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Safety analysis of the threshold group signature scheme

Author: LiuNian
Tutor: ChenXiaoSong
School: Central South University
Course: Computational Mathematics
Keywords: Digital Signature Secret sharing Hash functions Threshold Group Signature
CLC: TN918.1
Type: Master's thesis
Year: 2009
Downloads: 87
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Abstract


In everyday life , we use the signature to represent personal identity on the Internet , the digital signature becomes effective legal alternative handwritten signature . Digital signature concept was originally proposed by Diffie and Hellman proposed to allow a user to announce a public key to verify the signature , and also save a private key used to generate the signature . Since Desmedt and Frankel in 1991 (t, n) threshold group signature threshold digital signature has been extensively studied , academia proposed a variety of ( t , n ) threshold group signature scheme . This paper door threshold group signature study introduces the basic concepts and tools used in the article , and then introduce the eight properties of threshold group signature scheme should have these properties as standard A careful analysis of existing PGC and LW threshold group signature scheme , and found that they were defective and inadequate . Maple programming elliptic curve Tate .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Confidentiality of communications and communications security > Theory
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