MATH/CSCI 4116 Cryptography Assignment 3 1. Find ‘(2007), ‘(2008), and ‘(b), where b is the integer obtained from the last four digits of your student number. 2. Find the smallest nonnegative integers x such that (a) 7x ? 8 (mod 5)

(c) 5x ? 7 (mod 11). (b) 9x ? 6 (mod 7)