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IJNSEC
2007
130views more  IJNSEC 2007»
13 years 7 months ago
An Attack on Libert et al.' s ID-based Undeniable Signature Scheme
In 2004, Libert and Quisquater proposed an identity based undeniable signature scheme using pairings over elliptic curves. In this article, we show that the scheme is not secure. ...
Zichen Li, C. F. Chong, Lucas Chi Kwong Hui, Siu-M...
AMC
2005
124views more  AMC 2005»
13 years 7 months ago
An efficient undeniable group-oriented signature scheme
Three main methods with favorable security and efficiency can be considered in the design of cryptosystems. These methods are integer factorization systems (of which RSA is the be...
Tzer-Shyong Chen, Jen-Yan Huang, Tzer-Long Chen
MYCRYPT
2005
Springer
123views Cryptology» more  MYCRYPT 2005»
14 years 26 days ago
Optimization of the MOVA Undeniable Signature Scheme
This article presents optimization results on the recent MOVA undeniable signature scheme presented by Monnerat and Vaudenay at PKC ’04 as well as its generalization proposed at ...
Jean Monnerat, Yvonne Anne Oswald, Serge Vaudenay
ASIACRYPT
2004
Springer
14 years 23 days ago
Generic Homomorphic Undeniable Signatures
We introduce a new computational problem related to the interpolation of group homomorphisms which generalizes many famous cryptographic problems including discrete logarithm, Di...
Jean Monnerat, Serge Vaudenay
PKC
2005
Springer
94views Cryptology» more  PKC 2005»
14 years 26 days ago
The Security of the FDH Variant of Chaum's Undeniable Signature Scheme
In this paper, we first introduce a new kind of adversarial goal called forge-and-impersonate in undeniable signature schemes. Note that forgeability does not necessarily imply im...
Wakaha Ogata, Kaoru Kurosawa, Swee-Huay Heng