Asymmetric Key Encryption

In asymmetric key encryption, the private key is held by one party only—the receiver or owner of the data. The sender of the data, who is not considered the owner, uses what we call a public key to encrypt the data. The public key can be held by anyone without jeopardizing any previously encrypted messages. This is considered a more secure way of handling encryption, as only the receiver can decrypt the message.

Exercise 2: Encrypting the String Using the RSA Asymmetric Key Encryption

Encrypt the "My secret message" message using the Rivest–Shamir–Adleman (RSA) asymmetric key encryption. This is a public/private key combination:

1. Open the Chapter10 project in IDEA if it's not already open.
2. Create a new Java class using the File -> New -> Java Class menu.
3. Enter Exercise2 as Name, and then select OK. You should now have an empty class in your project:

   package com.packt.java.chapter10;
   public class...