World Library  
Flag as Inappropriate
Email this Article

Nush

Article Id: WHEBN0007939048
Reproduction Date:

Title: Nush  
Author: World Heritage Encyclopedia
Language: English
Subject: WikiProject Cryptography, Cryptography block, Cobra ciphers, Xor-encrypt-xor, Lai-Massey scheme
Collection: Broken Block Ciphers
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Nush

NUSH
General
Designers Anatoly Lebedev, Alexey Volchkov
First published 2000
Cipher detail
Key sizes 128, 192, or 256 bits
Block sizes 64, 128, or 256 bits
Rounds 9, 17, or 33
Best public cryptanalysis
A linear attack faster than exhaustive search has been found.

In cryptography, NUSH is a block cipher invented by Anatoly Lebedev and Alexey Volchkov for the Russian company LAN Crypto. It was submitted to the NESSIE project, but was not selected.

NUSH exists in several different variants, using keys of 128, 192, or 256 bits, and a block size of 64, 128, or 256 bits. The number of rounds is 9, 17, or 33, depending on the block size. The algorithm uses key whitening, but no S-boxes; the only operations it uses are AND, OR, XOR, modular addition, and bit rotation.

It has been shown that linear cryptanalysis can break NUSH with less effort than a brute force attack.[1]

References

  1. ^ Wenling Wu, Dengguo Feng (23 July 2001). "Linear cryptanalysis of NUSH block cipher". Science China Information Sciences ( 


This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.