Title :
Efficient Mediated Certificates Public-Key Encryption Scheme without Pairings
Author :
Yang, Chen ; Wang, Furong ; Wang, Xinmei
Author_Institution :
Key Lab. of Comput. Networks & Inf. Security, Xidian Univ., Xi´´an
Abstract :
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.
Keywords :
public key cryptography; bilinear pairing; computational Diffie-Hellman problem; identity-based cryptosystem; instantaneous revocation property; key escrow problem; mediated certificateless public-key encryption scheme; random oracle; Authentication; Computer networks; Computer science education; Data structures; Identity management systems; Identity-based encryption; Information security; Internet; Public key; Public key cryptography;
Conference_Titel :
Advanced Information Networking and Applications Workshops, 2007, AINAW '07. 21st International Conference on
Conference_Location :
Niagara Falls, Ont.
Print_ISBN :
978-0-7695-2847-2
DOI :
10.1109/AINAW.2007.168
