Bart Preneel
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Bart Preneel is a Belgian cryptographer and cryptanalyst. He is a professor at Katholieke Universiteit Leuven, in the COSIC group, vice president of the International Association for Cryptologic Research, and project manager of ECRYPT.
Simultaneously with Shoji Miyaguchi, he invented the Miyaguchi-Preneel scheme, a robust structure used in hash functions such as Whirlpool. He is one of the authors of the RIPEMD-160 hash function. He was also a co-inventor of the stream cipher MUGI which later on went on to become a Japanese standard, and of the stream cipher Trivium which is a well-received entrant to the eSTREAM project.
He has also contributed to the cryptanalysis of RC4, SOBER-t32, MacGuffin, Helix, Phelix, Py, the HAVAL cryptographic hash function and the SecureID hash function, among others.