Wireless communication authentication process and system

• US 20070064947A1
• Filed: 09/22/2005
• Published: 03/22/2007
• Est. Priority Date: 09/22/2005
• Status: Active Grant

• Current Assignee: Konica Minolta Business Technologies Incorporated (Konica Minolta Inc.)
• Original Assignee: Konica Minolta Business Technologies Incorporated (Konica Minolta Inc.)
• Inventors: King, Chao, Christ, John
• Granted Patent: US 7,627,124 B2
• Time in Patent Office: Days
• US Class Current: 380/270
• CPC Class Codes: H04L 2209/80 Wireless network architectures or network communication protocols for wireless network security H04W12/00
• CPC Class Codes: H04L 63/06 for supporting key management in a packet data network cryptographic mechanisms or cryptographic arrangements for key management H04L9/08
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 9/0838 Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these network architectures or network communication protocols for key exchange in a packet data network H04L63/061
• CPC Class Codes: H04L 9/32 including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 12/50 Secure pairing of devices
• CPC Class Codes: H04W 12/65 Environment-dependent, e.g. using captured environmental data

Abstract

The present application relates to an authentication process and system for a wireless communication system between a host device and a client device. This authentication process and system can make the confirmation of the authentication easier and clearer.

Claims

1. A method for an authentication to begin a wireless communication between a host device and a client device, the method comprising the steps of:

sharing at least one of a host public key and a client public key with the host device and the client device, the host public key being unique to the host device and the client public key being unique to the client device,

calculating a host connection key which is attributed to at least one of the host public key and the client public key,

calculating a client connection key which is attributed to at least one of the host public key and the client public key,

producing and outputting a first tone based on the host connection key,

producing and outputting a second tone based on the client connection key,

wherein if the authorization of the wireless communication between the host device and the client device are performed appropriately, the first tone is same as the second tone, and

wherein after the authorization of the wireless communication between the host device and the client device are performed appropriately, the host device and the client device are ready to transmit data with each other.

2. The method of claim 1,

wherein the sharing step comprises the steps of;

transmitting the client public key from the client device to the host device,

wherein the host connection key calculating step comprises the steps of;

calculating an encoded key based on the client public key transmitted from the client device, and

calculating the host connection key based on the encoded key,

wherein the encoded key calculated by the host device is transmitted from the host device to the client device,

wherein the client connection key calculating step comprises the steps of;

calculating the client connection key based on the encoded key transmitted from the host device.

3. The method of claim 2,

wherein in the host connection key calculating step, the host connection key is calculated based on the encoded key and a private key, and

wherein in the client connection key calculating step, the client connection key is calculated based on the encoded key and the private key.

4. The method of claim 3,

wherein the client device stores the private key beforehand, and the host device stores the same private key beforehand.

5. The method of claim 2,

wherein in the host connection key calculating step, the encoded key is calculated based on the client public key transmitted from the client device and the host public key stored in the host device.

6. A host device for communicating with a client device via wireless communication comprising:

a storing unit which stores a host public key and a private key,

a processing unit which calculates an encoded key based on the host public key and a client public key transmitted from the host device via the wireless communication, and calculates a host connection key based on the encoded key and the private key for an authentication of the wireless communication,

a transmitting unit which transmits the encoded key to the client device, and

a sound outputting unit which outputs a first tone corresponding to the host connection key,

wherein if the authorization of the wireless communication between the host device and the client device are performed appropriately, the first tone is same as a second tone outputted from the client device, and

wherein after the authorization of the wireless communication between the host device and the client device are performed appropriately, the host device are ready to exchange data with the client device.

7. A client device for communicating with a host device via wireless communication comprising

a storing unit which stores a client public key and a private key,

a transmit unit which transmits the client public key to the host device,

a processing unit which calculates a client connection key based on the private key and an encoded key which is calculated by the host device based on the client public key and transmitted from the host device for an authentication of the wireless communication,

a sound outputting unit which outputs a second tone corresponding to the client connection key,

wherein if the authorization of the wireless communication between the host device and the client device are performed appropriately, the second tone is same as a first tone outputted from the host device, and

wherein after the authorization of the wireless communication between the host device and the client device are performed appropriately, the client device are ready to exchange data with the host device.