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:
Dec. 02, 2025
Filed:
Oct. 23, 2018
Nokia Technologies Oy, Espoo, FI;
Anmin Fu, Shaanxi, CN;
Jingyu Feng, Shaanxi, CN;
NOKIA TECHNOLOGIES OY, Espoo, FI;
Abstract
Methods and apparatus are disclosed for attesting physical attacks. A method may comprise: receiving a heartbeat message from a neighbor device at a periodic interval, wherein the heartbeat message is encrypted with a session key of the neighbor device for a current interval, and comprises a key material for updating the session key of the neighbor device for a next interval; and decrypting the received first heartbeat message based at least part on a session key of the first device for the current interval; and determining whether the neighbor device is physically compromised at least based on the heartbeat message. The periodic interval is set to be smaller than a minimum time of a physical attack on the neighbor device.