Question

1. Dexter wants to set up his own public keys. He chooses p = 23 and q = 37 with e = 5. Answer the following using RSA cryptographic method: a) Encrypt the message ‘100’ and find the CIPHER number (C) to be sent. ‘100’ should be taken together as M while computing encryption [5 Marks] C = Me mod pq (Use This Formula) b) Find the decryption key ‘d’, using extended Euclidean GCD algorithm. [10 Marks] c) Now decrypt the message ‘10’ (this is the CIPHER message received). [5 Marks] M = Cd mod pq (Use This Formula)

pls answer me within an hour important

Answer 1