Ranked #65 in Cryptography
"Gordon Welchman worked at Bletchley Park, on the most important British de-ciphering operations of the war [WW2], from 1939 to 1945. Here, unsuspected by the Germans, the famous Enigma codes were broken, almost continuously throughout the war. Welchman was a leading figure at Bletchley Park; his brilliant mathematical mind, and imaginative attack on apparently insuperable problems, were of inestimable value in shaping the course of the war and hastening victory.
No other book has explained so thoroughly how the job was done, and how so often a flash of genius, an inspired... more
No other book has explained so thoroughly how the job was done, and how so often a flash of genius, an inspired... more