MESH (cipher)

MESH (cipher)

Infobox block cipher
name = MESH
designers = Nakahara, Rijmen, Preneel, Vandewalle
publish date = 2002
derived from = IDEA
key size = 128, 192, or 256 bits
block size = 64, 96, or 128 bits
structure = Substitution-permutation network
rounds = 8.5, 10.5, or 12.5
cryptanalysis = 2 rounds can be broken using 128, 161, or 225 known plaintexts

In cryptography, MESH is a block cipher designed in 2002 by Jorge Nakahara, Jr., Vincent Rijmen, Bart Preneel, and Joos Vandewalle. MESH is based directly on IDEA and uses the same basic operations.

MESH is actually a family of 3 variant ciphers with block sizes of 64, 96, and 128 bits. The key size is twice the block size. The number of rounds is 8.5, 10.5, or 12.5, depending on the block size. The algorithm uses a substitution-permutation network based on IDEA's, but with a larger round structure, or "MA-box". MESH also has a more complex key schedule than IDEA, intended to prevent weak keys and other insecure patterns in subkeys.

References

* cite paper
author = J. Nakahara, Jr, V. Rijmen, B. Preneel, J. Vandewalle
title = The MESH Block Ciphers
date = 2002
url = http://citeseer.ist.psu.edu/nakahara02mesh.html
format = PDF/PostScript
accessdate = 2007-02-08
* cite paper
author = J. Nakahara Jr., B. Preneel, and J. Vandewalle
title = The Biryukov-Demirci Attack on IDEA and MESH Ciphers
date = 2003
url = http://citeseer.ist.psu.edu/600837.html
format = PDF/PostScript
accessdate = 2007-10-04


Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Mesh (cryptographie) — MESH [[Image:|none|240px]] Résumé Concepteur(s) Nakahara, Rijmen, Preneel, Vandewalle …   Wikipédia en Français

  • MESH (cryptographie) — MESH Résumé Concepteur(s) Nakahara, Rijmen, Preneel, Vandewalle Première publication 2002 Dérivé de IDEA Chiffrement(s) basé(s) sur cet algorithme …   Wikipédia en Français

  • Mesh (disambiguation) — Mesh or MESH can refer to: Mesh, a type of material Mesh (scale), a measurement scale for small particles Mesh (band), a British synthpop band Mesh STL (now known as Modern Day Zero), a St. Louis rock band Mesh (mathematics), a concept in… …   Wikipedia

  • Cipher security summary — This article summarizes publicly known attacks against ciphers. Note that not all entries may be up to date. Table color key No known successful attacks Theoretical break Attack demonstrated in practice The Best attack column lists the complexity …   Wikipedia

  • Block cipher modes of operation — This article is about cryptography. For method of operating , see modus operandi. In cryptography, modes of operation is the procedure of enabling the repeated and secure use of a block cipher under a single key.[1][2] A block cipher by itself… …   Wikipedia

  • Block cipher — In cryptography, a block cipher is a symmetric key cipher operating on fixed length groups of bits, called blocks, with an unvarying transformation. A block cipher encryption algorithm might take (for example) a 128 bit block of plaintext as… …   Wikipedia

  • Cryptomeria cipher — The Feistel function of the Cryptomeria cipher. General Designers 4C Entity First published …   Wikipedia

  • Mercy (cipher) — This article is about the block cipher. For other uses, see Mercy (disambiguation). Mercy General Designers Paul Crowley First published April 2000[1] Derived from WAKE …   Wikipedia

  • DFC (cipher) — This article is about the block cipher. For other uses, see DFC (disambiguation). DFC General Designers Jacques Stern, Serge Vaudenay, et al. First published 1998 Related to COCONUT98 Cipher detail …   Wikipedia

  • Crab (cipher) — This article is about the block cipher. For other uses, see Crab (disambiguation). Crab General Designers Burt Kaliski, Matt Robshaw First published 1993 Derived from MD5 Related to SHACAL …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”