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Part A: Vigenere Cipher
Part B: Caesar Cipher: A Brute Force Approach
Part C: Hill Cipher
Part A: The Vigenere Cipher
Given the following standard Vigenere square/table and the keyword CEIS, encrypt the message THE SKY IS FALLING (no spaces). Explain in words the steps taken to produce the cipher text. Afterward, reverse the process and decrypt the cipher text back to the plain text. Again explain in words the steps followed to produce the plain text. Be precise!
(See the next page for the Vigenere square/table).
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