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Paper 2017/154
Linear Cryptanalysis: Key Schedules and Tweakable Block Ciphers
Thorsten Kranz and Friedrich Wiemer and Gregor Leander
Abstract
This paper serves as a systematization of knowledge of linear cryptanalysis and provides novel insights in the areas of key schedule design and tweakable block ciphers. We examine in a step by step manner the linear hull theorem in a general and consistent setting. Based on this, we study the influence of the choice of the key scheduling on linear cryptanalysis, a -- notoriously difficult -- but important subject. Moreover, we investigate how tweakable block ciphers can be analyzed with respect to linear cryptanalysis, a topic that surprisingly has not been scrutinized until now.
Metadata
- Available format(s)
- Publication info
- Published by the IACR in TOSC 2017
- Keywords
- Linear CryptanalysisKey ScheduleHypothesis of Independent Round KeysTweakable Block Cipher
- Contact author(s)
-
thorsten kranz @ rub de
gregor leander @ rub de
friedrich wiemer @ rub de - History
- 2017-02-22: received
- Short URL
- https://ia.cr/2017/154
- License
-
CC BY