DATABASE SYSTEM CONCEPTS LCPO
7th Edition
ISBN: 9781265586577
Author: SILBERSCHATZ
Publisher: MCG
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Chapter 11, Problem 12E
Explanation of Solution
Query
create table manager
(employee name char (20),
Manager name char (20),
primary key employee name,
foreign key (manager name) references manager
on delete cascade)
Explanation
- The tuples of all empl...
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How can I resolve the following issue?
I need help to resolve, thank you.
Let the user choose encryption or decryption.
For encryption, let user input the key in Hexadecimal number, the plain text in Hexadecimal number, output the ciphertext (in hexadecimal numbers).
For decryption, let user input the key in Hexadecimal number, the ciphertext (in hexadecimal numbers), output the decrypted message (Hexadecimal number).
Both encryption and decryption should output the different operation results for each round like the following:
For example:
Round 1:
E(R0) = ...... (Hex or Binary)
K1 = ……
E(Ro) xor K1 =
S-box outputs = ……
f(Ro1, K1) = …..
L2 =R1 =…….
La = Ra
Round 2:
.....•
No Encryption/Decryption libraries or functions provided by the third party are allowed.
Submit your program codes to Moodle with the notes of how to compile and run your program.
Chapter 11 Solutions
DATABASE SYSTEM CONCEPTS LCPO
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