6. This question comes from https en.Wikipedia.org/wiki/Caesar Cipher. Let A equ

Question

6. This question comes from https en.Wikipedia.org/wiki/Caesar Cipher. Let A equal the set of 26 letters of the English alphabet, without regard to lower case or upper case. A bijective function f A A is given by the following table ABCDE E GHI JKLMNOPORSTUVWXYZ XYZAB (CDE GHI JKLMNOPORSTUVW A letter in the top row is mapped by f to the letter below it in the bottom row; for example. f(G) D and f(U) R (a) Compute the image of D, O, G (b) Compute the preimage of A, E, I, O, U (c) Use the inverse function of f todecode the message "IFQQIB PQOLHBP CBII DOBXQ LXHP" (Benjamin Franklin).

Explanation / Answer

a. The image is {A, L, D}

b. The preimage is {D, H, L, R, X}

c. "LITTLE STROKES FELL GREAT OAKS"

Related Questions

Navigate

• Browse (All)
• Browse 6
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.