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Pairing-Free and Secure Certificateless Signcryption Scheme.

Authors :
HUIFANG YU
BO YANG
Source :
Computer Journal. Aug2017, Vol. 60 Issue 8, p1187-1196. 10p.
Publication Year :
2017

Abstract

Certificateless signcryption (CLSC) can simultaneously fulfill certificateless encryption and certificateless signature; however, most CLSC schemes need costly computational overhead due to the usage of pairing operations. How to improve its computational efficiency is a very significant research problem. In this paper, we propose a pairing-free and secure CLSC scheme. In the random oracle model, the proposed scheme is indistinguishability against adaptive chosen-ciphertext attacks secure in confidentiality and unforgeability against adaptive chosen-message attacks secure in unforgeability. In the new scheme, only a designated receiver can recover the message, and a third party can verify the validity of a signcrypted text without knowing the receiver's secret value. In addition, this cryptographic algorithm is very appropriate to applications in online auction, email system and private contractual signature. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00104620
Volume :
60
Issue :
8
Database :
Academic Search Index
Journal :
Computer Journal
Publication Type :
Academic Journal
Accession number :
124533587
Full Text :
https://doi.org/10.1093/comjnl/bxx005