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BRIGADIER JOHN TILTMAN: ONE OF BRITAIN'S FINEST CRYPTOLOGISTS |
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| Authors: | Ralph Erskine Peter Freeman |
| Affiliation: | 1. c/o Cryptologia, Department of Mathematics, United States Military Academy, West Point NY 10996 USA, rerskine@clara.co.uk;2. c/o Cryptologia, Department of Mathematics, United States Military Academy, West Point NY 10996 USA |
| Abstract: | Biography of Brigadier John Tiltman, who worked as a cryptologist for the British and American governments from 1920 to 1980. |
| Keywords: | Bletchley Park Denniston double Playfair GCCS GCHQ Japanese military attaché JN-25 Mask NSA Railway Enigma stencil subtracter Tiltman Travis Tunny. |