Handling mismatch of cryptographic keys and related battery drain and communication exchange failures

摘要

A wireless communications device stores a first cryptographic key in connection with a profile, the profile indicating a security type requiring no credentials and a network name. An access point (AP) supports a wireless local area network (WLAN), the WLAN having the network name, the WLAN supporting the security type and the WLAN requiring a second cryptographic key for encryption. The wireless communications device successfully authenticates and associates with the AP, thus joining the WLAN. Subsequent to joining the WLAN, the wireless communications device conducts encrypted communications with the AP and detects from the encrypted communications that there is a mismatch between the first cryptographic key and the second cryptographic key. Responsive to detecting the mismatch, the wireless communications device bans the profile or the AP or both.

主权项

1. A method to be performed in a wireless communications device, the method comprising:
storing a first cryptographic key at the wireless communications device in connection with a profile, the profile indicating a security type requiring no credentials and a network name; successfully authenticating and associating with an access point (AP), thus joining a wireless local area network (WLAN) supported by the AP, the WLAN having the network name, the WLAN supporting the security type, and the WLAN requiring a second cryptographic key for encryption; subsequent to joining the WLAN, conducting encrypted communications with the AP; detecting from the encrypted communications that there is a mismatch between the first cryptographic key and the second cryptographic key; and responsive to detecting the mismatch, banning the profile.