Project 1 – Block Encryption in CBC using 3DES

I’m studying for my Computer Science class and don’t understand how to answer this. Can you help me study?

For this project, you will solve the problem presented using Figure 7.17 ((Check the attachment) ) located in our text and write a 2-3 page report that includes the following:

  • 2-3 pages of content minimum (does not include cover, abstract or references pages)
  • The paper must conform to full APA guidelines to include a cover page, abstract, headers, introduction, body paragraphs with appropriate headings/subheadings, conclusion, and a reference page.
  • All sources must be cited and referenced. Remember, unless the statement is common knowledge, you must cite and reference your sources.
  • You must use at least one peer-reviewed source

Problem: You want to build a hardware device to do block encryption in the cipher block chaining (CBC) mode using an algorithm stronger than DES. 3DES is a good candidate. Figure 7.17 (Check the attachment) shows two possibilities, both of which follow from the definition of CBC. Which of the two would you choose and why:

  1. For security?
  2. For performance?

You must fully explain and support your justification and reasoning.



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