All the Following Statements About Symmetric Key Cryptography Are True

question 1

Multiple Choice

All the following statements about symmetric key cryptography are true except:

• A) in symmetric key cryptography, both the sender and the receiver use the same key to encrypt and decrypt a message.
• B) the Data Encryption Standard is a symmetric key encryption system.
• C) symmetric key cryptography is computationally slower.
• D) symmetric key cryptography is a key element in digital envelopes.

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Definitions:

Incremental Manufacturing Cost

Refers to the additional cost incurred for producing one more unit of a product.

Contribution Margin

The amount remaining from sales revenue after all variable expenses have been deducted, indicating how much revenue is available to cover fixed costs and generate profit.

Direct Manufacturing Cost

The sum of all the costs directly associated with the production of a good, including raw materials and direct labor.

Indirect Manufacturing Costs

Costs related to production that cannot be directly traced to specific products, such as maintenance and utilities.