Summary Report of the State of the Soviet Military Sigint in November 1942 Noticing "ENIGMA"
The problem of when the Russians started to read the German cipher machine ENIGMA still remains unsolved. A Russian document presented recently in a history of the GRU in the time of the Great patriotic War offers a new light on the problem. In November 1942 the Russians were able to begin reading ENIGMA on a daily basis and were thinking about automating the process. We do not know if incorporating the GRU cryptanalysts in the parallel section of the NKVD helped in the brilliant defeat of the Germans during the "Uran" and "Saturn" operations at Stalingrad, but we suppose so. The Russian solution of the ENIGMA ciphers could be linked with the traitors working at Station X (Bletchley Park) and in Military Intelligence.
gru nkvd bletchley park antony blunt beria "dolly," german ciphers ivan ivanovich il'ichev ivan markovich kozlov john cairncross leo long operation barbarossa russian ciphers stalin stavka