Reduced Complexity Attacks on the Alternating Step Generator
2007 (English)In: Selected Areas in Cryptography / [ed] Adams, C; Miri, A; Wiener, M, Springer Berlin/Heidelberg, 2007, 1-16 p.Conference paper (Refereed)
In this paper, we present some reduced complexity attacks on the Alternating Step Generator (ASG). The attacks are based on a quite general framework and mostly benefit from the low sampling resistance of the ASG, and of an abnormal behavior related to the distribution of the initial states of the stop/go LFSR's which produce a given segment of the output sequence. Our results compare well with previous results as they show a greater flexibility with regard to known output of the ASG, which amounts in reduced complexity. We will also give a closed form for the complexity of attacks on ASG (and SG) as presented in .
Place, publisher, year, edition, pages
Springer Berlin/Heidelberg, 2007. 1-16 p.
, Lecture Notes in Computer Science, ISSN 0302-9743 ; 4876
stream cipher, clock-controlled generator, alternating step generator
IdentifiersURN: urn:nbn:se:kth:diva-70467ISI: 000252885500001ISBN: 978-3-540-77359-7OAI: oai:DiVA.org:kth-70467DiVA: diva2:486376
14th International Workshop on Selected Areas in Cryptography, SAC 2007; Ottawa; 16 August 2007 through 17 August 2007
QC 201202032012-01-302012-01-302012-02-03Bibliographically approved