In the history of cryptography, Joseph Oswald Mauborgne (1881–1971) co-invented the one-time pad with Gilbert Vernam of Bell Labs. In 1914 he published the first recorded solution of the Playfair cipher. Joseph O. Mauborgne. ... The history of cryptography dates back thousands of years, and for the most part, it has been the history of classical cryptography; that is, methods of encryption which can be performed using pen and paper (or perhaps with simple mechanical aids). ... 1881 was a common year starting on Saturday (see link for calendar). ... 1971 is a common year starting on Friday (click for link to calendar). ... In cryptography, the one-time pad (OTP) is the only theoretically unbreakable method of encryption: the plaintext is combined with a random pad the same length as the plaintext. ... Gilbert Sandford Vernam (1890–7 February 1960) was a AT&T Bell Labs engineer who, in 1917, invented the stream cipher and later co-invented the one-time pad cipher. ... Bell Telephone Laboratories or Bell Labs was originally the research and development arm of the United States Bell System, and was the premier corporate facility of its type, developing a range of revolutionary technologies from telephone switches to specialized coverings for telephone cables, to the transistor. ... 1914 is a common year starting on Thursday. ... The Playfair system was invented by Charles Wheatstone, first described in 1854. ...

Mauborgne became a Major General in the United States Army, and in the period before Pearl Harbor was the Chief of the Signal Corps. As a Captain just after World War I, Insignia of a United States Air Force Major General German Generalmajor Insignia Major General is a military rank used in many countries. ... The Army is the branch of the United States armed forces which has primary responsibility for land-based military operations. ... The Signal Corps is a military branch, usually subordinate to a countrys army. ... Ypres, 1917, in the vicinity of the Battle of Passchendaele. ...

In the 1920s and 1930s, Mauborgne pursued communication advancements in numerous research-and-development assignments, including a stint as chief of the Signal Corps Engineering and Research Division and as commander of the Signal Corps laboratory in the Bureau of Standards. Sometimes referred to as the Roaring Twenties or the Jazz Age. ... Events and trends Technology Jet engine invented First atom was split with a particle accelerator Golden Age of radio begins in U.S. Disney adopts a three-color Technicolor process for cartoons First Kit Kat in UK The photocopier is invented by Carlson Air mail service across the Atlantic Science... As a non-regulatory agency of the United States Department of Commerce’s Technology Administration, the National Institute of Standards (NIST) develops and promotes measurement, standards, and technology to enhance productivity, facilitate trade, and improve the quality of life. ...

As Chief of Signal, Mauborgne supported technological development and oversaw the mass production of the SCR-268 and SCR-270 Army radars. Just a few months after he retired (September 30, 1941), two Signal Corps soldiers — using an SCR-270 radar at Oahu, Hawaii in the early morning of December 7, 1941 — spotted Japanese aircraft on their way in to attack Pearl Harbor. The U.S. Army SCR-270 radar, also known as The Pearl Harbor Radar was one of the first radars. ... This long range radar antenna (approximately 40m (130ft) in diameter) rotates on a track to observe activities near the horizon. ... Image of Oahu from space taken by NASA. O‘ahu is the third largest of the Hawaiian Islands and most populous island in the state of Hawai‘i. ... Satellite image of Pearl Harbor. ...

General Mauborgne is a member of the Military Intelligence Hall of Fame. The Military Intelligence Hall of Fame is a hall of fame established by the Military Intelligence Corps of the US Army to honor soldiers and civilians who have made exceptional contributions to Military Intelligence. ...