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Efficient Mediated Certificates Public-Key Encryption Scheme without Pairings

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3 Author(s)
Chen Yang ; Key Lab. of Comput. Networks & Inf. Security, Xidian Univ., Xi''an ; Furong Wang ; Xinmei Wang

It has always been a critical issue to find efficient methods for fast revocation of a user's identity in traditional ID-based crypto systems. In this paper, we present an efficient mediated certificateless public-key encryption scheme (MCL-PKE for short) without using bilinear pairing. The proposed MCL-PKE scheme solves the inherent key escrow problem of traditional identity-based cryptosystems and provides instantaneous revocation property simultaneously. In addition, our scheme is IND-CCA secure against two types of adversaries in random oracle based on the hardness of the computational Diffie-Hellman problem.

Published in:

Advanced Information Networking and Applications Workshops, 2007, AINAW '07. 21st International Conference on  (Volume:1 )

Date of Conference:

21-23 May 2007