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ASIACRYPT
2005
Springer
14 years 1 months ago
Discrete-Log-Based Signatures May Not Be Equivalent to Discrete Log
Abstract We provide evidence that the unforgeability of several discrete-log based signatures like Schnorr signatures cannot be equivalent to the discrete log problem in the standa...
Pascal Paillier, Damien Vergnaud
COMCOM
1999
91views more  COMCOM 1999»
13 years 7 months ago
Group-oriented undeniable signature schemes with a trusted center
Undeniable signature is an intriguing concept introduced by Chaum and Antwerpen at Crypto'89. In 1999, Lee and Hwang presented two group-oriented undeniable signature schemes ...
Narn-Yih Lee, Tzonelih Hwang
TCC
2009
Springer
184views Cryptology» more  TCC 2009»
14 years 8 months ago
Secure Arithmetic Computation with No Honest Majority
We study the complexity of securely evaluating arithmetic circuits over finite rings. This question is motivated by natural secure computation tasks. Focusing mainly on the case o...
Yuval Ishai, Manoj Prabhakaran, Amit Sahai
AAECC
2007
Springer
127views Algorithms» more  AAECC 2007»
13 years 7 months ago
Skew-cyclic codes
We generalize the notion of cyclic codes by using generator polynomials in (non commutative) skew polynomial rings. Since skew polynomial rings are left and right euclidean, the o...
Delphine Boucher, Willi Geiselmann, Felix Ulmer
ISW
2004
Springer
14 years 25 days ago
Low-Level Ideal Signatures and General Integrity Idealization
Abstract. Recently we showed how to justify a Dolev-Yao type model of cryptography as used in virtually all automated protocol provers under active attacks and in arbitrary protoco...
Michael Backes, Birgit Pfitzmann, Michael Waidner