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Famous Cryptographers
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Claude Shannon
Laid the groundwork for modern cryptography, information theory, and notably published 'A Mathematical Theory of Communication'.
Adi Shamir
Co-inventor of the RSA algorithm, which is foundational for secure internet transactions.
Ron Rivest
Co-inventor of the RSA encryption algorithm and one of the creators of the MD4 and MD5 cryptographic hash functions.
Leonard Adleman
Co-inventor of the RSA encryption algorithm and a pioneer in the field of DNA computing.
Diffie and Hellman
Introduced the concept of public-key cryptography with the Diffie-Hellman key exchange protocol.
Ralph Merkle
Known for creating the Merkle-Damgård construction, a foundational concept in hash function design.
Elizebeth Smith Friedman
A pioneering female cryptanalyst who made significant contributions to breaking German ciphers during World War II.
Bruce Schneier
Created the Blowfish and Twofish encryption algorithms; well-known for his writings on cryptography and security.
David Chaum
Known for inventing many cryptographic protocols, including mix networks for anonymous communications.
Whitfield Diffie
Co-developer of the Diffie-Hellman key exchange protocol and a pioneer of public-key cryptography.
Martin Hellman
Co-developer of the Diffie-Hellman key exchange protocol, contributing significantly to the development of asymmetric key cryptography.
William F. Friedman
Considered one of America's premier cryptologists; worked extensively on solving Japanese ciphers in WWII.
Alan Turing
Famous for his machine (Turing machine) and breaking the Enigma machine's codes during WWII.
Auguste Kerckhoffs
Developed Kerckhoffs's principle which dictates that a cryptosystem should be secure even if everything about the system is public knowledge except the key.
Julius Caesar
Developed the Caesar cipher, one of the earliest known encryption techniques.
Charles Babbage
Known for breaking the Vigenère cipher, which was previously considered unbreakable.
Horst Feistel
Pioneer of non-linear substitution-permutation network design which led to the creation of the Lucifer and Data Encryption Standard (DES) algorithms.
Claude Elwood Shannon
Proved the one-time pad cipher to be unbreakable, formulated the concept of entropy in information theory.
Friedrich L. Bauer
Pioneered concepts in algorithmic cryptology and was involved in the development of the stack principle.
Joan Clarke
Worked with Alan Turing on breaking Enigma during WWII and made significant contributions to cryptographic analysis.
Paul Kocher
Known for his work on cryptographic attacks, particularly differential power analysis (DPA) and timing attacks.
Jean-Jacques Quisquater
Known for his contributions to the cryptanalysis of public key cryptosystems and the invention of cryptographic protocols such as the Guillou-Quisquater protocol.
Carl Friedrich Gauss
Well known for his contributions to number theory, which have applications in modern cryptosystems, particularly public key cryptography.
Taher Elgamal
Known for his work in the design of the ElGamal discrete log encryption system, which is widely used in various cryptographic schemes.
Lars Knudsen
Cryptographer known for his research into the design and analysis of block ciphers, stream ciphers, and hash functions.
Yehuda Lindell
Renowned for his research in secure multi-party computation, which enables parties to jointly compute a function over their inputs while keeping those inputs private.
Phil Zimmermann
Creator of Pretty Good Privacy (PGP), the most widely used email encryption software in the world.
Ross Anderson
Known for his work on security engineering and for pioneering the study of API security, banking security, and the economics of security.
Daniel J. Bernstein
He created the Salsa20 stream cipher and the Poly1305 message authentication code, and actively promotes the use of safer, more secure cryptographic algorithms.
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