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 shows two possibilities, both of which follow from the definition of CBC. Which of the two would you choose and why:

Formulate a research goal or purpose statement related to addressing the problem you identified. Review the samples in this week’s materials for guidance. Don’t worry about identifying your intended research methodology (e.g., “phenomenological”, “quantitative”). Try to explain in 1-3 short paragraphs what you would hope to accomplish if you were to try to attack the problem you previously identified.