Certificateless Ring Signature Scheme from Anonymous Subsets
In a ring signature scheme from anonymous subsets,a member of a set can freely choose a family of subsets including their own subset to compute a signature which enjoys two properties: (1) the external verifier is convinced that all members of some subset in the subsets have cooperated to compute the signature; (2) he has no information about which subset has actually signed the message. Certificateless public key cryptography was first introduced by Al-Riyami and Paterson in Asiacrypt 2003. In certificateless cryptography, it does not require the use of certificates to guarantee the authenticity of users’ public keys. Meanwhile, certificateless cryptography has not the key escrow problem which exists in the identitybased cryptography. In this paper, we propose a certificateless ring signature scheme (CL-Ring) from anonymous subsets.This scheme is provably secure in the random oracle model.
ring signature certificateless cryptography bilinear pairings
Huaqun Wang
School of Information Engineering,Dalian Ocean University,Dalian,China; State Key laboratory of Integrated Service Networks(Xidian University),Xi’an,China
国际会议
南京
英文
413-417
2010-11-01（万方平台首次上网日期，不代表论文的发表时间）