BSc IT Internet Security Notes Mumbai

Below are the list of topics included in the notes:

Sec tion Topic Page No. Revision of a part of “Data Communication and Networking” syllabus prerequisite for “Internet Security.” 0.1 Three way handshake 2 0.2 Understanding O.S.I. Model at a glance 5 0.3 Differentiate between O.S.I. Protocol suite & T.C.P./I.P. Protocol suite. 6 0.4 Attacks with reference to the OSI model 7 0.5 Node-to-Node, Host-to-Host and Process-to-Process deliveries? 9 0.6 Understanding SSL Layer 10 Position of SSL layer in TCP/IP suit 0.7 TCP Header 11 0.8 What is connection oriented and what is connectionless? 13 0.9 TCP v/s UTP 15 0.1 16 0.11 17 Introduction: 20 1 What are Security Truisms? 21 1.1 Why require a security? 22 1.2 What is a Security Policy 24 1.3 What is a Security Policy - Definition 25 1.4 Picking a Security Policy,

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1.5	What kind of Security	28
1.6	Distinguish between a Hacker and a cracker	29
1.7	Strategies for a Secure Network,	30
1.8	The Ethics of Computer Security	32
1.9	Security threats and levels	33
1.1	Security Plan (RFC 2196)	34
1.11	What Makes a Good Security Policy?	36
1.12	The components of a good security policy	36
1.13	Deny all/ Allow all	39
1.14	Who Should be Involved When Forming Policy?	40
1.15	Security Incident Handling	41
1.16	Security breach incident: - Containment	45
1.17	Security breach incident: - Eradication	46
1.18	Security Approaches	47
1.19	Principles of Security	48
1.2	Types of attack - Active and passive	49
1.21	The Practical Side of Attacks	51
1.22	Cookies	52
1.23	Specific Attacks: - Sniffing (snooping) Spoofing	53
1.24	Chapter Summery:	55

2	Classes of Attack	60
2.1	Stealing Passwords	61
2.2	Social Engineering.	63
2.3	Bugs and Backdoors	65
2.4	Authentication Failures	67
2.5	Protocol Failures	69
2.6	Information Leakages	70
2.7	Exponential Attacks - Viruses and Worms	71
2.8	Denial-of-Service Attacks	72
2.9	Botnets.	74
2.1	Active Attacks	77
3	Computer Security	85
3.1	What are viruses, Trojan Horse, Worms	86
3.2	Types of Virus	88
3.3	How to protect the computer against virus?	91
3.4	Life stages of Virus	95
3.5	What is the Structure of Viruses?	97
3.6	Components of virus	100
4	Firewalls and Proxy Servers	106

4.1	Kinds of Firewalls						108
4.2	Packet filters						109
4.3	Application-Level Filtering						110
4.4	Circuit-Level Gateways						112
4.5	Dynamic Packet Filters						113
4.6	Distributed Firewalls.						114
4.7	What firewalls cannot Do & Filtering Services						116
4.8	Reasonable Services to Filter						117
4.9	Digging for Worms.						119
4.1	Packet Filtering.						121
4.11	Implementing policies: (Default allow, Default Deny) on proxy						123
5	Cryptography						130
5.1	Introduction to Basic encryption and Decryption,						131
5.2	Diffie – Hellman Key Exchange						138
5.3	Concept of Public key and Private key						140
5.4	The concept of Hash (Message Digest)						143
5.4	Digital Signatures						146
5.5	Symmetric Key Cryptography						150
5.6	Asymmetric Key cryptography						152
5.7	Compare & contrast Symmetric Key Cryptography with Asymmetric key cryptography						154

5.8	Pretty Good Privacy (PGP)						156
6	University Exam Paper for previous 5 years
7	Question Bank
8	Model Answers of selected and grouped questions
9	A set of 3 question papers for your Mock test and own assessment

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TYBSC IT Sem 5 Question Papers - Mumbai University