The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 2020
Filed:
Aug. 01, 2018
Samsung Sds Co., Ltd., Seoul, KR;
Do Hyoung Kim, Seoul, KR;
Soon Hyoung Hwang, Seoul, KR;
Se Hyuk Noh, Seoul, KR;
Nam Soo Jeon, Seoul, KR;
Won Kyoung Kim, Seoul, KR;
Jae Sung Jeong, Seoul, KR;
Mi Ran Kim, Seoul, KR;
Joo Hee Choi, Seoul, KR;
SAMSUNG SDS CO., LTD., Seoul, KR;
Abstract
A device-to-device (D2D) communication method is provided. According to an inventive concept, the method comprises, storing, by a first device, first authentication data including a hash chain, which is a sequential concatenation of hash values, and storing, by a second device, second authentication data including an initial hash value of the hash chain, transmitting, by the first device, a final hash value of the hash chain to the second device, determining, by the second device, whether authentication between the first and second devices has succeeded by repeatedly hashing the initial hash value stored in the second device until a hash value identical to the final hash value is returned, and if a determination is made that authentication between the first and second devices has succeeded, performing, by the first and second devices, a connection establishment process for establishing a connection between the first and second devices.