Hans Rohrbach
Hans Rohrbach was a German mathematician. He worked both as an algebraist and a number theorist and later worked as cryptanalyst at Pers Z S, the German Foreign Office cipher bureau, during World War II. He was latterly known as the person who broke the American diplomatic O-2 cypher, a variant of the M-138-A strip cipher during 1943. Rohrbach wrote a report on the breaking of the strip cypher when he was captured by TICOM, the allied effort to roundup and seize captured German intelligence people and material.
From *.wikipedia.org,
General Info
.
Male
Date of Birth
February 27th, 1903
Age
123
Birth Place
Germany
Date of Death
December 19th, 1993
Died Aged
90
Star Sign
Pisces
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