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WPA2

"Agar tera Wi-Fi WPA2 se protected nahi hai, to samajh le tera digital darwaza khula pada hai."

Overview
🌟

WPA2 — Quick Facts

📌

Property: Detail

🎯

Full Name: Wi-Fi Protected Access 2

Short Name: WPA2

🔑

Type: Wireless Network Security Protocol

Topic 1
📥 📥 🧠 🔬 💡 🎯

Infobox

📚 | Property | Detail | |---|---| | Full Name | Wi-Fi Protected Access 2 | | Short Name |…
Topic 2
📥 ⚙️ 🔬 💡

Kya Hai WPA2

💡

Tumhara password verify karta hai…

🔑

Tumhara data encrypt karta hai…

Data me tampering detect karta hai…

🎯

Replay attacks rok-ta hai…

Topic 3
📥 📥 🧠 🔬 💡 🎯

History aur Background

💡

1997 — IEEE 802.11 standard…

🔑

2001 — WEP ki serious…

2003 — Wi-Fi Alliance ne WPA…

🎯

2004 — WPA2 release hua — IEEE…

Topic 4
📥 ⚙️ 🔬 💡

Architecture aur Core Components

💡

AES = Advanced Encryption Standard…

🔑

CCMP = Counter Mode with CBC-MAC…

Counter Mode (CTR) = data…

🎯

CBC-MAC = message integrity aur…

Topic 5

WPA2 Modes — Personal vs Enterprise

💡

User ek passphrase set karta hai…

🔑

System PBKDF2-SHA1 se passphrase +…

Problem: Dictionary attack…

🎯

Har user ka apna credential hota…

Topic 6
📥 ⚙️ 🔬 💡

4-Way Handshake Process

💡

PMK kabhi transmit nahi hota —…

🔑

Nonces ensure karte hain ke har…

MIC ensure karta hai ke messages…

🎯

PTK install hone ke baad sab…

Topic 7
🔒

Security Strengths

🌟 WPA2 ne kaafi strong security features diye: 1. AES-128 Encryption — Military-grade…
Topic 8
📥 📥 🧠 🔬 💡 🎯

Known Vulnerabilities

💡

Key Reinstallation Attack —…

🔑

4-Way Handshake ke Message 3 ko…

Nonce reuse hota hai jo AES-CCMP…

🎯

Fix: Firmware/software patches…

Topic 9

WEP vs WPA vs WPA2 — Comparison

📚 | Feature | WEP | WPA | WPA2 | |---|---|---|---| | Year | 1997 | 2003 | 2004 | |…
Topic 10
💡 📊 🔬

Best Practices aur Hardening

💡

Minimum 15 characters — mixed…

🔑

SSID name unique rakho (PBKDF2 me…

Password regularly rotate karo…

🎯

WPS (Wi-Fi Protected Setup)…

Topic 11
🔒

Real-World Deployment Scenarios

💡

WPA2-Personal (PSK) kaafi hai

🔑

Strong passphrase + WPS disabled +…

Guest network alag SSID par with…

🎯

WPA2-Personal chalega agar…

Topic 12

Interview Q&A

Q1: WPA2 aur WPA me kya fundamental difference hai? A: WPA me TKIP (RC4-based) encryption…
Topic 13
📥 📥 🧠 🔬 💡 🎯

Mermaid Diagram — 4-Way Handshake

🔑 `mermaid sequenceDiagram participant C as Client (Supplicant) participant AP as Access…
Topic 14

Glossary

| Term | Meaning | |---|---| | WPA2 | Wi-Fi Protected Access 2 — current dominant…
Comparison

WPA2 Modes — Personal vs Enterprise

⚖️

Authentication: Pre-Shared Key…

⚖️

PMK Derivation: PBKDF2 (passphrase +…

⚖️

User Management: Single shared password

Comparison

WEP vs WPA vs WPA2 — Comparison

⚖️

Year: 1997

⚖️

Encryption: RC4 (40/104-bit)

⚖️

IV Size: 24-bit

Diagram
📥 ⚙️ 🔬 💡

Visual Flow

📊 Diagram visualization — details in narration
Related Topics

See Also

📖

WPA3

🔗

AES

💡

Encryption

📚

Wi-Fi

🔑

IEEE 802.11

🌐

Network Security

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 1

WPA2 ka sabse sahi definition kya hai?

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 2

WPA2 ka 'Full Name' kya hai?

Complete! 🎉
COMPLETE

WPA2 Complete!

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WPA2 Complete

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WPA3

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