40 search results - page 5 / 8 » Nonlinear Equivalence of Stream Ciphers |
CRYPTO
2004
Springer
14 years 4 months ago
2004
Springer
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...
ACISP
2003
Springer
14 years 4 months ago
2003
Springer
Abstract. We explore three applications of geometric sequences in constructing cryptographic Boolean functions. First, we construct 1-resilient functions of n Boolean variables wit...
INDOCRYPT
2005
Springer
14 years 4 months ago
2005
Springer
1 Dragon is a word oriented stream cipher submitted to the ECRYPT project, it operates on key sizes of 128 and 256 bits. The original idea of the design is to use a nonlinear feedb...
SACRYPT
2000
Springer
14 years 2 months ago
2000
Springer
It has recently been shown that when m > 1 2 n - 1, the nonlinearity Nf of an mth-order correlation immune function f with n variables satisfies the condition of Nf 2n-1 - 2m ,...
TIT
2008
13 years 10 months ago
2008
The nonlinearity profile of a Boolean function (i.e. the sequence of its minimum Hamming distances nlr(f) to all functions of degrees at most r, for r 1) is a cryptographic crite...