JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives:

• Understand the basic concept of Cryptography and Network Security, their mathematical models
• To understand the necessity of network security, threats/vulnerabilities to networks and countermeasures
• To understand Authentication functions with Message Authentication Codes and Hash Functions.
• To provide familiarity in Intrusion detection and Firewall Design Principles

Course Outcomes

Upon completing this course, the student will be able to

• Describe network security fundamental concepts and principles
• Encrypt and decrypt messages using block ciphers and network security technology and protocols
• Analyze key agreement algorithms to identify their weaknesses
• Identify and assess different types of threats, malware, spyware, viruses, vulnerabilities

UNIT - I

Security Services, Mechanisms and Attacks, A Model for Internetwork security, Classical Techniques: Conventional Encryption model, Steganography, Classical Encryption Techniques. Modern Techniques: Simplified DES, Block Cipher Principles, Data Encryption standard, Strength of DES, Block Cipher Design Principles.

UNIT - II

Encryption: Triple DES, International Data Encryption algorithm, Blowfish, RC5, Characteristics of Advanced Symmetric block Ciphers. Placement of Encryption function, Traffic confidentiality, Key distribution, Random Number Generation.

UNIT - III

Public Key Cryptography: Principles, RSA Algorithm, Key Management, Diffie-Hellman Key exchange, Elliptic Curve Cryptograpy. Number Theory: Prime and Relatively prime numbers, Modular arithmetic, Fermat’s and Euler’s theorems, Testing for primality, Euclid’s Algorithm, the Chinese remainder theorem, Discrete logarithms.

R16 B.TECH ECM.

UNIT - IV

Message Authentication and Hash Functions: Authentication requirements and functions, Message Authentication, Hash functions, Security of Hash functions and MACs. Hash and Mac Algorithms: MD-5, Message digest Algorithm, Secure Hash Algorithm. Digital signatures and Authentication protocols: Digital signatures, Authentication Protocols, Digital signature standards. Authentication Applications: Kerberos, Electronic Mail Security: Pretty Good Privacy, SIME/MIME.

UNIT - V

IP Security: Overview, Architecture, Authentication, Encapsulating Security Payload, Key Management. Web Security: Web Security requirements, Secure sockets layer and Transport layer security, Secure Electronic Transaction. Intruders, Viruses and Worms: Intruders, Viruses and Related threats. Fire Walls: Fire wall Design Principles, Trusted systems.

TEXT BOOKS:

• 1. Cryptography and Network Security: Principles and Practice - William Stallings, Pearson Education.
• 2. Network Security: The complete reference, Robert Bragg, Mark Rhodes, TMH,2004.

REFERENCE BOOKS:

• 1. Network Security Essentials (Applications and Standards) by William Stallings Pearson Education.
• 2. Fundamentals of Network Security by Eric Maiwald (Dreamtech press)
• 3. Principles of Information Security, Whitman, Thomson.
• 4. Introduction to Cryptography, Buchmann, Springer. R16 B.TECH ECM.