40 Mins

1. 802.11 Wi-Fi Frame Anatomy & Subtypes

802.11 MAC Frame Structure

Unlike Ethernet (802.3), 802.11 wireless frames are divided into three distinct types: Management Frames (Beacons, Probe Requests, Authentication, Deauth), Control Frames (RTS, CTS, ACK), and Data Frames.

Visual Architecture: WPA2/WPA3 4-Way EAPOL Handshake Key Exchange

1. AP sends ANonce to Supplicant
2. Supplicant derives PTK & sends SNonce + MIC
3. AP sends GTK + MIC
4. Supplicant sends ACK

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2. WPA2-Personal 4-Way Handshake & PMKID Security
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