Title :
Finding low-weight polynomial multiples using discrete logarithm
Author :
Didier, F. ; Laigle-Chapuy, Y.
Author_Institution :
Rocquencourt Projet CODES, Le Chesnay
Abstract :
Finding low-weight multiples of a binary polynomial is a difficult problem arising in the context of stream ciphers cryptanalysis. The best algorithms to solve this problem are based on a time memory tradeoff. Staying in this category, we will present a new approach using discrete logarithm rather than a direct representation of the involved polynomials. This provides an alternative to the previously known algorithms which improves in some case the computational complexity.
Keywords :
cryptography; polynomials; binary polynomial; discrete logarithm; low-weight polynomial multiples; stream ciphers cryptanalysis; Computational complexity; Cryptography; Dissolved gas analysis; Equations; Galois fields; Linear feedback shift registers; Noise generators; Parity check codes; Polynomials;
Conference_Titel :
Information Theory, 2007. ISIT 2007. IEEE International Symposium on
Conference_Location :
Nice
Print_ISBN :
978-1-4244-1397-3
DOI :
10.1109/ISIT.2007.4557360