Cryptography, A Study on Secret Writings
by Andre Langie
Publisher: Aegean Park Press 1922
ISBN/ASIN: 1125391731
Number of pages: 238
Description:
This book is a classic in cryptographic literature. Text is divided into parts: Descriptions of the principal systems of cryptography; Examples of deciphering (cryptanalysis); Lists and tables with bibliography; plus an important section titled 'The Playfair Cipher'. This latter section is written by Lt. Commander W.W. Smith, U.S. Navy. Here the student is taken step-by-step through the solution of a Playfair Cipher problem.
Download or read it online for free here:
Download link
(multiple formats)
Similar books

by Al Sweigart - inventwithpython.com
This book describes several encryption programs for various ciphers, along with how to write programs that can break these ciphers. The book is for complete beginners, it will teach you how to encrypt and decrypt messages.
(11781 views)

by Jonathan Weir, WeiQi Yan - BookBoon
Visual cryptography provides a technique by which one secret can be distributed into two or more shares. When the shares are xeroxed onto transparencies and then superimposed, the original secret can be discovered without computer participation.
(9645 views)

by Svetlin Nakov - Nakov.com
This book will teach you the basics of applied cryptography in almost free of math style, following a step-by-step approach with lots of code examples and practical exercises (hands-on experience), just like when you learn Web development ...
(4920 views)

by Keijo Ruohonen - Tampere University of Technology
These notes contain the central mathematical background needed for understanding modern data encryption methods, and introduce applications in cryptography and various protocols. The fledgling quantum cryptography is briefly introduced.
(13110 views)