Problem
Alice and Bob have decided to ignore Kirchhoff's principle and hide the type of the cipher they are using
a. How can Eve decide whether a substitution or a transposition cipher was used?
b. If Eve knows that the cipher is a substitution cipher, how can she decide whether it was an additive, multiplicative, or affine cipher?
c. If live knows that the cipher is a transposition. how can she find the size 01 the section (m)?