EGECC-MAES: Lightweight hybrid encryption algorithm in blockchain for smart health care in the Internet of Things platform

In recent years, health care Internet of things has become one of the most important and vital technologies for human health care needs. But the security challenge in this technology has made it unreliable. Research shows that blockchain with a decentralized approach and high security can improve the problems and limitations of communication devices in combination with the Internet of Things. Blockchain provides security using strong encryption techniques. The encryption technique presented in this article is a combination of symmetric and asymmetric encryption, which is as light as possible and can overcome the limitations of Internet of Things devices while providing high security. It is also effective in reducing energy consumption and time and data transfer calculations. According to the comparison and evaluation of the functional criteria of the obtained results, the presented method shows its high efficiency compared to other methods.