Enhancing IoT Security with Cryptographic Approach

The Internet of Things (IoT) is advancing every business in today’s smart world. IoT provides interaction between the physical and digital worlds and transforms businesses. A network of physical objects with sensors, radio-frequency identification, intelligent networking, and other technologies that connect and share information with other online systems and devices is known as the IoT. Data security in IoT is one of the prime objectives for data communications in an environment of increasing data thefts and malicious attacks. With an ever-increasing and vast amount of sensitive data being transmitted over communication channels, cryptography has assumed an essential role in data security. Several important encryption algorithms exist that are designed to secure data, as well as to ensure the confidentiality and authentication of the data. Data sent through the computer network can get compromised for several reasons, including malicious attacks by hackers. For the ever-expanding IoT network, cryptography is a reliable security solution. It is critical to monitor how the security solution algorithm evolves. This chapter gives insights into lightweight cryptographic algorithms designed for security and privacy in embedded systems, the IoT, resource-constrained applications, and cyber-physical systems such as radio-frequency identification systems, wireless sensor networks, automotive ad hoc networks, and healthcare. It also analyzes the role of cryptographic techniques in securing IoT networks and evaluates the effectiveness of various encryption algorithms in mitigating cyber threats. It explores the challenges of implementing cryptographic solutions in resource-constrained IoT environments and highlights potential improvements for enhancing security. By assessing different cryptographic approaches, this study aims to contribute to the development of more robust and efficient security mechanisms for IoT applications.