The Turing Guide
102 | 11 BREAkING mACHINES wITH A PENCIl that there was little that he, Rejewski, could tell him. ‘Knox grasped everything very ...
BATEy | 103 pairings that specified the day’s Enigma plug connections to encrypt the weather messages. As Rejewski said, this wa ...
104 | 11 BREAkING mACHINES wITH A PENCIl Dilly. As I soon learned, it was serendipity that counted—although this was serendipity ...
BATEy | 105 The first brief message that we broke said ‘Today is the day minus three’, with a command to acknowledge. Unbelievab ...
106 | 11 BREAkING mACHINES wITH A PENCIl the adjoining loft in Cottage 2: Cottage 2 was occupied by one of the maintenance staff ...
BATEy | 107 Railways authority.^19 Turing and Twinn took this on. Colonel John Tiltman had broken into Railway Enigma, helped by ...
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CHAPTER 12 Bombes jack copeland (with jean valentine and catherine caughey) T uring’s Enigma-cracking ‘bombe’ was one of his maj ...
110 | 12 BOmBES noise, like an anarchist’s time bomb’ (as she recollected).^6 On the other hand, Jean Valentine (Fig. 12.12) rem ...
COPElAND | 111 operator which positions the wheels had been twisted to before the message was enciphered. As explained in Chapte ...
112 | 12 BOmBES crypt analysts. ‘We acknowledged only the discipline we imposed on ourselves’ recalled Peter Hilton, who was a m ...
COPElAND | 113 in the little village of Adstock, and in a ‘hut’ in the then-picturesque township of Wavendon. More bombes were i ...
114 | 12 BOmBES bombes had a name, ranging from Ajax to Fünf (a mystery character in Tommy Handley’s It’s That Man Again, a popu ...
COPElAND | 115 delay before we could begin our important work. Perhaps the security people were investigating our backgrounds. A ...
116 | 12 BOmBES The bombes were special-purpose electromechanical computers. What they did was to search at superhuman speed thr ...
COPElAND | 117 on human brains: the whole process revolved around a ‘crib’ that was carefully chosen by a human codebreaker. A c ...
118 | 12 BOmBES the plugboard was the key to the British bombe’s power.^55 Soon, the techniques that Turing pioneered in Victory ...
COPElAND | 119 abbreviated to FORT): since messages were often sent in several parts, FORT was a very handy crib. The common gro ...
120 | 12 BOmBES DAEDAQOZSIQMMKBILGMPWHAIV from KEINEZUSAETZEZUMVORBERIQT. In the real world, however, it would take the bombe im ...
COPElAND | 121 the letter that lights up at its lampboard—is fed into the second Enigma as input, just as though this letter had ...
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