Cryptography

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Encryption

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a way to conceal information by altering it so that it appears to be random data.

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Decryption

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the process of converting encrypted data (ciphertext) back into its original, readable form (plaintext) using a specific algorithm and key, effectively reversing the encryption process. 

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Caesar Cipher

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Method in which each letter in the plaintext is replaced by a letter some fixed number of positions down the alphabet.

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What is this?

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Caesar Cipher Wheel

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Cryptography

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The practice of encrypting and decrypting information.

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Algorithm

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a precise set of instructions that tells a computer program what to do.

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Plaintext

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decrypted data

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ciphertext

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data that has been encrypted

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Cryptanalysis

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study of a cryptographic system in order to break the code and return the encrypted text back to plaintext

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substitution encryption

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When you replace a character with a different character