Pairing method, device, machine-readable storage medium, and system

Patent metadata

Field	Value
Publication number	US-11178709-B2
Application number	US-201916576423-A
Country	US
Kind code	B2
Filing date	Sep 19, 2019
Priority date	Mar 30, 2017
Publication date	Nov 16, 2021
Grant date	Nov 16, 2021

Abstract

A pairing method implemented in a first device includes obtaining identification information of a second device. The pairing method also includes transmitting a pairing request message to the second device, the pairing request message carrying a system key. The pairing method also includes receiving a pairing response message from the second device. The pairing method also includes analyzing the pairing response message based on the system key. The pairing method further includes verifying the analyzed pairing response message based on the identification information.

First claim

What is claimed is:

1. A pairing method implemented in a first device, comprising:
obtaining identification information of a second device, the identification information including a first portion and a second portion;
generating a system key;
generating, based on the first portion of the identification information, a pairing request message carrying the system key;
transmitting the pairing request message to the second device;
receiving a pairing response message from the second device, the pairing response message including confirmation information;
analyzing the pairing response message based on the system key to obtain the confirmation information; and
verifying the confirmation information with the second portion of the identification information to determine a pairing result.

2. The pairing method of claim 1 , wherein the identification information comprises pairing identification information, the pairing identification information being first pairing identification information, and the method further comprises:
receiving a pairing creation message from the second device, the pairing creation message being encrypted based on second pairing identification information; and
verifying the pairing creation message based on the first pairing identification information.

3. The pairing method of claim 1 , wherein the identification information comprises pairing confirmation information, the pairing response message is encrypted based on the system key, and wherein verifying the confirmation information with the second portion of the identification information comprises:
verifying the confirmation information with the pairing confirmation information to determine the pairing result.

4. The pairing method of claim 3 , wherein the analyzed pairing response message comprises the confirmation information.

5. The pairing method of claim 1 , wherein the identification information comprises pairing identification information and pairing confirmation information, and wherein the method further comprises:
analyze a first specified location of the identification information to obtain the pairing identification information, the identification information including a plurality of bits of information, and the first specified location including a first portion of the plurality of bits; and
analyze a second specified location of the identification information to obtain the pairing confirmation information, the second specified location including a second portion of the plurality of bits.

6. The pairing method of claim 1 , wherein the identification information comprises pairing identification information, the pairing identification information comprises a check code, and wherein the method further comprises:
verifying the pairing identification information based on the check code.

7. The pairing method of claim 1 , wherein transmitting the pairing request message to the second device comprises:
adding first device information to the pairing request message; and
transmitting the pairing request message to the second device.

8. The pairing method of claim 1 , further comprising:
determining that pairing between the first device and the second device has failed if the pairing response message is not received from the second device within a predetermined time after transmitting the pairing request message to the second device; or
determining that the pairing between the first device and the second device has failed if it is determined that the pairing response message is invalid in verifying the confirmation information with the second portion of the identification information.

9. The pairing method of claim 1 , wherein
the first device is an unmanned aerial vehicle and the second device is a control device; or
the first device is the control device and the second device is the unmanned aerial vehicle.

10. A pairing device as a first device, comprising:
an imaging device configured to capture an image comprising identification information of a second device;
a processor configured to:
obtain the identification information of the second device based on the image, the identification information including a first portion and a second portion;
generate a system key; and
generate, based on the first portion of the identification information, a pairing request message carrying the system key;

a transmitter configured to transmit the pairing request message to the second device; and
a receiver configured to receive a pairing response message from the second device, the pairing response message including confirmation information,
wherein the processor is configured to analyze the pairing response message based on the system key to obtain the confirmation information and verify the confirmation information with the second portion of the identification information to determine a pairing result.

11. The pairing device of claim 10 ,
wherein the identification information comprises pairing identification information,
wherein the processor is configured to encrypt the pairing request message based on the pairing identification information, and
wherein the transmitter is configured to transmit the encrypted pairing request message to the second device.

12. The pairing device of claim 10 ,
wherein the identification information comprises pairing identification information, the pairing identification information being first pairing identification information,
wherein the receiver is configured to receive pairing creation information from the second device, the pairing creation information being encrypted based on second pairing identification information, and
wherein the processor is configured to verify the pairing creation information based on the first pairing identification information.

13. The pairing device of claim 10 ,
wherein the identification information comprises pairing confirmation information,
wherein the pairing response message is encrypted based on the system key,
wherein in verifying the analyzed pairing response message based on the identification information, the processor is configured to verify the pairing response message based on the pairing confirmation information, and
wherein the analyzed pairing response message comprises the confirmation information.

14. The pairing device of claim 10 ,
wherein the identification information comprises pairing identification information and pairing confirmation information, and
wherein the processor is configured to analyze a first specified location of the identification information to obtain the pairing identification information, and analyze a second specified location of the identification information to obtain the pairing confirmation information, the identification information including a plurality of bits of information, the first specified location including a first portion of the plurality of bits, and the second specified location including a second portion of the plurality of bits.

Assignees

• Sz Dji Technology Co Ltd

Inventors

• Zhang Zhipeng
• Yin Xiaojun
• Wang Naibo
• Ma Ning

Classifications

• H04W76/14 Primary

  Direct-mode setup · CPC title

• H04W12/50 Primary

  Secure pairing of devices · CPC title

• H04W8/005

  Discovery of network devices, e.g. terminals · CPC title

• H04L63/08 Primary

  for authentication of entities (cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32) · CPC title

• H04L63/0428

  wherein the data content is protected, e.g. by encrypting or encapsulating the payload · CPC title