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: 7874

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 true story of the secret intelligence team that changed the course of the First World War

Author: James Wyllie,Michael McKinley

Publisher: Random House

ISBN: 1473501466

Category: History

Page: 352

View: 6304

While battalions hunkered down in the mud of western France, anti-aircraft guns took aim at zeppelins floating over the capital, and Atlantic convoys tried desperately to evade German U-boats, another, more secret battle was underway. Down gloomy Whitehall corridors a team of eccentric and pioneering codebreakers were fighting for information that would give them a decisive advantage over the enemy. The new technologies of wireless and telegraph were vital for governments and the military, but vulnerable to interception. Cracking the codes used to protect them quickly became a crucial part of the war effort, and London Room 40, led by the charismatic and cunning ‘Blinker’ Hall, was at the centre of this push for intelligence. Not content to wait for enemy communications to come to him, Hall was soon running agents in other countries, particularly in neutral USA where German saboteurs were intent on damaging the essential flow of munitions to Britain. The stories of Bletchley Park and the spies of the Second World War are well known, but it was Room 40 and their colleagues across the intelligence services that started it all. From the docks of New York City to shady Cairo hotels, this is the gripping and fast-paced story of spies, codebreakers and saboteurs.

Versteckte Botschaften (TELEPOLIS)

Die faszinierende Geschichte der Steganografie

Author: Klaus Schmeh

Publisher: Heise Verlag

ISBN: 3957889936

Category: Computers

Page: 320

View: 1865

Die Fantasie der Menschen beim Schmuggeln geheimer Daten ist nahezu grenzenlos: Ein im Schuhabsatz versteckter Mikrofilm, das Tarnen einer Spionagenachricht als Zigarrenbestellung, das Schreiben mit Geheimtinte, das Verbergen von Daten in harmlosen Bildern und Zinken- Codes – dies sind nur einige von unzähligen Beispielen für versteckte Botschaften. Fachleute bezeichnen dieses Verbergen und Schmuggeln von Nachrichten als "Steganografie". Die Steganografie hat eine faszinierende Geschichte. Bevor die Verschlüsselungstechnik Ende des 19. Jahrhunderts deutliche Fortschritte machte, war das Verstecken einer Nachricht oft wirkungsvoller als das Verschlüsseln. Auch heute noch wendet nahezu jeder Mensch steganografische Techniken an – meist ohne es zu wissen. Nach dem großen Erfolg der ersten Auflage erzählt Klaus Schmeh in seiner überarbeiteten Neuausgabe die faszinierende Geschichte dieser versteckten Botschaften, die von den alten Griechen und ihren Wachstafeln über Geheimoperationen im Kalten Krieg bis zu den Computerhackern der Gegenwart reicht. Er nimmt den Leser mit auf eine furiose Reise durch eine Kulturgeschichte voller Intrigen, Verbrechen und Kriege, in der jedoch auch die Falschspielerei oder der Betrug in der Klassenarbeit eine wichtige Rolle spielen. Die Telepolis-Bücher basieren auf dem Themenkreis des Online-Magazins Telepolis. Die Reihe schaut wie das Online-Magazin über den Tellerrand eingefahrener Abgrenzungen hinaus und erörtert Phänomene der digitalen Kultur und der Wissensgesellschaft. Telepolis finden Sie unter

Station X

The Codebreakers of Bletchley Park

Author: Michael Smith

Publisher: Pan Macmillan

ISBN: 9780330419291

Category: Bletchley Park (Buckinghamshire, England)

Page: 216

View: 8773

STATION X tells the true story, as it has never been told before, of the amazing achievements of the codebreakers working at Bletchley Park in the Second World War.In 1939, several hundred people - students, professors, international chess players, junior military officers, actresses and debutantes - reported to a Victorian mansion in Buckinghamshire: Bletchley Park. This was to be 'Station X', the Allies' top-secret centre for deciphering enemy codes. Their task was to break the ingenious Enigma code used for German high-level communications. The settings for the Enigma machine changed continually and each day the German operators had 159 million million million different possibilities. Yet against all the odds this gifted group achieved the impossible, coping with even greater difficulties to break Shark, the U-Boat Enigma, and Fish, the cypher system used by Hitler to talk to his guards.

Codebreaker in the Far East

Author: Alan Stripp

Publisher: Routledge

ISBN: 113628852X

Category: History

Page: 224

View: 1670

This is the first book to describe British wartime success in breaking Japanese codes of dazzling variety and great complexity which contributed to the victory in Burma three months before Hiroshima. Written for the general reader, this first-hand account describes the difficulty of decoding one of the most complex languages in the world in some of the most difficult conditions. The book was published in 1989 to avoid proposed legislation which would prohibit those in the security services from publishing secret information.

A Century of Spies

Intelligence in the Twentieth Century

Author: Jeffery T. Richelson

Publisher: Oxford University Press

ISBN: 9780199761739

Category: History

Page: 544

View: 2625

Here is the ultimate inside history of twentieth-century intelligence gathering and covert activity. Unrivalled in its scope and as readable as any spy novel, A Century of Spies travels from tsarist Russia and the earliest days of the British Secret Service to the crises and uncertainties of today's post-Cold War world, offering an unsurpassed overview of the role of modern intelligence in every part of the globe. From spies and secret agents to the latest high-tech wizardry in signals and imagery surveillance, it provides fascinating, in-depth coverage of important operations of United States, British, Russian, Israeli, Chinese, German, and French intelligence services, and much more. All the key elements of modern intelligence activity are here. An expert whose books have received high marks from the intelligence and military communities, Jeffrey Richelson covers the crucial role of spy technology from the days of Marconi and the Wright Brothers to today's dazzling array of Space Age satellites, aircraft, and ground stations. He provides vivid portraits of spymasters, spies, and defectors--including Sidney Reilly, Herbert Yardley, Kim Philby, James Angleton, Markus Wolf, Reinhard Gehlen, Vitaly Yurchenko, Jonathan Pollard, and many others. Richelson paints a colorful portrait of World War I's spies and sabateurs, and illuminates the secret maneuvering that helped determine the outcome of the war on land, at sea, and on the diplomatic front; he investigates the enormous importance of intelligence operations in both the European and Pacific theaters in World War II, from the work of Allied and Nazi agents to the "black magic" of U.S. and British code breakers; and he gives us a complete overview of intelligence during the length of the Cold War, from superpower espionage and spy scandals to covert action and secret wars. A final chapter probes the still-evolving role of intelligence work in the new world of disorder and ethnic conflict, from the high-tech wonders of the Gulf War to the surprising involvement of the French government in industrial espionage. Comprehensive, authoritative, and addictively readable, A Century of Spies is filled with new information on a variety of subjects--from the activities of the American Black Chamber in the 1920s to intelligence collection during the Cuban missile crisis to Soviet intelligence and covert action operations. It is an essential volume for anyone interested in military history, espionage and adventure, and world affairs.


The Inside Story of Bletchley Park

Author: F. H. Hinsley

Publisher: Oxford University Press, USA

ISBN: 9780192801326

Category: History

Page: 321

View: 7971

With many colourful anecdotes and vivid descriptions, this is the first authentic account of daily life at Government Communications Headquarters, Bletchley Park, the most successful intelligence agency in history. Described by Churchill as the 'secret weapon' that 'won the war', the men and women of Bletchley Park here combine to write their story in full. This book gives fascinating insights into recruitment and training, together with a full and accurate account of codes and ciphersand how they are broken.


The secrets of Bletchley Park's code-breaking computers

Author: B. Jack Copeland

Publisher: OUP Oxford

ISBN: 9780191578212

Category: Computers

Page: 480

View: 4239

At last - the secrets of Bletchley Park's powerful codebreaking computers. This is a history of Colossus, the world's first fully-functioning electronic digital computer. Colossus was used during the Second World War at the Government Code and Cypher School at Bletchley Park, where it played an invaluable role cracking enemy codes. Until very recently, much about the Colossus machine was shrouded in secrecy, largely because the codes that were employed remained in use by the British security services until a short time ago. This book only became possible due to the declassification in the US of wartime documents. With an introductory essay on cryptography and the history of code-breaking by Simon Singh, this book reveals the workings of Colossus and the extraordinary staff at Bletchley Park through personal accounts by those who lived and worked with the computer. Among them is the testimony of Thomas Flowers, who was the architect of Colossus and whose personal account, written shortly before he died, is published here for the first time. Other essays consider the historical importance of this remarkable machine, and its impact on the generations of computing technology that followed.

Inside Room 40

The Codebreakers of World War 1

Author: Paul Gannon

Publisher: Ian Allen Pub

ISBN: 9780711034082

Category: History

Page: 287

View: 7271

When the German cruiser Magdeburg ran aground off the Estonian coast in August 1914, little did the British Admiralty realise that what was onboard the ill-fated vessel would hand them a decisive advantage in the battle for North Sea supremacy, and subsequently lead to the birth of the Government Communications Headquarters. Onboard the Magdeburg was a collection of clandestine codebooks and maps, containing coded squares, which offered invaluable clues as to the whereabouts of the German High Seas Fleet. Before long, the codebooks used by German warships, U-Boats and naval zeppelins, and the ciphers used by the Germans to communicate with their naval attachés and embassies, had also fallen into the Admiralty's possession. Having been gifted with such priceless information, Admiral Oliver, the Director of Naval Intelligence, assembled a team comprising the most talented British cryptologists who, by the end of the war, had deciphered over 15,000 German communications. Operating out of their humble base in Room 40 of the Admiralty Headquarters, and led by Alfred Ewing, who constructed ciphers as a hobby, the team played an integral role in the naval engagements during the war, most notably in detecting major German sorties in the North Sea that led to the battles of Dogger Bank and Jutland. This book will profile those who worked within the smoky, claustrophobic confines of Room 40, their sometimes trying relations with one another, as well as analyse the vital parts each member played throughout the conflict. Critically, their knowledge of the infamous Zimmerman Telegram, the U-Boat menace and the tragic and controversial sinking of the Lusitania, placed them, sometimes reluctantly, at the vanguard of all British naval strategy. Several of those in Room 40 would later go on to break the Enigma codes at Bletchley Park during World War 2, however, the contributions made by these modest few during our nation's darkest episode were just as crucial and cannot be underestimated in their importance...


The Battle For The Code

Author: Hugh Sebag-Montefiore

Publisher: Hachette UK

ISBN: 1780221231

Category: History

Page: 576

View: 7392

The complete story of how the German Enigma codes were broken. Perfect for fans of THE IMITATION GAME, the new film on Alan Turing's Enigma code, starring Benedict Cumberbatch. Breaking the German Enigma codes was not only about brilliant mathematicians and professors at Bletchley Park. There is another aspect of the story which it is only now possible to tell. It takes in the exploits of spies, naval officers and ordinary British seamen who risked, and in some cases lost, their lives snatching the vital Enigma codebooks from under the noses of Nazi officials and from sinking German ships and submarines. This book tells the whole Enigma story: its original invention and use by German forces and how it was the Poles who first cracked - and passed on to the British - the key to the German airforce Enigma. The more complicated German Navy Enigma appeared to them to be unbreakable.

Voices of the Codebreakers

Personal Accounts of the Secret Heroes of World War II

Author: Michael Paterson

Publisher: Greenhill Books

ISBN: 9781784383138

Category: Biography & Autobiography

Page: 288

View: 3015

Alongside the open conflict of World War II there were other, hidden wars - the wars of communication, in which success depended on a flow of concealed and closely guarded information. Smuggled written messages, secretly transmitted wireless signals, or months of eavesdropping on radio traffic meant operatives could discover in advance what the enemy intended to do. This information was passed on to those who commanded the armies, the fleets and the bomber formations, as well as to the other secret agents throughout the world who were desperately trying to infiltrate enemy lines. Vital information that turned the tide of battle in North African desert and on the Pacific Ocean proved to have been obtained by the time-consuming and unglamorous work of cryptanalysts who deciphered the enemy's coded messages, and coded those for the Allies. From the stuffy huts of Bletchley Park to the battles in the Mediterranean, the French and Dutch Resistance movements and the unkempt radio operatives in Burma, the rarely-seen, outstanding stories collected here reveal the true extent of the 'secret war'. The ongoing need for secrecy for decades after the war meant that the outstanding achievements of wartime cryptanalysts could not be properly recognised. With vivid first-hand accounts and illuminating historical research, VOICES OF THE CODEBREAKERS reveals and finally celebrates the extraordinary accomplishments of these ordinary men and women.

The Number of Love (The Codebreakers Book #1)

Author: Roseanna M. White

Publisher: Baker Books

ISBN: 1493418610

Category: Fiction

Page: 384

View: 3144

Three years into the Great War, England's greatest asset is their intelligence network--field agents risking their lives to gather information, and codebreakers able to crack every German telegram. Margot De Wilde thrives in the environment of the secretive Room 40, where she spends her days deciphering intercepted messages. But when her world is turned upside down by an unexpected loss, for the first time in her life numbers aren't enough. Drake Elton returns wounded from the field, followed by an enemy who just won't give up. He's smitten quickly by the intelligent Margot, but how can he convince a girl who lives entirely in her mind that sometimes life's answers lie in the heart? Amid biological warfare, encrypted letters, and a German spy who wants to destroy not just them but others they love, Margot and Drake will have to work together to save themselves from the very secrets that brought them together.

Stealing Secrets, Telling Lies

How Spies and Codebreakers Helped Shape the Twentieth Century

Author: James Gannon

Publisher: Potomac Books, Inc.

ISBN: 1612342078

Category: Espionage

Page: 324

View: 5392

James Gannon examines the impact of many major incidents, such as the Zimmerman telegram interception, deciphering the German Enigma machine, the Soviets' damaging penetration of the British Foreign Service through the "Cambridge Five" spy ring, and the U.S. counterintelligence coup known as Operation Venona (classified until 1995).

The Secrets of Station X

How the Bletchley Park codebreakers helped win the war

Author: Michael Smith

Publisher: Biteback Publishing

ISBN: 1849542627

Category: History

Page: 336

View: 464

The astonishing story of how the British codebreakers of Bletchley Park cracked the Nazi Enigma cyphers, cutting an estimated two years off the Second World War, never ceases to amaze. No one is better placed to tell that story than Michael Smith, whose number one bestseller Station X was one of the earliest accounts. Using recently released secret files, along with personal interviews with many of the codebreakers themselves, Smith now provides the definitive account of everything that happened at Bletchley Park during the war, from breaking the German, Italian and Japanese codes to creating the world’s first electronic computer. The familiar picture of Bletchley Park is of eccentric elderly professors breaking German codes, but in fact the vast majority of people who worked at Bletchley Park were young women. For them and for the young graduates plucked from Britain’s best universities who did the bulk of the day-to-day codebreaking, this was truly the time of their lives. The Secrets of Station X tells their story in full, providing an enthralling account of one of the most remarkable British success stories of all time.


Author: N.A

Publisher: N.A


Category: History

Page: N.A

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The New Codebreakers

Essays Dedicated to David Kahn on the Occasion of His 85th Birthday

Author: Peter Y. A. Ryan,David Naccache,Jean-Jacques Quisquater

Publisher: Springer

ISBN: 3662493012

Category: Computers

Page: 551

View: 1838

This Festschrift volume is published in honor of David Kahn and is the outcome of a Fest held in Luxembourg in 2010 on the occasion of David Kahn’s 80th birthday. The title of this books leans on the title of a serious history of cryptology named “The Codebreakers”, written by David Kahn and published in 1967. This book contains 35 talks dealing with cryptography as a whole. They are organized in topical section named: history; technology – past, present, future; efficient cryptographic implementations; treachery and perfidy; information security; cryptanalysis; side-channel attacks; randomness embedded system security; public-key cryptography; and models and protocols.

The Emperor's Codes

The Breaking of Japan's Secret Ciphers

Author: Michael Smith

Publisher: Arcade Publishing

ISBN: 9781559705684

Category: History

Page: 323

View: 9063

Describes the work and personalities of the codebreakers who deciphered Japanese codes despite vast linguistic differences between English and Japanese, and explains their contributions to Allied success during World War II.

Agent Zigzag

The True Wartime Story of Eddie Chapman: Lover, Traitor, Hero, Spy (reissued)

Author: Ben Macintyre

Publisher: Bloomsbury Publishing

ISBN: 1408806843

Category: History

Page: 384

View: 9364

One December night in 1942, a Nazi parachutist landed in a Cambridgeshire field. His mission: to sabotage the British war effort. His name was Eddie Chapman, but he would shortly become MI5's Agent Zigzag. Dashing and louche, courageous and unpredictable, the traitor was a patriot inside, and the villain a hero. The problem for Chapman, his many lovers and his spymasters was knowing who he was. Ben Macintyre weaves together diaries, letters, photographs, memories and top-secret MI5 files to create the exhilarating account of Britain's most sensational double agent.

Cryptography's Role in Securing the Information Society

Author: National Research Council,Division on Engineering and Physical Sciences,Computer Science and Telecommunications Board,Committee to Study National Cryptography Policy

Publisher: National Academies Press

ISBN: 0309054753

Category: Computers

Page: 720

View: 4603

For every opportunity presented by the information age, there is an opening to invade the privacy and threaten the security of the nation, U.S. businesses, and citizens in their private lives. The more information that is transmitted in computer-readable form, the more vulnerable we become to automated spying. It's been estimated that some 10 billion words of computer-readable data can be searched for as little as $1. Rival companies can glean proprietary secrets . . . anti-U.S. terrorists can research targets . . . network hackers can do anything from charging purchases on someone else's credit card to accessing military installations. With patience and persistence, numerous pieces of data can be assembled into a revealing mosaic. Cryptography's Role in Securing the Information Society addresses the urgent need for a strong national policy on cryptography that promotes and encourages the widespread use of this powerful tool for protecting of the information interests of individuals, businesses, and the nation as a whole, while respecting legitimate national needs of law enforcement and intelligence for national security and foreign policy purposes. This book presents a comprehensive examination of cryptography--the representation of messages in code--and its transformation from a national security tool to a key component of the global information superhighway. The committee enlarges the scope of policy options and offers specific conclusions and recommendations for decision makers. Cryptography's Role in Securing the Information Society explores how all of us are affected by information security issues: private companies and businesses; law enforcement and other agencies; people in their private lives. This volume takes a realistic look at what cryptography can and cannot do and how its development has been shaped by the forces of supply and demand. How can a business ensure that employees use encryption to protect proprietary data but not to conceal illegal actions? Is encryption of voice traffic a serious threat to legitimate law enforcement wiretaps? What is the systemic threat to the nation's information infrastructure? These and other thought-provoking questions are explored. Cryptography's Role in Securing the Information Society provides a detailed review of the Escrowed Encryption Standard (known informally as the Clipper chip proposal), a federal cryptography standard for telephony promulgated in 1994 that raised nationwide controversy over its "Big Brother" implications. The committee examines the strategy of export control over cryptography: although this tool has been used for years in support of national security, it is increasingly criticized by the vendors who are subject to federal export regulation. The book also examines other less well known but nevertheless critical issues in national cryptography policy such as digital telephony and the interplay between international and national issues. The themes of Cryptography's Role in Securing the Information Society are illustrated throughout with many examples -- some alarming and all instructive -- from the worlds of government and business as well as the international network of hackers. This book will be of critical importance to everyone concerned about electronic security: policymakers, regulators, attorneys, security officials, law enforcement agents, business leaders, information managers, program developers, privacy advocates, and Internet users.