Manuel Blum (born 26 April 1938) is a computer scientist who received the Turing Award in 1995 "In recognition of his contributions to the foundations of computational complexity theory and its application to cryptography and program checking".
Some of his work includes the Blum Blum Shub pseudorandom number generator, the Blum-Goldwasser stream cypher, and more recently Captchas.
Blum attended MIT, where he received his bachelor's degree in 1959, his master's degree in 1961, and his Ph.D. in 1964 under professor Marvin Minsky.
He worked as a professor of computer science at the University of California, Berkeley until 2000.
He is currently the Bruce Nelson Professor of Computer Science at Carnegie Mellon University.
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