公开(公告)号：US12164904B2

公开(公告)日：2024-12-10

申请号：US18160303

申请日：2023-01-26

Applicant: Renesas Electronics America Inc.

Inventor： Alberto Troia ,  Gentjan Qama ,  Syed Khurram Zaka Bukhari

IPC: H04L29/06 ,  G06F8/65 ,  G06F9/445 ,  G06F21/00 ,  H04L9/08 ,  H04L9/14 ,  H04L9/30

Abstract: A sensor system and an update server perform a method for updating the sensor system. The update server performs steps of retrieving a pre-shared sensor key associated with the sensor system, calculating a server signature based on update data and the retrieved sensor key, and transmitting the update data and the calculated server signature to the sensor system. On the other hand, the sensor system performs steps of receiving the update data and the calculated server signature, retrieving the pre-shared sensor key stored in a register, calculating a sensor system signature based on the update data and the pre-shared sensor key, comparing the sensor system signature with the server signature and processing the update data if the sensor system signature and the server signature are identical.

公开(公告)号：US11902419B2

公开(公告)日：2024-02-13

申请号：US17172173

申请日：2021-02-10

Applicant: Renesas Electronics America Inc.

Inventor： Alberto Troia ,  Serge Di Matteo

IPC: H04L9/06 ,  G06F11/10 ,  G06F13/42 ,  H04N7/18

CPC classification number: H04L9/0643 ,  G06F11/1004 ,  G06F13/4282 ,  H04L2209/12 ,  H04N7/183

Abstract: A data transmitter is disclosed. The data transmitter includes a digest generator configured in response to receiving a set of data from a data source to generate a digest from the set of data using a cryptographic primitive. The data transmitter further includes a packet generator configured to generate a series of one or more packets carrying the set of data for transmission, wherein each packet in the series includes a header, the set of data, a footer and the digest.