公开(公告)号：US20200301894A1

公开(公告)日：2020-09-24

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: G06F16/182 ,  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.

公开(公告)号：US20200301944A1

公开(公告)日：2020-09-24

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: G06F16/27 ,  G06F16/22 ,  G06F16/23

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.