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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 (german: "Über Systeme von Jardenschen Folgen", 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'' (german: Zentralstelle für das Chiffrierwesen (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 crypt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crailsheim
Crailsheim is a town in the German state of Baden-Württemberg. Incorporated in 1338, it lies east of Schwäbisch Hall and southwest of Ansbach in the Schwäbisch Hall district. The city's main attractions include two Evangelical churches, a Catholic church, and the 67 metre tower of its town hall. History Crailsheim is famed for withstanding a siege by forces of three imperial cities - Schwäbisch Hall, Dinkelsbühl, and Rothenburg ob der Tauber - lasting from 1379 until 1380, a feat which it celebrates annually. Crailsheim became a possession of the Burgrave of Nuremberg following the siege. In 1791 it became part of the Prussian administrative region, before returning to Bavaria in 1806 and becoming a part of Württemberg in 1810. Crailsheim's railroad and airfield were heavily defended by the Waffen-SS during World War II. Following an American assault in mid-April 1945, the town was occupied briefly by US forces before being lost to a German counter-offensive. Intense U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Günter Guillaume
Günter Guillaume (1 February 1927 – 10 April 1995) was a German spy who gathered intelligence as an agent for East Germany's secret service, the Stasi, in West Germany. Guillaume became West German chancellor Willy Brandt's secretary, and his discovery as a spy in 1973 led to Brandt's downfall in the Guillaume affair. Early life Günter Karl Heinz Guillaume was born on 1 February 1927, at 31 Choriner Straße in Prenzlauer Berg, then a working-class district of Berlin. He was the only child of Karl Ernst Guillaume, a pianist who played in bars and theatres, where he provided background music for silent films, and Johanna Old Pauline (), a hairdresser. His parents, who had married four months before Günter's birth, were both native to Berlin. Due to the combination of the Great Depression and the introduction of sound films, the Guillaumes suffered financial hardship. These experiences made the extremist policies being presented by Adolf Hitler and Nazi Party attractive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Cryptographers
German(s) may refer to: * Germany (of or related to) ** Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Germanic peoples (Roman times) * German language **any of the Germanic languages * German cuisine, traditional foods of Germany People * German (given name) * German (surname) * Germán, a Spanish name Places * German (parish), Isle of Man * German, Albania, or Gërmej * German, Bulgaria * German, Iran * German, North Macedonia * German, New York, U.S. * Agios Germanos, Greece Other uses * German (mythology), a South Slavic mythological being * Germans (band), a Canadian rock band * "German" (song), a 2019 song by No Money Enterprise * ''The German'', a 2008 short film * "The Germans", an episode of ''Fawlty Towers'' * ''The German'', a nickname for Congolese rebel André Kisase Ngandu See also * Germanic (other) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2015 Deaths
This is a list of deaths of notable people, organised by year. New deaths articles are added to their respective month (e.g., Deaths in ) and then linked here. 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 See also * Lists of deaths by day The following pages, corresponding to the Gregorian calendar, list the historical events, births, deaths, and holidays and observances of the specified day of the year: Footnotes See also * Leap year * List of calendars * List of non-standard ... * Deaths by year {{DEFAULTSORT:deaths by year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1927 Births
Nineteen or 19 may refer to: * 19 (number), the natural number following 18 and preceding 20 * one of the years 19 BC, AD 19, 1919, 2019 Films * ''19'' (film), a 2001 Japanese film * ''Nineteen'' (film), a 1987 science fiction film Music * 19 (band), a Japanese pop music duo Albums * ''19'' (Adele album), 2008 * ''19'', a 2003 album by Alsou * ''19'', a 2006 album by Evan Yo * ''19'', a 2018 album by MHD * ''19'', one half of the double album ''63/19'' by Kool A.D. * ''Number Nineteen'', a 1971 album by American jazz pianist Mal Waldron * ''XIX'' (EP), a 2019 EP by 1the9 Songs * "19" (song), a 1985 song by British musician Paul Hardcastle. * "Nineteen", a song by Bad4Good from the 1992 album '' Refugee'' * "Nineteen", a song by Karma to Burn from the 2001 album ''Almost Heathen''. * "Nineteen" (song), a 2007 song by American singer Billy Ray Cyrus. * "Nineteen", a song by Tegan and Sara from the 2007 album '' The Con''. * "XIX" (song), a 2014 song by Slipk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dictionary Attack
In cryptanalysis and computer security, a dictionary attack is an attack using a restricted subset of a keyspace to defeat a cipher or authentication mechanism by trying to determine its decryption key or passphrase, sometimes trying thousands or millions of likely possibilities often obtained from lists of past security breaches. Technique A dictionary attack is based on trying all the strings in a pre-arranged listing. Such attacks originally used words found in a dictionary (hence the phrase ''dictionary attack''); however, now there are much larger lists available on the open Internet containing hundreds of millions of passwords recovered from past data breaches. There is also cracking software that can use such lists and produce common variations, such as substituting numbers for similar-looking letters. A dictionary attack tries only those possibilities which are deemed most likely to succeed. Dictionary attacks often succeed because many people have a tendency to choose sho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arno Wacker
The Arno is a river in the Tuscany region of Italy. It is the most important river of central Italy after the Tiber. Source and route The river originates on Monte Falterona in the Casentino area of the Apennines, and initially takes a southward curve. The river turns to the west near Arezzo passing through Florence, Empoli and Pisa, flowing into the Tyrrhenian Sea at Marina di Pisa. With a length of , it is the largest river in the region. It has many tributaries: Sieve at long, Bisenzio at , Ombrone Pistoiese at , and the Era, Elsa, Pesa, and Pescia. The drainage basin amounts to more than and drains the waters of the following subbasins: *The Casentino, in the province of Arezzo, formed by the upper course of the river until its confluence with the Maestro della Chiana channel. *The Val di Chiana, a plain drained in the 18th century, which until then had been a marshy area tributary of the Tiber. *The upper Valdarno, a long valley bordered on the east by t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nils Kopal
Nils is a Scandinavian given name, a chiefly Norwegian, Danish, Swedish and Latvian variant of Niels, cognate to Nicholas. People and animals with the given name * Nils Bergström (born 1985), Swedish ice hockey player *Nils Björk (1898–1989), Swedish Army lieutenant general *Nils Dacke (died 1543), Swedish rebel *Nils-Joel Englund (1907–1995), Swedish cross-country skier *Nils Ericson (1802–1870), Swedish inventor and engineer *Nils Frahm (born 1982), German pianist and producer *Nils Frykdahl, American musician * Nils Gründer (born 1997), German politician *Nils Hald (1897–1963), Norwegian actor * Nils Haßfurther (born 1999), German basketball player * Nils-Göran Holmqvist (born 1943), Swedish politician *Nils Kreicbergs (born 1996), Latvian handball player *Nils Liedholm (1922–2007), Swedish footballer and coach *Nils Lofgren (born 1951), American musician * Nils Lorens Sjöberg (1754-1822), Swedish officer and poet *Nils Mittmann (born 1979), German basketball p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Lasry
George may refer to: People * George (given name) * George (surname) * George (singer), American-Canadian singer George Nozuka, known by the mononym George * George Washington, First President of the United States * George W. Bush, 43rd President of the United States * George H. W. Bush, 41st President of the United States * George V, King of Great Britain, Ireland, the British Dominions and Emperor of India from 1910-1936 * George VI, King of Great Britain, Ireland, the British Dominions and Emperor of India from 1936-1952 * Prince George of Wales * George Papagheorghe also known as Jorge / GEØRGE * George, stage name of Giorgio Moroder * George Harrison, an English musician and singer-songwriter Places South Africa * George, Western Cape ** George Airport United States * George, Iowa * George, Missouri * George, Washington * George County, Mississippi * George Air Force Base, a former U.S. Air Force base located in California Characters * George (Peppa Pig), a 2-year-old ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transposition Cipher
In cryptography, a transposition cipher is a method of encryption which scrambles the positions of characters (''transposition'') without changing the characters themselves. Transposition ciphers reorder units of plaintext (typically characters or groups of characters) according to a regular system to produce a ciphertext which is a permutation of the plaintext. They differ from substitution ciphers, which do not change the position of units of plaintext but instead change the units themselves. Despite the difference between transposition and substitution operations, they are often combined, as in historical ciphers like the ADFGVX cipher or complex high-quality encryption methods like the modern Advanced Encryption Standard (AES). General principle Plaintexts can be rearranged into a ciphertext using a key, scrambling the order of characters like the shuffled pieces of a jigsaw puzzle. The resulting message is hard to decipher without the key because there are many ways the char ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific American
''Scientific American'', informally abbreviated ''SciAm'' or sometimes ''SA'', is an American popular science magazine. Many famous scientists, including Albert Einstein and Nikola Tesla, have contributed articles to it. In print since 1845, it is the oldest continuously published magazine in the United States. ''Scientific American'' is owned by Springer Nature, which in turn is a subsidiary of Holtzbrinck Publishing Group. History ''Scientific American'' was founded by inventor and publisher Rufus Porter (painter), Rufus Porter in 1845 as a four-page weekly newspaper. The first issue of the large format newspaper was released August 28, 1845. Throughout its early years, much emphasis was placed on reports of what was going on at the United States Patent and Trademark Office, U.S. Patent Office. It also reported on a broad range of inventions including perpetual motion machines, an 1860 device for buoying vessels by Abraham Lincoln, and the universal joint which now can be found ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Federal Republic Of Germany
Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated between the Baltic and North seas to the north, and the Alps to the south; it covers an area of , with a population of almost 84 million within its 16 constituent states. Germany borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, and France, Luxembourg, Belgium, and the Netherlands to the west. The nation's capital and most populous city is Berlin and its financial centre is Frankfurt; the largest urban area is the Ruhr. Various Germanic tribes have inhabited the northern parts of modern Germany since classical antiquity. A region named Germania was documented before AD 100. In 962, the Kingdom of Germany formed the bulk of the Holy Roman Empire. During the 16th century, north ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
