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:
Jul. 01, 2025
Filed:
Jul. 05, 2022
Electronics and Telecommunications Research Institute, Daejeon, KR;
Kwan-Tae Cho, Daejeon, KR;
Sang-Rae Cho, Chungcheongbuk-do, KR;
Geon-Woo Kim, Daejeon, KR;
Seok-Hyun Kim, Daejeon, KR;
Soo-Hyung Kim, Daejeon, KR;
Young-Sam Kim, Daejeon, KR;
Jong-Hyouk Noh, Daejeon, KR;
Young-Seob Cho, Daejeon, KR;
Jin-Man Cho, Daejeon, KR;
Seung-Hun Jin, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Disclosed herein are an apparatus and method for issuing delegated credentials between digital wallets possessed by multiple users connected to a Decentralized Identifier (DID) registry through wired/wireless communication. The method includes receiving, by a digital wallet of a first user, a delegated credential issuance request message including a newly created DID document from a digital wallet of a second user, generating, by the digital wallet of the first user, a delegated credential using both the delegated credential issuance request message, received from the digital wallet of the second user, and an original credential, previously issued by the digital wallet of the first user, and transmitting, by the digital wallet of the first user, the generated delegated credential and the original credential, together with a delegated credential registration request message, to the digital wallet of the second user.