[wpa_supplicant] Add support for anonymous@<realm>
SIM based EAP authentication with IMSI encryption requires a special EAP
Identity response: anonymous@realm. Then the server sends AKA-Identity
request which is answered with the encrypted IMSI. Add logic that
indicates if the special anonymous identity is used. Otherwise, this
field is used for storing the pseudonym.
Test: Connect to Carrier Wi-Fi, verify correct behavior from captures
Test: Connect to non IMSI encrypted EAP-AKA AP, verify pseudonym usage
Bug: 133431451
Change-Id: Ifb7fdde0bed8e066037bc71184426fe689295a77
2 files changed