Problem
1. True or false? Public-key cryptography makes it convenient to send the same message to several different users. Discuss your answer.
2. What is P(S(M)) for the RSA method for public-key cryptography?
2. RSA encoding might involve computing Mn, where M might be a k-digit number represented in an array of k integers, say. About how many operations would be required for this computation?
4. Implement encryption/decryption procedures for the RSA method (assume that s, p and N are all given and represented in arrays of integers of size 25).