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:
Sep. 03, 2019
Filed:
Dec. 09, 2016
Robert Bosch Gmbh, Stuttgart, DE;
Christopher Huth, Leonberg, DE;
Paulius Duplys, Markgroeningen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method for transmitting software in which a checker generates two random numbers. The checker calculates a cryptographic key based on the second random number based on a measured hardware function of the device. The checker encrypts the software into a cryptogram using the key, and transmits the cryptogram to the device. The checker transmits the first random number to the device, and receives a checksum from the device. The checker calculates a reference value based on the first random number and an emulated random access memory of the device, with the aid of the measured hardware function and a predefined cryptographic hash function. The checker subjects the checksum to a check based on the reference value, and if the check is successful, the checker transmits the second random number to the device.