公开(公告)号：US20230044214A1

公开(公告)日：2023-02-09

申请号：US17692458

申请日：2022-03-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngsik MOON ,  Jiyoup KIM ,  Hongrak SON ,  Dongmin SHIN ,  Junho SHIN ,  Jaehun JANG

IPC: G06F21/60 ,  G06F21/79 ,  G06F13/16 ,  H04L9/00 ,  H04L9/08

Abstract: A method of transmitting data in a storage device includes encrypting original data based on a homomorphic encryption algorithm to generate encrypted data, generating a parameter for regeneration of a ciphertext higher than an operation level of the encrypted data by using the encrypted data and a key value, and transmitting the encrypted data and the parameter to an external host device.

公开(公告)号：US20230269067A1

公开(公告)日：2023-08-24

申请号：US17968375

申请日：2022-10-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hongrak SON ,  Sangpyo KIM ,  Jongmin KIM ,  Jungho AHN ,  Hanbyeul NA ,  Youngsik MOON ,  Junho SHIN

IPC: H04L9/00 ,  H04L9/06 ,  G06F7/72

CPC classification number: H04L9/008 ,  G06F7/722 ,  H04L9/0618 ,  H04L2209/122

Abstract: A method of operating a homomorphic encryption operation accelerator includes performing a number theoretic transform (NTT) operation on each of first homomorphic ciphertext and second homomorphic ciphertext, and performing a base conversion operation by adding a partial sum using a first value of the NTT operation.

公开(公告)号：US20230146149A1

公开(公告)日：2023-05-11

申请号：US17739512

申请日：2022-05-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngsik MOON ,  Jiyoup KIM ,  Hanbyeul NA ,  Hongrak SON

IPC: H04L9/00 ,  H04L9/06

CPC classification number: H04L9/008 ,  H04L9/0618

Abstract: A homomorphic encryption system includes a homomorphic encryption device encrypting original data into a first ciphertext using a homomorphic encryption algorithm, and a homomorphic encryption operation device receiving the first ciphertext from the homomorphic encryption device and performing an approximate arithmetic operation of a transcendental function with respect to the first ciphertext and a second ciphertext by performing a homomorphic multiplication operation in a binary tree structure.

公开(公告)号：US20210344479A1

公开(公告)日：2021-11-04

申请号：US17115161

申请日：2020-12-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wijik LEE ,  Youngsik MOON ,  Hongrak SON ,  Jaehun JANG

IPC: H04L9/00 ,  H04L9/14 ,  H04L9/30

Abstract: A homomorphic encryption processing device includes the processing circuitry is configured to generate ciphertext operation level information based on field information. The field information represents a technology field to which homomorphic encryption processing is applied. The ciphertext operation level information represents a maximum number of multiplication operations between homomorphic ciphertexts without a bootstrapping process. The processing circuitry is further configured to select and output a homomorphic encryption parameter based on the ciphertext operation level information. The processing circuitry is further configured to perform one of a homomorphic encryption, a homomorphic decryption and a homomorphic operation, based on the homomorphic encryption parameter. The homomorphic encryption processing device may adaptively generate a homomorphic encryption parameter according to a ciphertext operation level information determined based on a field information, and may perform a homomorphic encryption, a homomorphic decryption and a homomorphic operation based on the homomorphic encryption parameter.

公开(公告)号：US20230368019A1

公开(公告)日：2023-11-16

申请号：US18063323

申请日：2022-12-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hongrak SON ,  Jaiyoung PARK ,  Jungho AHN ,  Youngsik MOON

IPC: G06N3/08 ,  G06N5/04

CPC classification number: G06N3/08 ,  G06N5/04

Abstract: A method of operating a deep learning system configured to perform private inferences, including performing a convolution operation with respect to input values; and outputting result values from the convolution operation using an activation function, wherein the activation function includes a Hermitic expansion using a Hermite polynomial as an eigenfunction to perform a Fourier transform.

公开(公告)号：US20230141837A1

公开(公告)日：2023-05-11

申请号：US17830985

申请日：2022-06-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngsik MOON ,  Jiyoup KIM ,  Hanbyeul NA ,  Hongrak SON ,  Hyunsang CHO

IPC: H04L9/00 ,  G16Y30/10 ,  H04L9/06

CPC classification number: H04L9/008 ,  G16Y30/10 ,  H04L9/0656

Abstract: A device for supporting a homomorphic encryption operation includes a ciphertext conversion circuit configured to convert first ciphertexts corresponding to a first operation size to second ciphertexts corresponding to a second operation size, different from the first operation size, to convert the operated ciphertext having the second operation size to a third ciphertexts corresponding to the first operation size, and to perform a homomorphic encryption operation on the second ciphertexts.