公开(公告)号：US11494403B2

公开(公告)日：2022-11-08

申请号：US16817961

申请日：2020-03-13

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Chang Hyun Lee ,  Sung Kee Noh ,  Hwan Jo Heo ,  Nam Seok Ko

IPC: G06F16/20 ,  G06F16/27 ,  G06F16/23 ,  G06F16/22

Abstract: An off-chain data storage method and apparatus for supporting the integrity and capacity scalability of a data object stored in an off-chain storage. The off-chain data storage method includes collecting a plurality of transactions for a plurality of data objects, creating a root transaction on the basis of a Merkle root of a Merkle tree created based on the collected transactions, and storing the root transaction in a blockchain storage.

公开(公告)号：US11640376B2

公开(公告)日：2023-05-02

申请号：US16776737

申请日：2020-01-30

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hwan Jo Heo ,  Sung Kee Noh ,  Chang Hyun Lee ,  Nam Seok Ko

IPC: G06F16/20 ,  G06F16/182 ,  G06F16/13 ,  H04L9/06

Abstract: Provided are an electronic device and method for managing a decentralized identifier (DID) and more specifically a device and method for managing a DID by giving authority over the DID to a user according to a priority level selected by the user.