Feistel Ciphers: Security Proofs and Cryptanalysis, Nachef Valerie, Patarin Jacques, Volte Emmanuel
Автор: Eli Biham; Adi Shamir Название: Differential Cryptanalysis of the Data Encryption Standard ISBN: 1461393167 ISBN-13(EAN): 9781461393160 Издательство: Springer Рейтинг: Цена: 12805.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: DES, the Data Encryption Standard, is the best known and most widely used civilian cryptosystem.
The 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 discusses the majority of ancient and modern ciphers currently known.
Holden begins by looking at substitution ciphers, built by substituting one letter or block of letters for another. Explaining one of the simplest and historically well-known ciphers, the Caesar cipher, Holden establishes the key mathematical idea behind the cipher and discusses how to introduce flexibility and additional notation. Holden goes on to explore polyalphabetic substitution ciphers, transposition ciphers, including one developed by the Spartans, connections between ciphers and computer encryption, stream ciphers, and ciphers involving exponentiation. He also examines public-key ciphers, where the methods used to encrypt messages are public knowledge, and yet, intended recipients are still the only ones who are able to read the message. He concludes with a look at the future of ciphers and where cryptography might be headed. Only basic mathematics up to high school algebra is needed to understand and enjoy the book.
With a plethora of historical anecdotes and real-world examples, The Mathematics of Secrets reveals the mathematics working stealthily in the science of coded messages.
Автор: D`agapeyeff, Alexander Название: Codes and ciphers - a history of cryptography ISBN: 1443736910 ISBN-13(EAN): 9781443736916 Издательство: Неизвестно Рейтинг: Цена: 8091.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: 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.
Автор: Reeds James A Название: Breaking Teleprinter Ciphers at Bletchley Park: An Edition o ISBN: 0470465891 ISBN-13(EAN): 9780470465899 Издательство: Wiley Рейтинг: Цена: 19317.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This is a critical, learned edition of the General Report on Tunny with Emphasis on Statistical Methods (aka The Newmanry Report), prepared in 1945 and declassified in 2000. The Report was a technical account of what the team of cryptanalysts did in their work at Bletchley Park during WWII.
A mathematical tour of some of the greatest unsolved ciphers of all time
In 1953, a man was found dead from cyanide poisoning near the Philadelphia airport with a picture of a Nazi aircraft in his wallet and an enciphered message taped to his abdomen. In 1912, a book dealer named Wilfrid Voynich came into possession of an illuminated cipher manuscript once belonging to Emperor Rudolf II, who was obsessed with alchemy and the occult. Wartime codebreakers tried--and failed--to unlock the book's secrets, and it remains an enigma to this day. In this lively and entertaining book, Craig Bauer examines these and other vexing ciphers yet to be cracked. Some may reveal the identity of a spy or serial killer, provide the location of buried treasure, or expose a secret society--while others may be elaborate hoaxes. He lays out the evidence surrounding each cipher, describes the efforts to decipher it, and invites readers to try their hand at puzzles that have stymied so many others.
ООО "Логосфера " Тел:+7(495) 980-12-10 www.logobook.ru
