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.

Date of Patent:
Jun. 25, 2024

Filed:

Mar. 26, 2020
Applicant:

Conti Temic Microelectronic Gmbh, Nuremberg, DE;

Inventors:

Wolfgang Schulter, Meersburg, DE;

Wolfgang Schrempp, Immenstaad, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04L 12/40 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3242 (2013.01); H04L 12/40 (2013.01); H04L 2012/40273 (2013.01); H04L 2209/84 (2013.01);
Abstract

Disclosed are an apparatus and a method for generating at least one data packet to be transmitted in a bus system of a motor vehicle, wherein before transmitting the at least one data packet comprising the message to be included in the data packet a bus subscriber transmitting the data packet uses a first encryption apparatus to generate a message authentication code that is likewise to be included in the data packet by using a first encryption method to generate an encrypted message code from the message with a first key, using a second encryption method to generate an encrypted count from a count by means of a second key, and using a logic operation to generate the message authentication code to be transmitted from the encrypted message code and from the encrypted count, and an apparatus and a method for authentication checking such data packets at the receiver.


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