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Ron Rivest
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Ron Rivest

MIT cryptographer and the “R” in the RSA encryption system

6 May 1947 United States Verified by our editors
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79 yrs
Birthday in 181 days
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Ron Rivest is an American cryptographer at MIT who co-invented the RSA public-key encryption system with Adi Shamir and Leonard Adleman in 1977. RSA made secure online shopping and banking possible. He also designed the RC4 cipher and the MD5 hash and co-wrote a famous algorithms textbook.

Biography

Education

Rivest studied mathematics at Yale and earned his PhD in computer science at Stanford in 1974. He joined the MIT faculty that year.

RSA

In 1977, after reading about the Diffie–Hellman key exchange, Rivest, Shamir and Adleman searched for a practical public-key system. Rivest found the key idea — based on the difficulty of factoring large numbers — one night in April 1977. RSA lets anyone encrypt a message with a public key that only the holder of the private key can unlock, and it underpins secure websites and digital signatures.

RSA Security and ciphers

The three founded RSA Data Security in 1982. Rivest designed the RC2, RC4, RC5 and RC6 ciphers and the MD4 and MD5 hash functions, once used widely across the internet.

Teaching and voting

With Thomas Cormen, Charles Leiserson and Clifford Stein he wrote Introduction to Algorithms, one of the best-selling computer science textbooks. He has also worked on secure electronic voting.

Timeline

  1. 1947

    Born in Schenectady, New York, United States

  2. 1974

    PhD from Stanford; joins MIT

  3. 1977

    Invents RSA with Shamir and Adleman

  4. 1982

    Co-founds RSA Data Security

  5. 1987

    Designs the RC4 cipher

  6. 1990

    Introduction to Algorithms published

  7. 1992

    MD5 hash

  8. 2002

    Turing Award

Notable works

  • 1978

    A Method for Obtaining Digital Signatures and Public-Key Cryptosystems Paper

    The RSA paper.

  • 1990

    Introduction to Algorithms Book

    With Cormen, Leiserson and Stein.

Awards and honours

  • Paris Kanellakis Award

    1996

  • Turing Award

    2002

  • Marconi Prize

    2007

Did you know?

  1. 1

    The “R” in RSA stands for Rivest.

  2. 2

    Their textbook is often called “CLRS” after the authors’ initials.

  3. 3

    Alice and Bob, the famous characters in cryptography examples, first appeared in the RSA paper.

Connections

Related people

Frequently asked

Who is Ron Rivest?

Ron Rivest is an American cryptographer at MIT who co-invented the RSA public-key encryption system with Adi Shamir and Leonard Adleman in 1977. RSA made secure online shopping and banking possible. He also designed the RC4 cipher and the MD5 hash and co-wrote a famous algorithms textbook.

How old is Ron Rivest?

Ron Rivest is 79 years old, born on 6 May 1947 in Schenectady, New York, United States.

Where is Ron Rivest from?

Ron Rivest was born in Schenectady, New York, United States.

What is Ron Rivest known for?

Ron Rivest is best known for RSA public-key cryptography; RC4; MD5; co-author of Introduction to Algorithms; Turing Award 2002.

What awards has Ron Rivest received?

Notable honours include Paris Kanellakis Award (1996), Turing Award (2002), Marconi Prize (2007).

References

  1. Ron Rivest — Wikipedia. Wikipedia. Retrieved 4 November 2026.
  2. Ron Rivest — Britannica. Encyclopaedia Britannica. Retrieved 4 November 2026.
  3. Official website. people.csail.mit.edu. Retrieved 4 November 2026.
  4. Ron Rivest (Q578036) — structured data. Wikidata. Retrieved 4 November 2026.

Includes material from the Wikipedia article “Ron Rivest”, licensed under CC BY-SA 4.0. That text is available under the same licence. Learn more

External links

Official website Website Wikipedia
Filed under CryptographyMITRSATuring Award Computer ScientistCryptographerProfessor

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Cite this page

“Ron Rivest.” TrackFame, last updated 5 November 2026. https://trackfame.com/person/ron-rivest

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