›› 2007, Vol. 24 ›› Issue (3): 316-319.DOI: 10.7523/j.issn.2095-6134.2007.3.007
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ZHOU Su-Jing, LIN Dong-Dai
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Abstract: Group signature schemes are extended from ordinary digital signatures motivated by many applications. Zhang et al. proposed an e±- cient group signature scheme which was claimed more e±cient than the well known ACJT scheme, due to the reason that expensive signature of knowl- edge, a component in a majority of group signature schemes, was avoid in generating the group signature. In this paper, we point out that Zhang et al.’s scheme actually adopts signature of knowledge, and it is insecure com- pletely because of inappropriate design.
Key words: digital signature, group signature
CLC Number:
TN918
ZHOU Su-Jing, LIN Dong-Dai. Comments on an efficient group signature scheme[J]. , 2007, 24(3): 316-319.
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URL: http://journal.ucas.ac.cn/EN/10.7523/j.issn.2095-6134.2007.3.007
http://journal.ucas.ac.cn/EN/Y2007/V24/I3/316