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CRYPTO
2006
Springer
134views Cryptology» more  CRYPTO 2006»
13 years 11 months ago
Round-Optimal Composable Blind Signatures in the Common Reference String Model
We build concurrently executable blind signatures schemes in the common reference string model, based on general complexity assumptions, and with optimal round complexity. Namely, ...
Marc Fischlin
IJIT
2004
13 years 8 months ago
Practical Fair Anonymous Undeniable Signatures
We present a new model for undeniable signatures: fair-anonymous undeniable signatures. This protocol can not only preserve the privacy of the signer (i.e. anonymity) but also trac...
Song Han, Elizabeth Chang, Xiaotie Deng, Winson K....
PKC
2012
Springer
212views Cryptology» more  PKC 2012»
11 years 10 months ago
Security of Blind Signatures Revisited
We revisit the deļ¬nition of unforgeability of blind signatures as proposed by Pointcheval and Stern (Journal of Cryptology 2000). Surprisingly, we show that this established deļ¬...
Dominique Schröder, Dominique Unruh
IJNSEC
2008
106views more  IJNSEC 2008»
13 years 7 months ago
Comments on the Security Flaw of Hwang et al.'s Blind Signature Scheme
In 2003, Hwang et al. proposed a new blind signature based on the RSA cryptosystem by employing Extended Euclidean algorithm. They claimed that the proposed scheme was untraceable...
Fang-Ping Chiang, Yi-Mien Lin, Ya-Fen Chang
EUROCRYPT
2001
Springer
13 years 12 months ago
A Secure Three-Move Blind Signature Scheme for Polynomially Many Signatures
Abstract. Known practical blind signature schemes whose security against adaptive and parallel attacks can be proven in the random oracle model either need ļ¬ve data exchanges bet...
Masayuki Abe