The Codebreakers: The Comprehensive History of Secret Communication from Ancient Times to the Internet

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Beware of the paperback 1973 edition. It is an abridged version of the 1967 Hardcover edition.
It is still of interest to me, but I thought I was buying the book I had read in 1967. A Note on the Abridged Version......Page 2 Preface......Page 3 A Few Words......Page 4 1. One Day of Magic: I......Page 6 2. One Day of Magic: II......Page 31 3. The First 3,000 Years......Page 64 4. The Rise of the West......Page 79 5. On The Origin of a Species......Page 86 6. The Era of the Black Chambers......Page 98 7. The Contribution of the Dilettantes......Page 108 8. Room 40......Page 127 9. A War of Intercepts......Page 150 10. Two Americans......Page 164 Secrecy for Sale......Page 190 12. Duel in the Ether: I......Page 210 13 Duel in the Ether: II......Page 241 14. Censors, Scramblers, and Spies......Page 270 15. The Scrutable Orientals......Page 294 16 Russkaya Kriptologiya......Page 337 17. N. S. A.......Page 375 18. Heterogeneous Impulses......Page 399 19. Ciphers in the Past Tense......Page 419 20. The Anatomy of Cryptology......Page 435 Suggestions for Further Reading......Page 454 Index......Page 457