A Journey from Ancient Codes to Quantum CryptographyA Journey from Ancient Codes to Quantum Cryptography
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We usually think encryption started with computers.
It didn’t.
Ancient scribes in Mesopotamia altered words to hide trade secrets. Sparta used leather strips to conceal military messages. Kautilya discussed secret writing centuries before modern cryptography.
Later came Caesar shifts, frequency analysis, the Enigma machine, and now quantum key distribution.
The technology changes. The goal stays the same: protect information.
I recently wrote a concise history tracing this evolution from clay tablets to quantum cryptography.
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Abhiram's avatar
Love this framing — tracing encryption back to human intent rather than technology makes it more compelling. The historical arc sets up the Caesar reference nicely.
Debarun's avatar
Thanks, I love writing content about the histories of different sciences and technologies.
Abhiram's avatar
It shows — connecting historical context to modern tech makes the topic much more engaging. Looking forward to more of these.
Debarun's avatar
Sure, been working on a blog post related to mathematics, maybe by next week.
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