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» Digital Signature Scheme Based on a New Hard Problem
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DRM
2003
Springer
14 years 24 days ago
Breaking and repairing optimistic fair exchange from PODC 2003
In PODC 2003, Park, Chong, Siegel and Ray [22] proposed an optimistic protocol for fair exchange, based on RSA signatures. We show that their protocol is totally breakable already...
Yevgeniy Dodis, Leonid Reyzin
IH
1999
Springer
13 years 11 months ago
Hiding Signatures in Graph Coloring Solutions
Abstract. One way to protect a digital product is to embed an author's signature into the object in the form of minute errors. However, this technique cannot be directly appli...
Gang Qu, Miodrag Potkonjak
PKC
2000
Springer
132views Cryptology» more  PKC 2000»
13 years 11 months ago
The Composite Discrete Logarithm and Secure Authentication
For the two last decades, electronic authentication has been an important topic. The first applications were digital signatures to mimic handwritten signatures for digital document...
David Pointcheval
EUROCRYPT
2000
Springer
13 years 11 months ago
Security Analysis of the Gennaro-Halevi-Rabin Signature Scheme
We exhibit an attack against a signature scheme recently proposed by Gennaro, Halevi and Rabin [9]. The scheme's security is based on two assumptions namely the strong RSA ass...
Jean-Sébastien Coron, David Naccache
CORR
2010
Springer
135views Education» more  CORR 2010»
13 years 7 months ago
Cryptanalysis of an Elliptic Curve-based Signcryption Scheme
The signcryption is a relatively new cryptographic technique that is supposed to fulfill the functionalities of encryption and digital signature in a single logical step. Although...
Mohsen Toorani, Ali Asghar Beheshti Shirazi