BATE
发表于 2025-3-25 05:47:01
Advances in Information SecurityThis chapter discusses methods of attacking additive systems whose book groups are randomly chosen, rather than all being multiples of three. The whole process is much harder. Captured documents often helped in the later years of the Pacific War.
GRIN
发表于 2025-3-25 10:22:48
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利用
发表于 2025-3-25 12:29:25
Communications and SigintThis chapter gives a brief account of the early development of telegraphic and radio communication systems and of the use of message interception techniques to obtain intelligence of diplomatic or operational value. Thus modern Signals Intelligence was born.
conjunctivitis
发表于 2025-3-25 16:24:23
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启发
发表于 2025-3-25 22:22:51
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与野兽博斗者
发表于 2025-3-26 01:29:42
Breaking Additive SystemsThis chapter discusses methods of attacking additive systems whose book groups are randomly chosen, rather than all being multiples of three. The whole process is much harder. Captured documents often helped in the later years of the Pacific War.
FADE
发表于 2025-3-26 04:50:23
Making Additive Systems SecureThis chapter is to some extent a continuation of Sect. 8.19, which gave some general maxims about cipher security in the WW2 era, but its focus is now on additive systems. After some general remarks on secure use of such systems, subsequent sections investigate techniques for improving the security of their various components.
conscribe
发表于 2025-3-26 11:31:29
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Fibrillation
发表于 2025-3-26 12:57:01
Preparedness for Attack?gest that it is quite unlikely that such foreknowledge came from JN-25B. Yet three important items of . intelligence (but not . intelligence) were obtained from JN-25B in the weeks preceding the raid. These, when combined with other available intelligence, indicated that there was a very high risk that American territory would be attacked.
sparse
发表于 2025-3-26 20:42:13
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