Many Symmetric Block Encryption Algorithms Including DES Have a Structure

question 28

Short Answer

Many symmetric block encryption algorithms including DES have a structure first described by _________ of IBM in 1973.

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Definitions:

Selling Price

The amount of money for which a seller offers a product or service to the buyer.

Rate of Profit

A measurement, usually expressed as a percentage, reflecting the profitability of an investment or business compared to the initial cost.

Overhead Expenses

Indirect costs of a business that are not directly linked to a specific product or service, such as rent, utilities, and administrative expenses.

Reclining Chair

A comfortable chair that adjusts to support various sitting and lying positions, often with a tilting back and raising footrest.