IEEE 802.11-17/1776r1 Frame Protection Update
Explore the latest developments in frame protection for IEEE 802.11-17/1776r1, focusing on security keys derivation and negotiation for 11az Management Frame Protection. Learn about the safeguards against potential adversary attacks and the importance of pre-association security protocols in maintaining data security during data exchange and management frames. Stay informed about the motion passed regarding security measures in TGaz SFD.
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doc.: IEEE 802.11-17/1776r1 Frame Protection for 11az Date: 2017-10-16 Authors: Name Affiliations Address Phone email Nehru Bhandaru Broadcom Ltd. 190 Mathilda Place, Sunnyvale CA 94086 +1 408-922-5924 nehru.bhandaru@broadcom.com Submission 1
doc.: IEEE 802.11-17/1776r1 Introduction TGaz SFD 11-17/0462r9 The REVmc, HEz, and VHTz FTM modes, the fields over which range measurements are performed shall be protected against a VHT/HE Type B adversary attack 17/1737r0 Pre-association security negotiation Touches upon frame protection based on keys derived from negotiation Negotiation frames, Measurement Frames, Triggers, LMR (Feedback) Need some high level agreement on frame protection Submission 2
doc.: IEEE 802.11-17/1776r1 Strawpoll We agree that Security keys for 11az Management Frame Protection and LTF protection are derived based on security negotiation and never shared OTA (associated mode or pre-association security negotiation). LTF sequence is generated from some shared information and the derived LTF protection keys. Keys used for data exchange and 11az management protection may be different from keys used for LTF sequence protection PMF framework is used for FTM management frames, the key may either derived from associated or pre-associated security negotiation. Submission 3
doc.: IEEE 802.11-17/1776r1 Motion Passed from Wed Nov 8 17 PM2 Move to adopt the following text in the TGaz SFD under Section 6 Security - and grant the SFD editor editorial license: Security keys for 11az Management Frame Protection and range measurement field protection are derived based on security negotiation and never shared OTA (associated mode or pre-association security negotiation). Range measurement field sequence is generated from some shared information and derived from the range measurement field protection key(s). Keys used for data exchange and 11az management protection may be different from keys used for range measurement field protection. PMF framework is used for FTM Req, FTM and LMR management frames; the key may either be derived from associated or pre- associated security negotiation. Move: Nehru Bhandaru Second: Chitto Ghosh Results (Y/N/A): 9/0/0 Motion passes. Submission 4
doc.: IEEE 802.11-17/1776r1 Motion Move to adopt the following text in the TGaz SFD under Section 6 Security - and grant the SFD editor editorial license: Security keys for 11az Management Frame Protection and range measurement field protection are derived based on security negotiation and never shared OTA (associated mode or pre-association security negotiation). Note: The measurement field here refers to the HE LTF or VHT LTF in HEz or VHTz PPDUs. Range measurement field sequence is generated from some shared information and derived from the range measurement field protection key(s). Keys used for data exchange and 11az management protection may be different from keys used for range measurement field protection. PMF framework is used for FTM Req, FTM and LMR management frames; the key may either be derived from associated or pre- associated security negotiation. Move: Second: Results (Y/N/A): Submission 5
