Perhaps the most damning evidence given is a report made by Hamilton's own Chief Cipher Officer
, Captain Orlo Williams: "I find that my ideas are quite correct, that he really does nothing at all, never has a scheme, has a shallow, at rimes obstinate mind, no grasp of detail" (p.
The communications and cipher officer
, who was honoured by the Foreign Secretary in 2004 for serving 25 years at the Foreign Office, told detectives he was unsettled in his secondment to the Cabinet Office.
She got her first taste for adventure from the six years she spent working across Europe and North Africa in the Women's Auxiliary Air Force as a code and cipher officer
Most of encryption method that has been broken, was solved as a result of a tiny error on the part of the cipher officer
. As with Germany's ENIGMA encryption, Stuart Milner-Barry wrote that if not for human errors, "[it] was intrinsically a perfectly secure machine." Nature of Data Lifetime Minimum [Symmetric] Key Length Tactical military minutes/hours 56-64 bits information Product announcements, days/weeks 64 bits mergers Long-term business plans years 64 bits Trade secrets decades 112 bits H-bomb secrets >40 years 128 bits Identities of spies >50 years 128 bits Personal affairs >50 years 128 bits Diplomatic >65 years at least 128 bits embarrassments U.S.
Capt Atholl served as a senior cipher officer
in the Argyll and Sutherland Highlanders.
After a period spent as a cipher officer
, he was seconded in 1942 to the U.S.