proposed algorithm is used to enhance security and efficiency with the reduced response time.