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Symmetric-key algorithm

technology Maturity 11-13

We use a secret code to hide things.

Simple symmetric encryption-en.svg
Simple symmetric encryption-en.svg
You and a friend use the same key. This key locks the message. Then the same key unlocks it. It keeps your secrets safe. Can you keep a secret?

40 words
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File:Simple symmetric encryption-en.svg
Simple symmetric encryption-en.svg
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📚 Content adapted from Wikipedia | Readability: FK 12.2 | Vital Level 5