[CRYPTOGRAPHY] BELL, Ernest LBiblio.com
1 resultado
1977ref. 86176Keene NH: TSU Press 1977. No statement of printing or edition. Inscribed illegibly on title page signed by the author undated. Quarto 28cm. Side-stapled sheets; printed from typescript; 110pp. Fine. An attempt to reconstruct the history and chronology of the tactical use of "Ultra" - the top-secret decryption technique pionered at Bletchley Park in England - by American forces in WW2. At the time this work was assembled all government documents on Ultra remained classified; Bell through a mult-year effort was able to obtain three pertinent reports Freedom of Information Act; they are reproduced with redactions here: George C. Marshall's Order of March 15 1944; "Synthesis of Experiences in the Use of Ultra Intelligence by U.S. Army Field Commands" 1944; and "Use of CX/MSS Ultra by the United States War Department" 1945. Self-published and uncommon. TSU Press unknown