🛡️ Information & Network Security
Exam Strategy
Goal: Quick retrieval. Use Cmd+K (or Ctrl+K) to search for keywords immediately.
Key Resources: Master Definitions Table | Formula Sheet
📅 Weekly Modules
Foundations
- Week 01 - Introduction to Information and Network Security
- Topics: CIA Triad, OWASP Risk Rating, Risk Treatment (Accept, Transfer, Mitigate).
- Week 02 - Network Programming and Security
- Topics: TCP Handshake, Secure vs. Standard Sockets, Client-Server code logic.
Cryptography (The Core)
- Week 03 - Introduction to Cryptography and Symmetric Ciphers
- Topics: Stream vs. Block, Perfect Secrecy, OTP, Hash vs. MAC, Modes of Operation (ECB/CBC).
- Week 06 - Public Key Cryptography
- Topics: RSA, Diffie-Hellman, Trapdoor Functions, Hybrid Encryption.
- Week 07 - PKI & Digital Signatures
- Topics: Certificate Authorities, Chain of Trust, Non-repudiation.
System & Web Security
- Week 04 - Human Factors, Passwords and Phishing
- Topics: Passwords, Phishing, Salting/Hashing.
- Week 05 - Web App Vulnerabilities and Attacks
- Topics: SQL Injection (SQLi), XSS, CSRF, Input Validation.
Network Defense & Protocols
- Week 08 - Security Protocols
- Topics: SSL/TLS Handshake, POODLE Attack, Kerberos.
- Week 09 - Network Security
- Topics: Firewalls (Packet filtering), IDS vs. IPS, DMZ Architecture.
📝 Practice & Mock Exams
- Mock Paper A – Focus: Web Vulnerabilities & Crypto Math
- Mock Paper B – Focus: Authentication Logic & PKI
- Mock Paper C – Interactive: Risk Assessment & RSA (Hidden Answers)
- Mock Paper D – Interactive: Fresh Scenarios & New Numbers (Hidden Answers)
- Mock Paper E - Interactive: Revision Quiz Based Test (Hidden Answers)
🧠 Quick Reference Tables
| Concept | vs. | Concept | Key Difference |
|---|---|---|---|
| Stream Cipher | vs | Block Cipher | Bit-by-bit (Fast) vs. Chunk-by-chunk (Storage). |
| Hash | vs | MAC | Integrity only vs. Integrity + Sender Auth. |
| Symmetric | vs | Asymmetric | Shared Key (Speed) vs. Public/Private Pair (Key Exchange). |
| IDS | vs | IPS | Passive Alerting vs. Active Blocking. |
Common Ports
- HTTP: 80
- HTTPS: 443
- SSH: 22
- DNS: 53