US 10,382,419 B2Granted

Communication device, LSI, program, and communication system

AssigneeRenesas Electronics Corporation

InventorDaisuke Oshida

Life of this patent

Estimating the term…

Loading patent…

Abstract

An object of the present invention is to prevent an attack from or via a communication device on an information apparatus in a communication system including the information apparatus, the communication device coupled to the information apparatus in the aftermarket, a server that authenticates the communication device, and a communication unit between the communication device and the server. A communication device includes a first interface that performs first communications with a server, a second interface that performs second communications with an information apparatus, and an information processing unit that performs an information process including a communication protocol process accompanied by the first and second communications. The information processing unit of the communication device sends a signature of the communication device from the first interface to the server, receives via the first interface a driver sent after the server authenticates the communication device on the basis of the received signature, and sends the received driver from the second interface to the information apparatus.

Claims20

Dependent claims

A communication device comprising:

a first interface that performs first communications with a server,
a second interface that performs second communications with an information apparatus, and
an information processing unit that performs an information process including a communication protocol process accompanied by the first and second communications,
wherein a first driver for transmitting data is installed in the information apparatus to communicate with the communication device,
wherein the communication device performs secure boot,
wherein the communication device sends a signature of the communication device and a result of the secure boot from the first interface to the server, and receives via the first interface a second driver sent from the server after the server authenticates that the communication device is a secure device on the basis of the signature and the result of the secure boot, the second driver being different from the first driver,
wherein the communication device sends the received second driver as data from the second interface to the information apparatus via the first driver,
wherein the second driver is software that is installed in the information apparatus to allow the information apparatus to cooperate with the communication device,
wherein the communication device sends control, commands, or instruction to the information apparatus via the second driver, and
wherein the information apparatus is operated on the basis of the control, commands, or instructions from the communication device.

7 more elements

A communication device comprising:

a first interface that performs first communications with a server,
a second interface that performs second communications with an information apparatus, and
an information processing unit that performs an information process including a communication protocol process accompanied by the first and second communications,
wherein a first driver for transmitting data is installed in the information apparatus to communicate with the communication device,
wherein the communication device performs secure boot,
wherein the communication device sends a signature of the communication device and a result of the secure boot from the second interface to the information apparatus, and sends the signature and a result of the secure boot from the information apparatus to the server through third communications between the information apparatus and the server,
wherein a second driver, as data sent from the server after the server authenticates that the communication device is a secure device on the basis of the signature and the result of the secure boot, is sent to the information apparatus through the first communication and the second communications via the first driver, or the third communications, the second driver being different from the first driver,
wherein the second driver is software that is installed in the information apparatus to allow the information apparatus to cooperate with the communication device,
wherein the communication device sends control, commands, or instruction to the information apparatus via the second driver, and
wherein the information apparatus is operated on the basis of the control, commands, or instructions from the communication device.

7 more elements

A communication system comprising:

an information apparatus,
a communication device coupled to the information apparatus,
a server, and
a communication unit between the communication device and the server,
wherein a first driver for transmitting data is installed in the information apparatus to communicate with the communication device,
wherein the communication device performs secure boot,
wherein the server holds a second driver that is installed in the information apparatus to allow the information apparatus to cooperate with the communication device, the second driver being different from the first driver,
wherein the communication device transmits a signature of the communication device and a result of the secure boot to the server when being coupled to the information apparatus,
wherein when it is determined that the communication device is an authorized communication device as a result of verification of the signature and the result of the secure boot, the server transmits the second driver to the information apparatus, and the information apparatus installs the received second driver,
wherein the communication device sends control, commands, or instruction to the information apparatus via the second driver, and
wherein the information apparatus is operated on the basis of control, commands, or instructions from the communication device.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/933,195Filed 5 Nov 2015
Priority: JP 2015-01287627 Jan 2015
Published: US 2016/0219029 A128 Jul 2016
Granted: 13 Aug 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification19 codes

H04L 63/08
Network architectures or network communication protocols for network security: for authentication of entities
H04L 9/3247
Including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity…:…
H04L 9/3263
Including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity…:…
H04L 63/0428
For providing a confidential data exchange among entities communicating through data packet networks: wherein the data content is protected, e.g.…