The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 2026
Filed:
Mar. 15, 2024
Cisco Technology, Inc., San Jose, CA (US);
Ugo Campiglio, Ecublens, CH;
Domenico Ficara, Essertines-sur-Yverdon, CH;
Jerome Henry, Pittsboro, NC (US);
Amine Choukir, Ecublens, CH;
Javier Contreras, Barcelona, ES;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Devices, networks, systems, methods, and processes for rotating a Media Access Control (MAC) address of a device. A device can negotiate a periodicity for address rotation of the MAC address associated with the device. The device may receive a data frame and generate seed data based on the data frame. The device can also utilize a shared secret key, a cryptographic hash function, and/or a cryptographically secure pseudorandom number generator to generate the seed data. The device can determine timestamp data based on the periodicity or a time of reception of the data frame. The device may utilize a pseudorandom function to determine the MAC address based on the timestamp data and the seed data. The device can generate the MAC address after every rotation cycle. Upon waking up from a power saving mode, the device can synchronize with a network device to generate next MAC address.