Design Advancements in Light-weighted Symmetric Encryption for IoT applications on FPGA: Focusing on AES and DES Derivatives

The number of devices interconnected to share information in the Internet of Things (IoT) has seen an exponential rise in recent years. With the increase in complexity of the IoT network, the security of data is a major concern. Though strong security algorithms are available for conventional networking systems, these may not be directly used for IoT applications as resources are limited. Light-weight security algorithms are required for IoT applications. There are symmetric and asymmetric algorithms that are proposed from time to time by researchers to achieve a higher order of security, but these algorithms have to meet the requirements of resource-constrained devices at the IoT edge. This paper presents an overview of various research published in recent years, proposing the derivatives of symmetric algorithms using Rijndael-Cipher and Feistel-Cipher Structures. In conclusion, a proposal is also presented based on key generation that may be used to design a light weight security algorithm.