Secret and urgent : the story of codes and ciphers / by Fletcher Pratt.

• Prefatory Note -- Introductory -- Sermons in Stones -- The Element of Doubt -- Jargon -- Invention and Death -- Bacon or Shakespeare? -- Satellites of the Royal Sun -- Kings, Thieves and Diarists -- Failure -- The Revival -- Code -- The War of the Cryptographers -- The Cryptographers' War -- Notes -- Index. 

Ämnesord

Ciphers  (LCSH)

Cryptography  (LCSH)

Indexterm och SAB-rubrik

Afd Chiffer

Klassifikation

652.8 (DDC)

Afd (kssb/8)