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

Volume

1

fYear

2007

fDate

21-23 May 2007

Firstpage

109

Lastpage

112

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/AINAW.2007.168

Filename

4221044