Design and Development of an Efficient Security Scheme for Distributed IoT Networks based on Blockchain and Cellular Automata

Abstract

Internet of Things (IoT) made an impact worldwide in recent years by changing the newlinemode of day to day life. It contributes to almost all areas, beginning from the basic newlineapplications of a common man and extends upto critical areas such as battlefields in newlinemilitary applications. Hence, it is unavoidable to protect the data that are being evolved, newlinetransmitted and accessed in IoT applications. The data collected by the sensors are newlineprocessed to produce useful information. A lot of research works have been done to newlineprovide protection in IoT based systems. But, existing algorithms in such networks are newlinenot considering and ensuring all the security objectives. Starting from the sensing of newlinedata from IoT environment, the data have to be protected from several types of attacks. newlineAlso, the authentication of involved entities, integrity of data, access control and newlineconfidentiality are to be achieved. This work proposes a novel security architecture for newlineIoT-based distributed applications. The architecture uses the best known lightweight newlinecipher ChaCha-20. More security and randomness are attained by applying principles newlineof cellular automata for the random number generation. Multilevel protection of data is newlineensured by double encryption during the data uploading and storing phases. The method newlineis also proved to be secure by providing encryption based on dynamic session keys. Internet of Things (IoT) made an impact worldwide in recent years by changing the newlinemode of day to day life. It contributes to almost all areas, beginning from the basic newlineapplications of a common man and extends upto critical areas such as battlefields in newlinemilitary applications. Hence, it is unavoidable to protect the data that are being evolved, newlinetransmitted and accessed in IoT applications. The data collected by the sensors are newlineprocessed to produce useful information. A lot of research works have been done to newlineprovide protection in IoT based systems. But, existing algorithms in such networks are newlinenot considering and ensuring all the security objectives.