Efficient Selective Identity-Based Encryption Without Random Oracles
Authors: D. Boneh and X. Boyen
Abstract:
We construct two efficient Identity Based Encryption (IBE) systems
that are selective identity secure without the random oracle
model Selective identity secure IBE is a slightly weaker security
model than the standard security model for IBE. In this model the
adversary must commit ahead of time to the identity that it intends to
attack, whereas in the standard model the adversary is allowed to
choose this identity adaptively. Our first secure IBE system extends
to give a selective identity Hierarchical IBE secure without random
oracles.
Reference:
Journal of Cryptology (JOC), 24 (4):659-693, 2011.
Extended abstract in proceedings of Eurocrypt 2004, LNCS 3027, pp. 223-238, 2004
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Full paper: pdf [first posted 6/2004 ]