WiFi Security

With ComProbe 802.11, the WiFi decryption is not done in the datasource. It is done in the decoders, so you must go to Set Initial Decoder Parameters to provide the security information to the decoder.

From the Control window, select Set Initial Decoder Parameters... from the Options menu.

 

In the Set Initial Decoder Parameters dialog, select the Security tab. In the tab pane, select the encryption method being using with your device under test (DUT) by clicking on the radio button in the Encrypted Data box.

 

There are three types of types of encrypted data on the security tab, each one selectable via a radio button.

 

WiFi Encrypted Data Options
Option Description
WPA2 WPA2 (Wi-Fi Protected Access), and WEP (Wired Equivalent Privacy) data that is transmitted over a 802.11 communications link.  There are two values you have to enter for the WPA2 and WEP to be decrypted properly.
Bluetooth AMP The Bluetooth  alternative MAC/PHY (AMP) enables Bluetooth to support data rates up to 24 Mbps by using additional wireless radio technologies.
Pre-shared Key The pre-shared key is a 32-byte hex number.

Within the Set Initial Decoder Parameters... dialog Security tab, the fields available will depend on the Encrypted Data option selected.

WiFi 802.11 AMP Capture Method

Note: When capturing both Bluetooth and 802.11 data using the 802.11AMP capture method, the ComProbe software uses the link from the BR/EDR connection.  To automatically decode 802.11 AMP frames in this case, select the Bluetooth AMP Encrypted Data, but leave the Link Key field blank.

 

WiFi Encrypted Data Option Fields
Encrypted Data Option Field Description
WPA2 WPA2: SSID The station ID of the 802.11 communications link.
WEP: SSID The station ID of the 802.11 communications link.
WEP: Passkey The shared passkey phrase used in communications.
Bluetooth AMP BDR/EDR Link Key Enter a hexadecimal value for the BR/EDR Link Key.
WEP: SSID The station ID of the 802.11 communications link.
WEP: Passkey The shared passkey phrase used in communications.
Pre-Shared Key Raw Hex Key Enter a 32-byte hex number
WEP: SSID The station ID of the 802.11 communications link.
WEP: Passkey The shared passkey phrase used in communications.

Enter the required security data in to the active fields for the selected Encrypted Data option. Click the OK button to set the decoder security parameters.

Wi-Fi security settings are also presented in detail in the Decoder Parameters section (See "Wi-Fi Security Decoder Parameters").

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