Securing IoT in Smart Cities using Chaos

Full playlist: https://www.youtube.com/playlist?list=PL9y6bivP9mhEXxZGThfzyIJEZp5-BakCi MATLAB codes: https://uk.mathworks.com/matlabcentral/fileexchange/?q=profileid%3A28825692 Moysis, L., Lawnik, M., Volos, C., & Fragulis, G. F. (2025). Securing IoT technologies for smart cities-can chaos be the answer? In Enabling Technologies for Sustainable Smart Cities: Design, development and management (pp. 203 - 221). IET. https://www.researchgate.net/publication/396131024_Securing_IoT_technologies_for_smart_cities_-_can_chaos_be_the_answer https://digital-library.theiet.org/doi/10.1049/PBBE009E_ch9 Chaos theory studies how small changes in initial conditions can lead to vastly different outcomes in certain systems, making long-term prediction nearly impossible. It’s often illustrated by the “butterfly effect,” where something as tiny as a butterfly flapping its wings could, in theory, influence weather patterns weeks later. Despite appearing random, chaotic systems follow underlying deterministic rules—they’re just incredibly sensitive, so their complexity hides their order. Chaos-based encryption is a cryptographic technique that leverages the unpredictable and sensitive nature of chaotic systems to secure data. Unlike traditional encryption methods that rely on complex mathematical structures such as large prime factorizations or elliptic curves, chaos-based encryption uses nonlinear dynamical systems whose behavior is highly sensitive to initial conditions. A small change in the input or parameters leads to vastly different outputs, making it extremely difficult for an unauthorized party to reverse-engineer the encryption without precise knowledge of the system's initial state. These methods are often used in multimedia encryption, such as image, video, and audio protection, due to their speed and efficiency in processing large volumes of data. By using chaotic maps—such as the logistic map, Lorenz system, or newer ones—chaos-based encryption can generate pseudo-random sequences that scramble and diffuse information effectively. Chaos-based encryption is still an evolving field with many open problems regarding standardization, key management, and resistance to various cryptanalytic attacks. Smart cities are urban areas that use technology and data to improve the quality of life for residents, enhance sustainability, and optimize city operations. They use sensors, connected devices (the Internet of Things), and data analytics to manage resources efficiently—such as energy, water, transportation, and waste. For example, smart cities might use intelligent traffic lights to reduce congestion, smart grids to save energy, or real-time data to improve public safety and environmental monitoring. The overall goal is to make cities more efficient, livable, and environmentally friendly. Social: https://www.linkedin.com/in/moysislazaros/ https://www.researchgate.net/profile/Lazaros-Moysis #chaos #chaostheory #encryption #iot #smartcity #cryptography #datasecurity #security #physics #mathematics #stem #dynamics #dynamicalsystems #cryptography #chaotic #nonlineardynamics #nonlinear #computerscience #science #physicseducation #butterflyeffect #mathematics #prbg #programming #bit #nonlinearsystems #prng #appliedmathematics