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Efficient Identity-Based Key Encapsulation to Multiple Parties.

Manuel Barbosa, Pooya Farshim

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Abstract

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.

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What this paper is about

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.

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Available abstract

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.

Key concepts: Random oracle, Key encapsulation, Bilinear interpolation, Encapsulation (networking), Computer science, Computer security, Oracle, Public-key cryptography

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