Patent ID: 11902775
Assignee: CISCO TECHNOLOGY, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. An apparatus comprising:
a network interface configured to enable network communications;
one or more processors; and
one or more memories storing instructions that when executed configure the one or more processors to perform operations comprising:
establishing a secure communication channel with a wireless client device;
receiving, via the secure communication channel, a decryption key and a first nonce value from the wireless client device;
receiving a first network message indicating a first source address;
in response to determining that the first source address is not present in data for known source addresses in the one or more memories, searching the one or more memories for data associated with devices for which address rotation is impending;
identifying the decryption key and the first nonce value associated with the wireless client device in the data associated with devices for which address rotation is impending based on the searching;
decrypting, using the decryption key, an encrypted value derived from the first source address to obtain a decrypted value;
comparing the decrypted value to the first nonce value; and
determining the first network message originated from the wireless client device based on the comparing.