公开(公告)号：US20160026787A1

公开(公告)日：2016-01-28

申请号：US14340726

申请日：2014-07-25

Applicant: GM Global Technology Operations LLC

Inventor： David M. Nairn ,  Thomas M. Forest ,  Padma Sundaram ,  Mohammed Abdulla Yousuf

IPC: G06F21/44 ,  G06F13/42

CPC classification number: G06F13/4282 ,  G06F21/64 ,  G06F21/85

Abstract: A system and method of transmitting data within a vehicle over a vehicle bus includes: constructing at an electronic control unit (ECU) a serial bus message that includes a data message and a message authentication code (MAC) that is created using a secret key stored at the ECU, a MAC algorithm, and the data message; transmitting the serial bus message to a receiving ECU over the vehicle bus; and authenticating the serial bus message at the receiving ECU using a copy of the secret key stored at the receiving ECU by creating a copy of the MAC from the data message included in the serial bus message, the copy of the secret key, and the MAC algorithm; comparing the MAC included in the serial bus message with the copy of the MAC created at the receiving ECU; and rejecting or accepting the data message based on the comparison.

Abstract translation: 一种在车辆车辆内部传输数据的系统和方法包括：在电子控制单元（ECU）处构建包括数据消息的串行总线消息和使用存储的秘密密钥创建的消息认证码（MAC） 在ECU处，MAC算法和数据消息; 通过车辆总线将串行总线消息发送到接收ECU; 以及使用存储在接收ECU处的秘密密钥的副本，在接收ECU处验证串行总线消息，通过从包括在串行总线消息中的数据消息，秘密密钥和MAC的副本创建MAC的副本 算法; 将串行总线消息中包括的MAC与在接收ECU处创建的MAC的副本进行比较; 并基于比较拒绝或接受数据消息。

公开(公告)号：US10211990B2

公开(公告)日：2019-02-19

申请号：US15215078

申请日：2016-07-20

Applicant: GM Global Technology Operations LLC

Inventor： David M. Nairn ,  Thomas M. Forest ,  Padma Sundaram ,  Mohammed Abdulla Yousuf

IPC: H04L9/32 ,  G06F13/42 ,  G06F21/64 ,  G06F21/85

Abstract: A method of transmitting data within a vehicle includes: storing two copies of a data message; constructing at an electronic control unit (ECU) a serial bus message that includes one copy of the data message and a message authentication code (MAC) created using a secret key stored at the ECU, a MAC algorithm, and a different copy of the data message; transmitting the serial bus message to a receiving ECU over a vehicle bus; authenticating the serial bus message at the receiving ECU using a copy of the key stored at the receiving ECU by creating a copy of the MAC from the data message included in the serial bus message and the copy of the key; comparing the MAC from the serial bus message with the copy of the MAC created at the receiving ECU; and rejecting or accepting the data message based on the comparison.

公开(公告)号：US20160330032A1

公开(公告)日：2016-11-10

申请号：US15215078

申请日：2016-07-20

Applicant: GM Global Technology Operations LLC

Inventor： David M. Naim ,  Thomas M. Forest ,  Padma Sundaram ,  Mohammed Abdulla Yousuf

IPC: H04L9/32 ,  G06F13/42

CPC classification number: H04L9/3242 ,  G06F13/4282 ,  G06F21/64 ,  G06F21/85 ,  H04L2209/84

Abstract: A method of transmitting data within a vehicle includes: storing two copies of a data message; constructing at an electronic control unit (ECU) a serial bus message that includes one copy of the data message and a message authentication code (MAC) created using a secret key stored at the ECU, a MAC algorithm, and a different copy of the data message; transmitting the serial bus message to a receiving ECU over a vehicle bus; authenticating the serial bus message at the receiving ECU using a copy of the key stored at the receiving ECU by creating a copy of the MAC from the data message included in the serial bus message and the copy of the key; comparing the MAC from the serial bus message with the copy of the MAC created at the receiving ECU; and rejecting or accepting the data message based on the comparison.

Abstract translation: 在车辆内发送数据的方法包括：存储数据消息的两个副本; 在电子控制单元（ECU）处构造包括数据消息的一个副本和使用存储在ECU中的秘密密钥创建的消息认证码（MAC）的串行总线消息，MAC算法和数据的不同副本 信息; 通过车辆总线将串行总线消息发送到接收ECU; 使用存储在接收ECU处的密钥的副本，在接收ECU处认证串行总线消息，通过从包括在串行总线消息中的数据消息和密钥的副本创建MAC的副本; 将来自串行总线消息的MAC与在接收ECU处创建的MAC的副本进行比较; 并基于比较拒绝或接受数据消息。