cryptography

4. 2. You (A) know your own public and pivate key pair (K,A pub, KA,pr) {(3,11),3), and your friend (B) knows hisher own private key pair (K_B_pub, K_B gri) ((7,T7),43)}. Use these key pairs to illustrate the RSA digital signature scheme by creating and verifying them at both ends. Assume you and your friend have chosen 18 and 17 as messages for signatures. Note: You need to specify any one hash function to create the message digest