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Encyclopedia > MUGI

In cryptography, MUGI is a pseudorandom number generator (PRNG) designed for use as a stream cipher. It has been recommended for Japanese government use by the CRYPTREC project. Cryptography portal Cryptography (from Greek kryptós, hidden, and gráphein, to write) is, traditionally, the study of means of converting information from its normal, comprehensible form into an incomprehensible format, rendering it unreadable without secret knowledge — the art of encryption. ... A pseudorandom number generator (PRNG) is an algorithm that generates a sequence of numbers, the elements of which are approximately independent of each other. ... The operation of A5/1, a LFSR-based stream cipher used to encrypt mobile phone conversations. ... CRYPTREC is the Cryptography Research and Evaluation Committee set up by the Japanese Government to evaluate and recommend cryptographic techniques for government and industrial use. ...


MUGI takes a 128-bit secret key and a 128-bit initial value (IV). After a key- and IV- setup process, MUGI outputs 64-bit output strings based on the internal state, while updating the internal state after each output block. MUGI has a 1216-bit internal state; there are three 64-bit registers (the "state") and 16 64-bit registers (the "buffer"). A key is a piece of information that controls the operation of a cryptography algorithm. ...


MUGI uses the non-linear S-box that was originally defined in Advanced Encryption Standard (AES). A part of the linear transformation also reuses the MDS of AES. The basic design is influenced by that of Panama. In cryptography, a substitution box (or S-box) is a basic component of symmetric key algorithms. ... General Designer(s) Vincent Rijmen and Joan Daemen First published 1998 Derived from Square (cipher) Cipher(s) based on this design Crypton (cypher), Anubis (cipher), GRAND CRU Algorithm detail Block size(s) 128 bits note Key size(s) 128, 192 or 256 bits note Structure Substitution-permutation network Number of...


References

  • Dai Watanabe, Soichi Furuya, Kazuo Takaragi, Bart Preneel, ``A New Keystream Generator MUGI, Fast Software Encryption, 9th International Workshop, FSE2002,

External links

  • MUGI homepage (http://www.sdl.hitachi.co.jp/crypto/mugi/index-e.html)


Stream ciphers edit  (http://en.wikipedia.org/w/index.php?title=Template:Stream_ciphers&action=edit)
Algorithms: RC4 | A5/1 | A5/2 | Chameleon | FISH | Helix | ISAAC | LEVIATHAN | MUGI | Panama | Pike | SEAL | SOBER | SOBER-128 | WAKE
Theory: Shrinking generator

  Results from FactBites:
 
NYANGGAKEUN PANEDA (5902 words)
Kalimah anu kahiji, "Mugi abdi dinten ieu dipaparin tedaeun anu picekapeun," aya patalina sareng kaperyogian badani.
Sareng numutkeun paneda Al-Masih anu nilai sapa'atna langgeng kangge urang sadaya, "Mugi maranehna dijadikeun kagungan Ama anu disahkeun ku kaestuan.
Mugi maranehna dijadikeun kagungan Ama anu disahkeun ku kaestuan" (Yohanes 17: 9,11,17).
Mugi, Gifu - Wikipedia, the free encyclopedia (71 words)
Mugi (武儀町; -chou) was a town located in Mugi District, Gifu, Japan.
The town was dissolved after Mugi District was merged into the city of Seki.
As of 2003, the town had an estimated population of 4,038 and a density of 61.87 persons per km².
  More results at FactBites »

 
 

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