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In this paper we discuss the suitability of Identity Based (IDB) Cryptosystems to solve privacy and security issues in Machine to Machine (M2M) communications for Internet of Things (IoT) applications. Present day Information and Communication Technology is driven by smart digital devices connected to each other via Internet. The purpose of IoT is to control or access these smart digital devices through the Internet securely. So for this, we suggest IDB which is essentially certificate less. This interesting concept was first developed by Shamir 15 for Identity based signature scheme. Later on Boneh and Franklin et.al 11 extended this concept to develop schemes for encryption and decryption based on Weil pairing on elliptic curves. Presently IDB has emerged as an international standard (IEEE 1363.3).
Adiga et al. (Fri,) studied this question.