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CRYPTOGRAPHY & NETWORK SECURITY [1]

Paper Code: 
25DCAI 701B
Credits: 
03
Periods/week: 
03
Max. Marks: 
100.00
Objective: 

Course Objectives:

The course will enable the students to understand network security & various encryption techniques.

 

Course Outcomes: 

Course

Learning outcome

(at course level)

Learning and teaching strategies

Assessment Strategies

Course Code

Course

title

 

25DCAI 701B

 

CRYPTOGRAPHY & NETWORK SECURITY

(Theory)

CO97. Elaborate network security services and mechanisms

CO98.Compare various cryptographic algorithms

CO99. Interpret message authentication and hash functions

CO100. Assess security at various layers.

CO101. Implement intrusion detection using firewall.

CO102. Contribute effectively in course-specific interaction

Approach in teaching:

Interactive Lectures, Discussion, PowerPoint Presentations, Informative videos

 

Learning activities for the students: 

Self-learning assignments, Effective questions, presentations.

 

 

 

Assessment tasks will include Class Test on the topics, Semester end examinations, Quiz, Student presentations and assignments.

 

9.00
Unit I: 

Information Security:                                                                                        Introduction, History of Information security, Components of Information System. Network Security: Services, Mechanism and Attacks, The OSI security Architecture, Model of Network Security.

 

9.00
Unit II: 

Cryptography: 

Concepts and Techniques, symmetric and asymmetric key cryptography, steganography, Symmetric key Ciphers: DES structure, DES Analysis, Security of DES, variants of DES, Block cipher modes of operation, AES structure, Analysis of AES, Key distribution Asymmetric key Ciphers: Principles of public key cryptosystems, RSA algorithm, Analysis of RSA, Diffie-Hellman Key exchange.

 

     

9.00
Unit III: 

Message Authentication and Hash Functions:

Authentication requirements and functions, MAC and Hash Functions, MAC Algorithms: Secure Hash Algorithm, Whirlpool, HMAC, Digital signatures, X.509, Kerberos. Digital Signatures-introductions and Algorithms for Digital signatures(DSA) and Digital Signature Standard(DSS).

9.00
Unit IV: 

Security at layers (Network, Transport, Application):                                          

IPSecurity-IPv4 & IPv6,IPsec Architecture and operations, web- Secure Socket Layer(SSL), Transport Layer Security(TLS), Secure Electronic Transaction(SET), Pretty Good Privacy(PGP), S/MIME.

9.00
Unit V: 

Firewall And Intrusion:

Computer Intrusions: Introduction, Intrusion Detection System and its types, Password Management, Limitations and Challenges. Malicious Software-Viruses, Worms, Trojan, spyware, Bots.

Firewall Introduction, Characteristics and types, Benefits and limitations. Firewall architecture, Trusted Systems, Access Control.

ESSENTIAL READINGS: 

Suggested Text Books:

  1. Bernard Menezes, “Network Security and Cryptography”, Cengage Learning India, 2014, ISBN-13  ‎ 978-8131513491.
  2. Nina Godbole, Sunit Belapure, “Cyber Security”, Wiley India, 2014, ISBN-13 No.:9788126521791.

 

REFERENCES: 

       Suggested Reference Books:

  1. Eoghan Casey, “Digital Evidence and Computer Crime Forensic Science, Computers and the Internet”, ELSEVIER, 2011, ISBN 978-0- 12-374268-1
  2. Atul Kahate, “Cryptography and Network Security”, Mc Graw Hill Publication, 2nd Edition, 2008, ISBN : 978-0-07-064823-4
  3. William Stallings, “Cryptography and network security principles and practices”, Pearson, 6th             Edition, ISBN : 978-93-325-1877-3
  4. Forouzan, “Cryptography and Network Security (SIE)”, Mc Graw Hill, ISBN, 007070208X, 9780070702080
  5. Dr. Nilakshi Jain-Digital Forensic: The Fascinating World of Digital Evidences-Wiley India-ISBN: 9788126565740

      Reference Journals:

  1. Journal of the Brazilian Computer Society, Springer Open
  2. Journal of Internet Services and Applications, Springer Open

     e-Resources including links

  1. https://www.tutorialspoint.com/cryptography/index.htm [2]
  2. https://mindmajix.com/cryptography-tutorial [3]
  3. https://www.gatevidyalay.com/tag/cryptography-and-network-security-tutorial/ [4]

 

Academic Year: 
2025-26 [5]

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Source URL: https://csit.iisuniv.ac.in/courses/subjects/cryptography-network-security-1

Links:
[1] https://csit.iisuniv.ac.in/courses/subjects/cryptography-network-security-1
[2] https://www.tutorialspoint.com/cryptography/index.htm
[3] https://mindmajix.com/cryptography-tutorial
[4] https://www.gatevidyalay.com/tag/cryptography-and-network-security-tutorial/
[5] https://csit.iisuniv.ac.in/academic-year/2025-26