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INDOCRYPT
2007
Springer
14 years 2 months ago
Related-Key Attacks on the Py-Family of Ciphers and an Approach to Repair the Weaknesses
The stream cipher TPypy has been designed by Biham and Seberry in January 2007 as the strongest member of the Py-family ciphers, after weaknesses in the other members Py, Pypy, Py...
Gautham Sekar, Souradyuti Paul, Bart Preneel
CRYPTO
2003
Springer
109views Cryptology» more  CRYPTO 2003»
14 years 1 months ago
Weak Key Authenticity and the Computational Completeness of Formal Encryption
Abstract. A significant effort has recently been made to rigorously relate the formal treatment of cryptography with the computational one. A first substantial step in this dire...
Omer Horvitz, Virgil D. Gligor
STOC
2009
ACM
145views Algorithms» more  STOC 2009»
14 years 9 months ago
Non-malleable extractors and symmetric key cryptography from weak secrets
We study the question of basing symmetric key cryptography on weak secrets. In this setting, Alice and Bob share an n-bit secret W, which might not be uniformly random, but the ad...
Yevgeniy Dodis, Daniel Wichs
EUROCRYPT
2000
Springer
14 years 5 days ago
Information-Theoretic Key Agreement: From Weak to Strong Secrecy for Free
One of the basic problems in cryptography is the generation of a common secret key between two parties, for instance in order to communicate privately. In this paper we consider in...
Ueli M. Maurer, Stefan Wolf
EUROCRYPT
2003
Springer
14 years 1 months ago
Resettable Zero-Knowledge in the Weak Public-Key Model
A new public-key model for resettable zero-knowledge (rZK) protocols, which is an extension and generalization of the upper-bounded public-key (UPK) model introduced by Micali and ...
Yunlei Zhao, Xiaotie Deng, Chan H. Lee, Hong Zhu