Samsung Electronics Co., Ltd.

Stephen E McLaughlin

Peng Ning

Ahmed M Azab

Rohan Bhutkar

Michael C Grace

Yong Choi

Xun Chen

Wenbo Shen

Ken Chen

Bulent Kasman

Baibhav Singh

Yueh-Hsun Lin

Sanjay Patil

Praveen Moongalam Thyagarajan

Vignesh Saravanaperumal

Hayawardh Vijayakumar

In one embodiment, a method includes accessing a request from a lower privileged process executing on a computing device to access a privileged firmware mode of the computing device and accessing a set of access policies for detecting whether the request is an unauthorized access to the privileged firmware mode. The method further includes determining, based on at least part of a content of the request and on the set of access policies, whether the request to access a privileged firmware mode is authorized; and denying or permitting, based on the determination, access by the lower privileged process to the privileged firmware mode.

Privileged firmware mode protection

A method includes enabling, by a tethering device that is tethered to a tethered device, a firewall to redirect network traffic from the tethered device to an authentication application executing on the tethering device. The method also includes receiving, by the tethering device from the tethered device, a user certificate of the tethered device during an authentication process. The method further includes verifying, by the tethering device, the user certificate of the tethered device using a certificate authority (CA) certificate of the tethered device that is installed on the tethering device. In addition, the method includes, in response to successful verification of the user certificate of the tethered device, disabling the firewall to allow the network traffic to and from the tethered device.

System and method for certificate based authentication for tethering

A connected device includes an application processor, a secure element, and a control module. The application processor is configured to receive a control command from an electronic device. The secure element is connected between the application processor and a control module and is configured to authenticate the control command. The control module is configured to receive the control command when the control command is authenticated by the secure element, execute the control command to activate at least one function of the connected device, and transmit a response to the electronic device.

Authorized control of an embedded system using end-to-end secure element communication

An apparatus and method of a hardware isolated secure element protecting a plurality of mission critical subsystems are provided. The method includes performing an actuation operation received across an unsecure path that modifies the state of a mission critical subsystem, performing a diagnostic operation received across the unsecure path that requests state information of the mission critical subsystem, storing information used to determine which of the diagnostic operation and the actuation operation received across the unsecure path are performed, and flashing an execution image of an electronic control unit when the execution image of the electronic control unit is received across the unsecure path.

Apparatus and method for protection of critical embedded system components via hardware-isolated secure element-based monitor

An apparatus and method of an attachment device for interfacing with an on-board diagnostic system of a vehicle is provided. The device includes an application processor configured to receive input from a terminal, control processing of the input by the on-board diagnostic system, transmit a result of the processing of the input by the on-board diagnostic system to the terminal, and a secure element interposed in the communication path between the application processor and the on-board diagnostic system, the secure element configured to filter the input of an on-board diagnostic operation that is untrusted.

Apparatus and method for transparent, secure element-based mediation of on-board diagnostic operations

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Mountain View, CA, United States of America

Stephen E McLaughlin