FibGeoPresent: A Highly Secured and Geographic Coordinate System Based Authenticated Lightweight Block Cipher for Smart System

Lightweight Cryptography is a constituent of cryptography that is applicable in the Internet of Things (IoT) platform. IoT is a promising technology with an embedded device that assembles collection of objects. Such objects can be smart devices, computers, humans and etc., that connect together using the internet and can communicate with each other for information sharing. However, smart devices are lightweight, resource-restricted devices, such as limited memory, processing speed and limited key size. The IoT has many problems and challenges due to the inherent features of smart devices. Security and privacy are one of the key concerns in IoT since devices exchange data in open wireless network and an attacker can easily access the network and performs different types of malfunctions such as viewing and modifying the valuable data. In order to solve these issues, a variety of cryptographic algorithms have been proposed and each one has its own characteristics. Based on the investigation of cryptography algorithms, there is a need to construct a cipher known as FibGeoPresent, a lightweight block cipher. The proposed cipher was compared to the existing cipher over different metrics. The results of the evaluation show that the proposed cipher is directly applicable and ensures security in lightweight devices.