Lec 33 || Access Controls ~ Steps, Types - DAC, MAC, RBAC | Security in Networks | Information Sec.

CONTENTS Unit-1 Introduction to Information Security: Attacks, Vulnerability, Security Goals, Security Services and mechanisms. Conventional substitution and transposition ciphers, One-time Pad, Block cipher and Stream Cipher, Steganography. Classical Encryption Techniques. Unit 2 Symmetric and Asymmetric Cryptographic Techniques: DES, AES, RSA algorithms. Hash Functions Message Authentication & Hash Functions: Authentication Requirements, Authentication Functions, Message Authentication Codes, Hash Functions, Birthday Attacks, Security Of Hash Function & MACS, MD5 Message Digest Algorithm, Secure Hash Algorithm (SHA), Digital Signatures: Digital Signatures, Authentication Protocol, Digital Signature Standard (DSS), Proof Of Digital Signature Algorithm. Unit 3 Program Security: Nonmalicious Program errors - Buffer overflow, Incomplete mediation. Time-of-check to Time-of- use Errors, Viruses, Trapdoors, Salami attack, Man-in-the- middle attacks, Covert channels. Unit 4 Security in Networks: Threats in networks, Network Security Controls - Architecture. Encryption, Content Integrity, Strong Authentication, Access Controls, Wireless Security, Honeypots, Traffic flow security, Firewalls - Design and Types of Firewalls, Personal Firewalls, IDS, Email Security - PGP,S/MIME Unit 5 Administering Security: Security Planning, Risk Analysis, Organizational Security policies. Security Legal Privacy and Ethical Issues in Computer Security: Protecting Programs and data, Information and the law, Rights of Employees and Employers, Software failures, Computer Crime, Ethical issues in Computer Security, case studies of Ethics.