Secure Identity Based Encryption Without Random Oracles

Authors: D. Boneh and X. Boyen

We present a fully secure Identity Based Encryption scheme whose proof of security does not rely on the random oracle heuristic. Security is based on the Decision Bilinear Diffie-Hellman assumption. The system shows that, in principle, identity based encryption is possible without the random oracle model.

In proceedings of Crypto '04, LNCS 3152, 2004

Full paper: pdf         [first posted 6/2004 ]

Related papers: The construction in this paper is based on the construction in [BB04].