DocumentCode :
2115838
Title :
A Provably Secure Threshold Ring Signature Scheme in Certificateless Cryptography
Author :
Wang, Huaqun ; Han, Shengju
Author_Institution :
Sch. of Inf. Eng., Dalian Ocean Univ., Dalian, China
Volume :
1
fYear :
2010
fDate :
7-8 Aug. 2010
Firstpage :
105
Lastpage :
108
Abstract :
Ring signature is a kind of group-oriented signature. It allows a member of a group to sign messages on behalf of the group without revealing his/her identity. Certificateless public key cryptography was first introduced by Al-Riyami and Paterson at Asiacrypt 2003. In certificateless cryptography, it does not require the use of certificates to guarantee the authenticity of users´ public keys. Meanwhile, certificateless cryptography does not have the key escrow problem, which seems to be inherent in the identity-based cryptography. In this paper, we introduce the notion of thresholdring signature into certificateless public key cryptography and propose a concrete certificateless threshold ring signature (CLT-Ring) scheme. The security models of certificateless threshold ring signature are also formalized. The new scheme is provably secure in the random oracle model.
Keywords :
digital signatures; public key cryptography; certificateless public key cryptography; certificateless threshold ring signature; group-oriented signature; identity-based cryptography; provably secure threshold ring signature scheme; random oracle model; security models; Construction industry; Forgery; Games; Public key cryptography; Certificateless cryptography; Provable security; Random oracle model; Threshold ring signature;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Science and Management Engineering (ISME), 2010 International Conference of
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-7669-5
Electronic_ISBN :
978-1-4244-7670-1
Type :
conf
DOI :
10.1109/ISME.2010.113
Filename :
5573757
Link To Document :
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