CS549: Computer and Network Security

Pre-requisite: Computer Networks, Abstract Algebra
Syllabus:

• Security Concepts
• Overview, vulnerabilities, incidents
• Confidentiality, Integrity, Availability, Non-repudiation, Authentication, Authorization/Access Control
• Passive and Active Attacker, Interruption, Interception, Modification, Fabrication, Social Engineering
• Viruses, worms, Trojan horses, backdoors, unused services, RPC, Exploits (Buffer overflow, Port Scanning etc)
• Cryptography
• Classical Cryptography, Modern Cryptography
• Symmetric Cryptography, Public Key i.e. Asymmetric Cryptography
• Cryptographic Hash Functions
• Applications (Network Security and System Security)
• Key Exchange
• Password and remote authorization tools e.g. PGP, S/MIME, SSH, Netscape/SSL, SET
• IPsec, Kerberos, Firewalls, VPN, Wireless Network Security, etc,
• Intrusion Detection, System Security

Text Book:

• [Stallings17] William Stallings, “Cryptography and Network Security: Principles and Practice”, 7th Ed, Pearson Education, 2017.
• [Kahate19] Atul Kahate, “Cryptography and Network Security”, 4th Ed, McGraw Hill Education, 2019.

Reference Books & Resources:

• Debdeep Mukhopadhyay and Behrouz A Forouzan, “Cryptography & Network Security” 3rd Ed, McGraw Hill Education.
• William Stallings, “Network Security Essentials: Applications and Standards”, 6th Ed, Pearson Education, 2018.
• NPTEL Course: Cryptography and Network Security, by Prof. Debdeep Mukhopadhyay. URL: https://nptel.ac.in/courses/106105031

Instructors

• Dr. Manas Khatua

Teaching Assistants

• Soumya Nandan Mishra; Email: soumya_nandan@iitg.ac.in
• Karnish N. A. Tapadar; Email: karnish_nasrin@iitg.ac.in
• Aditya Sakre; Email: adity@iitg.ac.in
• Sanket Sonowal; Email: sanketsonowal@iitg.ac.in

Class Timing and Venue

• Slot: A1 in timetable
• Class Day & Time: Monday, Tuesday, Wednesday (2 PM - 2:55 PM)
• Venue: 5001, Class Room Complex
• Mode of Lecture: Live Class

Grading Strategy

• Two Short Quizzes: 20%
• Class Participation: 10%
• Assignments: 10%
• Mid-Sem Exam: 25% 20%
• End-Sem Exam: 35%
• Attendance: 0% 5%

Classes

Sl.No.	Lecture Date	Topics Taught in Class	Detailed Resources	Notes/PPT
1.	4-th Jan'23	Course Plan
2.	9-th Jan'23	Introduction
3.	10-th Jan'23	Computer and Network Security Concepts	[Stallings17] Chapter 1	PPT
4.	11-th Jan'23	Security Attacks, Security Services	[Stallings17] Chapter 1	PPT
5.	16-th Jan'23	Classical Cryptography - I	[Stallings17] Chapter 3	PPT
6.	17-th Jan'23	Classical Cryptography - II	[Stallings17] Chapter 3	PPT
7.	18-th Jan'23	Block Cipher, Feistel Cipher	[Stallings17] Chapter 4	PPT
8.	23-rd Jan'23	DES - I	[Kahate19] Chapter 2	Notes
9.	24-th Jan'23	DES - II	[Kahate19] Chapter 2	Notes
10.	25-th Jan'23	Block Cipher design principles, 3DES	[Kahate19] Chapter 2	Notes
11.	30-th Jan'23	Block Cipher Operation Modes	[Stallings17] Chapter 7	PPT
12.	31-st Jan'23	Random Bit Generation and Stream Cipher - I	[Stallings17] Chapter 8	Notes
13.	1-st Feb'23	Random Bit Generation and Stream Cipher - II	[Stallings17] Chapter 8	Notes
14.	6-th Feb'23	Public Key Cryptography	[Stallings17] Chapter 9	Notes
15.	7-th Feb'23	RSA - I	[Stallings17] Chapter 9	Notes
16.	8-th Feb'23	RSA - II	[Stallings17] Chapter 9	Notes
17.	13-th Feb'23	Diffie-Hellman Key Exchange, MITM Attack	[Stallings17] Chapter 10	PPT
18.	14-th Feb'23	Key Distribution, PKI, X.509 - I	[Stallings17] Chapter 14	PPT
19.	15-th Feb'23	Quiz-1
20.	20-th Feb'23	Key Distribution, PKI, X.509 - II	[Stallings17] Chapter 14	PPT
21.	21-st Feb'23	Cryptographic Hash Function - I	[Stallings17] Chapter 11	Notes
22.	13-th Mar'23	Cryptographic Hash Function - II	[Stallings17] Chapter 11	Notes
23.	14-th Mar'23	SHA-3 - I	[Stallings17] Chapter 11	Notes
24.	15-th Mar'23	SHA-3 - II	[Stallings17] Chapter 11	Notes
25.	20-th Mar'23	Message Authentication Code	[Stallings17] Chapter 12	Notes
26.	21-st Mar'23	HMAC	[Stallings17] Chapter 12	Notes
27.	22-nd Mar'23	Wireless Network Security - I	[Stallings17] Chapter 18	PPT
28.	27-th Mar'23	Wireless Network Security - II	[Stallings17] Chapter 18	PPT
29.	28-th Mar'23	Wireless Network Security - III	[Stallings17] Chapter 18	PPT
30.	29-th Mar'23	Network Access Control	[Stallings17] Chapter 16	PPT
31.	3-rd Apr'23	SSL	[Stallings17] Chapter 17	PPT
32.	5-th Apr'23	TLS - I	[Stallings17] Chapter 17	PPT
33.	10-th Apr'23	TLS - II	[Stallings17] Chapter 17	PPT
34.	11-th Apr'23	TLS - III	[Stallings17] Chapter 17	PPT
35.	12-th Apr'23	E-mail Security - I	[Stallings17] Chapter 19	PPT
36.	17-th Apr'23	E-mail Security - II	[Stallings17] Chapter 19	PPT
37.	18-th Apr'23	2nd Quiz	-	-
38.	19-th Apr'23	System Security, IDS - I	[Stallings17] Chapter 22	PPT
39.	24-th Apr'23	System Security, IDS - II	[Stallings17] Chapter 22	PPT
40.	25-th Apr'23	Firewalls - I	[Stallings17] Chapter 23	-
41.	26-th Apr'23	Firewalls - II	[Stallings17] Chapter 23	-
42.	2-nd May'23	3rd Quiz	-	-

Announcement

• [06/Feb] DES Group Assignment submsion deadline is 19-th February 2023 (Sunday).
• [06/Feb] First Quiz will be held on 15-th February 2023 (Wednesday).
  Syllabus: All topics covered in class.
• [13/Mar] Short Quiz1, Mid-Sem, and Class Participation Quiz1 Answer Keys are uploaded in MS Teams "Files" Folder.
• [12/Apr] Second Quiz will be held on 18-th April 2023 (Tuesday).
  Syllabus: All topics covered in class after Mid-Sem Exam.
• [19/Apr] Third Quiz will be held on 2-nd May 2023 (Tuesday).
  Syllabus: Email security, IDS, Firewalls.
• [13/Mar] Short Quiz2, Short Quiz3, Class Participation Quiz2 and End-Sem Answer Keys are uploaded in MS Teams "Files" Folder.