The AES Cipher Begins and Ends with A(n) _________ Stage

question 21

Multiple Choice

the AES cipher begins and ends with a(n) _________ stage because any other stage, applied at the beginning or end, is reversible without knowledge of the key and
Would add no security.

• A)Substitute bytes
• B)AddRoundKey
• C)MixColumns
• D)ShiftRows

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Definitions:

Supply Chain Reaction Times

The time it takes for the elements within a supply chain to respond to changes in demand, supply, or other external factors.

Closed-Loop Systems

Systems designed to recycle or reuse resources or materials, minimizing waste and potentially returning them back into the supply cycle.

Reverse Systems

Systems designed for managing the return process of products from consumers back to retailers or manufacturers, often for recycling, repairing, or disposing of defective items.

Sustainability

The ability to maintain or improve systems and processes in a way that ensures long-term environmental balance, social equity, and economic viability.