CCMP headers Key ID now equivalent to Key Value used in encryption

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CCMP headers Key ID now equivalent to Key Value used in encryption

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CCMP headers Key ID now equivalent to Key Value used in encryption
CCMP headers Key ID now equivalent to Key Value used in encryption
2023-05-26 07:17:50
Tags: #MAC Layer
Model: Archer AXE75  
Hardware Version: V1
Firmware Version: 1.1.6 Build 20221208 rel.72102(5553)

Using the above mentioned AP, with Wireless Security Set to WPA2-PSK, and Group Key Handshake Interval set to 30s (Used for Stress Testing), We have distinguished the below:

 

Test Environment:

  • Two Linux Ends (Station1 and Station 2) are connected to the AP
  • ARPing Utility is used to trigger group frames 

 

The AP Perform:

  1. GKHS with GTK Key ID 2 and Key of Value 2
  2. Send ARP Group DA Frames continuously from Station 1 to Station 2
  3. New GKHS with GTK Key ID1 and new Key of Value 1
  4. Keep Sending Group DA Frames from Station 1 to Station 2 over the AP
  5. CCMP Failure occurs where on wireshark we can observe that a frame is sent using Key ID 2 (Old Key ID) with the New Key Value  (Key of Value 1)

 

 

 

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