Cryptographers Cryptographers Major Franciszek Pokorny was a Polish Army officer who headed the Polish General Staff's Cipher Bureau before Major (eventually, Lt. Col.) Gwido Langer. ...more on Wikipedia about "Franciszek Pokorny"
William Gordon Welchman ( June 15, 1906 – October 8, 1985) was a British mathematician and World War II codebreaker at Bletchley Park. Welchman envisioned an enhancement to Alan Turing's design for an electromechanical codebreaking machine, the bombe. Welchman's enhancement, the "diagonal board," rendered the device more efficient in breaking messages enciphered on the German Enigma machine. Bombes became a primary tool for decrypting Enigma during the war. ...more on Wikipedia about "Gordon Welchman"
Lt. Col. Karol Gwido Langer (died March 30, 1948) was chief of the Polish General Staff's Cipher Bureau from at least mid- 1931. By then, according to Polish military historian Władysław Kozaczuk, the Bureau had been formed by merger of the Radio Intelligence Office and the Polish-Cryptography Office. Langer remained at the head of the Cipher Bureau and its successor field agency until the latter was effectively disbanded in November 1942 upon the German occupation of southern France's Vichy "Free Zone." ...more on Wikipedia about "Gwido Langer"
Hans-Thilo Schmidt ( 13 May 1888 – 1943) codenamed Asché or Source D, was a spy who, during the 1930s, sold secrets about the Germans' Enigma machine to the French. The materials he provided facilitated Polish mathematician Marian Rejewski's reconstruction of the wiring in the Enigma's rotors and reflector; thereafter the Poles were able to read a large proportion of Enigma-enciphered traffic. ...more on Wikipedia about "Hans-Thilo Schmidt"
Hugo Alexander Koch ( 1869 or 1870 – 1928) was a Dutch inventor who conceived of and patented an idea for machine encryption — the rotor machine, although he was not the first to do so. He is sometimes erroneously credited as the originator of the Enigma machine, although this has been shown to be the work of German engineer Arthur Scherbius. ...more on Wikipedia about "Hugo Koch"
James Harris (Jim) Simons is a cryptanalyst, mathematical physicist, academic, investment advisor, billionaire and philanthropist. In 1982, Simons founded Renaissance Technologies Corporation, a private investment firm based in New York with over $4 billion under management; Simons is still at the helm, as president, of what is now one of the world's most successful hedge funds. Simons earned $670 million last year, according to an industry source. ...more on Wikipedia about "James Harris Simons"
Lt. Col. Jan Kowalewski (1892-1965) was a Polish cryptologist, spy, journalist, engineer and military commander, as well as the creator and first head of the Cipher Bureau of the Polish intelligence. He was responsible for breaking the Bolshevik military ciphers during the Polish-Bolshevik War, which made possible the Polish success in the battle of Warsaw of 1920. ...more on Wikipedia about "Jan Kowalewski" Come again to www.shortopedia.com
John Kelsey is a cryptographer currently working at NIST. His research interests include cryptanalysis and design of symmetric cryptography primitives ( block ciphers, stream ciphers, cryptographic hash functions, MACs), analysis and design of cryptographic protocols, cryptographic random number generation, electronic voting, side-channel attacks on cryptography implementations, and anonymizing communications systems. He previously worked at Certicom and Counterpane Internet Security. ...more on Wikipedia about "John Kelsey (cryptanalyst)"
(List of cryptographers) ==Pre-19th century== ...more on Wikipedia about "List of cryptographers"
Maksymilian Ciężki ( 1899 – November 9, 1951; ) was the head of the German section of the Polish Cipher Bureau in the 1930s, during which time (from December 1932) the Bureau decrypted German Enigma messages. During the German invasion of Poland in September 1939, Ciężki escaped to France to continue work on Enigma ciphers, and in 1943 was captured by the Germans and interned in an SS concentration camp. ...more on Wikipedia about "Maksymilian Ciężki"
Piotr Smoleński (died January 9, 1942) was a cryptologist in the Russian section (B.S.-3) of the interbellum Polish General Staff's Cipher Bureau. ...more on Wikipedia about "Piotr Smoleński"
Robert McEliece is a mathematician and engineering professor at the California Institute of Technology best known for his work in information theory. He was one of the important contributors to the development of a decoder of long-constraint-length (K=13, K=15) convolutional codes, which were added to the Galileo spacecraft upon the redesign of its mission, following the 1986 crash of the space-shuttle. ...more on Wikipedia about "Robert McEliece"
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