Lambros D. Callimahos

Lambros Demetrios Callimahos ( born December 16, 1910 in Alexandria, † 28 October 1977) was a cryptographer of the U.S. Army.

Youth and Education

He was born in Alexandria, the son of Greek parents, the family emigrated to the United States when he was four years old. His father was a journalist. His research interests were in school chemistry, physics and medicine. He showed up to the age of 14 years no interest in music. This changed when he attended high school in Asbury Park.

He graduated in law at Rutgers University in accordance with the wishes of his father, but later attended at the age of 19 years, the Juilliard School and obtained in 1933 a degree there. Although he started at the lower end of the class, he was in his second year on the advice of his teacher Arthur Lora class leader. After graduating, he continued his studies in Europe.

Musical career

He made his musical debut in 1935 in Munich, where he was announced as a master flutist. He played beyond in Vienna and in the autumn of the same year a work by Bach in Munich, which consisted of seven sonatas and his own arrangement for Flute and Harpsichord Suite in B minor. Subsequently he toured for two years with concert lectures throughout Europe and was appointed at the Mozarteum professor.

In April 1937 he made ​​his debut in the U.S. at the Town Hall in New York City. He toured both Europe and the United States during this time.

World War II

In 1941, he joined the U.S. Army in the hope that his interest might be to cryptography of use.

He taught Italian and cryptanalysis in Fort Monmouth. He signed up for a Japanese course and served as a Signals Intelligence Officer for the area of ​​India - Southeast Asia in New Delhi.

Later career

After the end of World War II, he was assigned to the Army Security Agency, as an assistant to William Friedman. When the National Security Agency was established, both men were at this. In the 1950s, he developed the course CA -400 (which he taught until 1976 ), an extension of Friedman's own labor- intensive course. Graduates of the course have been designated NSA internally as members of the so-called Callimahos Dundee Society and could belong to the elite of the cryptanalyst at the NSA. In these courses, he also developed an exercise in cryptography and radio traffic analysis, which is known as Zendian problem at NSA. He revised beyond the classic work of Friedman Military Cryptanalysis to write your own text cryptanalytics Military ( published 1957-1977 ).