Cryptography: The Science of Secret Writing

Smith, Laurence D.

ISBN 10: 048620247X / ISBN 13: 9780486202471

Verlag: Dover Publications, 1955

Fast Free Shipping â Good condition. It may show normal signs of use, such as light writing, highlighting, or library markings, but all pages are intact and the book is fully readable. A solid, complete copy that's ready to enjoy. Bestandsnummer des Verkäufers GWV.048620247X.G

Inhaltsangabe:

"Those who delight in puzzles can find much to ponder here." — Science News Letter
"Will be well received by anyone really interested in the subject." — Scientific Book Club Review
Readers interested in secret writing will find this book an excellent elementary explanation of transposition and substitution ciphers, codes, and their solutions. More than 150 problems provide practical application as well as tests of skill and ingenuity.
After a brief description of the history of secret writing, the reader is introduced to fundamental principles of ciphers — transposition and substitution — and given an understanding of the various methods of enciphering and deciphering secret messages. The author covers geometrical patterns, route transcription, columnar transposition, and other methods used in transposition; under substitution, he treats mixed cipher systems, single-alphabet and polyalphabetical substitution, mechanical devices, the Vigenère system, etc. A discussion of cryptanalysis leads the reader into 151 problems for which answers are provided at the end. Appendixes offer notes on enciphering Japanese; and explanation of the Baconian Biliteral Cipher; frequency tables for English, French, German, Italian, and Spanish.

Bibliografische Details

Titel: Cryptography: The Science of Secret Writing
Verlag: Dover Publications
Erscheinungsdatum: 1955
Einband: Softcover
Zustand: good