"In Codebreakers' Victory, veteran World War II cryptographer Hervie Haufler details how American and British codebreakers were the decisive factor in the Allied victory. He brings us an insider's view of this "secret war"--The Purple Machine to the breaking of Japan's JN-25 naval code - in an accessible account based on years of research, exclusive access to previously top secret files and archives, and interviews with specialists, survivors, and cryptanalysts from nearly every country that fought in the war."--Jacket.