An Improved ID Based Entitled Verifier Cryptography for Grid Systems

Identity based cryptography offers an extremely bright alternative to public key based cryptography in the grid computing scenario. A majority of the current security architecture for grid systems use public key infrastructure based security to authenticate grid members and to secure resource allocation to them. In this paper we present identity based cryptography for the grid architecture which, not only supports the standard services like single sign on, authorization, mutual authentication and delegation but also signatures meant for a particular entitled verifier. The scheme is highly efficient as compared to the previously proposed schemes as it uses the pairing operations very judiciously. Identitybased cryptography significantly reduces the system complexity and the cost for establishing and managing the public key authentication framework known as Public Key Infrastructure or in short commonly referred to as PKI.