US 11,943,220 B2
Smart device identity recognition method and system, electronic device, and storage medium
Hsiang-Chih Hsu, Foshan (CN)
Assigned to MIDEA GROUP CO., LTD., Foshan (CN)
Appl. No. 17/614,362
Filed by MIDEA GROUP CO., LTD., Foshan (CN)
PCT Filed Dec. 31, 2019, PCT No. PCT/CN2019/130399
§ 371(c)(1), (2) Date Nov. 25, 2021,
PCT Pub. No. WO2021/103269, PCT Pub. Date Jun. 3, 2021.
Claims priority of application No. 201911167125.2 (CN), filed on Nov. 25, 2019.
Prior Publication US 2022/0239646 A1, Jul. 28, 2022
Int. Cl. H04L 9/40 (2022.01); H04L 9/32 (2006.01)
CPC H04L 63/0876 (2013.01) [H04L 63/12 (2013.01); H04L 63/166 (2013.01); H04L 9/32 (2013.01); H04L 63/0272 (2013.01); H04L 63/08 (2013.01); H04L 63/1466 (2013.01); H04L 2463/081 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for identifying a smart device, comprising:
determining a first data randomness degree of inter-packet difference data in a network data packet sent by a smart device to be identified; and
determining an identity of the smart device to be identified based on a comparison result between the first data randomness degree and a second data randomness degree, wherein the second data randomness degree is a data randomness degree of inter-packet difference data in a network data packet sent by an identified smart device, the data randomness degree indicates a randomness degree of generating the inter-packet difference data;
wherein the determining an identity of the smart device to be identified based on a comparison result between the first data randomness degree and a second data randomness degree further comprises:
determining the identity of the smart device to be identified based on a comparison result between a first characteristic value extracted from a transport layer message sent by the smart device to be identified and a second characteristic value extracted from a transport layer message sent by the identified smart device, when an absolute value of a difference between the first data randomness degree and the second data randomness degree is between a first threshold and a second threshold; and
wherein the first threshold is configured to indicate that the smart device to be identified has a same identity as the identified smart device, the second threshold is configured to indicate that the smart device to be identified has a different identity from the identified smart device, and the transport layer message is a transport layer message with an inter-packet difference.