公开(公告)号：US20250023707A1

公开(公告)日：2025-01-16

申请号：US18768933

申请日：2024-07-10

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Graz University of Technology

Inventor： Ahmet Can MERT ,  . AIKATA ,  Sujoy SINHA ROY ,  Sunmin KWON ,  Maksim DERIABIN

IPC: H04L9/00

Abstract: An operation method includes obtaining an input matrix including a coefficient of a polynomial, based on a preprocessing unit (PU), performing a preprocessing operation on the coefficient, based on a first number-theoretic transform (NTT) architecture, performing a first NTT operation on a column element of the input matrix for which the preprocessing operation is completed, performing a Hadamard product operation between a result of the first NTT operation and a twiddle factor, and based on a second NTT architecture, performing a second NTT operation on a row element of the input matrix for which the Hadamard product operation is completed.

公开(公告)号：US20240340158A1

公开(公告)日：2024-10-10

申请号：US18625437

申请日：2024-04-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Rakyong CHOI ,  Andrey KIM ,  Yongwoo LEE ,  Hyungchul KANG ,  Sunmin KWON

IPC: H04L9/00 ,  H04L9/06

CPC classification number: H04L9/008 ,  H04L9/06

Abstract: Disclosed is a homomorphic encryption operation apparatus and method. The homomorphic encryption operation method is performed by a computing device that includes processing hardware and storage hardware, and the method includes: receiving, and storing in the storage hardware, a ciphertext including modules; receiving, and storing in the storage hardware, an operation key including a relinearization key corresponding to the ciphertext; and performing, by the processing hardware, a homomorphic encryption operation on the ciphertext, wherein a modulus of the ciphertext is determined by the processing hardware based on a dimension of the modules and a number of the modules.

公开(公告)号：US20210409189A1

公开(公告)日：2021-12-30

申请号：US17341824

申请日：2021-06-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dong-Hoon YOO ,  Sunmin KWON ,  Jieun EOM

IPC: H04L9/00 ,  G06F21/62

Abstract: A method and device for comparing movement paths based on homomorphic encrypted is disclosed, where a server includes a processor configured to collect first encrypted movement path information of a comparison target encrypted by a common key, receive, from a user device, second encrypted movement path information of a user of the user device encrypted by a private key, compare the first encrypted movement path information and the second encrypted movement path information, decrypt a portion of a result of the comparison by the common key to generate a partially decrypted comparison result, and provide the partially decrypted result of the comparison to the user.

公开(公告)号：US20170091961A1

公开(公告)日：2017-03-30

申请号：US15073731

申请日：2016-03-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Heejun SHIM ,  Kwontaek KWON ,  Sunmin KWON ,  Hoyoung KIM ,  Seonghun JEONG

IPC: G06T11/00 ,  G06T1/20

CPC classification number: G06T11/001 ,  G06T1/20 ,  G06T11/40 ,  G06T15/04 ,  G06T2210/36

Abstract: A method of determining a level of detail (LOD) for a texturing includes: acquiring texture coordinate data on pixels included in an upper block; determining a reference quad among quads included in the upper block; determining a similarity between the determined reference quad and the upper block using texture coordinates of the determined reference quad and the upper block; and determining LODs of remaining quads among the quads included in the upper block to be the same as an LOD of the determined reference quad in response to the determining of the similarity including determining that the determined reference quad and the upper block are similar.