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Questions tagged [cryptology]

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Did the Maratha Empire use cryptography techniques for military communication?

After this question of mine was put on hold as being too broad, I would like to know if there is any historical evidence of usage of cryptography techniques for military communication in the Maratha ...
-1
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1answer
287 views

What is the history of cryptography in India? [closed]

I would like to know about the application of cryptography in India during the last 3000 years. Most of the historical accounts of cryptography are from the Roman empire or WWII. Are there any ...
63
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7answers
18k views

Why did Churchill order the destruction of the bombes?

I've read several claims that Churchill ordered the destruction of the Bombe code-breaking machines, but I don't really understand the motivation for it. Can you explain it to me, or give a reference? ...
2
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2answers
236 views

Have there been any attempted bans on cryptography in the past?

As you probably know, many governments are planning on banning strong encryption, not heeding the advice of security experts. My question is, has this ever been tried in the past, and were they ...
14
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2answers
692 views

Cryptography used by Red Army in Polish-Bolshevik war

In a film "Bitwa Warszawska 1920" which tells the story of the Polish-Bolshevik war there is a scene with two cryptographers that are able to break the cipher used by Red Army. Turns out it was a ...
3
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3answers
2k views

What is the source of the claim that Enigma codebreaking efforts shortened the Second World War by years and saved millions of lives? [closed]

Since the release of the film The Imitation Game, it has been widely asserted that The cracking of Germany’s Enigma code shortening the war by two to four years and saving an estimated 14 ...
4
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3answers
1k views

Was the communication between Spitfire and other fighters' pilots encrypted?

If machines like SIGSALLY were occupying so much space like in the picture above, were the pilots' communication encrypted or somehow obscured in order to prevent the enemy from eavesdropping on the ...