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PKC
2007
Springer
100views Cryptology» more  PKC 2007»
14 years 2 months ago
Multi-bit Cryptosystems Based on Lattice Problems
Abstract. We propose multi-bit versions of several single-bit cryptosystems based on lattice problems, the error-free version of the Ajtai-Dwork cryptosystem by Goldreich, Goldwass...
Akinori Kawachi, Keisuke Tanaka, Keita Xagawa
SACRYPT
2007
Springer
167views Cryptology» more  SACRYPT 2007»
14 years 2 months ago
Cryptanalysis of White-Box DES Implementations with Arbitrary External Encodings
Abstract. At DRM 2002, Chow et al. [4] presented a method for implementing the DES block cipher such that it becomes hard to extract the embedded secret key in a white-box attack c...
Brecht Wyseur, Wil Michiels, Paul Gorissen, Bart P...
SSC
2007
Springer
161views Cryptology» more  SSC 2007»
14 years 2 months ago
On Attacks on Filtering Generators Using Linear Subspace Structures
Abstract. The filter generator consists of a linear feedback shift register (LFSR) and a Boolean filtering function that combines some bits from the shift register to create a ke...
Sondre Rønjom, Guang Gong, Tor Helleseth
TCC
2007
Springer
104views Cryptology» more  TCC 2007»
14 years 2 months ago
Obfuscation for Cryptographic Purposes
Abstract. An obfuscation O of a function F should satisfy two requirements: firstly, using O it should be possible to evaluate F; secondly, O should not reveal anything about F th...
Dennis Hofheinz, John Malone-Lee, Martijn Stam
TCC
2007
Springer
145views Cryptology» more  TCC 2007»
14 years 2 months ago
(Password) Authenticated Key Establishment: From 2-Party to Group
Abstract. A protocol compiler is described, that transforms any provably secure authenticated 2-party key establishment into a provably secure authenticated group key establishment...
Michel Abdalla, Jens-Matthias Bohli, Maria Isabel ...