Impossible differential cryptanalysis of MARS-like structures

The MARS-like structure is a generalised Feistel structure. Unified impossible differential (UID) method is an effective method to discover impossible differential characteristics for block cipher structures. In this study, for a specific kind of MARS-like structure, the authors use UID to show that...

Full description

Saved in:
Bibliographic Details
Published in:IET information security 2015-07, Vol.9 (4), p.219-222
Main Authors: Xue, Weijia, Lai, Xuejia
Format: Article
Language:English
Subjects:
block cipher structures
Blocking
Computer information security
Cryptography
Encryption
generalised Feistel structure
impossible differential characteristics
MARS‐like structures
UID method
unified impossible differential method
Citations: Items that this one cites
Items that cite this one
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The MARS-like structure is a generalised Feistel structure. Unified impossible differential (UID) method is an effective method to discover impossible differential characteristics for block cipher structures. In this study, for a specific kind of MARS-like structure, the authors use UID to show that when n, the number of subblocks, is even, there always exist 3n − 1 rounds impossible differentials. Moreover, the authors prove that when n is odd, the MARS-like structure has impossible differentials for any number of rounds, which is a clear but interesting result.
ISSN:1751-8709
1751-8717
1751-8717
DOI:10.1049/iet-ifs.2014.0183