公开(公告)号：US20230353382A1

公开(公告)日：2023-11-02

申请号：US17733700

申请日：2022-04-29

Applicant: NXP B.V.

Inventor： Jan Grießbach ,  Ahmad Al Houry ,  Markus Hinkelmann ,  Nicolas Harmen Lehment

IPC: H04L9/32

CPC classification number: H04L9/3247 ,  H04L9/3297 ,  H04L9/3263 ,  H04L9/3215

Abstract: Various implementations relate to controller in a system, including: a device connected to a network; and a secure sub-system connected to the device via a first wired connection, the secure sub-system configured to: establish a trusted channel with a user certificate authority (CA) via a provisioning device; receive application parameters from user CA; provision a timestamp or secure time server information based upon the timestamp or secure time server information received from the user CA; create a device identity for the device; and terminate the trusted channel after provisioning the timestamp or secure time server information and creating the device identity for the device.