公开(公告)号：US20240152904A1

公开(公告)日：2024-05-09

申请号：US18504739

申请日：2023-11-08

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seong Cheon PARK ,  Hyeok Jin LIM

IPC: G06Q20/36 ,  G06Q20/38 ,  G06Q20/40 ,  H04L9/00 ,  H04L9/32

CPC classification number: G06Q20/367 ,  G06Q20/3827 ,  G06Q20/40145 ,  H04L9/008 ,  H04L9/3231 ,  H04L9/3278

Abstract: The present invention relates to a cold wallet apparatus. The cold wallet apparatus includes a homomorphic encryption generation module configured to generate homomorphic encryption using personally identifiable sensitive information; a first authentication code extraction module configured to extract an authentication code from the homomorphic encryption; a second authentication code extraction module configured to extract an authentication code from physical unclonable function (PUF) information of the cold wallet apparatus; a private key generation module configured to combine the authentication code extracted from the homomorphic encryption and the authentication code extracted from the PUF information to generate a private key; and a transaction signature module configured to perform a transaction signature using a wallet account and a wallet address generated based on the private key.