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TASK 1 (15 points): Superencrypt “Abstractionism” by using keywords “Painter” for the ADFGVX substitution and “Kandinsky” for the
transposition matrix.
TASK 2 (3 points): Please encrypt Claude Shannon’s quote by using the given key:
“Information is the resolution of uncertainty”
Given key: n+2, n-1, n+1, n-2
Example:
You will encrypt the word “Hello” by using the given key above into “JDMJQ”.
TASK 3 (3 points each, total 6 points): Here is another encryption/decryption exercise. For this exercise, I have provided a word that will serve as the key. You
must figure out the key in order to complete this section.
To get you started: Easy = GXTW (Once you figure out the pattern to this, you can do the following):
3a. Encrypt this plaintext:
Cryptography is the art of secret writing.
3b. Decrypt the following ciphertext:
ALVAC KPLNV GGIEU RJBXY AVPSR OBAVF DC
TASK 4 (7 points): In 1759, Leonhard Euler, the famous mathematician, found the closed knight’s tour for traversing all the cells of the
chessboard only once. Read the text inscribed in the cells of the chessboard along this tour (see Figure 1).
The beginning of the text is at A8.
Please, look through these resources:
Knight’s tour – > https://en.wikipedia.org/wiki/Knight’s_tour 2 ->
http://www.t-bag.org/KTour/voyager0/magicsqr.gif
TASK 5 (4 points): To encrypt messages, John and Jane used Scytale.
“Scytale is a tool used to perform a transposition cipher, consisting of a cylinder with a strip of parchment wound around it
on which is written a message. The ancient Greeks, and the Spartans in particular, are said to have used this cipher to
communicate during military campaigns. The recipient uses a cylinder of the same diameter on which the parchment is
wrapped to read the message. It has the advantage of being fast and not prone to mistakes—a necessary property when on
the battlefield’ (read more here: https://en.wikipedia.org/wiki/Scytale).
John handed Jane a tape on which was written:
Unfortunately, Jane lost her cylinder, but she sees that the tape is full, and knows that while winding the tape, the entire
number of turnovers was made. Help her to recover the message. (Hint: there are 81 characters)
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