43 relations: Adolf Hitler, Allies of World War II, Amateur radio operator, Antoni Palluth, Biuro Szyfrów, Bomba (cryptography), Call sign, Card catalog (cryptology), Christopher Kasparek, Cipher, Cost-plus contract, Cryptanalysis of the Enigma, Cryptography, Cyclometer, Edward Fokczyński, Electronics, Enigma machine, Germany, Gwido Langer, Kabaty, Lacida, Leonard Danilewicz, List of cryptographers, Ludomir Danilewicz, Maksymilian Ciężki, Marian Rejewski, Mathematician, Military intelligence, Mokotów, Nowy Świat Street, Poland, Polish General Staff, Polish language, Polish Navy, Radio astronomy, Rotor machine, Saxon Palace, Shortwave radio, Ultra, Warsaw, Warsaw University of Technology, Władysław Kozaczuk, World War II.
Adolf Hitler (20 April 1889 – 30 April 1945) was a German politician, demagogue, and revolutionary, who was the leader of the Nazi Party (Nationalsozialistische Deutsche Arbeiterpartei; NSDAP), Chancellor of Germany from 1933 to 1945 and Führer ("Leader") of Nazi Germany from 1934 to 1945.
The Allies of World War II, called the United Nations from the 1 January 1942 declaration, were the countries that together opposed the Axis powers during the Second World War (1939–1945).
An amateur radio operator is someone who uses equipment at an amateur radio station to engage in two-way personal communications with other amateur operators on radio frequencies assigned to the amateur radio service.
Antoni Palluth (11 May 1900, Pobiedziska, Province of Posen – 18 April 1944), was a founder of the AVA Radio Company.
The Biuro Szyfrów (Polish for "Cipher Bureau") was the interwar Polish General Staff's Second Department's unit charged with SIGINT and both cryptography (the use of ciphers and codes) and cryptanalysis (the study of ciphers and codes, for the purpose of "breaking" them).
The bomba, or bomba kryptologiczna (Polish for "bomb" or "cryptologic bomb") was a special-purpose machine designed about October 1938 by Polish Cipher Bureau cryptologist Marian Rejewski to break German Enigma-machine ciphers.
In broadcasting and radio communications, a call sign (also known as a call name or call letters—and historically as a call signal—or abbreviated as a call) is a unique designation for a transmitter station.
The card catalog, or "catalog of characteristics," in cryptography, was a system designed by Polish Cipher Bureau mathematician-cryptologist Marian Rejewski, and first completed about 1935 or 1936, to facilitate decrypting German Enigma ciphers.
Christopher Kasparek (born 1945) is a Scottish-born writer of Polish descent who has translated works by numerous authors, including Ignacy Krasicki, Bolesław Prus, Florian Znaniecki, Władysław Tatarkiewicz, Marian Rejewski, and Władysław Kozaczuk, as well as the Polish-Lithuanian Constitution of 3 May 1791.
In cryptography, a cipher (or cypher) is an algorithm for performing encryption or decryption—a series of well-defined steps that can be followed as a procedure.
A cost-plus contract, also termed a cost reimbursement contract, is a contract where a contractor is paid for all of its allowed expenses, plus additional payment to allow for a profit.
Cryptanalysis of the Enigma ciphering system enabled the western Allies in World War II to read substantial amounts of Morse-coded radio communications of the Axis powers that had been enciphered using Enigma machines.
Cryptography or cryptology (from κρυπτός|translit.
The cyclometer was a cryptologic device designed, "probably in 1934 or 1935," by Marian Rejewski of the Polish Cipher Bureau's German section (BS-4) to facilitate decryption of German Enigma ciphertext.
Edward Fokczyński was one of the four directors of the AVA Radio Company, an electronics firm established in Warsaw, Poland, in 1929.
Electronics is the discipline dealing with the development and application of devices and systems involving the flow of electrons in a vacuum, in gaseous media, and in semiconductors.
The Enigma machines were a series of electro-mechanical rotor cipher machines developed and used in the early- to mid-20th century to protect commercial, diplomatic and military communication.
Germany (Deutschland), officially the Federal Republic of Germany (Bundesrepublik Deutschland), is a sovereign state in central-western Europe.
Kabaty is a neighborhood in Ursynów, the southernmost district of Warsaw.
The Lacida (or LCD) was a Polish rotor cipher machine.
Leonard Stanisław Danilewicz was a Polish engineer and, for some ten years before the outbreak of World War II, one of the four directors of the AVA Radio Company in Warsaw, Poland.
List of cryptographers.
Ludomir Danilewicz was a Polish engineer and, for some ten years before the outbreak of World War II, one of the four directors of the AVA Radio Company in Warsaw, Poland.
Maksymilian Ciężki (Samter, Province of Posen (now Szamotuły, Poland), 24 November 1898 – 9 November 1951 in London, England) was the head of the Polish Cipher Bureau's German section (BS–4) in the 1930s, during which time—from December 1932—the Bureau decrypted German Enigma messages.
Marian Adam Rejewski (16 August 1905 – 13 February 1980) was a Polish mathematician and cryptologist who reconstructed the Nazi German military Enigma cipher machine sight-unseen in 1932.
A mathematician is someone who uses an extensive knowledge of mathematics in his or her work, typically to solve mathematical problems.
Military intelligence is a military discipline that uses information collection and analysis approaches to provide guidance and direction to assist commanders in their decisions.
Mokotów is a dzielnica (borough, district) of Warsaw, the capital of Poland.
Ulica Nowy Świat (New World Street) is one of the main historic thoroughfares of Warsaw.
Poland (Polska), officially the Republic of Poland (Rzeczpospolita Polska), is a country located in Central Europe.
Polish General Staff, also the General Staff of the Polish Armed Forces (Polish: Sztab Generalny Wojska Polskiego) is the highest professional body within the Polish Armed Forces.
Polish (język polski or simply polski) is a West Slavic language spoken primarily in Poland and is the native language of the Poles.
The Polish Navy (Marynarka Wojenna, "War Navy") is a military branch of the Polish Armed Forces responsible for naval operations.
Radio astronomy is a subfield of astronomy that studies celestial objects at radio frequencies.
In cryptography, a rotor machine is an electro-mechanical stream cipher device used for encrypting and decrypting secret messages.
The Saxon Palace (pałac Saski w Warszawie) was one of the most distinctive buildings in prewar Warsaw, Poland.
Shortwave radio is radio transmission using shortwave radio frequencies.
Ultra was the designation adopted by British military intelligence in June 1941 for wartime signals intelligence obtained by breaking high-level encrypted enemy radio and teleprinter communications at the Government Code and Cypher School (GC&CS) at Bletchley Park.
Warsaw (Warszawa; see also other names) is the capital and largest city of Poland.
Władysław Kozaczuk (23 December 1923 – 26 September 2003) was a Polish Army colonel and a military and intelligence historian.
World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although conflicts reflecting the ideological clash between what would become the Allied and Axis blocs began earlier.