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Erich Hüttenhain
Erich Hüttenhain (26 January 1905 in Siegen – 1 December 1990 in Brühl) was a German academic mathematician and cryptographer and considered a leading cryptanalyst in the Third Reich. He was Head of the cryptanalysis unit at OKW/Chi, the Cipher Department of the High Command of the Wehrmacht. Life Hüttenhain was the son of a conrector and studied after the high school diploma () 1924 in Siegen at the University of Marburg, the Johann Wolfgang Goethe-University Frankfurt and the University of Münster. He studied mathematics with Heinrich Behnke and astronomy at Münster. There he was assistant to (1880–1967), who was director of the observatory at Münster. In 1933, at the University of Münster, he took his examination for promotion of Dr. phil. in astronomy under Lindow with the thesis titled: ''Spatial infinitesimal orbits around the libration points in the straight-line case of the (3 + 1) bodies''. Military career In 1936, he was sent to the cipher bureau of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siegen
Siegen () is a List of cities and towns in Germany, city in Germany, in the south Westphalian part of North Rhine-Westphalia. It is located in the district of Siegen-Wittgenstein in the Arnsberg (region), Arnsberg region. The university town (nearly 20,000 students in the 2018–2019 winter semester) is the district seat, and is ranked as a "higher centre" in the South Westphalian urban agglomeration. In 1975, municipal reforms and amalgamations lifted Siegen's population above the 100,000 mark. Geography Location The city of Siegen lies in the basin of the upper reaches of the river Sieg (river), Sieg. From there, lateral valleys branch off in many directions. The heights of the surrounding mountains, wherever they are not actually settled, are covered in Coppicing, coppice. To the north lies the Sauerland, to the northwest the Rothaargebirge and to the southwest the Westerwald. The nearest cities to Siegen, taking into account average travelling distances, are Hagen to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Purple (cipher Machine)
The "System 97 Typewriter for European Characters" (九七式欧文印字機 ''kyūnana-shiki ōbun injiki'') or "Type B Cipher Machine", codenamed Purple by the United States, was an encryption machine used by the Japanese Foreign Office from February 1939 to the end of World War II. The machine was an electromechanical device that used stepping-switches to encrypt the most sensitive diplomatic traffic. All messages were written in the 26-letter English alphabet, which was commonly used for telegraphy. Any Japanese text had to be transliterated or coded. The 26-letters were separated using a plug board into two groups, of six and twenty letters respectively. The letters in the sixes group were scrambled using a 6 × 25 substitution table, while letters in the twenties group were more thoroughly scrambled using three successive 20 × 25 substitution tables. The cipher codenamed "Purple" replaced the Type A Red machine previously used by the Japanese Foreign Office. The si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burschenschaft
A Burschenschaft (; sometimes abbreviated in the German ''Burschenschaft'' jargon; plural: ) is one of the traditional (student associations) of Germany, Austria, and Chile (the latter due to German cultural influence). Burschenschaften were founded in the 19th century as associations of university students inspired by liberal and nationalistic ideas. They were significantly involved in the March Revolution and the unification of Germany. After the formation of the German Empire in 1871, they faced a crisis, as their main political objective had been realized. So-called were established, but these were dissolved by the Nazi regime in 1935/6. In West Germany, the were re-established in the 1950s, but they faced a renewed crisis in the 1960s and 1970s, as the mainstream political outlook of the German student movement of that period started leaning more towards the left. Roughly 160 exist today in Germany, Austria and Chile. History Origins The very first one, called (" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nazi Germany
Nazi Germany, officially known as the German Reich and later the Greater German Reich, was the German Reich, German state between 1933 and 1945, when Adolf Hitler and the Nazi Party controlled the country, transforming it into a Totalitarianism, totalitarian dictatorship. The Third Reich, meaning "Third Realm" or "Third Empire", referred to the Nazi claim that Nazi Germany was the successor to the earlier Holy Roman Empire (800–1806) and German Empire (1871–1918). The Third Reich, which the Nazis referred to as the Thousand-Year Reich, ended in May 1945, after 12 years, when the Allies of World War II, Allies defeated Germany and entered the capital, Berlin, End of World War II in Europe, ending World War II in Europe. After Hitler was appointed Chancellor of Germany in 1933, the Nazi Party began to eliminate political opposition and consolidate power. A 1934 German referendum confirmed Hitler as sole ''Führer'' (leader). Power was centralised in Hitler's person, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otto Leiberich
Otto Leiberich (5 December 1927 in Crailsheim - 23 June 2015) was a German cryptologist and mathematician. Leiberich is most notable for establishing the Bundesamt für Sicherheit in der Informationstechnik in 1991. Life Leiberich started his career during World War II, conscripted as a soldier and working as a cryptanalyst in Chi IV of the OKW/Chi. After studying mathematics and physics at the University of Cologne, Leiberich earned a Dr. phil. in 1953 at the same university with a topic on algebra; his thesis (, On systems of Jarden sequences) was supervised by Guido Hoheisel. Leiberich joined the newly established post war German cipher bureau that from 1956 on was called the ''Central Cryptography Office'' ( (ZfCh)). Dr Erich Hüttenhain was his director, both in OKW/Chi and in the new bureau. Career During the Cold War Leiberich and his team worked intensively on the cryptanalysis of double transposition ciphers. One of their results led in 1974 to the discovery o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gehlen Organization
The Gehlen Organization or Gehlen Org (often referred to as The Org) was an intelligence agency established in June 1946 by U.S. occupation authorities in the United States zone of post-war occupied Germany, and consisted of former members of the 12th Department of the German Army General Staff ( Foreign Armies East, or FHO). It was headed by Reinhard Gehlen who had previously been a Wehrmacht Major General and head of the Nazi German military intelligence in the Eastern Front during World War II. The agency was a precursor to the Bundesnachrichtendienst (BND or Federal Intelligence Service) which was formed in 1956. Establishment After World War II, Reinhard Gehlen acted under the tutelage of US Army G-2 (intelligence), but he wished to establish an association with the Central Intelligence Agency (CIA). In 1947, in alliance with the CIA, the military orientation of the organization turned increasingly toward political, economic and technical espionage against the Eastern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enigma Machine
The Enigma machine is a cipher device developed and used in the early- to mid-20th century to protect commercial, diplomatic, and military communication. It was employed extensively by Nazi Germany during World War II, in all branches of the Wehrmacht, German military. The Enigma machine was considered so secure that it was used to encipher the most top-secret messages. The Enigma has an electromechanical Rotor machine, rotor mechanism that scrambles the 26 letters of the alphabet. In typical use, one person enters text on the Enigma's keyboard and another person writes down which of the 26 lights above the keyboard illuminated at each key press. If plaintext is entered, the illuminated letters are the ciphertext. Entering ciphertext transforms it back into readable plaintext. The rotor mechanism changes the electrical connections between the keys and the lights with each keypress. The security of the system depends on machine settings that were generally changed daily, based ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TICOM
TICOM (Target Intelligence Committee) was a secret Allied project formed in World War II to find and seize German intelligence assets, particularly in the field of cryptology and signals intelligence. It operated alongside other Western Allied efforts to extract German scientific and technological information and personnel during and after the war, including Operation Paperclip (for rocketry), Operation Alsos (for nuclear information) and Operation Surgeon (for avionics). History The project was initiated by the British, but when the US Army Chief of Staff General George Marshall learnt of it, it soon became Anglo-American. The aim was to seek out and capture the cryptologic secrets of Germany. The concept was for teams of cryptologic experts, mainly drawn from the code-breaking center at Bletchley Park, to enter Germany with the front-line troops and capture the documents, technology and personnel of the various German signal intelligence organizations before these precious ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SIGABA
In the history of cryptography, the ECM Mark II was a cipher machine used by the United States for message encryption from World War II until the 1950s. The machine was also known as the SIGABA or Converter M-134 by the Army, or CSP-888/889 by the Navy, and a modified Navy version was termed the CSP-2900. Like many machines of the era it used an electromechanical system of rotors to encipher messages, but with a number of security improvements over previous designs. No successful cryptanalysis of the machine during its service lifetime is publicly known. History It was clear to US cryptographers well before World War II that the single-stepping mechanical motion of rotor machines (e.g. the Hebern machine) could be exploited by attackers. In the case of the famous Enigma machine, these attacks were supposed to be upset by moving the rotors to random locations at the start of each new message. This, however, proved not to be secure enough, and German Enigma messages were freque ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allied Invasion Of Italy
The Allied invasion of Italy was the Allies of World War II, Allied Amphibious warfare, amphibious landing on mainland Italy that took place from 3 September 1943, during the Italian campaign (World War II), Italian campaign of World War II. The operation was undertaken by General (United Kingdom), General Harold Alexander, 1st Earl Alexander of Tunis, Sir Harold Alexander's 15th Army Group (comprising General (United States), General Mark W. Clark's Fifth United States Army, American Fifth Army and General Bernard Montgomery's Eighth Army (United Kingdom), British Eighth Army) and followed the successful Allied invasion of Sicily. The main invasion force landed on the west coast of Italy at Salerno on 9 September as part of Operation Avalanche, while two supporting operations took place in Calabria (Operation Baytown) and Taranto (Operation Slapstick). Background Allied plan Following the defeat of the Axis powers in Tunisian campaign, North Africa in May 1943, there was di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Africa
North Africa (sometimes Northern Africa) is a region encompassing the northern portion of the African continent. There is no singularly accepted scope for the region. However, it is sometimes defined as stretching from the Atlantic shores of the Western Sahara in the west, to Egypt and Sudan's Red Sea coast in the east. The most common definition for the region's boundaries includes Algeria, Egypt, Libya, Morocco, Tunisia, and Western Sahara, the territory territorial dispute, disputed between Morocco and the list of states with limited recognition, partially recognized Sahrawi Arab Democratic Republic. The United Nations’ definition includes all these countries as well as Sudan. The African Union defines the region similarly, only differing from the UN in excluding the Sudan and including Mauritania. The Sahel, south of the Sahara, Sahara Desert, can be considered as the southern boundary of North Africa. North Africa includes the Spanish cities of Ceuta and Melilla, and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
