Did the CST620-msg. txt and CST620-original-msg. txt files match? • How do you encrypt and decrypt a message using a certificate? • Did the CST620-msg2.txt and CST620-original-msg2.txt files match? • How do you sign a message? • What happens when you try to decrypt an encrypted message with the wrong key or certificate? • How can you verify a message has not been altered? • What happens when a message is changed before getting to its destination, such as in a man-in-the-middle attack?