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ICCSA
2005
Springer
15 years 9 months ago
2005
Springer
In resent years, Popescu proposed several group signature schemes based on the Okamoto-Shiraishi assumption in [8–11], and claimed his schemes are secure. However, this paper dem...
90
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CTRSA
2005
Springer
15 years 9 months ago
2005
Springer
124
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ICITS
2009
15 years 1 months ago
2009
We observe that finding invalid signatures in batches of signatures that fail batch verification is an instance of the classical group testing problem. We present and compare new ...
137
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ASIACRYPT
2003
Springer
15 years 7 months ago
2003
Springer
Abstract. Group signature schemes are fundamental cryptographic tools that enable unlinkably anonymous authentication, in the same fashion that digital signatures provide the basis...
126
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INFORMATICALT
2006
15 years 3 months ago
2006
One important requirement of electronic cash systems is the anonymity of customers. Unconditional anonymity is also very well suited to support criminals in blackmailing. Maitland ...