Wireless communication apparatus and processing method thereby

• US 9,871,894 B2
• Filed: 07/28/2014
• Issued: 01/16/2018
• Est. Priority Date: 03/17/2008
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Goto, Fumihide
• Primary Examiner(s): Rashid, Harunur
• Application Number:
  US14/444,743
• Publication Number:
  US 20140334343A1
• Time in Patent Office: 1,268 Days
• Field of Search: 709217, 709218, 709219, 709238, 709226, 709230
• CPC Class Codes: H04L 63/061 for key exchange, e.g. in peer-to-peer networks cryptographic mechanisms or cryptographic arrangements for key agreement H04L9/0838
• CPC Class Codes: H04L 63/065 for group communications cryptographic mechanisms or cryptographic arrangements for key management involving conference or group key H04L9/0833
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 69/24 Negotiation of communication capabilities
• CPC Class Codes: H04W 12/04 Key management, e.g. using generic bootstrapping architecture [GBA]
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 12/50 Secure pairing of devices
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: H04W 84/20 Master-slave selection or change arrangements

Abstract

When a wireless network is constructed, a wireless communication apparatus in the wireless network constructed of a plurality of communication apparatuses decides whether to function as a providing source of communication parameters or as a provision destination that receives communication parameters. In a case where it has been decided that this apparatus is to function as the provision destination that receives communication parameters, the apparatus requests authentication when it participates in the wireless network using communication parameters. In a case where it has been decided that this apparatus is to function as the providing source of communication parameters, the apparatus execute authentication processing in response to an authentication request.

Claims

1. A communication apparatus, comprising:

a processor coupled to a memory;

a decision unit configured to decide, from among the communication apparatus and a first another communication apparatus that forms a wireless network with the communication apparatus, whether to operate as a providing apparatus for providing a communication parameter to a receiving apparatus or as a receiving apparatus for receiving a communication parameter from a providing apparatus;

a providing unit configured to provide, in a case where it is decided by the decision unit that the communication apparatus operates as a providing apparatus, a communication parameter which includes at least one of a network identifier, an encryption key, an authentication scheme or a frequency channel to the first another communication apparatus; and

an establishing unit configured to establish the wireless network, compliant with IEEE 802.11 standard series, with the first another communication apparatus by using the communication parameter provided by the providing unit;

a transmitting unit configured to transmit, after the establishing unit has established the wireless network compliant with IEEE 802.11 standard series with the first another communication apparatus, information indicating the first another communication apparatus that has been provided with the communication parameter by the providing unit to a second another communication apparatus different from the communication apparatus and the first another communication apparatus, wherein the second another communication apparatus is an apparatus that participates in the wireless network,

wherein the communication apparatus further operates as an authenticating apparatus for an authentication process performed with a receiving apparatus in a case where it is decided by the decision unit that the communication apparatus operates as a providing apparatus, and wherein the communication apparatus further operates as an authenticated apparatus for an authentication process performed with a providing apparatus in a case where it is decided by the decision unit that the communication apparatus operates as a receiving apparatus, and

wherein of the decision unit, the providing unit, the establishing unit, and the transmitting unit are implemented by the processor.

2. The apparatus according to claim 1, further comprising a receiving unit configured to receive, in a case where it is decided by the decision unit that the communication apparatus operates as a receiving apparatus, a communication parameter from a providing apparatus.

3. The apparatus according to claim 1, wherein the transmitting unit transmits the information in a case where the communication apparatus provides a communication parameter to the second another communication apparatus.

4. The apparatus according to claim 1, wherein the communication parameter is a parameter for connecting to the wireless network.

5. The apparatus according to claim 1, wherein the decision unit performs the decision by communication in the wireless network compliant with IEEE 802.11 standard series.

6. The apparatus according to claim 1, wherein the transmitting unit transmits the information in accordance with a request transmitted from the second another communication apparatus.

7. The apparatus according to claim 1, wherein the second another communication apparatus participates in the wireless network using the communication parameter received from the communication apparatus.

8. The apparatus according to claim 1, wherein the wireless network is a network based on an ad-hoc mode.

9. A control method of a communication apparatus, comprising:

deciding, from among the communication apparatus and a first another communication apparatus that forms a wireless network with the communication apparatus, whether the communication apparatus operates as a providing apparatus for providing a communication parameter to a receiving apparatus or as a receiving apparatus for receiving a communication parameter from a providing apparatus;

providing, in a case where it is decided that the communication apparatus operates as a providing apparatus, a communication parameter which includes at least one of a network identifier, and encryption key, an authentication scheme or a frequency channel to the first another communication apparatus;

establishing the wireless network, compliant with IEEE 802.11 standard series, with the first another communication apparatus by using the provided communication parameter; and

transmitting, after the wireless network compliant with IEEE 802.11 standard series has been established with the first another communication apparatus, information indicating the first another communication apparatus that has been provided with the communication parameter by the providing step to a second another communication apparatus different from the communication apparatus and the first another communication apparatus, wherein the second another communication apparatus is an apparatus that participates in the wireless network,

wherein the communication apparatus further operates as an authenticating apparatus for an authentication process performed with a receiving apparatus in a case where it is decided that the communication apparatus operates as a providing apparatus, and wherein the communication apparatus further operates as an authenticated apparatus for an authentication process performed with a providing apparatus in a case where it is decided that the communication apparatus operates as a receiving apparatus.

10. The method according to claim 9, further comprising receiving, in a case where it is decided that the communication apparatus operates as a receiving apparatus, a communication parameter from a providing apparatus.

11. The method according to claim 9, wherein the transmitting transmits the information in a case where the communication apparatus provides a communication parameter to the second another communication apparatus.

12. The method according to claim 9, wherein the communication parameter is a parameter for connecting to the wireless network.

13. The method according to claim 9, wherein the decision is performed by communication in the wireless network compliant with IEEE 802.11 standard series.

14. The method according to claim 9, wherein the transmitting transmits the information in accordance with a request transmitted from the second another communication apparatus.

15. The method according to claim 9, wherein the second another communication apparatus participates in the wireless network using the communication parameter received from the communication apparatus.

16. The method according to claim 9, wherein the wireless network is a network based on an ad-hoc mode.

17. A non-transitory computer-readable storage medium storing a computer program that causes a computer comprised in a communication apparatus to decide, from among the communication apparatus and a first another communication apparatus that forms a wireless network with the communication apparatus, whether to operate as a providing apparatus for providing a communication parameter to a receiving apparatus or as a receiving apparatus for receiving a communication parameter from a providing apparatus;

provide, in a case where it is decided that the communication apparatus operates as a providing apparatus, a communication parameter which includes at least one of a network identifier, an encryption key, an authentication scheme or a frequency channel to the first another communication apparatus;

establish the wireless network, compliant with IEEE 802.11 standard series, with the first another communication apparatus by using the provided communication parameter; and

transmit, after the wireless network compliant with IEEE 802.11 standard series has been established with the first another communication apparatus, information indicating the first another communication apparatus that has been provided with the communication parameter by the providing step to a second another communication apparatus different from the communication apparatus and the first another communication apparatus, wherein the second another communication apparatus is an apparatus that participates in the wireless network,

wherein the communication apparatus further operates as an authenticating apparatus for an authentication process performed with a receiving apparatus in a case where it is decided that the communication apparatus operates as a providing apparatus, and wherein the communication apparatus further operates as an authenticated apparatus for an authentication process performed with a providing apparatus in a case where it is decided that the communication apparatus operates as a receiving apparatus.