Results 1 to 10 of about 94 (18)

Provable security against generic attacks on stream ciphers

open access: yesJournal of Mathematical Cryptology, 2023
Recent lightweight hardware-based stream cipher designs keep an external non-volatile internal state that is not part of the cipher’s hardware module. The purpose of these so-called small-state ciphers is to keep the size of the hardware and the power ...
Moch Alexander
doaj   +1 more source

Constructions of pseudorandom binary lattices using cyclotomic classes in finite fields

open access: yesOpen Mathematics, 2020
In 2006, Hubert, Mauduit and Sárközy extended the notion of binary sequences to n-dimensional binary lattices and introduced the measures of pseudorandomness of binary lattices.
Chen Xiaolin
doaj   +1 more source

Barker sequences of odd length [PDF]

open access: yes, 2015
A Barker sequence is a binary sequence for which all nontrivial aperiodic autocorrelations are at most 1 in magnitude. An old conjecture due to Turyn asserts that there is no Barker sequence of length greater than 13.
Schmidt, Kai-Uwe, Willms, Jürgen
core   +1 more source

On the k-error linear complexity of cyclotomic sequences [PDF]

open access: yes, 2007
Exact values and bounds on the k-error linear complexity of p-periodic sequences which are constant on the cyclotomic classes are determined. This family of sequences includes sequences of discrete logarithms, Legendre sequences and Hall's sextic residue
Hassan, Aly   +2 more
core   +1 more source

Remarks on a cyclotomic sequence [PDF]

open access: yes, 2008
We analyse a binary cyclotomic sequence constructed via generalized cyclotomic classes by Bai et al. (IEEE Trans Inforem Theory 51: 1849-1853, 2005).
Meidl, Wilfried
core   +2 more sources

Linearity in decimation-based generators: an improved cryptanalysis on the shrinking generator

open access: yesOpen Mathematics, 2018
Decimation-based sequence generators are a class of non-linear cryptographic generators designed to be used in hardware implementations. An inherent characteristic of such generators is that their output sequences are interleaved sequences.
Cardell Sara D.   +2 more
doaj   +1 more source

Remarks on the k-error linear complexity of p(n)-periodic sequences [PDF]

open access: yes, 2007
Recently the first author presented exact formulas for the number of 2ⁿn-periodic binary sequences with given 1-error linear complexity, and an exact formula for the expected 1-error linear complexity and upper and lower bounds for the expected k-error ...
AGB Lauder   +11 more
core   +1 more source

How to determine linear complexity and $k$-error linear complexity in some classes of linear recurring sequences [PDF]

open access: yes, 2008
Several fast algorithms for the determination of the linear complexity of $d$-periodic sequences over a finite field $\F_q$, i.e. sequences with characteristic polynomial $f(x) = x^d-1$, have been proposed in the literature. In this contribution fast
A. Salagean   +20 more
core   +2 more sources

Direct sums of balanced functions, perfect nonlinear functions, and orthogonal cocycles [PDF]

open access: yes, 2008
Determining if a direct sum of functions inherits nonlinearity properties from its direct summands is a subtle problem. Here, we correct a statement by Nyberg on inheritance of balance and we use a connection between balanced derivatives and orthogonal ...
Horadam, K, LeBel, A
core   +1 more source

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