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What is cryptography? | Journey into cryptography | Computer Science | Khan Academy

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Published on Mar 27, 2012

What is Cryptography? A story which takes us from Caesar to Claude Shannon.

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Computer Science on Khan Academy: Learn select topics from computer science - algorithms (how we solve common problems in computer science and measure the efficiency of our solutions), cryptography (how we protect secret information), and information theory (how we encode and compress information).

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