Questions tagged [military-encryption]

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2answers
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How were codes in WW1 reciphered (to enhance security levels) without them turning meaningless?

In WW1 the Germans made their communicating secret by encoding their messages. This meant that the sender of the message would have a codebook with all possible words and phrases he might use listed ...
0
votes
1answer
326 views

Choosing encryption algorithms and encryption protocols in military systems

Militaries use their own cryptographic algorithms, those of a private third party, or ones that are openly available. But fear of a backdoor having been planted in publicly-available encryption ...
40
votes
10answers
11k views

Differences between industrial and military cryptography

Industrial and military cryptography should follow the same basic rules, but what does make them different is: Higher key length, protocols unknown to the civilian world, and perhaps unique methods ...
-2
votes
1answer
330 views

Playfair cipher or ADFGX? [closed]

As part of an assignment, I have been given a cipher text of FFFXXXFGXAGFAFDAFXADDAGAD with the following description, ...