Born: May 18, 1909, Graz, Austria.

Died: September 2, 1988, Graz, Austria.

Higher Education: PhD Mathematics at University of Graz (Graz, Austria).

Main Publications: 

• Literature from and about Alexander Aigner in the catalog of the Deutsche Nationalbibliothek
• Alexander Aigner: Number theory. Berlin, New York: de Gruyter 1975
• Alexander Aigner: Tangents to the joy. Graz, 1978. Special number of the reports of the Mathematical-Statistical Section at the Research Center Graz.

Knows for:

• Number theory
• Being one of the original cryptanalysts at the OKW/Chi (Cipher Department of the High Command of the Wehrmacht).