Enhanced Identity Based Cryptography for Efficient Group Key Management in WSN

ABSTRACT Ever since Shamir first introduced the Identity Based Cryptography (IBC), it has attracted researchers significantly. In Traditional Public Key Infrastructure (PKI), the public key could not implicitly be related to the identity of the user. IBC can get rid of certificates besides making the key management simple. As the traditional PKI is time-consuming and error-prone, IBC can reduce such barriers by relying on a trusted third party known as Private Key Generator (PKG). ID-based cryptography enables users to use a publicly known identity such as email as public key without the need for exchanging public key certificates. Most of the existing IBS schemes are based on bilinear nondegenerate maps which are the underlying mathematical functions and they are computationally efficient. Recently Nicanfar and Leung proposed Enhanced Identify Based Cryptography (EIBC) for efficient key management. In this paper we propose a mathematical model for enhanced identity based cryptography towards multicast group key management which can be used in various real world applications. Our simulation results reveal that the proposed scheme is highly secure. We intend to improve it further to make it robust multi level identity based cryptography for secure digital signature authentication.