Question
Consider the following ciphertext message KLHFROPTHI WRECRLEUVH HJXLEIGKSE VGRDILJXKV THIWRECRLH HTMGVXRSI. We know it was encrypted according to Vigen`ere square, with a keyword of 3
Consider the following ciphertext message
KLHFROPTHI WRECRLEUVH HJXLEIGKSE VGRDILJXKV THIWRECRLH HTMGVXRSI.
We know it was encrypted according to Vigen`ere square, with a keyword of 3 letters.
(a) List all letters in column 1, column 2, and column 3 corresponding respectively to the first, the second, and the third letter of the keyword.
(b) Calculate the index of coincidence for each of the 3 columns.
(c) Determine the three letters of the keyword. Note that the ciphertext letter associated with the plaintext letter e in each column may not be the top letter in such a short message.
(d) Decipher the message.
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Principles of Operations Management Sustainability and Supply Chain Management
Authors: Jay Heizer, Barry Render, Chuck Munson
10th edition
978-0134183954, 134183959, 134181980, 978-0134181981
