8. This problem deals with the concepts of confusion and diffusion a. Define the terms confusion and diffusion as used in cryptography. b. Which classic cipher discussed in this chapter employs only confusion? c. Which classic cipher discussed in this chapter employs only diffusion? d. Which cipher discussed in this chapter employs both confusion and diffusion? 14. Encrypt the message: "we are all together" (without the quotation marks) using a double transposition cipher (of the type described in the text) with 4 rows and 4 columns, using the row permutation (1,2,3,4) (2.4.1.3) and the column permutation (1,2,3,4) (3,1,2,4). 8. This problem deals with the concepts of confusion and diffusion a. Define the terms confusion and diffusion as used in cryptography. b. Which classic cipher discussed in this chapter employs only confusion? c. Which classic cipher discussed in this chapter employs only diffusion? d. Which cipher discussed in this chapter employs both confusion and diffusion? 14. Encrypt the message: "we are all together" (without the quotation marks) using a double transposition cipher (of the type described in the text) with 4 rows and 4 columns, using the row permutation (1,2,3,4) (2.4.1.3) and the column permutation (1,2,3,4) (3,1,2,4)