Efficient identity-based key encapsulation to multiple parties

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...

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Bibliographic Details
Main Author: Barbosa, Manuel (author)
Other Authors: Farshim, P. (author)
Format: conferencePaper
Language:eng
Published: 2005
Subjects:
Key encapsulation mechanism (KEM)
Hybrid encryption
Identity based cryptography
Provable security
Science & Technology
Online Access:http://hdl.handle.net/1822/3804
Country:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/3804
Description
Summary: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.

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