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CRTP Notes → CRTP Notes

Linkedin : Hounnagudi Ganesh Gowda

X : NinjaTheOwl

Written and compiled by Hounnagudi Ganesh

Wi-Fi Basics

• SSID (Service Set Identifier): Name of the Wi-Fi network.
• BSSID (Basic Service Set Identifier): MAC address of the access point (AP).
• Frequency Bands:
  • 2.4 GHz: Wider range but slower speed.
  • 5 GHz: Shorter range but faster speed.
• Encryption Protocols: Protect data and control access.

Wi-Fi Security Types

1. WEP (Wired Equivalent Privacy):

   • Oldest and weakest encryption.
   • Uses RC4 algorithm with a short key (64-bit or 128-bit).
   • Vulnerable to attacks due to weak Initialization Vector (IV).

2. WPA-PSK (Wi-Fi Protected Access - Pre-Shared Key):

   • Replaced WEP, stronger security.
   • Uses TKIP (Temporary Key Integrity Protocol) or AES for encryption.
   • Vulnerable to password-based attacks.

3. WPA-Enterprise (MGT):

   • Designed for businesses.
   • Requires a RADIUS server for authentication.
   • Provides unique credentials for each user.

4. OPN (Open Networks):

   • No encryption or password.
   • Public networks (e.g., cafes, airports) often use this.
   • Highly insecure, exposing all user traffic.

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Practice Environment for Students

1. Virtual Machines:
   • Use Kali Linux.
   • Test in a lab with isolated routers.