secrecy of correspondence

  • 81Kerckhoffs' principle — In cryptography, Kerckhoffs principle (also called Kerckhoffs assumption, axiom or law) was stated by Auguste Kerckhoffs in the 19th century: a cryptosystem should be secure even if everything about the system, except the key, is public knowledge …

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  • 82John Byng — (October 29, 1704 ndash; March 14, 1757) was a British admiral who was court martialled and executed for failing to do his utmost during the Battle of Minorca, at the beginning of the Seven Years War. Early life and career John Byng was born in… …

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  • 83Nuclear program of Iran — See also: Iran and weapons of mass destruction Nuclear program of Iran …

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  • 84Harry S. Truman — This article is about the United States president. For other uses of the name, see Harry Truman (disambiguation). Harry Truman 33rd President of the United States …

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  • 85Operation Iraqi Freedom documents — are some 48,000 boxes of documents, audiotapes and videotapes that were discovered by the U.S. military during the 2003 invasion of Iraq. The documents date from the 1980s through the post Saddam period. The U.S. government, at the urging of… …

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  • 86Patent application — A patent application is a request pending at a patent office for the grant of a patent for the invention described and claimed by that application. An application consists of a description of the invention (the patent specification ), together… …

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  • 87Alberta Eugenics Board — In 1928, the Province of Alberta, Canada, passed legislation that enabled the government to perform involuntary sterilizations on individuals classified as mentally deficient. In order to implement the Sexual Sterilization Act of Alberta in 1928 …

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  • 88Philippine Postal Corporation — Infobox Company company name = Philippine Postal Corporation company company type = State owned (government monopoly) company slogan = Across the country. Across the world. key people = Franco L. Loyola, Chairman Hector RR. Villanueva, Postmaster …

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  • 89Pierre Jean Louis Ovide Doublet — Infobox Politician name =Pierre Jean Louis Ovide Doublet caption =Pierre Jean Louis Ovide Doublet full name =Pierre Jean Louis Ovide Doublet spouse =Elizabetta Magri children =Maria Doublet Regina Doublet Vincenzo Doublet allegedly 4 others… …

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  • 90History of ancient Tunisia — The present day Republic of Tunisia, al Jumhuriyyah at Tunisiyyah , has over ten million citizens, almost all of Arab Berber descent. The Mediterranean Sea is to the north and east, Libya to the southeast, and Algeria to the west. Tunis is the… …

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