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CHES
2007
Springer
157views Cryptology» more  CHES 2007»
14 years 3 months ago
A Hardware-Assisted Realtime Attack on A5/2 Without Precomputations
Abstract. A5/2 is a synchronous stream cipher that is used for protecting GSM communication. Recently, some powerful attacks [2,10] on A5/2 have been proposed. In this contribution...
Andrey Bogdanov, Thomas Eisenbarth, Andy Rupp
EUROCRYPT
2007
Springer
14 years 3 months ago
Range Extension for Weak PRFs; The Good, the Bad, and the Ugly
We investigate a general class of (black-box) constructions for range extension of weak pseudorandom functions: a construction based on m independent functions F1, . . . , Fm is gi...
Krzysztof Pietrzak, Johan Sjödin
EUROCRYPT
2007
Springer
14 years 3 months ago
Simulatable Adaptive Oblivious Transfer
We study an adaptive variant of oblivious transfer in which a sender has N messages, of which a receiver can adaptively choose to receive k one-after-the-other, in such a way that ...
Jan Camenisch, Gregory Neven, Abhi Shelat
ISW
2007
Springer
14 years 3 months ago
On the Concept of Software Obfuscation in Computer Security
Abstract. Program obfuscation is a semantic-preserving transformation aimed at bringing a program into such a form, which impedes the understanding of its algorithm and data struct...
Nikolay Kuzurin, Alexander Shokurov, Nikolay P. Va...
TCC
2007
Springer
91views Cryptology» more  TCC 2007»
14 years 3 months ago
Lower Bounds for Non-interactive Zero-Knowledge
Abstract. We establish new lower bounds and impossibility results for noninteractive zero-knowledge proofs and arguments with set-up assumptions. – For the common random string m...
Hoeteck Wee