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Анон. Secret and Urgent - The Story of Codes and Ciphers
Secret and Urgent
CONTENTS
PREFATORY NOTE
INTRODUCTORY. I
II
CHAPTER I. SERMONS IN STONES. I
II
CHAPTER II. THE ELEMENT OF DOUBT. I
II
CHAPTER III. JARGON. I
II
III
IV
V
VI
VII
VIII
IX
CHAPTER IV. INVENTION AND DEATH. I
II
III
IV
V
CHAPTER V. BACON OR SHAKESPEARE? I
II
III
IV
V
VI
VII
CHAPTER VI. SATELLITES OF THE ROYAL SUN. I
THE VIGENÈRE TABLEAU
II
III
IV
V
VI
VII
CHAPTER VII. KINGS, THIEVES AND DIARISTS. I
II
III
IV
V
CHAPTER VIII. FAILURE. I
II
III
CHAPTER IX. THE REVIVAL. I
II
III
IV
V
CHAPTER X. CODE. I
II
III
IV
CHAPTER XI. THE WAR OF THE CRYPTOGRAPHERS. I
II
III
IV
V
VI
CHAPTER XII. THE CRYPTOGRAPHERS’ WAR. I
II
III
IV
V
VI
VII
VIII
IX
NOTES
INDEX
Отрывок из книги
THE STORY OF CODES AND CIPHERS
by
.....
“What shall we call the air?” says one passage. “The air may be called the ravens’ causeway; or the bearer of storms; or the woof of the winds.”
If figures of speech are constantly used, if they be sufficiently farfetched and involved, or if they have reference to something known only to a few persons, this sort of thing can be developed into a code which can be either written or spoken. It is difficult to state positive facts when dealing with so indefinite a subject, but it would seem that the inspiration for the use of this type of code for diplomatic purposes comes ultimately from the very root of the language growing through medieval thieves’ slang, which was already highly developed in the fourteenth century.
