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. 21, 2025
Filed:
Sep. 25, 2023
Fort Robotics, Inc., Philadelphia, PA (US);
Guang Wu, Philadelphia, PA (US);
Fort Robotics, Inc., Philadelphia, PA (US);
Abstract
A method includes, by a key server: identifying a group of devices; accessing secret values pre-provisioned to devices in the group of devices; accessing prime numbers pre-provisioned to devices in the group of devices; generating a cryptographic key for communication among the group of devices; generating a message based on the secret values, the prime numbers, and the cryptographic key; and transmitting the message to a device in the group of devices. The method also includes, by a first device in the group of devices: in response to receiving the message, deriving the cryptographic key from the message based on a first secret value, pre-provisioned to the first device, and a first prime number pre-provisioned to the first device; and associating the cryptographic key with communication among the group of devices.