Christopher Taliaferro - Ch119541 Security in Computing - CBC Vigenere ***ENCRYPTION*** 1) Run this command in eustis. "gcc -o encipher V_encipher.c" (without quotes) 2) Run "encipher" followed by plaintext file name, keyword, and IV keep in mind that the keyword and IV MUST be the same length & lowercase. "./encipher plaintext.txt cool bean" (without quotes) 3) The encryption program will write the ciphertext to a file named "ciphertext.txt". ***DECRYPTION*** 1) Run this command in eustis. "gcc -o decipher V_decipher.c" (without quotes) 2) Run "decipher" followed by ciphertext file name, keyword, and IV. Keep in mind that the keyword and IV MUST be the same length & lowercase & must be the same as the encryption program's. "./decipher ciphertext.txt cool bean" (without quotes)