Efficient Identity-Based Key Encapsulation to Multiple Parties.
Manuel Barbosa, Pooya Farshim · 2005
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 se-cure in the random oracle model under the Gap Bilinear Diffie-Hellman assumption.