Complex Approach in Cryptanalysis of Internet of Things (IoT) Using Blockchain Technology and Lattice-Based Cryptosystem

In the given paper, we offer complex approach to secure The Internet of Things (IoT). IoT turns each physical object into a smart object sensing the environment surrounding us and brings new security risks in business sector, healthcare and in all the aspects of human life. The exponentially growing numbers of devices connected to IoT networks makes very hard to authenticate and secure all these devices within IoT network. It’s very difficult to maintain and manage a centralised IoT security model which is prone to failure and DDoS attacks. Wi-Fi technology is one of the leading technology. Wi-Fi uses radio waves prone to eavesdropping. WPA2 protocol security issues discovered recently by Computer Scientists and WPA3 has been developed to improve Wi-Fi security aspects but in a new WPA3-Personal protocol have been found the vulnerabilities allowing intruders to crack Wi-Fi passwords and intercept encrypted traffic sent between the Wi-Fi users. Blockchain mechanisms (BCMs) play a role in securing many IoT-oriented applications by becoming part of a security mosaic, in the context of a defenses-in-depth/Castle Approach. A blockchain is a database that stores all processed transactions – or data – in chronological order, in a set of computer memories that are tamperproof to adversaries. These transactions are then shared by all participating users. Information is stored and/or published as a public ledger that is infeasible to modify; every user or node in the system retains the same ledger as all other users or nodes in the network. This paper highlights some IoT environments where BCMs play an important role, while at the same time pointing out that BCMs are only part of the IoT Security (IoTSec) solution. We highlight blockchain’s important role for securing IoT. Cryptography technologies are the best solution to withstand communication attacks. We analyse NTRU cryptosystem capable to implement the NTRUEncrypt public key encryption algorithm withstanding the attacks from the quantum computers.