Need help with an encryption problem for my IT audit class.

a. Develop a Caesar cipher-type encryption algorithm with a little more complexity in it. For

example, the algorithm could alternatively shift the clear text letters positive and negative by the

amount of the key value. Variations on this are limitless.

b. Select a single-digit key.

c. Code a short message using the algorithm and key.

d. Give your instructor the algorithm, key, clear text, and ciphertext.