Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Bradley Warren Smith
Jacob David Nelson
Xin Ye
Venkata Kishore Kajuluri
Date of Patent
October 17, 2023
Patent Application Number
17203775
Date Filed
March 17, 2021
Patent Citations
Patent Primary Examiner
CPC Code
Patent abstract
An onboard communication network of a vehicle is monitored to detect a plurality of available messages that include respective cipher-based message authentication codes (CMAC) and that were identified as eligible messages based on having an information entropy greater than a specified threshold. A first message is selected from the plurality of available messages. The CMAC of the selected message is input into a random number generator that outputs a random number seeded by the CMAC of the selected message. Then the random number is provided.
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