METHOD FOR REALIZING BLUETOOTH-BINDING BETWEEN SMART KEY DEVICE AND MOBILE DEVICE

• US 20160269103A1
• Filed: 05/25/2016
• Published: 09/15/2016
• Est. Priority Date: 12/12/2014
• Status: Active Grant

• Current Assignee: Feitian Technologies Company Limited
• Original Assignee: Feitian Technologies Company Limited
• Inventors: LU, ZHOU, YU, HUAZHANG
• Granted Patent: US 9,787,393 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 21/43 wireless channels
• CPC Class Codes: G06F 21/445 by mutual authentication, e.g. between devices or programs
• CPC Class Codes: G06F 2221/2105 Dual mode as a secondary aspect
• CPC Class Codes: G06F 2221/2107 File encryption
• CPC Class Codes: H04B 7/26 at least one of which is mobile
• CPC Class Codes: H04L 2101/622 Layer-2 addresses, e.g. medium access control [MAC] addresses
• CPC Class Codes: H04L 63/0876 based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint
• 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 12/71 Hardware identity
• CPC Class Codes: H04W 4/00 Services specially adapted for wireless communication networks; Facilities therefor
• CPC Class Codes: H04W 52/0209 in terminal devices terminal devices per se H04W88/02
• CPC Class Codes: H04W 76/00 Connection management
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/20 Master-slave selection or change arrangements
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

The present invention discloses a method for realizing bluetooth-binding between a smart key device and a mobile device, which belongs to the field of information security. The method comprises: the smart key device performs bluetooth pairing with a current paired mobile device, obtains and determines a bind identification when the pairing succeeds; in case that the bind identification is bind, it determines whether a mac address of the current mobile device is the same as a stored mac address of the bound mobile device, and, if yes, executes a data interactive operation, otherwise, reports an error; in case that the bind identification is unbind, it takes the mac address of the current paired mobile device as the mac address of the bound mobile device and the address, and sets the bind identification as bind, and executes the data interactive operation.

Claims

1. A method for realizing bluetooth-binding between a smart key device and a mobile device, comprising:

Step S1, powering on the smart key device and initializing the smart key device;

Step S2, performing, by the smart key device, bluetooth pairing with a current paired mobile device, and determining whether the pairing is finished in a preset duration, if yes, executing Step S3, otherwise, starting a power-saving mode;

Step S3, obtaining and determining, by the smart key device, a binding state of the smart key device;

executing Step S4 in case that the binding state is bind;

executing Step S6 in case that the binding state is unbind;

Step S4, obtaining, by the smart key device, a mac address of the current paired mobile device from a bluetooth module storage area of the smart key device, and obtaining a mac address of a bound mobile device from a device storage area of the smart key device;

Step S5, determining, by the smart key device, whether the mac address of the bound mobile device is the same as the mac address of the current paired mobile device, if yes, executing Step S7, otherwise, reporting an error and starting the power-saving mode;

Step S6, taking, by the smart key device, the mac address of the current paired mobile device in the bluetooth module storage area as the mac address of the bound mobile device, and storing the mac address into the device storage area, and setting the binding state as bind, and executing Step S7;

Step S7, performing, by the smart key device, a data interactive operation between the smart key device and the current paired mobile device.

2. The method as claimed in claim 1, wherein Step S2 specifically comprises:

Step S2-1, turning on, by the smart key device, an overtime-pairing timer interrupt;

Step S2-2, checking, by the smart key device, whether a timer-overtime identification is set, if yes, starting the power-saving mode, otherwise, executing Step S2-3;

Step S2-3, determining, by the smart key device, whether the bluetooth pairing is finished, if yes, executing Step S3, otherwise, starting the power-saving mode;

the method further comprises;

starting, by the smart key device, an overtime-pairing timer, triggering the overtime-pairing timer interrupt when a value of the overtime-pairing timer reaches a preset duration, setting the timer-overtime identification, and exiting from the overtime-pairing timer interrupt.

3. The method as claimed in claim 1, wherein Step S3 specifically comprises:

obtaining, by the smart key device, a device bluetooth-bind identification from the device storage area of the smart key device, and determining whether the device bluetooth-bind identification is set, if yes, the binding state being bind, and executing Step S4, otherwise, the binding state being unbind, and executing Step S6; and

in Step S6, the setting the binding state as bind specifically comprises;

setting the device bluetooth-bind identification.

4. The method as claimed in claim 1, wherein before Step S4, the method further comprises:

determining whether the mac address of the current paired mobile device can be obtained from the bluetooth module storage area, and determining whether the mac address of the bound mobile device can be obtained from the device storage area, if yes, executing Step S4, otherwise, reporting an error and starting the power-saving mode; and

before Step S6, the method further comprises;

determining whether the mac address of the current paired mobile device can be obtained from the bluetooth module storage area, if yes, executing Step S6, otherwise, reporting an error, and starting the power-saving mode.

5. The method as claimed in claim 1, wherein, in Step S2, the smart key device performing the bluetooth pairing with the current paired mobile device specifically comprises:

Step 1, waiting, by the smart key device, for receiving a bluetooth-pairing request sent by the current paired mobile device;

Step 2, obtaining, by the smart key device, a mac address of the smart key device stored in the bluetooth module storage area after receiving the bluetooth-pairing request, and sending the mac address of the smart key device to the current paired mobile device;

Step 3, storing, by the current paired mobile device, the mac address of the smart key device, and sending the mac address of the current paired mobile device to the smart key device;

Step 4, storing, by the smart key device, the mac address of the current paired mobile device into the bluetooth module storage area, and the paring being finished.

6. The method as claimed in claim 5, wherein

Step 3 specifically comprises:

storing, by the current paired mobile device, the mac address of the smart key device, receiving a pairing password entered by a user, and sending a verifying-pairing-password instruction which includes the pairing password and the mac address of the current paired mobile device to the smart key device;

between Step 3 and Step 4, the method further comprises;

obtaining, by the smart key device, the pairing password from the pairing-password instruction after receiving the verifying-paired-password instruction, and determining whether the pairing password matches a pairing password stored inside the device, if yes, executing Step 4, otherwise, reporting an error, and ending.

7. The method as claimed in claim 1, wherein between Step S1 and Step S2, the method further comprises:

Step a1, determining, by the smart key device, whether key-triggered information is received, if yes, executing Step a2, otherwise, executing Step S2;

Step a2, determining, by the smart key device, the binding state;

executing Step a3 in case that the binding state is bind;

executing Step a4 in case that the binding state is unbind;

Step a3, deleting the mac address of the bound mobile device stored in the device storage area, and setting the binding state as unbind, and executing Step S2;

Step a4, obtaining the mac address of the current paired mobile device from the bluetooth module storage area, taking the mac address as the mac address of the bound mobile device, and storing the address into the device storage area, and setting the current binding state as bind, and executing Step S2.

8. The method as claimed in claim 7, wherein

before Step a3, the method further comprises:

prompting, by the smart key device, information whether unbinding is needed, and checking a key operation;

executing Step a3 in case that an OK key is pressed;

canceling prompting information of unbinding and executing Step S2 in case that a Cancel key is pressed.

9. The method as claimed in claim 7, wherein, before Step a4, the method further comprises:

prompting, by the smart key device, information whether binding is needed, and checking a key operation;

executing Step a4 in case that the OK key is pressed;

canceling prompting information of binding and executing Step S2 in case that a Cancel key is pressed.

10. The method as claimed in claim 7, wherein, before Step a4, the method further comprises:

determining, by the smart key device, whether the mac address of the current paired mobile device can be obtained from the bluetooth module storage area, if yes, executing Step a4, otherwise, returning information that binding cannot be performed, and executing Step S2.

11. The method as claimed in claim 1, wherein between Step S1 and Step S2, the method further comprises:

Step b1, determining, by the smart key device, whether audio data is received, if yes, executing Step b2, otherwise, executing Step S2;

Step b2, determining, by the smart key device, a type of operation according to the audio data;

executing Step b3 in case that the operation is binding;

executing Step b4 in case that the operation is unbinding;

Step b3, taking, by the smart key device, a mac address of a mobile device in the audio data as the mac address of the bound mobile device and storing the address into the device storage area, and setting the binding state as bind, and executing Step S2;

Step b4, deleting, by the smart key device, the mac address of the bound mobile device in the device storage area, and setting the binding state as unbind, and executing Step S2.

12. The method as claimed in claim 11, wherein Step S1 further comprises:

initializing audio communication; and

before executing Step S2, the method further comprises;

turning down, by the smart key device, the audio communication, and executing Step S2.

13. The method as claimed in claim 11, wherein, before Step b3, the method further comprises:

Step c1, obtaining the binding state from the device storage area, and determining whether the binding state is bind, if yes, executing Step c2, otherwise, executing Step b3;

Step c2, obtaining the mac address of the bound mobile device from the device storage area, determining whether the mac address of the mobile device in the audio data is the same as the mac address of the bound mobile device in the device storage area, if yes, executing Step b5, otherwise, executing Step b3.

14. The method as claimed in claim 11, wherein, before Step b4, the method further comprises:

Step d1, obtaining the binding state from the device storage area, and determining whether the binding state is bind, if yes, executing Step b4;

otherwise, executing Step d2;

Step d2, obtaining the mac address of the bound mobile device from the device storage area, and determining whether the mac address of the mobile device in the audio data is the same as the mac address of the bound mobile device in the device storage area, if yes, executing Step b5, otherwise, executing Step b4.

15. The method as claimed in claim 11, wherein, before Step b1, the method further comprises:

Step e1, waiting, by the mobile device, for receiving a choice from a user;

executing Step e2 in case that the choice from the user is bluetooth binding;

executing Step e3 in case that the choice from the user is unbinding;

Step e2, obtaining, by the mobile device, the mac address of the mobile device, generating, according to the mac address of the mobile device, audio data indicating that binding is needed, and sending the audio data to the smart key device, and executing Step b1;

Step e3, generating, by the mobile device, the audio data indicating that unbinding is needed, and sending the audio data to the smart key device, and executing Step b1.

16. The method as claimed in claim 15, wherein, in Step e2, the generating, according to the mac address of the mobile device, the audio data indicating that binding is needed, specifically comprises:

setting, by the mobile device, the bluetooth-bind identification of the mobile device, and generating the audio data according to the mac address of the mobile device and the set bluetooth-bind identification of the mobile device;

in Step e3, the generating the audio data indicating unbinding is needed specifically comprises;

resetting, by the mobile device, the bluetooth-bind identification of the mobile device, and generating the audio data according to the reset bluetooth-bind identification of the mobile device;

in Step b2, the determining the type of the operation according to the audio data specifically comprises;

obtaining the bluetooth-bind identification of the mobile device from the audio data, and determining the bluetooth-bind identification of the mobile device;

in case that the bluetooth-bind identification is set, a binding operation being indicated, executing Step b3;

in case that the bluetooth-bind identification is reset, an unbinding operation is indicated, executing Step b5.

17. The method as claimed in claim 15, wherein, before Step e1, the method further comprises:

Step f1, obtaining, by the mobile device, handshake data stored inside the device, generating a handshake instruction according to the handshake data, and sending the handshake instruction to the smart key device;

Step f2, parsing, by the smart key device, the received handshake instruction to obtain the handshake data, determining whether the handshake data in the handshake instruction matches handshake data stored inside the device, if yes, executing Step f3, otherwise, executing Step S2;

Step f3, generating, by the smart key device, a handshake response according to the handshake data stored inside the device, and returning the handshake response to the mobile device;

Step f4, parsing, by the mobile device, the received handshake response to obtain the handshake data, determining whether the handshake data in the handshake response matches the handshake data stored inside the device, if yes, executing Step e1, otherwise, executing Step S2.

18. The method as claimed in claim 1, wherein Step S7 specifically comprises:

Step g1, waiting, by the smart key device, for receiving an instruction sent by the current paired mobile device, and determining whether the instruction is received, if yes, processing the received instruction, and returning to Step g1 after the processing is finished, otherwise, executing Step g2;

Step g2, checking, by the smart key device, a key operation, and determining whether a key trigger is received in a preset duration, if yes, executing Step g3, otherwise, starting the power-saving mode;

Step g3, determining, by the smart key device, whether received trigger information is trigger information of long pressing the OK key, if yes, executing Step g4, otherwise, returning to Step g1;

Step g4, obtaining, by the smart key device, the binding state from the device storage area and checking the binding state;

executing Step g5 in case that the binding state is bind;

executing Step g6 in case that the binding state is unbind;

Step g5, setting, by the smart key device, the binding state as unbind, deleting the mac address of the bound mobile device stored in the device storage area, and returning to Step g1;

Step g6, setting, by the smart key device, the binding state as bind, storing the mac address of the current paired mobile device into the device storage area, and returning to Step g1.

19. The method as claimed in claim 18, wherein, before Step g5, the method further comprises:

prompting, by the smart key device, information whether unbinding is needed, and checking the key operation;

executing Step g5 in case that the OK key is pressed;

canceling prompting information of unbinding and returning to Step g1 in case that a Cancel key is pressed.

20. The method as claimed in claim 18, wherein, before Step g6, the method further comprises:

prompting, by the smart key device, information whether binding is needed, and checking the key operation;

executing Step g6 in case that the OK key is pressed;

canceling prompting information of binding and executing Step g1 in case that a Cancel key is pressed.