Title: Pseudorandomness of Basic Structures in the Block Cipher KASUMI
Authors: Kang, JS ×
Preneel, Bart
Ryu, H
Chung, KI
Park, CH #
Issue Date: 2003
Publisher: Electronics and Telecommunication Research Institute
Series Title: ETRI Journal vol:25 issue:2 pages:89-100
Abstract: The notion of pseudorandomness is the theoretical foundation on which to consider the soundness of a basic structure used in some block ciphers. We examine the pseudorandomness of the block cipher KASUMI, which will be used in the next-generation cellular phones. First, we prove that the four-round unbalanced MISTY-type transformation is pseudorandom in order to illustrate the pseudorandomness of the inside round function FI of KASUMI under an adaptive distinguisher model. Second, we show that the three-round KASUMI-like structure is not pseudorandom but the four-round KASUMI-like structure is pseudorandom under a non-adaptive distinguisher model.
ISSN: 1225-6463
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - STADIUS, Stadius Centre for Dynamical Systems, Signal Processing and Data Analytics
× corresponding author
# (joint) last author

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