An overview of Secure Communication in Smart Cities: Issues and Cryptographic Solution

Smart cities are one of the core infrastructures of the Modern World. The primary goal of smart cities is to improve the quality of life of people and services. Internet of Things (IoT) devices and information and communication technology are the primary building blocks of smart city infrastructure (ICT). ICTs and IoT devices have prompted many privacy concerns about communication in smart cities. The current study attempts to illustrate the fundamental ideas of security issues that address smart cities and reveal previously unknown cyber-attacks based on existing literature and recent targeted smart cities. Further, this study has uncovered and elaborated on several security issues. Cryptography is one of the most prominent methods for securing all types of communication. We have focused on all possible cryptographic concepts used in IoT security and smart cities scenario. It will also assist incoming researchers in formulating their proposals for developing robust security protocols to serve end users better.