Patent · US Active

Method for the protected transmission of data

US9602487B2 · kind B2 · utility

0Cited by

5References

18Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Bjoern Kasper · Bietigheim-Bissingen, DE
Andreas Soenkens · Kornwestheim, DE
Thorsten Schwepp · Bad Marienberg, DE

Key dates

Filing date	Sep 10, 2014
Grant date	Mar 21, 2017
Priority date	—
Expiry date	Dec 5, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH04W56/0015
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method for authenticating a transmitter to a receiver, as well as for the protected transmission of messages; both the transmitter, as well as the receiver at least having a first common key; a random number, as well as at least one first partial code of a first code calculated from the random number with the aid of the first key from the receiver to the transmitter being transmitted in a synchronization message; the first partial code being checked by the transmitter; a first counter being generated by the transmitter; useful data, as well as a first partial counter of first counter and at least one second partial code of a second code calculated with the aid of a second key being transmitted by the transmitter to the receiver in a message; and the receiver checking the second partial code to verify the transmitter, as well as the transmitted message.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.