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[STDS-802-11-TGM] Resolution to CID 226



--- This message came from the IEEE 802.11 Task Group M Technical Reflector ---
After the last discussion on document 11-17/1089r6, I took an action to post the resolution to CID 226 to the TGm reflector. The details of the comment and previous discussion can be found in the above document. (Note that the formatting below did not translate exactly from the document to this email).

My proposed resolution is:

Revised. Replace

“The TDLS responder STA shall process message 3 as follows:

If the Source and Destination Addresses of the Link Identifier element do not match those for an

outstanding TDLS Setup Request, the TDLS responder STA shall discard the message.

 

If the ANonce and SNonce fields of the FTE do not match that of an outstanding request to the

TDLS initiator STA, then the TDLS responder STA shall discard the message.

 

Otherwise, the TDLS responder STA shall validate the MIC in the FTE as specified in the MIC

calculation procedure for TPK handshake message 3. If invalid, the TDLS responder STA shall

discard the message.

 

The TDLS responder STA shall discard the message, the TDLS responder STA shall abandon the

TPK handshake identified by the <ANonce, SNonce> combination, and delete existing TPK

handshake key state for this sequence if any of the following checks fail:

The contents of the RSNE are not the same as that sent by the TDLS responder STA in

message 2

The Timeout Interval element is not the same as that sent in message 2

The BSSID from the Link Identifier element is not the same as that sent in message 2”

 

With:

 

“The TDLS responder STA shall process message 3 as follows:

 

-       Confirm that the Source and Destination Addresses of the Link Identifier element match those for an

outstanding TDLS Setup Request;

-       Confirm that the ANonce and SNonce fields of the FTE match that of an outstanding request to the

TDLS initiator STA;

-       Validate the MIC in the FTE as specified in the MIC calculation procedure for TPK handshake message 3;

           

            If any of the above conditions are not met, the TDLS responder STA shall discard the message. If the above conditions are           met, the TDLS responder STA shall:

-       Validate that the contents of the RSNE received in message 3 are the same as the RSNE sent by the TDLS responder STA in message 2;

           

-       Confirm that the Timeout Interval element is the same as that sent in message 2;

           

-       Confirm that the BSSID from the Link Identifier element is the same as that sent in message 2.

 

If any one of the above conditions are not met, the TDLS responder STA shall discard the message and abandon the TPK handshake identified by the <ANonce, SNonce> combination, and delete existing TPK handshake key state for this sequence.”    

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