, Volume 21, Issue 2, pp 178-199
Date: 27 Jul 2007

Generic Constructions of Identity-Based and Certificateless KEMs

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We extend the concept of key encapsulation to the primitives of identity-based and certificateless encryption. We show that the natural combination of ID-KEMs or CL-KEMs with data encapsulation mechanisms results in encryption schemes that are secure in a strong sense. In addition, we give generic constructions of ID-KEMs and CL-KEMs that are provably secure in the random oracle model.