Catalog - The City Library

Displaying 1 of 1

Cryptography : the science of secret writing

1955

Format:	Book
Author:	Smith, Laurence Dwight, author.
Title:	Cryptography : the science of secret writing / by Laurence Dwight Smith. 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. -- amazon.com
Edition:	New Dover edition.
Publisher, Date:	New York : Dover Publications, 1955.
Description:	164 pages : illustrations ; 21 cm illustration bibliography bibliography index index
Summary:	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.
Subjects:	Cryptography. Ciphers. Cryptography -- Problems, exercises, etc.
Genre:	Problems and exercises.
Notes:	"An unabridged republication of the first edition with corrections"--Title page verso Includes bibliographical references (page 156) and index.
LCCN:	55004373
ISBN:	048620247X 9780486202471
Other Number:	1575264
System Availability:	1
Current Holds:	0
# Local items:	1
Control Number:	92563
# Local items in:	1
# System items in:	1
Call Number:	652.8 Smith

Expand All | Collapse All

Availability

Map It

Displaying 1 of 1