Suppose the DES Mangler function mapped every 32-bit value to zero, regardless of the value of its input, what function would DES compute? Solve this question by answering the following 3 sub-questions.What is the result of each round?What is the result after the 16 rounds?Remind DES = Initial permutation + 16 rounds + swap halves + final permutation? Assume the original message is a 64-bit message, i.e., 1 2 3 4 … 64. Specify the bit positions by then end of these 4 operation.Must provide detailed explanation of the calculation steps.

Answered: Suppose the DES Mangler function mapped…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Suppose the DES Mangler function mapped every 32-bit value to zero, regardless of the value of its input, what function would DES compute? Solve this question by answering the following 3 sub-questions.

What is the result of each round?
What is the result after the 16 rounds?
Remind DES = Initial permutation + 16 rounds + swap halves + final permutation? Assume the original message is a 64-bit message, i.e., 1 2 3 4 … 64. Specify the bit positions by then end of these 4 operation.

Must provide detailed explanation of the calculation steps.

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