公开(公告)号：US20230163945A1

公开(公告)日：2023-05-25

申请号：US17954029

申请日：2022-09-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seong Cheon PARK ,  Hyun Woo KIM ,  Jung Chan NA

IPC: H04L9/00 ,  H04L9/06 ,  G06F7/487

CPC classification number: H04L9/008 ,  H04L9/0618 ,  G06F7/4876

Abstract: Provided are a method and apparatus for a hardware-based accelerated arithmetic operation on homomorphically encrypted messages. The method of performing hardware-based modular multiplication on homomorphically encrypted messages according to the present invention includes receiving a plurality of homomorphically encrypted messages expressed in a polynomial form and a modulus for modular multiplication, decomposing the modulus into a product of a plurality of disjoint factors through CRT operation, and extracting a divided ciphertext from a plurality of homomorphically encrypted messages based on each of the disjoint factors, performing NTT transformation on each coefficient of the divided ciphertext, performing a pointwise multiplication operation between result values of the NTT transformation, performing INTT transformation on a result value of the pointwise multiplication operation to obtain the divided ciphertext, and merging the divided ciphertext obtained in the performing of the INTT transformation through ICRT operation to generate an output ciphertext.

公开(公告)号：US20250097008A1

公开(公告)日：2025-03-20

申请号：US18949266

申请日：2024-11-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kyu Sung LEE ,  Seong Cheon PARK ,  Shin Yuk KANG ,  Hyun Woo KIM ,  Su Yeon JANG

IPC: H04L9/00 ,  B29C64/393 ,  B33Y50/02 ,  H04L9/08

Abstract: Provided are a three-dimensional (3D) data generation device, an analysis server, and a 3D printing method employing a homomorphic encryption scheme. The 3D data generation device includes a memory, a scan module, and a processor connected to the memory and the scan module. The processor generates 3D data of an object scanned through the scan module and encrypts the 3D data in accordance with a homomorphic encryption scheme.

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.

公开(公告)号：US20240160423A1

公开(公告)日：2024-05-16

申请号：US18505799

申请日：2023-11-09

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seong Cheon PARK ,  Hyun Woo KIM ,  Su Yeon JANG

IPC: G06F8/54

CPC classification number: G06F8/54

Abstract: Disclosed herein is a program conversion apparatus, which converts a first program to which homomorphic encryption is not applied into a second program to which the homomorphic encryption is applied, including a memory, which stores a first library for configuring the first program and a second library for configuring the second program, and a processor configured to convert the first program into the second program through conversion between operations provided by the first and second libraries.

公开(公告)号：US20200350264A1

公开(公告)日：2020-11-05

申请号：US16765122

申请日：2018-11-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seong Cheon PARK

IPC: H01L23/00 ,  H01L23/522 ,  G06F21/75

Abstract: The present invention relates to a self-destructible apparatus and method. The apparatus includes a self-destructible operation unit composed of a plurality of cavity cells; a variable voltage/current supply unit configured to supply a variable voltage and current to the self-destructible operation unit; an identification (ID) matching unit configured to compare an ID input from an external source to a digital physical unclonable function (PUF) ID assigned to each of the cavity cells to determine whether the two IDs match each other so that power of the variable voltage/current supply unit is supplied to only a desired cavity cell among the plurality of cavity cells; a digital PUF ID generation unit configured to generate the digital PUF ID input to the ID matching unit; and an external ID input unit configured to generate the ID input to the ID matching unit.