MUGI
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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.
MUGI takes a 128-bit secret key and a 128-bit initial vector (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").
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.
References
- Dai Watanabe, Soichi Furuya, Kazuo Takaragi, Bart Preneel, ``A New Keystream Generator MUGI,'' Fast Software Encryption, 9th International Workshop, FSE2002,
External links
| Stream ciphers [edit] |
| Algorithms: A5/1 | A5/2 | FISH | Grain | HC-256 | ISAAC | MUGI | Panama | Phelix | Pike | Py | Rabbit | RC4 | Salsa20 | Scream | SEAL | SOBER | SOBER-128 | SOSEMANUK | Trivium | VEST | WAKE |
| Theory: Shift register | LFSR | NLFSR | Shrinking generator |
| Misc: eSTREAM |
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