Identity Based Key Encapsulation with Wildcards

Abstract

We propose a hybrid (KEM/DEM) model for the recently proposed primitive of identity-based encryption with wildcards (WIBE), and confirm that the hybrid construction is secure. We also propose new chosenciphertext secure WIBE schemes that have somewhat more efficient security reductions and some performance benefits. Our first construction is a generic one from any one-way secure WIBE in the random oracle model, the second is a direct construction in the standard model.

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Cite this paper

@inproceedings{Birkett2008IdentityBK, title={Identity Based Key Encapsulation with Wildcards}, author={James Birkett and Alexander W. Dent and Gregory Neven and Jacob C. N. Schuldt}, year={2008} }