1. You and I want to be able to communicate securely with each other through the Internet. We agree to use a public key encryption to achieve this goal. Answer the following questions.

a. Explain how, under  public key encryption, You can send a message to Me, and make sure that only I will be able to read the message. You should include all the steps taken by both You and Me.

b. Explain how, under  public key encryption , after I receive the message, I can verify that it is indeed you who sent the message. You should include all the steps taken by both You and Me.