%0 Conference Proceedings
%T Impossible Differential Cryptanalysis of Reduced-Round LBlock
%+ Computer Engineering Department (IU_CED)
%+ Tübitak Bilgem
%A Karakoç, Ferhat
%A Demirci, Hüseyin
%A Harmanci, A., Emre
%Z Part 8: Cryptography (Short Papers)
%< avec comité de lecture
%( Lecture Notes in Computer Science
%B 6th International Workshop on Information Security Theory and Practice (WISTP)
%C Egham, United Kingdom
%Y Ioannis Askoxylakis
%Y Henrich C. Pöhls
%Y Joachim Posegga
%I Springer
%3 Information Security Theory and Practice. Security, Privacy and Trust in Computing Systems and Ambient Intelligent Ecosystems
%V LNCS-7322
%P 179-188
%8 2012-06-20
%D 2012
%R 10.1007/978-3-642-30955-7_16
%K LBlock
%K differential cryptanalysis
%K impossible differential cryptanalysis
%K miss-in-the-middle attack
%Z Computer Science [cs]Conference papers
%X In this paper, we improve the impossible differential attack on 20-round LBlock given in the design paper of the LBlock cipher. Using relations between the round keys we attack on 21-round and 22-round LBlock with a complexity of 269.5 and 279.28 encryptions respectively. We use the same 14-round impossible differential characteristic observed by the designers to attack on 21 rounds and another 14-round impossible differential characteristic to attack on 22 rounds of LBlock.
%G English
%Z TC 11
%Z WG 11.2
%2 https://inria.hal.science/hal-01534301/document
%2 https://inria.hal.science/hal-01534301/file/978-3-642-30955-7_16_Chapter.pdf
%L hal-01534301
%U https://inria.hal.science/hal-01534301
%~ IFIP-LNCS
%~ IFIP
%~ IFIP-TC
%~ IFIP-TC11
%~ IFIP-WISTP
%~ IFIP-WG11-2
%~ IFIP-LNCS-7322