Generic Constructions of Identity-Based and Certificateless KEMs
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- Bentahar, K., Farshim, P., Malone-Lee, J. et al. J Cryptol (2008) 21: 178. doi:10.1007/s00145-007-9000-z
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.