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| - Richard C. Schroeppel (* 1948 nahe Chicago in Illinois) ist ein US-amerikanischer Informatiker und Mathematiker, der sich mit Algorithmischer Zahlentheorie und Kryptographie beschäftigt. Schroeppel studierte am MIT, wo er 1968 seinen Bachelor-Abschluss machte. 1966 und 1967 war er dort Putnam Fellow. 1991 bis 1998 forschte er zu Computer-Sicherheitsfragen an der University of Arizona. Zurzeit arbeitet er an den Sandia National Laboratories. In den 1970er Jahren arbeitete er unter anderem mit Whitfield Diffie und Martin Hellman in Stanford an der Analyse der Sicherheit des DES. (de)
- Richard C. Schroeppel (born 1948) is an American mathematician born in Illinois. His research has included magic squares, elliptic curves, and cryptography. In 1964, Schroeppel won first place in the United States among over 225,000 high school students in the Annual High School Mathematics Examination, a contest sponsored by the Mathematical Association of America and the Society of Actuaries. In both 1966 and 1967, Schroeppel scored among the top 5 in the U.S. in the William Lowell Putnam Mathematical Competition. In 1973 he discovered that there are 275,305,224 normal magic squares of order 5. In 1998–1999 he designed the Hasty Pudding Cipher which was a candidate for the Advanced Encryption Standard, and he is one of the designers of the SANDstorm hash, a submission to the NIST SHA-3 c (en)
- Richard C. Schroeppel (Illinois, 1948) é um matemático estadunidense. Suas pesquisas incluem quadrados mágicos, curvas elípticas e criptografia. Em 1964 Schroeppel conquistou o primeiro lugar nos Estados Unidos entre mais de 225.000 estudantes do ensino médio no Annual High School Mathematics Examination, um concurso patrocinado pela Mathematical Association of America e pela . Em 1966 e 1967 Schroeppel ficou entre os 5 primeiros nos Estados Unidos na . Em 1973 descobriu que existem 275.305.224 quadrados mágicos normais da ordem 5. Em 1998–1999 projetou a , candidata ao Advanced Encryption Standard, sendo um dos designers da , uma submissão à . (pt)
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