Abstract
C. Ding, W. Shan and G. Xiao conjectured a certain kind of trade-off between the linear complexity and the k-error linear complexity of periodic sequences over a finite field. This conjecture has recently been disproved by the first author, by showing that for infinitely many period lengths N and some values of k both complexities may take very large values (contradicting the above conjecture). Here we use some recent achievements of analytic number theory to extend the class of period lengths N and the number of admissible errors k for which this conjecture fails for rather large values of k. We also discuss the relevance of this result for stream ciphers.
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Niederreiter, H., Shparlinski, I.E. (2003). Periodic Sequences with Maximal Linear Complexity and Almost Maximal k-Error Linear Complexity. In: Paterson, K.G. (eds) Cryptography and Coding. Cryptography and Coding 2003. Lecture Notes in Computer Science, vol 2898. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-40974-8_15
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DOI: https://doi.org/10.1007/978-3-540-40974-8_15
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