A New Hybrid Cryptosystem for Internet of Things Applications

The Internet of Things or ‘‘IoT’’ defines a highly interconnected network of heterogeneous devices where all kinds of communications seem to be possible. As a result, the security requirement for such network becomes critical whilst these devices are connected. Today, all commercial applications will be performed via Internet; even the office environment is now extending to employ’s home. This chapter presents a new proposed cyber security scheme for IoT to facilitate additional level of security through the involvement of a new level of key-hierarchy. In this chapter, we present the closed system environment, the proposed scheme, the services provided, the exchange of message format, and the employed four level key-hierarchies. We use application level security for selectively securing information to conserve power and increase computational speed which is useful for IoT and wireless applications. The analysis of the proposed scheme is discussed based on the strength of symmetric algorithms such as RSA and AES algorithms.

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