For example, a key value of 3 would change the plaintext message “see you tonight” to the ciphertext message “vhh brx wrqljkw”. To decrypt the message, the process is reversed. Firewalls ...

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For example, a key value of three would change the plaintext message “see you tonight” to the ciphertext message “vhh brx wrqljkw”. To decrypt the message, the process is reversed.