Find the Cipher text using the following block diagram if the relevant information are as under: Plaintext: 1 0 | 1110|1 0 Expansion Permutation Block: |2 3143 2 |110011 Key: | 3|1 4 2 Block: 0 1 2 3 4 0 14 4 10 15 7 3 14 2 4 1 | 14 | 8 | 13 Permutation 56 7 8 9 10 | 11 | 12 | 13 14 15 10 6 12 5 | 9 | 0 | 7 13 1 10 6 12 11 9 5 3 8 S-Box: 13 1 2 15 11 8 3 6 2 11 15 12 9 7 13 10 5 0 3 15 12 8 2 | 4 9| 1 | 7| 5 11 | 3 | 14 10 0 6 13 2.
Find the Cipher text using the following block diagram if the relevant information are as under: Plaintext: 1 0 | 1110|1 0 Expansion Permutation Block: |2 3143 2 |110011 Key: | 3|1 4 2 Block: 0 1 2 3 4 0 14 4 10 15 7 3 14 2 4 1 | 14 | 8 | 13 Permutation 56 7 8 9 10 | 11 | 12 | 13 14 15 10 6 12 5 | 9 | 0 | 7 13 1 10 6 12 11 9 5 3 8 S-Box: 13 1 2 15 11 8 3 6 2 11 15 12 9 7 13 10 5 0 3 15 12 8 2 | 4 9| 1 | 7| 5 11 | 3 | 14 10 0 6 13 2.
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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Question

Transcribed Image Text:In all the below questions, write down the complete description/calculation/encryption/
decryption procedures. Just writing the encrypted or decrypted text is NOT acceptable.
NOTE:
Q-1: Find the Cipher text using the following block diagram if the relevant information are as under:
Plaintext: 10 1110|1|0
Expansion Permutation Block:
2 3 14 3 2
1 10011
Кey:
Permutation
3142 Block:
S-Box:
0 1
2 3 4
8 9 10 11 12
13 14 15
5
6
7
3 10 6 12 5 9 0
10 6 12 11 9 | 5 3 8
0 14
4 13 1
2
15 11
8
3
7
| 1 0
15| 7 3 14
13 1
2
4
1
14 8 13
11
15 12 9
7
13
10
5
3 15
12
8
2
4
9
1
7
11
3
14
10
13
2.
2.
6
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