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Secure identity based encryption without random oracles. (English) Zbl 1104.94019
Franklin, Matt (ed.), Advances in cryptology – CRYPTO 2004. 24th annual international cryptology conference, Santa Barbara, California, USA, August 15–19, 2004. Proceedings. Berlin: Springer (ISBN 3-540-22668-0/pbk). Lecture Notes in Computer Science 3152, 443-459 (2004).
Summary: 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. This solves an open problem posed by Boneh and Franklin in 2001.
For the entire collection see [Zbl 1058.94002].

94A60 Cryptography
94A62 Authentication, digital signatures and secret sharing
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