一种安全的群签名方案
A secure group signature scheme
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摘要: 对Tseng-Jan(1999)的群签名方案提出了一种新的伪造攻击，任何人利用这种攻击都能伪造出有效的群签名。针对该文提出的伪造攻击和Z.C.Li等人(2000)提出的伪造攻击，对 Tseng-Jan的群签名方案进行了改进，提出了一种新的安全群签名方案。新方案不仅能抵抗各种伪造攻击，而且保留了Tseng-Jan方案的主要优点，并且增加了群成员可注销的特性。Abstract: A new forgery attack is proposed to Tseng-Jan s group signature scheme(1999), anyone can produce a valid group signature with this forgery attack. In this paper, a new modified and secure group signature scheme is presented in point of the forgery attacks proposed by this paper and Z.C. Li, et al.(2000). The new scheme can not only resist all kinds of forgery attacks, but also preserve the main merits in Tseng-Jan s scheme. Furthermore, the new scheme can revoke group member according to need.
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W. Lee, C. Chang, Efficient group signature scheme based on the discrete logarithm, IEE Proc.-Comput. Digital Techniques, 1998, 145(1), 15-18.[2]Y.M. Tseng, J. K. Jan, Improved group signature based on discrete logarithm problem, Electronics Letters, 1999, 35(1): 37-38.[3]Y.M. Tseng, J. K. Jan, Reply: Improved group signature scheme based on discrete logarithm problem, Electronics L. etters, 1999, 35(6), 1324-1325[4]Z.C. Li, L. C. K. Hui, et al., Security of Tseng-Jans group signature schemes, Information Processing Letters, 2000, 75(5), 187-189. -
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