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» QUAD: A Practical Stream Cipher with Provable Security
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EUROCRYPT
2009
Springer
14 years 8 months ago
Cube Attacks on Tweakable Black Box Polynomials
Almost any cryptographic scheme can be described by tweakable polynomials over GF(2), which contain both secret variables (e.g., key bits) and public variables (e.g., plaintext bit...
Itai Dinur, Adi Shamir
CHES
2008
Springer
84views Cryptology» more  CHES 2008»
13 years 9 months ago
A Real-World Attack Breaking A5/1 within Hours
Abstract. In this paper we present a real-world hardware-assisted attack on the wellknown A5/1 stream cipher which is (still) used to secure GSM communication in most countries all...
Timo Gendrullis, Martin Novotný, Andy Rupp
ISW
2009
Springer
14 years 2 months ago
Nonce Generators and the Nonce Reset Problem
A nonce is a cryptographic input value which must never repeat within a given context. Nonces are important for the security of many cryptographic building blocks, such as stream c...
Erik Zenner
CRYPTO
2005
Springer
110views Cryptology» more  CRYPTO 2005»
14 years 1 months ago
The Conditional Correlation Attack: A Practical Attack on Bluetooth Encryption
Motivated by the security of the nonlinear filter generator, the concept of correlation was previously extended to the conditional correlation, that studied the linear correlation...
Yi Lu 0002, Willi Meier, Serge Vaudenay
ACISP
2006
Springer
14 years 1 months ago
On Exact Algebraic [Non-]Immunity of S-Boxes Based on Power Functions
In this paper we are interested in algebraic immunity of several well known highly-nonlinear vectorial Boolean functions (or Sboxes), designed for block and stream ciphers. Unfortu...
Nicolas Courtois, Blandine Debraize, Eric Garrido