Herbert von Denffer

Herbert Julius von Denffer (born 4 June 1907, date of death unknown) was a German actuarial mathematician. He was born in Narva, Estonia. During World War II, Denffer worked as a cryptanalyst in Referat F, the Mathematical Referat, as part of the Inspectorate 7/VI, that was the signals intelligence agency of the Wehrmacht, before and during World War II. He would later work for the General der Nachrichtenaufklärung, the successor organization to the In 7/VI, specifically undertaking research in general theory of cryptography.

Life Denffer was the son of author and banker Alexander von Denffer from the aristocratic Denffer family. On 26 February 1926, he received his Abitur certificate from the Marienstiftsgymnasium Gymnasium. Denffer undertook 3 semesters of study at the University of Tübingen and 6 semesters at the Humboldt University of Berlin.