Information Security BS/MS Information Security 5/1 Semester/Term Islamia University Bhawalpur (IUB) 2024
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Paper text
23 B$(IT) 64
University of Sargodha
BS (5"" Intake) 1" Term Exam 2024
Paper: Information Security (CMPC-4542)
Subject: 1.1
Maximum Marks: 60
Time Allowed: 2:30 Hours
Note: Objective part is compulsory. Attempt any three questions from subjective part.
Objective Part
(Compulsory)
Q.1. Write short answers of the following in 2-3 lines of each on your answer sheet.
What is the difference between an attack surface and an attack tree?
What is a digital signature?
What are two common techniques used to protect a password file?
How does RBAC relate to DAC and MAC?
Explain the nature of the inference threat to an RDBMS.
What is a "logic bomb"?
What is a honeypot?
What is a circuit-level gateway?
Define an injection attack.
Define asset, control, threat, risk, and vulnerability.
What is digital rights management?
What is a one-way function?
(2*12)
Subjective Part
(3*12)
Q.2
Q,3.
Q.4.
Q.5.
Q.6.
Perform encryption-and decryption using the RA algorithm, for p= 11, 9 = 13, with key e = 11,
for message M=
7.
Write an algorithm for RC4.
The following PHP code is vutherable to an attack. Write the attack name and write a code for the
same purpose which is safer.
Sname = $_REQUEST['name'];
Squery = "SELECT * FROM suppliers WHERE name = '"' Sname. ''';
Sresult = mysql_query(Squery);
What is an SSL certificate? How does this certificate work?
What is the purpose of a HASH function? Discuss properties of a HASH function.
- LK-9016/05-07-24 -