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Ron Rivest

Ronald Linn Rivest (/rɪˈvɛst/; born May 6, 1947) is an American cryptographer and computer scientist whose work has spanned the fields of algorithms and combinatorics, cryptography, machine learning, and election integrity. He is an Institute Professor at the Massachusetts Institute of Technology (MIT), and a member of MIT's Department of Electrical Engineering and Computer Science and its Computer Science and Artificial Intelligence Laboratory.

Along with Adi Shamir and Len Adleman, Rivest is one of the inventors of the RSA algorithm. He is also the inventor of the symmetric key encryption algorithms RC2, RC4, and RC5, and co-inventor of RC6. (RC stands for "Rivest Cipher".) He also devised the MD2, MD4, MD5 and MD6 cryptographic hash functions.

Rivest earned a bachelor's degree in mathematics from Yale University in 1969, and a Ph.D. degree in computer science from Stanford University in 1974 for research supervised by Robert W. Floyd.

At MIT, Rivest is a member of the Theory of Computation Group, and founder of MIT CSAIL's Cryptography and Information Security Group.

Rivest was a founder of RSA Data Security (now merged with Security Dynamics to form RSA Security), Verisign, and of Peppercoin.

His former doctoral students include Avrim Blum, Benny Chor, Sally Goldman, Burt Kaliski, Anna Lysyanskaya, Margrit Betke, Ron Pinter, Robert Schapire, Alan Sherman, and Mona Singh.

Rivest is especially known for his research in cryptography. He has also made significant contributions to algorithm design, to the computational complexity of machine learning, and to election security.

The publication of the RSA cryptosystem by Rivest, Adi Shamir, and Leonard Adleman in 1978[C1] revolutionized modern cryptography by providing the first usable and publicly described method for public-key cryptography. The three authors won the 2002 Turing Award, the top award in computer science, for this work. The award cited "their ingenious contribution to making public-key cryptography useful in practice". The same paper that introduced this cryptosystem also introduced Alice and Bob, the fictional heroes of many subsequent cryptographic protocols. In the same year, Rivest, Adleman, and Michael Dertouzos first formulated homomorphic encryption and its applications in secure cloud computing,[C2] an idea that would not come to fruition until over 40 years later when secure homomorphic encryption algorithms were finally developed.

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American cryptographer
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