Network Security

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Course Contents

Unit-1: Security in Computing Environment: Need for Security, Security Attack, Security Services, Information Security, Methods of Protection.

Unit-2: Basics of Cryptography: Terminologies used in Cryptography, Substitution Techniques, Transposition Techniques.   

Unit-3: Encryption and Decryption: Characteristics of Good Encryption Technique, Properties of Trustworthy Encryption Systems, Types of Encryption Systems, Confusion and Diffusion, Cryptanalysis.

Unit-4: Symmetric Key Encryption: Data Encryption Standard (DES) Algorithm, Double and Triple DES, Security of the DES, Advanced Encryption Standard (AES) Algorithm, DES and AES Comparison.

Unit-5: Public Key Encryption: Characteristics of Public Key System, RSA Technique, Key Exchange, Diffie-Hellman Scheme, Cryptographic Hash Functions, Digital Signature, Certificates, Certificate Authorities.

Unit-6: Protection of Computing Resources: Secure Programs, Non-malicious Program Errors, Viruses and Other Malicious Code, Targeted Malicious Code, Methods of Control.

Unit-7: Security Features in Operating System: Objects to be Protected, Protection Methods of Operating Systems, Memory Protection, File Protection, User Authentication.

Unit-8: Designing Trusted Operating Systems: Types of Security Policies, Models of Security, Design of OS.

Unit-9: Network Security: Network Concepts, Threats in Networks, Network Security Controls.

Unit-10: IP Security: Overview of IP Security (IPSec), IP Security Architecture, Modes of Operation, Security Associations (SA), Authentication Header (AH), Encapsulating Security Payload (ESP), Internet Key Exchange.

Unit-11: Web Security: Web Security Requirements, Secure Socket Layer (SSL), Transport Layer Security (TLS), Secure Electronic Transaction (SET).

Unit-12: Electronic Mail Security: Threats to E-Mail, Requirements and Solutions, Encryption for Secure E-Mail, Secure E-Mail System.

Unit-13: Firewalls: Firewalls – Types, Comparison of Firewall Types, Firewall Configurations.     

Unit-14: Planning and Enforcing Security Policies: Planning Security Policies, Risk Analysis, Security Policies for an Organization, External Security.

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