MMB

MMB

Infobox block cipher
name = MMB
designers = Joan Daemen
publish date = 1993
derived from = IDEA
derived to = ABC
related to =
key size = 128 bits
block size = 128 bits
structure = Substitution-permutation network
rounds = 6
cryptanalysis =

In cryptography, MMB (Modular Multiplication-based Block cipher) is a block cipher designed by Joan Daemen as an improved replacement for the IDEA cipher. Modular multiplication is the central element in the design. Weaknesses in the key schedule were identified by Eli Biham, and this, together with the fact that the cipher had not been designed to resist linear cryptanalysis, meant that other designs were pursued instead, such as 3-Way.

MMB has a key size and block size of 128 bits.

References

* cite conference
author = J. Daemen, R. Govaerts, and J. Vandewalle
title = Block Ciphers Based on Modular Arithmetic
booktitle = Proceedings of the 3rd Symposium on: State and Progress of Research in Cryptography
pages = 80–89
publisher = Fondazione Ugo Bordoni
date = 1993
url = http://citeseer.ist.psu.edu/daemen93block.html
format = PDF/PostScript
accessdate = 2007-02-14
michael brian maddie

External links

* [http://www.ussrback.com/crypto/libraries/mmb/mmb.txt Paulo Barreto's comments on MMB]
* [http://www.esat.kuleuven.ac.be/~cosicart/ps/JD-9500/chapter11.ps.gz Chapter of Daemen's PhD thesis dealing with MMB] (Postscript format)


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