Write a C++ program to choose two three-digit primes and an encryption exponent (3 or 17 may do nicely).
a) Use these parameters to define an RSA cryptosystem.
b) Take any 4-digit integer and encrypt that number with the RSA system defined above.
c) Find the corresponding decryption exponent and verify that everything worked.
d) What would be the digital signature (unhashed) corresponding to your message?