公开(公告)号：US10833853B2

公开(公告)日：2020-11-10

申请号：US16003978

申请日：2018-06-08

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Yongsen Chen ,  Peng Xie ,  Ridong Wan ,  Jun Wu ,  Ming Gong ,  Zhongqian You

IPC: H04W12/06 ,  H04L9/08 ,  H04L9/14 ,  H04W12/00 ,  H04L9/32 ,  G06F7/58

Abstract: A secure communication method comprising obtaining a secret code generated in response to a first communication device being paired with a second communication device, obtaining a prestored product key, generating a module key based on the secret code and the product key, randomly generating a session key, obtaining a key sequence number, auto-incrementing the key sequence number, setting a sending sequence number with an initial value of zero, generating a key frame by performing a computation on the session key and a verification authentication code of the session key using the module key, sending a data packet including the key frame, the key sequence number, the sending sequence number, and a data type to the second communication device. The data type indicates that the data packet is a key data packet.