The Codebreakers

Author: David Kahn
Publisher: Simon and Schuster
ISBN: 1439103550
Format: PDF, Docs
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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.

Sichere Netzwerkkommunikation

Author: Roland Bless
Publisher: Springer-Verlag
ISBN: 3540278966
Format: PDF, ePub, Docs
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Netzwerke werden in allen Bereichen der IT eingesetzt, und es gibt zahlreiche Technologien zur sicheren Netzwerkkommunikation. Doch welche der verfügbaren Techniken lassen sich kombinieren und in der Praxis effektiv einsetzen? Die Autoren geben eine fundierte Darstellung der zentralen Techniken zur Sicherung von Netzwerken, behandeln deren wichtigste Grundlagen und Mechanismen und liefern umfassende Beispiele zu aktuellen Protokollen Internet-basierter Netze. Des weiteren werden komplexe Szenarien analysiert, in denen verschiedene Techniken zur Netzwerksicherung eingesetzt werden. Das vorliegende Werk vermittelt einen systematischen Überblick zur sicheren Netzwerkkommunikation, legt den Schwerpunkt aber auf die praktische Sicherheit von Netzwerken. Es ist damit sowohl für Praktiker in der Netzwerktechnik als auch für Entwickler geeignet, die maßgeschneiderte Sicherheitslösungen für Netzwerke konzipieren möchten.

Des K nigs NSA

Author: Tom Hillenbrand
Publisher: epubli
ISBN: 3741855065
Format: PDF, ePub, Docs
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Kontrolle der Kommunikation, Profiling verdächtiger Personen, Doxxen von Gegnern – lange vor der Existenz des Internets entwickelten Europas Monarchen bereits ausgefeilte Systeme zur Bespitzelung ihrer Untertanen. Vor allem Briefe wurden systematisch erbrochen und gelesen. Ein faszinierender Ausflug in das Ziffernkabinett der Habsburger, das Schwarze Kabinett Ludwigs XIV. und die erste Ära der Totalüberwachung.

The U S Domestic Intelligence Enterprise

Author: Darren E. Tromblay
Publisher: CRC Press
ISBN: 1482247747
Format: PDF
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Much has been written about U.S. intelligence operations. However, intelligence, as it is conducted in the U.S. domestic environment, has usually been treated in a fractured and sensationalistic manner. This book dispassionately assesses the U.S. domestically oriented intelligence enterprise by first examining its individual components and then showing how those components, both federal and non-federal, work in conjunction to form an often unacknowledged structure that is more than the sum of its parts. The U.S. Domestic Intelligence Enterprise: History, Development, and Operations takes a unique, in-depth approach that assesses not only the current state of affairs but also the evolution of the domestic intelligence enterprise. To accomplish this, it examines the origins and progress of the major agencies to show why they operate in the way that they do. By providing this perspective, the book promotes an understanding of the factors to consider when developing effective intelligence policy. The book is divided into several thematic sections: The evolution of the domestically oriented intelligence enterprise The collection capabilities of the enterprise The role that domestically-developed intelligence has in the analytical process, which informs decision making The use of intelligence to implement decisions via disruption of threat actors The U.S. Domestic Intelligence Enterprise intends to prompt a rethinking of intelligence within the domestic environment. It takes into account the political realities, the organizational cultures, and the evolving missions that have shaped those agencies responsible for positive and negative intelligence and disruption of threats on American soil. This will hopefully provide a counterweight to future knee-jerk reactions and, instead, inspire a thoughtful approach to the advancement of U.S. strategic interests while protecting the rights of Americans.

Intelligence and Government in Britain and the United States A Comparative Perspective 2 volumes

Author: Philip H.J. Davies
Publisher: ABC-CLIO
ISBN: 1440802815
Format: PDF, Mobi
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Bringing a dose of reality to the stuff of literary thrillers, this masterful study is the first closely detailed, comparative analysis of the evolution of the modern British and American intelligence communities. • U.S. and U.K. case studies that draw on archival and published sources and on interviews with practitioners • Parallel timelines for principal national intelligence coordinating bodies in the United States and United Kingdom • Organization charts for the United States Intelligence Board and the U.K. Joint Intelligence Organisation, both from the early 1960s • An extensive glossary of terms and abbreviations used in the British and American intelligence communities • An extensive bibliography

Cryptonomicon

Author: Neal Stephenson
Publisher: Manhattan
ISBN: 3894806915
Format: PDF, ePub, Docs
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Während des Zweiten Weltkriegs legt Japan mit Unterstützung von Nazi-Deutschland eine gigantische Goldreserve an. Die Alliierten werden zwar auf verschlüsselte Mitteilungen aufmerksam, aber selbst ihren besten Kryptographen gelingt es nicht, den Code zu knacken. Mehr als ein halbes Jahrhundert später stößt eine Gruppe junger amerikanischer Unternehmer im Wrack eines U-Boots auf die Anzeichen einer riesigen Verschwörung und auf das Rätsel um einen verborgenen Schatz.

Enigma

Author: Robert Harris
Publisher: Heyne Verlag
ISBN: 3641108306
Format: PDF, ePub, Mobi
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England im März 1943. In Bletchley Park wird fieberhaft daran gearbeitet, die Wunder-Chiffrier-Maschine Enigma, die den Funkverkehr der deutschen U-Boote verschlüsselt, zu knacken. Eine nahezu unlösbare Aufgabe für den Secret Intelligence Service, der seine letzten Hoffnungen in den genialen Kryptoanalytiker Tom Jericho setzt. Es beginnt ein Wettlauf mit der Zeit, der plötzlich sogar in den eigenen Reihen sabotiert zu werden scheint.