Write 750 - 800 words that respond to the following questions:What are cryptography and cryptanalysis? What is earlier reason for the use of cryptography? What is cryptographic key. And what is used

Write 750 - 800 words that respond to the following questions:

1. What are cryptography and cryptanalysis?
2. What is earlier reason for the use of cryptography?
3. What is cryptographic key. And what is used for? What is a more formal name for a cryptographic key?
4. List and explain the three basic operations in cryptography?
5. What does it mean to be “Out of band”? Why is it important to exchange keys out of bank in symmetric encryption?

Note from Prof:

1. Be in APA format including your references and 750 - 800 words long (not including title and references).
2. Do not re-state the questions and Include at least two sources (i.e. two references).