Intel Corporation

Ilan Peer

Po-Kai Huang

Johannes Berg

Emily H Qi

Ido Ouzieli

The application relates to a 4-way handshake optimization. An initiating entity includes processor circuitry configured to: transmit a first open authentication frame to a responding entity via a wireless interface, wherein the first open authentication frame comprises information that helps the responding entity to identify a Pairwise Master Key (PMK) and a first random number; receive a second open authentication frame from the responding entity, wherein the second open authentication frame comprises a second random number; transmit an association request frame to the responding entity via the wireless interface, wherein the association request frame is encrypted with at least part of a Pairwise Transient Key (PTK) derived by the initiating entity from the PMK; and receive an association response frame from the responding entity, wherein the association response frame is encrypted with at least part of the PTK derived by the responding entity from the PMK.

4-way handshake optimization

The disclosure provides a method for resisting downgrade attack for private limited connection, comprising: performing a 4-way handshake between an initiating entity and a responding entity to establish a PMKSA; receiving, by the initiating entity, a frame from the responding entity during the 4-way handshake, wherein the frame comprises an indication of usage of private limited connection for all responding entities in a network identified by a SSID of the responding entity; and establishing, by the initiating entity, a private limited connection in the network identified by the SSID of the responding entity.

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Modiin, Israel

Ilan Peer