The Hut Six Story: Breaking the Enigma CodesMcGraw-Hill, 1982 - 326 Seiten "Now, for the first time, the insider's view of the Enigma story and other clandestine operations is revealed by Gordon Welchman, a top British mathematician who was largely responsible for the crucial achievements at Bletchley Park in the first months of the war"--Jacket. |
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Seite 46
... cipher clerk carried out a preliminary procedure . He chose a wheel setting at random , say VIN , which we will call the " indicator setting . " He then set his scrambler wheels to VIN and encoded his chosen text setting twice over ...
... cipher clerk carried out a preliminary procedure . He chose a wheel setting at random , say VIN , which we will call the " indicator setting . " He then set his scrambler wheels to VIN and encoded his chosen text setting twice over ...
Seite 47
... cipher machine . Getting an Enigma message on the air involved three people : the originator , a cipher clerk , and a radio operator . The originator would prepare the clear text on a standard form , at the top of which he would note ...
... cipher machine . Getting an Enigma message on the air involved three people : the originator , a cipher clerk , and a radio operator . The originator would prepare the clear text on a standard form , at the top of which he would note ...
Seite 49
... clerk recovers the original clear text word , TARGET . However , let me repeat that in order to get the same sequence of substitutions , the receiving cipher clerk would have to know two things - the key to which he must set up his ...
... clerk recovers the original clear text word , TARGET . However , let me repeat that in order to get the same sequence of substitutions , the receiving cipher clerk would have to know two things - the key to which he must set up his ...
Inhalt
PROLOGUE | 1 |
PART ONE Backdrop to Hut | 5 |
Britain Went to War | 7 |
Urheberrecht | |
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Häufige Begriffe und Wortgruppen
able achieved activities AFAC Air Force aircraft Alamein Alastair Denniston attack battle Bletchley Park blitzkrieg bombe breaking British callsigns capabilities Chatham cipher clerk cipher machine command communications system coordinated crib cryptanalytical cryptographic Decoding Room developed diagonal board diagram Dilly Dilly Knox drums early enciphered encoded enemy Enigma keys Enigma machine Enigma message Enigma traffic equipment female Figure frequency German German Enigma handle Hut 6 Ultra idea important in-out terminals indicator setting intercept operators intercept stations involved Josh Cooper JTIDS keyboard lampboard letter pairings Machine Room military MITRE Morse code North Vietnam organization panzer planning Polybius square positions possible preamble problem procedures ring settings Rommel scrambler scrambler unit sheets signals Sillies Soviet staff stecker steckerboard story success tactical task teleprinter test register text setting thinking three wheels tion traffic register Travis Turing twenty-six U.S. Army umkehrwalze Vietnam wheel order World War II Wrens
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