Encryption Playground
Encode and decode messages with different ciphers. Understand the basics of cryptography.
Select Cipher
How It Works
Shift each letter by a fixed number of positions. These are simple substitution ciphers used for learning. Modern encryption uses much more complex algorithms.
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Key Concepts
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1
Substitution Ciphers
Replace each character with another according to a fixed rule
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2
Symmetric Encryption
Same key (or rule) is used for both encryption and decryption
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3
Modern Encryption
Real-world encryption uses complex algorithms like AES and RSA