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CRYPTO
1998
Springer
105views Cryptology» more  CRYPTO 1998»
15 years 11 months ago
An Efficient Discrete Log Pseudo Random Generator
The exponentiation function in a finite field of order p (a prime number) is believed to be a one-way function. It is well known that O(log log p) bits are simultaneously hard for ...
Sarvar Patel, Ganapathy S. Sundaram
EUROCRYPT
1998
Springer
15 years 11 months ago
Divertible Protocols and Atomic Proxy Cryptography
Abstract. First, we introduce the notion of divertibility as a protocol property as opposed to the existing notion as a language property (see Okamoto, Ohta [OO90]). We give a defi...
Matt Blaze, Gerrit Bleumer, Martin Strauss
EUROCRYPT
1998
Springer
15 years 11 months ago
A Cryptosystem Based on Non-maximal Imaginary Quadratic Orders with Fast Decryption
We introduce a new cryptosystem with trapdoor decryption based on the di culty of computing discrete logarithms in the class group of the non-maximal imaginary quadratic order O q ...
Detlef Hühnlein, Michael J. Jacobson Jr., Sac...
EUROCRYPT
1998
Springer
15 years 11 months ago
Strengthened Security for Blind Signatures
Abstract. Provable security is a very nice property for cryptographic protocols. Unfortunately, in many cases, this is at the cost of a considerable loss in terms of efficiency. Mo...
David Pointcheval
FSE
1998
Springer
131views Cryptology» more  FSE 1998»
15 years 11 months ago
Cryptanalysis of TWOPRIME
Ding et al [DNRS97] propose a stream generator based on several layers. We present several attacks. First, we observe that the non-surjectivity of a linear combination step allows ...
Don Coppersmith, David Wagner, Bruce Schneier, Joh...