Title :
On the Linear Complexity and
-Error Linear Complexity Over
of
Author :
Aly, Heba ; Meidl, Wilfried
Author_Institution :
Dept. of Math., Cairo Univ., Giza
Abstract :
The d-ary Sidel´nikov sequence S = s0, s1... of period q-1 for a prime power q=pm is a frequently analyzed sequence in the literature. Recently, it turned out that the linear complexity over Fp of the d-ary Sidel´nikov sequence is considerably smaller than the period if the sequence element s(q-1)/2mod(q-1) is chosen adequately. In this paper this work is continued and tight lower bounds on the linear complexity over Fp of the d-ary Sidel´nikov sequence are given. For certain cases exact values are provided. Finally, results on the k-error linear complexity over Fp of the d-ary Sidel´nikov sequence are presented.
Keywords :
computational complexity; sequences; d-ary Sidel\´nikov sequence; k-error linear complexity; linear complexity; Galois fields; Hamming distance; Mathematics; Security; Vectors; $k$ -error linear complexity; Sidel\´nikov sequences; linear complexity; stream ciphers;
Journal_Title :
Information Theory, IEEE Transactions on
DOI :
10.1109/TIT.2007.909129