Codes and Ciphers - A History Of Cryptography

Author: Alexander D'Agapeyeff
Publisher: Read Books Ltd
ISBN: 1473350913
Category: Computers
Page: 150
View: 1358
This vintage book contains Alexander D?Agapeyeff?s famous 1939 work, ?Codes and Ciphers - A History of Cryptography?. Cryptography is the employment of codes and ciphers to protect secrets, and it has a long and interesting history. This fantastic volume offers a detailed history of cryptography from ancient times to modernity, written by the Russian-born English cryptographer, Alexander D'Agapeyeff. Contents include: ?The beginnings of Cryptography?, ?From the Middle Ages Onwards?, ?Signals, Signs, and Secret Languages?, ?Commercial Codes?, ?Military Codes and Ciphers?, ?Types of Codes and Ciphers?, ?Methods of Deciphering?, etcetera. Many antiquarian texts such as this, especially those dating back to the 1900s and before, are increasingly hard to come by and expensive, and it is with this in mind that we are republishing this book now in an affordable, modern, high quality edition. It comes complete with a specially commissioned new biography of the author.

History of Cryptography and Cryptanalysis

Codes, Ciphers, and Their Algorithms
Author: John F. Dooley
Publisher: Springer
ISBN: 3319904434
Category: Computers
Page: 303
View: 7519
This accessible textbook presents a fascinating review of cryptography and cryptanalysis across history. The text relates the earliest use of the monoalphabetic cipher in the ancient world, the development of the “unbreakable” Vigenère cipher, and an account of how cryptology entered the arsenal of military intelligence during the American Revolutionary War. Moving on to the American Civil War, the book explains how the Union solved the Vigenère ciphers used by the Confederates, before investigating the development of cipher machines throughout World War I and II. This is then followed by an exploration of cryptology in the computer age, from public-key cryptography and web security, to criminal cyber-attacks and cyber-warfare. Looking to the future, the role of cryptography in the Internet of Things is also discussed, along with the potential impact of quantum computing. Topics and features: presents a history of cryptology from ancient Rome to the present day, with a focus on cryptology in the 20th and 21st centuries; reviews the different types of cryptographic algorithms used to create secret messages, and the various methods for breaking such secret messages; provides engaging examples throughout the book illustrating the use of cryptographic algorithms in different historical periods; describes the notable contributions to cryptology of Herbert Yardley, William and Elizebeth Smith Friedman, Lester Hill, Agnes Meyer Driscoll, and Claude Shannon; concludes with a review of tantalizing unsolved mysteries in cryptology, such as the Voynich Manuscript, the Beale Ciphers, and the Kryptos sculpture. This engaging work is ideal as both a primary text for courses on the history of cryptology, and as a supplementary text for advanced undergraduate courses on computer security. No prior background in mathematics is assumed, beyond what would be encountered in an introductory course on discrete mathematics.

A Brief History of Cryptology and Cryptographic Algorithms

Author: John F. Dooley
Publisher: Springer Science & Business Media
ISBN: 3319016288
Category: Computers
Page: 99
View: 2450
The science of cryptology is made up of two halves. Cryptography is the study of how to create secure systems for communications. Cryptanalysis is the study of how to break those systems. The conflict between these two halves of cryptology is the story of secret writing. For over 2,000 years, the desire to communicate securely and secretly has resulted in the creation of numerous and increasingly complicated systems to protect one's messages. Yet for every system there is a cryptanalyst creating a new technique to break that system. With the advent of computers the cryptographer seems to finally have the upper hand. New mathematically based cryptographic algorithms that use computers for encryption and decryption are so secure that brute-force techniques seem to be the only way to break them – so far. This work traces the history of the conflict between cryptographer and cryptanalyst, explores in some depth the algorithms created to protect messages, and suggests where the field is going in the future.

Can You Crack the Code?

A Fascinating History of Ciphers and Cryptography
Author: Ella Schwartz
Publisher: Bloomsbury Publishing USA
ISBN: 1681199890
Category: Juvenile Nonfiction
Page: 176
View: 8617
Codes can carry big secrets! Throughout history, lots of good guys and lots of bad guys have used codes to keep their messages under wraps. This fun and flippable nonfiction features stories of hidden treasures, war-time maneuverings, and contemporary hacking as well as explaining the mechanics behind the codes in accessible and kid friendly forms. Sidebars call out activities that invite the reader to try their own hand at cracking and crafting their own secret messages. This is the launch of an exciting new series that invites readers into a STEM topic through compelling historical anecdotes, scientific backup, and DIY projects.

The Codebreakers

The Comprehensive History of Secret Communication from Ancient Times to the Internet
Author: David Kahn
Publisher: Simon and Schuster
ISBN: 1439103550
Category: History
Page: 1200
View: 5283
The magnificent, unrivaled history of codes and ciphers -- how they're made, how they're broken, and the many and fascinating roles they've played since the dawn of civilization in war, business, diplomacy, and espionage -- updated with a new chapter on computer cryptography and the Ultra secret. Man has created codes to keep secrets and has broken codes to learn those secrets since the time of the Pharaohs. For 4,000 years, fierce battles have been waged between codemakers and codebreakers, and the story of these battles is civilization's secret history, the hidden account of how wars were won and lost, diplomatic intrigues foiled, business secrets stolen, governments ruined, computers hacked. From the XYZ Affair to the Dreyfus Affair, from the Gallic War to the Persian Gulf, from Druidic runes and the kaballah to outer space, from the Zimmermann telegram to Enigma to the Manhattan Project, codebreaking has shaped the course of human events to an extent beyond any easy reckoning. Once a government monopoly, cryptology today touches everybody. It secures the Internet, keeps e-mail private, maintains the integrity of cash machine transactions, and scrambles TV signals on unpaid-for channels. David Kahn's The Codebreakers takes the measure of what codes and codebreaking have meant in human history in a single comprehensive account, astonishing in its scope and enthralling in its execution. Hailed upon first publication as a book likely to become the definitive work of its kind, The Codebreakers has more than lived up to that prediction: it remains unsurpassed. With a brilliant new chapter that makes use of previously classified documents to bring the book thoroughly up to date, and to explore the myriad ways computer codes and their hackers are changing all of our lives, The Codebreakers is the skeleton key to a thousand thrilling true stories of intrigue, mystery, and adventure. It is a masterpiece of the historian's art.

The Code Book

The Secret History of Codes and Codebreaking
Author: Simon Singh
Publisher: Fourth Estate (GB)
ISBN: 9781857028898
Category: Ciphers
Page: 402
View: 5947
It's known as the science of secrecy: cryptography, the encoding and decoding of private information. Singh follows the evolution of secret writing with a clarity that lets the reader enjoy the captivating story while easily absorbing the details of cryptography.

Secret History

The Story of Cryptology
Author: Craig P. Bauer
Publisher: CRC Press
ISBN: 1466561874
Category: Computers
Page: 620
View: 2711
Winner of an Outstanding Academic Title Award from CHOICE Magazine Most available cryptology books primarily focus on either mathematics or history. Breaking this mold, Secret History: The Story of Cryptology gives a thorough yet accessible treatment of both the mathematics and history of cryptology. Requiring minimal mathematical prerequisites, the book presents the mathematics in sufficient detail and weaves the history throughout the chapters. In addition to the fascinating historical and political sides of cryptology, the author—a former Scholar-in-Residence at the U.S. National Security Agency (NSA) Center for Cryptologic History—includes interesting instances of codes and ciphers in crime, literature, music, and art. Following a mainly chronological development of concepts, the book focuses on classical cryptology in the first part. It covers Greek and Viking cryptography, the Vigenère cipher, the one-time pad, transposition ciphers, Jefferson’s cipher wheel, the Playfair cipher, ADFGX, matrix encryption, World War II cipher systems (including a detailed examination of Enigma), and many other classical methods introduced before World War II. The second part of the book examines modern cryptology. The author looks at the work of Claude Shannon and the origin and current status of the NSA, including some of its Suite B algorithms such as elliptic curve cryptography and the Advanced Encryption Standard. He also details the controversy that surrounded the Data Encryption Standard and the early years of public key cryptography. The book not only provides the how-to of the Diffie-Hellman key exchange and RSA algorithm, but also covers many attacks on the latter. Additionally, it discusses Elgamal, digital signatures, PGP, and stream ciphers and explores future directions such as quantum cryptography and DNA computing. With numerous real-world examples and extensive references, this book skillfully balances the historical aspects of cryptology with its mathematical details. It provides readers with a sound foundation in this dynamic field.

A Material History of Medieval and Early Modern Ciphers

Cryptography and the History of Literacy
Author: Katherine Ellison,Susan Kim
Publisher: Routledge
ISBN: 135197307X
Category: Literary Criticism
Page: 286
View: 2983
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.

Mysterious Messages: A History of Codes and Ciphers

A History of Codes and Ciphers
Author: Gary Blackwood
Publisher: Penguin
ISBN: 9781101151013
Category: Juvenile Nonfiction
Page: 144
View: 4493
History?s amazing secrets and codes?and how to crack them yourself. This fascinating look at history?s most mysterious messages is packed with puzzles to decode and ciphers that kids can use themselves. Here are the encrypted notes of Spartan warriors, the brilliant code-crackers of Elizabeth I, secret messages of the American Revolution, spy books of the Civil War, the famous Enigma Machine, and the Navajo code talkers. As computers change the way we communicate, codes today are more intriguing than ever. From invisible ink to the CIA, this exciting trip through history is a hands-on, interactive experience? so get cracking!

Codes, Ciphers and Secret Writing

Author: Martin Gardner
Publisher: Courier Corporation
ISBN: 0486320316
Category: Games & Activities
Page: 96
View: 1335
Cipher and decipher codes: transposition and polyalphabetical ciphers, famous codes, typewriter and telephone codes, codes that use playing cards, knots, and swizzle sticks . . . even invisible writing and sending messages through space. 45 diagrams.

The Mathematics of Secrets

Cryptography from Caesar Ciphers to Digital Encryption
Author: Joshua Holden
Publisher: Princeton University Press
ISBN: 0691184550
Category: Computers
Page: 391
View: 4786
The Mathematics of Secrets takes readers on a fascinating tour of the mathematics behind cryptography—the science of sending secret messages. Using a wide range of historical anecdotes and real-world examples, Joshua Holden shows how mathematical principles underpin the ways that different codes and ciphers work. He focuses on both code making and code breaking and discusses most of the ancient and modern ciphers that are currently known. He begins by looking at substitution ciphers, and then discusses how to introduce flexibility and additional notation. Holden goes on to explore polyalphabetic substitution ciphers, transposition ciphers, connections between ciphers and computer encryption, stream ciphers, public-key ciphers, and ciphers involving exponentiation. He concludes by looking at the future of ciphers and where cryptography might be headed. The Mathematics of Secrets reveals the mathematics working stealthily in the science of coded messages. A blog describing new developments and historical discoveries in cryptography related to the material in this book is accessible at

The Code Book: The Secret History of Codes and Code-breaking

Author: Simon Singh
Publisher: HarperCollins UK
ISBN: 0007378300
Category: Science
Page: 416
View: 1639
The Science of Secrecy from Ancient Egypt to Quantum Cryptography From the best-selling author of Fermat’s Last Theorem, The Code Book is a history of man’s urge to uncover the secrets of codes, from Egyptian puzzles to modern day computer encryptions.

Secret Messages

A Collection of Puzzles Using Codes and Ciphers
Author: Jeff Hawtin
Publisher: Parkwest Publications
ISBN: 9780906212783
Category: Juvenile Nonfiction
Page: 48
View: 390
This book is a light-hearted dash through the history of cryptography with plenty of amusing messages, jokes, and riddles to encipher and decipher. With the end of the cold war and increasing European unity there is no need to treat cryptography as a subject only appropriate to espionage and warfare. Many children from about eight or nine upwards will find learning about ciphers as great a delight as learning chess, or tackling some good brain teasers. If they like excruciating jokes or "groan" riddles, so much the better.

Codes and Ciphers

Julius Caesar, the Enigma, and the Internet
Author: Robert Churchhouse,R. F. Churchhouse,Churchhouse R. F.
Publisher: Cambridge University Press
ISBN: 9780521008907
Category: Business & Economics
Page: 240
View: 334
This book describes and analyses many cipher systems ranging from the earliest and most elementary to the most recent and sophisticated(RSA and DES).


The History of Secret Communication
Author: Stephen Pincock
Publisher: Bloomsbury Publishing USA
ISBN: 0802715478
Category: Computers
Page: 176
View: 1550
A four-thousand-year history of cryptography ranges from the time of the ancient Egyptian pharaohs to the present, explaining encryption's development and evolution, looking at famous codes, and offering clues for code-breaking.

Decrypted Secrets

Methods and Maxims of Cryptology
Author: Friedrich Ludwig Bauer
Publisher: Springer Science & Business Media
ISBN: 9783540426745
Category: Computers
Page: 473
View: 2930
In today's extensively wired world, cryptology is vital for guarding communication channels, databases, and software from intruders. Increased processing and communications speed, rapidly broadening access and multiplying storage capacity tend to make systems less secure over time, and security becomes a race against the relentless creativity of the unscrupulous. The revised and extended third edition of this classic reference work on cryptology offers a wealth of new technical and biographical details. The book presupposes only elementary mathematical knowledge. Spiced with exciting, amusing, and sometimes personal accounts from the history of cryptology, it will interest general a broad readership.

A Brief History of Cryptology

Author: J. V. Boone
Publisher: Naval Inst Press
ISBN: 9781591140849
Category: Computers
Page: 192
View: 4762
Retired from the US military and National Security Agency, and private enterprise, Boone noticed that when technical specialists talk about cryptology the science and art of making and breaking codes or cyphers they generally talk to each other and confuse everyone else. So, he set out to create a bridge between the technical aspects, mostly comple

Codes and ciphers

secret writing through the ages
Author: John Laffin
Publisher: Abelard-Schuman Ltd
Category: Business & Economics
Page: 152
View: 989
An explanation of the development, methods, and use of cryptography throughout history

The Cracking Code Book

Author: Simon Singh
Publisher: HarperCollins UK
ISBN: 0007484992
Category: Juvenile Nonfiction
Page: 272
View: 8695
How to make it, break it, hack it, crack it. The secret history of codes and code breaking. Simon Singh’s best-selling title The Code Book now re-issued for the young-adult market.

Secret and Urgent

The Story of Codes and Ciphers
Author: Fletcher Pratt
Publisher: N.A
ISBN: 9780894122613
Category: History
Page: 282
View: 2956