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:
Sep. 01, 2026
Filed:
Oct. 13, 2022
Blockchain Labs Inc., Seoul, KR;
Yong Tae Kim, Seoul, KR;
Byung Wan Lim, Seoul, KR;
BLOCKCHAIN LABS INC., Seoul, KR;
Abstract
The present disclosure related to a client device including a communication interface configured to communicate with an agency server and a counterpart device, a memory, and a processor. The processor may transmit a topic creation request to the agency server, when a topic creation notification is received from the agency server, generate a first subscription DID corresponding to the topic, a pair of first subscription private key and first subscription public key corresponding to the first subscription DID, transmit the first subscription DID to the counterpart device, receive a second subscription DID generated by the counterpart device from the agency server, generate a first encryption key based on the first subscription private key and the second subscription DID, and transmit message data encrypted with the first encryption key to the agency server.