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JADE (cypher Machine)
JADE was the codename given by US codebreakers to a Japanese World War II cipher machine. The Imperial Japanese Navy used the machine for communications from late 1942 until 1944. JADE was similar to another cipher machine, CORAL, with the main difference that JADE was used to encipher messages in katakana using an alphabet of 50 symbols.https://www.nsa.gov/about/cryptologic-heritage/center-cryptologic-history/pearl-harbor-review/early-japanese/ Early Japanese Systems NSA Center for Cryptologic History According to the NSA, "apparently, the JADE machine did not stand up to heavy usage in the field, and, after an initial high volume of traffic, it was used much less." While CORAL traffic was also low, an important user was a Japanese representative, Vice Admiral Abe, to an Axis war-planning council whose reports coded in CORAL were intercepted and proved vital to Allied planning in the European theater. See also * Purple * RED Red is the color at the long wavelength end of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperial Japanse Navy Jade Code Machine 1
Imperial is that which relates to an empire, emperor, or imperialism. Imperial or The Imperial may also refer to: Places United States * Imperial, California * Imperial, Missouri * Imperial, Nebraska * Imperial, Pennsylvania * Imperial, Texas * Imperial, West Virginia * Imperial, Virginia * Imperial County, California * Imperial Valley, California * Imperial Beach, California Elsewhere * Imperial (Madrid), an administrative neighborhood in Spain * Imperial, Saskatchewan, a town in Canada Buildings * Imperial Apartments, a building in Brooklyn, New York * Imperial City, Huế, a palace in Huế, Vietnam * Imperial Palace (other) * Imperial Towers, a group of lighthouses on Lake Huron, Canada * The Imperial (Mumbai), a skyscraper apartment complex in India Animals and plants * ''Cheritra'' or imperial, a genus of butterfly Architecture, design, and fashion * Imperial, a luggage case for the top of a coach * Imperial, the top, roof or second-storey compartment of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Codename
A code name, call sign or cryptonym is a Code word (figure of speech), code word or name used, sometimes clandestinely, to refer to another name, word, project, or person. Code names are often used for military purposes, or in espionage. They may also be used in industrial espionage, industrial counter-espionage to protect secret projects and the like from business rivals, or to give names to projects whose marketing name has not yet been determined. Another reason for the use of names and phrases in the military is that they transmit with a lower level of cumulative errors over a walkie-talkie or radio link than actual names. Military origins During First World War, World War I, names common to the Allies of World War I, Allies referring to nations, cities, geographical features, military units, military operations, diplomatic meetings, places, and individual persons were agreed upon, adapting pre-war naming procedures in use by the governments concerned. In the British case n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperial Japanese Navy
The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was the navy of the Empire of Japan from 1868 to 1945, when it was dissolved following Japan's surrender in World War II. The Japan Maritime Self-Defense Force (JMSDF) was formed between 1952–1954 after the dissolution of the IJN. The Imperial Japanese Navy was the third largest navy in the world by 1920, behind the Royal Navy and the United States Navy (USN). It was supported by the Imperial Japanese Navy Air Service for aircraft and airstrike operation from the fleet. It was the primary opponent of the Western Allies in the Pacific War. The origins of the Imperial Japanese Navy go back to early interactions with nations on the Asian continent, beginning in the early medieval period and reaching a peak of activity during the 16th and 17th centuries at a time of cultural exchange with European powers during the Age of Discovery. After t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Katakana
is a Japanese syllabary, one component of the Japanese writing system along with hiragana, kanji and in some cases the Latin script (known as rōmaji). The word ''katakana'' means "fragmentary kana", as the katakana characters are derived from components or fragments of more complex kanji. Katakana and hiragana are both kana systems. With one or two minor exceptions, each syllable (strictly mora) in the Japanese language is represented by one character or ''kana'' in each system. Each kana represents either a vowel such as "''a''" (katakana ア); a consonant followed by a vowel such as "''ka''" (katakana カ); or "''n''" (katakana ン), a nasal sonorant which, depending on the context, sounds either like English ''m'', ''n'' or ''ng'' () or like the nasal vowels of Portuguese or Galician. In contrast to the hiragana syllabary, which is used for Japanese words not covered by kanji and for grammatical inflections, the katakana syllabary usage is comparable to italics in En ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Purple (cipher Machine)
In the history of cryptography, the "System 97 Typewriter for European Characters" (九七式欧文印字機) 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 six ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RED (cipher Machine)
In the history of cryptography, or , codenamed Red by the United States, was a diplomatic cryptographic machine used by the Japanese Foreign Office before and during World War II. A relatively simple device, it was quickly broken by western cryptographers. The Red cipher was succeeded by the which used some of the same principles. Parallel usage of the two systems assisted in the breaking of the Purple system. The Red cipher should not be confused with the Red naval code, which was used by the Imperial Japanese Navy between the wars. The latter was a codebook system, not a cipher. Operation The Red machine encrypted and decrypted texts written in Latin characters (alphabetic only) for transmission through the cable services. These services charged a lower rate for texts that could be pronounced than for random strings of characters; therefore the machine produced telegraph code by enciphering the vowels separately from the consonants, so that the text remained a series of syll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Encryption Devices
In cryptography, encryption is the process of encoding information. This process converts the original representation of the information, known as plaintext, into an alternative form known as ciphertext. Ideally, only authorized parties can decipher a ciphertext back to plaintext and access the original information. Encryption does not itself prevent interference but denies the intelligible content to a would-be interceptor. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. It is possible to decrypt the message without possessing the key but, for a well-designed encryption scheme, considerable computational resources and skills are required. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients but not to unauthorized users. Historically, various forms of encryption have been used to aid in cryptography. Early encryption techniques were often used in military ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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