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CRYPTO
2004
Springer
154views Cryptology» more  CRYPTO 2004»
14 years 3 months ago
An Improved Correlation Attack Against Irregular Clocked and Filtered Keystream Generators
Abstract. In this paper we propose a new key recovery attack on irregular clocked keystream generators where the stream is filtered by a nonlinear Boolean function. We show that t...
Håvard Molland, Tor Helleseth
IJNSEC
2006
110views more  IJNSEC 2006»
13 years 10 months ago
The Improvement of YSYCT Scheme for Imbalanced Wireless Network
Recently, Yeh et al. proposed an improved password authenticated key exchange scheme (YSYCT scheme) which is secure against undetectable on-line password guessing attacks and prov...
Jung-Wen Lo
SACRYPT
2007
Springer
126views Cryptology» more  SACRYPT 2007»
14 years 4 months ago
Improved Side-Channel Collision Attacks on AES
Abstract. Side-channel collision attacks were proposed in [1] and applied to AES in [2]. These are based on detecting collisions in certain positions of the internal state after th...
Andrey Bogdanov
CHES
2000
Springer
114views Cryptology» more  CHES 2000»
14 years 2 months ago
Montgomery Exponentiation with no Final Subtractions: Improved Results
The Montgomery multiplication is commonly used as the core algorithm for cryptosystems based on modular arithmetic. With the advent of new classes of attacks (timing attacks, power...
Gaël Hachez, Jean-Jacques Quisquater
JSS
2007
79views more  JSS 2007»
13 years 9 months ago
Security problems with improper implementations of improved FEA-M
This paper reports security problems with improper implementations of an improved version of FEA-M (fast encryption algorithm for multimedia). It is found that an implementation-d...
Shujun Li, Kwok-Tung Lo