公开(公告)号：US20230188356A1

公开(公告)日：2023-06-15

申请号：US17860001

申请日：2022-07-07

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jong-Choul Yim ,  Jin-Tae Oh

IPC: H04L9/32 ,  H04L9/08

CPC classification number: H04L9/3242 ,  H04L9/3247 ,  H04L9/0825

Abstract: Disclosed herein are an apparatus and method for distributed consensus using multi-signature. The apparatus includes one or more processors and executable memory for storing at least one program executed by the one or more processors. The at least one program may send a Pre-Prepare message for processing distributed consensus on a transaction to nodes participating in the distributed consensus in a blockchain network, verify the nodes using message authentication code values included in Prepare messages received from the nodes, send the nodes an A-Prepare message for announcing that the Prepare messages are received from a number of verified nodes equal to or greater than a quorum required for the distributed consensus, generate a multi-signature value using multi-signature fragment values included in Commit messages received from the nodes, and send an A-Commit message including the multi-signature value to the nodes, thereby processing consensus on the transaction.

公开(公告)号：US12177358B2

公开(公告)日：2024-12-24

申请号：US17860001

申请日：2022-07-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jong-Choul Yim ,  Jin-Tae Oh

IPC: H04L9/32 ,  H04L9/08

Abstract: Disclosed herein are an apparatus and method for distributed consensus using multi-signature. The apparatus includes one or more processors and executable memory for storing at least one program executed by the one or more processors. The at least one program may send a Pre-Prepare message for processing distributed consensus on a transaction to nodes participating in the distributed consensus in a blockchain network, verify the nodes using message authentication code values included in Prepare messages received from the nodes, send the nodes an A-Prepare message for announcing that the Prepare messages are received from a number of verified nodes equal to or greater than a quorum required for the distributed consensus, generate a multi-signature value using multi-signature fragment values included in Commit messages received from the nodes, and send an A-Commit message including the multi-signature value to the nodes, thereby processing consensus on the transaction.