In a municipal wireless lab, what does the PMK represent relative to the WPA-Personal passphrase?
Select an answer to reveal the explanation.
Short Explanation
Picture the passphrase as the master mold and the PMK as the key blank poured from that mold for this SSID. From there the handshake shapes per-session keys. PMK sits above the session keys, not in the portal cookie jar.
Full Explanation
In WPA-Personal, passphrase and SSID context are used to derive the pairwise master key (PMK) material that anchors subsequent key hierarchy steps. The PMK is not the group transient key, not the AP’s BSSID label, and not an application-layer captive-portal artifact. Understanding PMK vocabulary helps explain why offline attacks target material tied to that PSK context. Session keys such as the PTK are derived later during the handshake.