Authentication and security for ultra-high reliability (UHR) roaming

Abstract

This disclosure provides methods, components, devices and systems for authentication and security for ultra-high reliability (UHR) roaming. Some aspects more specifically relate to devices in a seamless mobility domain (SMD), such as access point (AP) multi-link devices (MLDs) and non-AP MLDs, supporting the generation of different temporal keys (TKs) for each AP MLD. For example, the non-AP MLD may establish, via authenticator associated with the SMD, a pairwise master key security association (PMKSA) and a single pairwise transient key security association (PTKSA). Thus, the non-AP MLD may communicate with a first AP MLD (such as of multiple AP MLDs associated with the SMD) in accordance with a first pairwise transient key (PTK) and, after roaming to a second AP MLD (such as of the multiple AP MLDs), may communicate with the second AP MLD in accordance with a second PTK, where the second TK is different than the first PTK.

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