Breaking teleprinter ciphers at Bletchley Park : an edition of I.J. Good, D. Michie and G. Timms: General report on Tunny with emphasis on statistical methods (1945) / edited and with introductions and notes by James A. Reeds, Whitfield Diffie and J.V. Field.

This book is an edition of the General Report on Tunny with commentary that clarifies the often difficult language of the GRT and fitting it into a variety of contexts arising out of several separate but intersecting story lines, some only implicit in the GRT. Explores the likely roots of the ideas...

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