Author : Fletcher Pratt
Publisher : Unknown
Page : 292 pages
File Size : 45,9 Mb
Release : 1942
Category : Ciphers
ISBN : STANFORD:36105002110091
Secret and Urgent
Fletcher Pratt
Secret And Urgent The Story Of Codes And Ciphers
Secret And Urgent The Story Of Codes And Ciphers Book in PDF, ePub and Kindle version is available to download in english. Read online anytime anywhere directly from your device. Click on the download button below to get a free pdf file of Secret And Urgent The Story Of Codes And Ciphers book. This book definitely worth reading, it is an incredibly well-written.
Secret and Urgent - The Story of Codes and Ciphers
Anon
Author : Anon
Publisher : Read Books Ltd
Page : 277 pages
File Size : 54,7 Mb
Release : 2020-08-06
Category : History
ISBN : 9781528764810
Secret and Urgent - The Story of Codes and Ciphers by Anon Pdf
Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.
United States Diplomatic Codes and Ciphers, 1775-1938
Ralph E. Weber
Author : Ralph E. Weber
Publisher : Routledge
Page : 890 pages
File Size : 48,9 Mb
Release : 2017-09-08
Category : Business & Economics
ISBN : 9781351316187
United States Diplomatic Codes and Ciphers, 1775-1938 by Ralph E. Weber Pdf
United States Diplomatic Codes and Ciphers, 1775-1938 is the first basic reference work on American diplomatic cryptography. Weber's research in national and private archives in the Americas and Europe has uncovered more than one hundred codes and ciphers. Beginning with the American Revolution, these secret systems masked confidential diplomatic correspondence and reports.During the period between 1775 and 1938, both codes and ciphers were employed. Ciphers were frequently used for American diplomatic and military correspondence during the American Revolution. At that time, a system was popular among American statesmen whereby a common book, such as a specific dictionary,was used by two correspondents who encoded each word in a message with three numbers. In this system, the first number indicated the page of the book, the second the line in the book, and the third the position of the plain text word on that line counting from the left. Codes provided the most common secret language basis for the entire nineteenth century.Ralph Weber describes in eight chapters the development of American cryptographic practice. The codes and ciphers published in the text and appendix will enable historians and others to read secret State Department dispatches before 1876, and explain code designs after that year.
Codes and Secret Writing
Herbert Spencer Zim
Author : Herbert Spencer Zim
Publisher : Unknown
Page : 174 pages
File Size : 50,7 Mb
Release : 1948
Category : Ciphers
ISBN : WISC:89098116437
Codes and Secret Writing by Herbert Spencer Zim Pdf
Explains how to make and break several kinds of codes, how to use secret languages and how to make invisible inks.
The Story of Codes
Stephen Pincock,Mark Frary
Author : Stephen Pincock,Mark Frary
Publisher : THAMES & HUDSON
Page : 192 pages
File Size : 42,8 Mb
Release : 2019-10
Category : Ciphers
ISBN : 1911130897
The Story of Codes by Stephen Pincock,Mark Frary Pdf
The Top Secret History of Codes and Code Breaking
Roy Apps
Author : Roy Apps
Publisher : Unknown
Page : 32 pages
File Size : 46,9 Mb
Release : 2016
Category : Ciphers
ISBN : OCLC:1311131836
The Top Secret History of Codes and Code Breaking by Roy Apps Pdf
Secret Code Book: Substitution Ciphers
John Redden
Author : John Redden
Publisher : Lulu.com
Page : 58 pages
File Size : 50,5 Mb
Release : 2018-03-12
Category : Education
ISBN : 9781387346080
Secret Code Book: Substitution Ciphers by John Redden Pdf
The Secret Code Book is a short introduction to substitution ciphers. The chapters ease young readers into the concept of rotation ciphers and work their way up to the Vigen re cipher. Along the way, readers will also learn about geometric approaches to secret codes such as the Pigpen cipher. As a bonus, there is a brief description of frequency analysis and how it is used to crack secret codes. frper gpbqr obbx In addition, this book actively challenges readers with practice missions where answers are listed in the back. Also, there is a cut-out rotation template that is provided to make your very own cipher disk! After reading this book, you will have all the basic tools needed to create secret messages.
Codes and Ciphers
John Laffin
Author : John Laffin
Publisher : Unknown
Page : 152 pages
File Size : 48,9 Mb
Release : 1964
Category : Ciphers
ISBN : LCCN:64018723
Codes and Ciphers by John Laffin Pdf
Codebreaker
Stephen Pincock,Mark Frary
Author : Stephen Pincock,Mark Frary
Publisher : Century
Page : 176 pages
File Size : 49,5 Mb
Release : 2007
Category : Ciphers
ISBN : 1905211546
Codebreaker by Stephen Pincock,Mark Frary Pdf
This edition surveys the entire history of codes through an eloquent narrative and an evocative range of illustrations, paying special attention to famous codes that have never been broken, such as the Beale Ciphers, the Voynich manuscript, the Easter Island code, and many more.
Codes, Ciphers and Secret Language
Fred B. Wrixon
Author : Fred B. Wrixon
Publisher : Unknown
Page : 280 pages
File Size : 48,6 Mb
Release : 1989
Category : Ciphers
ISBN : 0245548807
Codes, Ciphers and Secret Language by Fred B. Wrixon Pdf
Codes, Ciphers and Secret Writing
Martin Gardner
Author : Martin Gardner
Publisher : Courier Corporation
Page : 100 pages
File Size : 42,5 Mb
Release : 1984-01-01
Category : Juvenile Nonfiction
ISBN : 0486247619
Codes, Ciphers and Secret Writing by Martin Gardner Pdf
Explains various methods used in cryptography and presents examples to help readers in breaking secret codes
Secret Codes & Ciphers
Anonim
Author : Anonim
Publisher : Unknown
Page : 100 pages
File Size : 51,9 Mb
Release : 1982
Category : Ciphers
ISBN : STANFORD:36105082757811
Secret Codes & Ciphers by Anonim Pdf
A Material History of Medieval and Early Modern Ciphers
Katherine Ellison,Susan Kim
Author : Katherine Ellison,Susan Kim
Publisher : Routledge
Page : 286 pages
File Size : 54,7 Mb
Release : 2017-09-14
Category : Literary Criticism
ISBN : 9781351973083
A Material History of Medieval and Early Modern Ciphers by Katherine Ellison,Susan Kim Pdf
The first cultural history of early modern cryptography, this collection brings together scholars in history, literature, music, the arts, mathematics, and computer science who study ciphering and deciphering from new materialist, media studies, cognitive studies, disability studies, and other theoretical perspectives. Essays analyze the material forms of ciphering as windows into the cultures of orality, manuscript, print, and publishing, revealing that early modern ciphering, and the complex history that preceded it in the medieval period, not only influenced political and military history but also played a central role in the emergence of the capitalist media state in the West, in religious reformation, and in the scientific revolution. Ciphered communication, whether in etched stone and bone, in musical notae, runic symbols, polyalphabetic substitution, algebraic equations, graphic typographies, or literary metaphors, took place in contested social spaces and offered a means of expression during times of political, economic, and personal upheaval. Ciphering shaped the early history of linguistics as a discipline, and it bridged theological and scientific rhetoric before and during the Reformation. Ciphering was an occult art, a mathematic language, and an aesthetic that influenced music, sculpture, painting, drama, poetry, and the early novel. This collection addresses gaps in cryptographic history, but more significantly, through cultural analyses of the rhetorical situations of ciphering and actual solved and unsolved medieval and early modern ciphers, it traces the influences of cryptographic writing and reading on literacy broadly defined as well as the cultures that generate, resist, and require that literacy. This volume offers a significant contribution to the history of the book, highlighting the broader cultural significance of textual materialities.
Secret Key Cryptography
Frank Rubin
Author : Frank Rubin
Publisher : Simon and Schuster
Page : 552 pages
File Size : 49,8 Mb
Release : 2022-08-30
Category : Computers
ISBN : 9781638351245
Secret Key Cryptography by Frank Rubin Pdf
Explore the fascinating and rich world of Secret Key cryptography! This book provides practical methods for encrypting messages, an interesting and entertaining historical perspective, and an incredible collection of ciphers and codes—including 30 unbreakable methods. In Secret Key Cryptography: Ciphers, from simple to unbreakable you will: Measure the strength of your ciphers and learn how to guarantee their security Construct and incorporate data-compression codes Generate true random numbers in bulk Construct huge primes and safe primes Add an undetectable backdoor to a cipher Defeat hypothetical ultracomputers that could be developed decades from now Construct 30 unbreakable ciphers Secret Key Cryptography gives you a toolbox of cryptographic techniques and Secret Key methods. The book’s simple, non-technical language is easy to understand and accessible for any reader, even without the advanced mathematics normally required for cryptography. You’ll learn how to create and solve ciphers, as well as how to measure their strength. As you go, you’ll explore both historic ciphers and groundbreaking new approaches—including a never-before-seen way to implement the uncrackable One-Time Pad algorithm. Whoever you are, this book is for you! History buffs will love seeing the evolution of sophisticated cryptographic methods, hobbyists will get a gentle introduction to cryptography, and engineers and computer scientists will learn the principles of constructing secure ciphers. Even professional cryptographers will find a range of new methods and concepts never published before. About the technology From the Roman empire’s Caesar cipher to the WWII Enigma machine, secret messages have influenced the course of history. Today, Secret Key cryptography is the backbone of all modern computing infrastructure. Properly designed, these algorithms are efficient and practical. Some are actually unbreakable, even using supercomputers or quantum technology! About the book Secret Key Cryptography teaches you how to create Secret Key ciphers, ranging from simple pen-and-paper methods to advanced techniques used in modern computer-based cryptography. It reveals both historic examples and current innovations. You’ll learn how to efficiently encrypt large files with fast stream ciphers, discover alternatives to AES encryption, and avoid strong-looking but weak ciphers. Simple language and fun-to-solve mini-ciphers make learning serious concepts easy and engaging. What's inside Construct 30 unbreakable ciphers Measure the strength of your ciphers and guarantee their security Add an undetectable backdoor to a cipher Defeat hypothetical ultracomputers of the future About the reader For professional engineers, computer scientists, and cryptography hobbyists. No advanced math knowledge is required. About the author Frank Rubin has been doing cryptography for over 50 years. He holds an MS in Mathematics, and a PhD in Computer Science. Table of Contents 1 Introduction 2 What is cryptography? 3 Preliminary concepts 4 Cryptographer’s toolbox 5 Substitution ciphers 6 Countermeasures 7 Transposition 8 Jefferson Wheel Cypher 9 Fractionation 10 Variable-length fractionation 11 Block ciphers 12 Principles for secure encryption 13 Stream ciphers 14 One-time pad 15 Matrix methods 16 Three pass protocol 17 Codes 18 Quantum computers
Codes and Ciphers
Alexander D'Agapeyeff
Author : Alexander D'Agapeyeff
Publisher : Unknown
Page : 172 pages
File Size : 47,5 Mb
Release : 1939
Category : Ciphers
ISBN : UOM:39015007032140