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ASIACRYPT
2006
Springer
14 years 1 months ago
Analysis of One Popular Group Signature Scheme
The group signature scheme [1], ACJT for short, is popular. In this paper we show that it is not secure. It does not satisfy exculpability. The group manager can sign on behalf of ...
Zhengjun Cao
ACNS
2008
Springer
132views Cryptology» more  ACNS 2008»
14 years 4 months ago
Generic Security-Amplifying Methods of Ordinary Digital Signatures
We describe two new paradigms on how to obtain ordinary signatures that are secure against existential forgery under adaptively chosen message attacks (fully-secure, in short), fro...
Jin Li, Kwangjo Kim, Fangguo Zhang, Duncan S. Wong
PKC
2004
Springer
150views Cryptology» more  PKC 2004»
14 years 3 months ago
Undeniable Signatures Based on Characters: How to Sign with One Bit
We present a new undeniable signature scheme which is based on the computation of characters. Our signature scheme offers the advantage of having an arbitrarily short signature. I...
Jean Monnerat, Serge Vaudenay
CRYPTO
2001
Springer
106views Cryptology» more  CRYPTO 2001»
14 years 2 months ago
Forward-Secure Signatures with Optimal Signing and Verifying
We propose the first forward-secure signature scheme for which both signing and verifying are as efficient as for one of the most efficient ordinary signature schemes (Guillou-Qui...
Gene Itkis, Leonid Reyzin
PCM
2004
Springer
224views Multimedia» more  PCM 2004»
14 years 3 months ago
Fast and Robust Short Video Clip Search for Copy Detection
Query by video clip (QVC) has attracted wide research interests in multimedia information retrieval. In general, QVC may include feature extraction, similaritymeasure,databaseorgan...
Junsong Yuan, Ling-Yu Duan, Qi Tian, Surendra Rang...