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 entering into the Tunny cryptanalysis • Includes examples of original worksheets, and printouts of the Tunny-breaking process in action • Presents additional commentary, biographies, glossaries, essays, and bibliographies
