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Bluetooth device authentication method and Bluetooth device

A technology of a Bluetooth device and an authentication method, applied in the electronic field, can solve the problems of long time required to complete the connection, not the target device, time-consuming, etc., to shorten the time to complete the connection, avoid illegal interception, and ensure the effect of security.

Inactive Publication Date: 2021-06-11
陈峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Since Bluetooth uses frequency hopping technology, it usually takes about 10 seconds before the scanning frequency and the search frequency are the same. Therefore, the process of discovering the device (ie, the above steps 1 and 2) is time-consuming, resulting in the completion of the connection. takes longer
It is cumbersome to determine the target device from multiple slave devices (i.e. step 3 above,) When there are a large number of slave devices in discoverable mode near the master device, it may take longer to find the target device
In addition, the target device is selected by the user through the device name. If there are multiple slave devices with the same device name (different Bluetooth addresses), the connection may not be the target device.
In addition, when bluetooth devices use wireless technology for data transmission, data transmission is easy to be intercepted or monitored, especially when bluetooth devices are authenticated, since no encrypted channel has been generated, its security needs to be improved

Method used

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  • Bluetooth device authentication method and Bluetooth device
  • Bluetooth device authentication method and Bluetooth device
  • Bluetooth device authentication method and Bluetooth device

Examples

Experimental program
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Embodiment 1

[0031]This embodiment provides a bluetooth device authentication method. In this embodiment, the first bluetooth device is used as the master device, and the second bluetooth device is used as the slave device. In addition to the bluetooth function, the two also have an audio interface, audio playback and audio Recording (i.e. the audio signal is not played immediately after receiving it, but processed after it is recorded), for example, mobile terminals such as mobile phones, computers, smart watches, smart glasses, smart key devices with signature functions, or password generation function OTP token, etc.

[0032] figure 1 It is a flow chart of the Bluetooth device authentication method provided by Embodiment 1 of the present invention, such as figure 1 As shown, the method includes the following steps S101 to S105.

[0033] Step S101, the audio interface of the first Bluetooth device is connected to the audio interface of the second Bluetooth device, the first Bluetooth d...

Embodiment 2

[0073] This embodiment provides a Bluetooth device, which can be used to implement the operations performed by the first Bluetooth device or the second Bluetooth device in Embodiment 1. Figure 4 It is a schematic diagram of the Bluetooth device provided by Embodiment 2 of the present invention Figure 1 ,Such as Figure 4 As shown, Bluetooth devices include:

[0074] Audio interface 41 (can be audio plug or audio socket,) is used for being connected with target bluetooth device;

[0075] The receiving module 42 is connected to the audio interface 41, and is used to receive the first audio signal output by the target bluetooth device through the audio interface;

[0076] A decoding module 43, connected to the receiving module 42, for decoding the first audio signal to obtain decoded data;

[0077] The first obtaining module 44 is connected to the decoding module 43, and is used to obtain the Bluetooth address of the target Bluetooth device from the decoded data;

[0078] C...

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Abstract

The invention discloses a Bluetooth device authentication method and a Bluetooth device, and the method comprises the steps: an audio interface of a first Bluetooth device is connected with an audio interface of a second Bluetooth device, and the first Bluetooth device receives a first audio signal output by the second Bluetooth device through the audio interface of the first Bluetooth device, and decodes the first audio signal to obtain decoded data; the first Bluetooth device obtains the Bluetooth address of the second Bluetooth device from the decoded data; the first Bluetooth device is connected with the second Bluetooth device according to the Bluetooth address of the second Bluetooth device; the first Bluetooth device sends first Bluetooth authentication information to the second Bluetooth device through the audio interface, and / or the second Bluetooth device sends second Bluetooth authentication information to the first Bluetooth device through the audio interface; and authentication is completed based on the first Bluetooth authentication information and / or the second Bluetooth authentication information. A Bluetooth address is obtained through the audio interface to enter a connection process to realize quick connection, and authentication between Bluetooth devices is performed through the audio interface to ensure authentication security.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a bluetooth device authentication method and a bluetooth device. Background technique [0002] As a short-distance wireless communication technology commonly used in the world, Bluetooth technology provides short-distance data communication means, and has great advantages in low cost, low power consumption, and relatively high speed. When two Bluetooth devices are connected, one acts as a master device and the other acts as a slave device. Generally, a device with Bluetooth communication function can be used as a master device or as a slave device, that is to say, the Bluetooth device usually works in the slave mode (that is, as a slave device) and waits for other master devices to connect; when necessary, it can be converted into a master device. mode (i.e. as a master device,) initiates connections (also known as paging or calling) to other slave devices. [0003] When us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/80H04W12/50H04W12/06
CPCH04W12/06H04W4/80
Inventor 陈峰
Owner 陈峰
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