Abstract
As the Internet of Things (IoT) is growing exponentially, the number of data shared between IoT devices is increasing at an exponential rate. Almost all IoT devices are battery concerned devices in which power is very low, and these devices are interconnected and communicated to perform certain tasks, and also to transmit confidential and sensitive data over a communication channel. The IoT now enables power-restricted systems for communication, processing, and communication decisions. In stratified IoT networks, there are many problems and challenges, including protection, cheap power usage in computers, restricted battery size, memory space, high efficiency, and minimal communication network latency. We address in this paper a state-of-the-art lightweight cryptographic algorithm that includes lightweight block ciphers, hash functions, stream ciphers, high-performance systems, and low power-constrained devices and IoT network tools in detail. The lightweight cryptography algorithms are evaluated based on key size, block size, round size, and structure. We also explore the security framework, challenges, and key solutions for the power-constrained device of the IoT system.
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