Using the APA writing style, write a 4–5 page paper that answers the questions below. Be prepared to fully support your answers. Within the identified paper structure below, explain in your own words the following: 

• Title Page
• Introduction
• Main Body:
  • What is the history of DES, and why is s-DES studied?
  • How does DES and 3DES work? Provide an example of each.
  • Explain the following ingredients that decide the algorithm in the Fiestel cipher:
    • Block size Key size
    • Subkey generation
    • Round function
    • Fast software encryption/decryption
    • Ease of Analysis
• Conclusion
• APA Reference List (Note: Make sure to also include intext citations)