be the plaintext message M = MALAYSIA and the private key, K = ISSOGOOD, Supposed we using the appropriate steps of DES operation and the permutation compression (PC) table provided below get he final output of the key for round 1. a) Based on the output above, explain the next process using the S-box table, and show the output from this operation. b) Based on the output above, explain the next process using a straight permutation table, and show the output from this operation.

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
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1. Let M be the plaintext message M = MALAYSIA and the private key, K = ISSOGOOD, Supposed we using the appropriate steps of DES operation and the permutation compression (PC) table provided below get he final output of the key for round 1. a) Based on the output above, explain the next process using the S-box table, and show the output from this operation. b) Based on the output above, explain the next process using a straight permutation table, and show the output from this operation.
Key Permutation-Compression Table
14
17
11
24
01
05
03
28
15
06
21
10
23
19
12
04
26
08
16
07
27
20
13
02
41
52
31
37
47
55
30
40
51
45
33
48
44
49
39
56
34
53
46
42
50
36
29
32
Transcribed Image Text:Key Permutation-Compression Table 14 17 11 24 01 05 03 28 15 06 21 10 23 19 12 04 26 08 16 07 27 20 13 02 41 52 31 37 47 55 30 40 51 45 33 48 44 49 39 56 34 53 46 42 50 36 29 32
S-Box Table
s1
1e
12
S2
15
S3
13
13
1 1e
13
54
13
10
S6
S7
11
S8
13
1 15
13
1e
7.
11
2.
1
14
11
Straight Permutation Table
16
07
21
01
15
26
02
08
14
27
19
13
06
11
AN 00
2O27
iname
inonm
00
munoo
IN
NHN 00
Transcribed Image Text:S-Box Table s1 1e 12 S2 15 S3 13 13 1 1e 13 54 13 10 S6 S7 11 S8 13 1 15 13 1e 7. 11 2. 1 14 11 Straight Permutation Table 16 07 21 01 15 26 02 08 14 27 19 13 06 11 AN 00 2O27 iname inonm 00 munoo IN NHN 00
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