Cryptography: The Science of Secret Writing

by Laurence Dwight Smith

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Description

Elementary account of ciphers, history, types, etc., with 151 examples of ciphers and codes. Solutions. Good introduction for beginners.

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Indeholder "Preface", "I. Secret Weapon No. One", "II. The History of Secret Writing", "III. Transposition Ciphers", "IV. Substitution Cipher", "V. Codes compared with Ciphers", "VI. Cryptanalysis: Transpositional Ciphers, Informal Substitution Ciphers, Formal Substitution Ciphers", "VII. Problems", "VIII. Solutions", "Appendix A. Some Notes on the Enciphering of Japanese", "Appendix B. The Baconian Biliteral Cipher", "Appendix C. Frequency Tables", "Appendix D. Bibliography", "Appendix E. Definitions", "Index".

Kryptografi på fodgængerniveau.

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11 Works 191 Members

Common Knowledge

Original publication date
1943
First words
At the outbreak of the Second World War, possibly no shortage was more acute -or less publishized- than that of qualified cryptographers.
Quotations
In the combat zone, nerves are taut. Who at moments of great tension could cope with the complications mentioned above, either in enciphering or deciphering? (pp. 75)
Last words
(Click to show. Warning: May contain spoilers.)VARIANTS, two or more letters or characters that represent plain-text letters.

Classifications

Genres
Nonfiction, Technology, General Nonfiction, Science & Nature
DDC/MDS
793Arts & recreationRecreation, sports, and performing artsIndoor games and amusements
LCC
Z104 .S5Bibliography, Library Science and Information ResourcesBooks (General). Writing. PaleographyWritingCryptography. Ciphers. Invisible writing
BISAC

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175
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187,222
Reviews
1
Rating
½ (3.40)
Languages
English
Media
Paper
ISBNs
2
UPCs
1
ASINs
6