代写 R C++ algorithm Scheme Java python graph network security theory CMPT471 19-1 Assignment 4 1 Problem 1 (8 points), due by 17:00 March 29
CMPT471 19-1 Assignment 4 1 Problem 1 (8 points), due by 17:00 March 29 (1) (4 points) Substitution and transposition are basic techniques for encryption schemes. • Below is a substitution encryption scheme example defined by permutation π: ABCDEFGHIJKLMNOPQRSTUVWXYZ VMLCBGKYQUSOPAXEJTWFRWHPZI To encrypt a plaintext, the scheme substitutes each character α in the plaintext by the […]