Efficient identity-based key encapsulation to multiple parties

Authors:
M. Barbosa;P. Farshim
Affiliations:
Departamento de Informática, Universidade do Minho, Braga, Portugal;Department of Computer Science, University of Bristol, Bristol, United Kingdom
Venue:
IMA'05 Proceedings of the 10th international conference on Cryptography and Coding
Year:
2005

Citing 9
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Abstract

We introduce the concept of identity based key encapsulation to multiple parties (mID-KEM), and define a security model for it. This concept is the identity based analogue of public key KEM to multiple parties. We also analyse possible mID-KEM constructions, and propose an efficient scheme based on bilinear pairings. We prove our scheme secure in the random oracle model under the Gap Bilinear Diffie-Hellman assumption.