Description
Book SynopsisOne of the greatest accomplishments in the history of cryptography occurred in 1940 when Arne Beurling broke the German code used for strategic military communications. This work describes Beurling's attack on the G-Schreiber system as well as attacks on other wartime crypto systems, noting high points from the history of Swedish cryptology.
Table of ContentsPart 1: An 18th century cipher The world's first ciphering machine Damm, Hagelin, and Gylden Radio signal interception and cryptanalysis before 1939 War Enter Arne Beurling The Russian Baltic Navy Mysterious signals Teleprinters Beurling's Analysis The G-Schreiber and the apps Continued cryptanalysis Exit Gylden--but Beurling comes back The double transposition Operation Barbarossa The work place Contents The birth of the FRA Brilliant results--despite everything Downturn and leakage The Red Army and the Arctic Sea The doubly enciphered Russian code Stella Polaris Gradual loss of German traffic Borelius pays a visit to the Germans Information--but of what value? Norway The last years of the war The Swedes' own crypto systems Arne Beurling 1943-1945 Part 2: Arne Beurling Through the eyes of a woman A magical friendship Sources Index of names.
