Search results for “Cryptography the science of secret writing”

The Mathematics of Secrets: Cryptography from Caesar Ciphers to Digital EncryptionThe Mathematics of Secrets takes readers on a fascinating tour of the mathematics behind cryptography–the science of sending secret messages. Most books about cryptography are organized historically, or around how codes and ciphers have been used, such as in government and military intelligence or bank transactions. Joshua Holden instead shows how mathematical principles underpin the ways that different codes and ciphers operate. Holden focuses on both code making and code breaking and he discu…

Cryptography: The Science of Secret Writing“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 ReviewReaders 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 Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography“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 ReviewReaders 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 Secret War: Spies, Ciphers, and Guerrillas, 1939-1945NEW YORK TIMES BESTSELLER From one of the foremost historians of the period and the acclaimed author of Inferno and Catastrophe: 1914, The Secret War is a sweeping examination of one of the most important yet underexplored aspects of World War II—intelligence—showing how espionage successes and failures by the United States, Britain, Russia, Germany, and Japan influenced the course of the war and its final outcome.Spies, codes, and guerrillas played unprecedentedly critical roles in the Se…

Codes, Ciphers and Secret Writing (Dover Children's Activity Books)“A fascinating, challenging book.” ― A.L.A. BooklistLearn to use the most important codes and methods of secret communication in use since ancient times. Cipher and decipher codes used by spies. Explore the famous codes that changed the fate of nations and political leaders. And enjoy hours of fun experimenting with cryptography ― the science of secret writing.Beginning with simple letter substitutions and transposition ciphers, world-famous science writer Martin Gardner explains how to bre…

The Secret History of World War II: Spies, Code Breakers, and Covert OperationsFrom top secret spy missions to recently declassified WWII documents, this richly illustrated account of the covert espionage operations of World War II takes readers behind the battle lines and into the undercover war effort.  Includes recently released never-before-seen photographs, coded messages, classified maps, and over 700 rare artifacts that shed light on the war’s darkest secrets.     From the authors who created Eyewitness to World War II and numerous other best-selling illustrate…

Body of Secrets: Anatomy of the Ultra-Secret National Security AgencyFrom top secret spy missions to recently declassified WWII documents, this richly illustrated account of the covert espionage operations of World War II takes readers behind the battle lines and into the undercover war effort.  Includes recently released never-before-seen photographs, coded messages, classified maps, and over 700 rare artifacts that shed light on the war’s darkest secrets.     From the authors who created Eyewitness to World War II and numerous other best-selling illustrate…

The Cryptoclub: Using Mathematics to Make and Break Secret CodesJoin the Cryptokids as they apply basic mathematics to make and break secret codes. This book has many hands-on activities that have been tested in both classrooms and informal settings. Classic coding methods are discussed, such as Caesar, substitution, Vigenère, and multiplicative ciphers as well as the modern RSA. Math topics covered include: – Addition and Subtraction with, negative numbers, decimals, and percentages – Factorization – Modular Arithmetic – Exponentiation – Prime Numbers – Fr…

The Secret Lives of Codebreakers: The Men and Women Who Cracked the Enigma Code at Bletchley ParkINTERNATIONAL BESTSELLERGo behind the scenes of the top-secret setting of The Imitation GameA remarkable look at day-to-day life of the codebreakers whose clandestine efforts helped win World War IIBletchley Park looked like any other sprawling country estate. In reality, however, it was the top-secret headquarters of Britain’s Government Code and Cypher School—and the site where Germany’s legendary Enigma code was finally cracked. There, the nation’s most brilliant mathematical minds—…

Secret Warriors: The Spies, Scientists and Code Breakers of World War IA startling and vivid account of World War I that uncovers how wartime code-breaking, aeronautics, and scientific research that laid the foundation for much of the innovations of the twentieth century. World War I is often viewed as a war fought by armies of millions living and fighting in trenches, aided by brutal machinery that cost the lives of many. But behind all of this an intellectual war was also being fought between engineers, chemists, code-breakers, physicists, doctors, mathematicians…