You just graduated from college with a degree in cybersecurity and hired as Dr. Krypto the question-and-answer person for a popular magazine called Practical Crypto. Readers of your magazine are invited to submit letters to Dr. Krypto, who answers them in Dear Abby style in a special section of the magazine. One day you receive the following letter:

Dear Dr. Krypto,

I received a message in my mailbox today that says

Ho Ho Ho!

A message especially for you Kid! Let no one see it or the magic will vanish! Let me know how I can send you the key to decrypt it.

Santa

North Pole

The message has an attachment file and when I open the file it looks gibberish. I am not sure what to do at this point. How can I get the secret key from Santa? Please help me read my special message!

Sincerely,

Kid

P.S. I can communicate with Santa via email over the Internet. The protocol we use, however, does NOT encrypt our communication. This is the only way I can communicate with Santa.

Can you help Kid? Your task is to write an answer to Kid describing what he needs in order to be able to read the message from Santa. Include the reasons for your suggestions as one of your goals is for your readers to learn from your section. Be mindful of your followers who do not know much about computers or security. Dont confuse Kid and your followers by using any special crypto or computer terms unless you explain clearly what they mean. Success of your section depends on how effective your response is on your audience. Because space in your magazine is limited, restrict your answer to 250 words.