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《Computer Applications and Software》 2009-07
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SECURITY ANALYSIS OF A DYNAMIC GROUP SIGNATURE SCHEME

Wang Zhanjun1 Ma Haiying21(School of Sciences,Nantong University,Nantong 226007,Jiangsu,China)2(School of Computer Science and Technology,Nantong University,Nantong 226019,Jiangsu,China)  
Wu Ke-li proposed a dynamic group signature scheme[1],and claimed that its security property meeting what the group signature required was proved.In this paper it carefully analyzed the scheme and found the security flaws in it.Anyone out of group can generate his/her own private key of signature and group member's certificate,and can use it to forge a valid group signature,i.e.to forge an untraceable group signature.Moreover,an entrapment attack to the group signature scheme was designed as well.The analysis on the security of that scheme shows that it is insecure.
【CateGory Index】: TP393.08
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 Wu Keli1,2 Sun Kangdu1 Zhu Baoping2 Liu Fengyu21(Department of Computer Science,Huaiyin Teachers College,Huaian 223001,Jiangsu,China)2(Department of Computer Science and Technology,Nanjing University of Science and Technology,Nanjing 210094,Jiangsu,China);A DYNAMIC GROUP SIGNATURE SCHEME[J];Computer Applications and Software;2007-09
【Co-citations】
Chinese Journal Full-text Database 2 Hits
1 CAI Yong-quan,LIU Yan(College of Computer Science and Technology,Beijing University of Technology,Beijing 100124);An ID-based Group Signature Scheme Without Trusted PKG or Random Oracles[J];Acta Electronica Sinica;2009-S1
2 CAI Yong-quan,LIU Yan(College of Computer Science and Technology,Beijing University of Technology,Beijing 100124,China);A Method of User Revocation Using Authentication Tree of Group Signature[J];Journal of Beijing University of Technology;2010-01
【Secondary Citations】
Chinese Journal Full-text Database 1 Hits
1 WANG Shang-Ping1,2+, WANG Yu-Min2, WANG Xiao-Feng1, QIN Bo1, HE Cheng1, ZOU You-Jiao1 1(Institute of Natural Science, Xi抋n University of Technology, Xi抋n 710048, China) 2(National Key Laboratory on ISN, Xidian University, Xi抋n 710071, China) + Corresponding author: Phn: 86-[(2)0(9)]-2312848, E-mail: spwang@mail.axut.edu.cn http://www.xaut.edu.cn;A New Solution Scheme for the Member Deletion Problem in Group Signature by Use of Renew Operator[J];Journal of Software;2003-11
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