MAC (Medium Access Control) layer of WiFi includes several security protocols designed to ensure the confidentiality, integrity, and availability of wireless communications. These protocols are crucial in protecting the data transmitted over WiFi networks against unauthorized access and attacks. Here’s an overview of the main security protocols integrated at the MAC layer:

Security Protocols Integrated at the MAC Layer in WiFi

Security within WiFi networks is structured around several key protocols integrated into the MAC layer, addressing various security needs and vulnerabilities:

• Legacy (Now Mostly Deprecated):
  • Wired Equivalent Privacy (WEP): Once the standard, now deprecated due to significant security flaws and the ease with which it can be compromised.
• The Primary Security Standard:
  • Wi-Fi Protected Access 2 (WPA2): Currently the primary WiFi security protocol offering enhanced security over WEP.
    • WPA2-Personal (PSK): Uses a pre-shared key for home networks.
    • WPA2-Enterprise: Employs advanced authentication mechanisms suitable for enterprise environments.
• The Newest Standard:
  • Wi-Fi Protected Access 3 (WPA3): Introduces further enhancements to WiFi security for both personal and enterprise networks.
    • WPA3-Personal: Provides stronger encryption and enhanced protection against offline dictionary attacks.
    • WPA3-Enterprise: Features advanced encryption for highly sensitive environments.
• Important Considerations:
  • Based on the IEEE 802.11i security standard, focusing on authentication and encryption at the MAC layer.
  • Security efficacy also depends on protocols implemented at higher network layers.

Further Readings

• Security