Samsungsdsco.,ltd.

Joo Hee Choi

Jae S Jeong

Do Hyoung Kim

Nam Soo Jeon

Mi Ran Kim

Se Hyuk Noh

Won Kyoung Kim

Soon Hyoung Hwang

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.

Device-to-device communication method including device-to-device authentication using hash chain

Growing community of inventors

Seoul, South Korea

Joo Hee Choi