公开(公告)号：US12120105B2

公开(公告)日：2024-10-15

申请号：US18100251

申请日：2023-01-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungkyu Cho ,  Jieun Keum ,  Sehee Han ,  Eunyoung Kwon ,  Daehaeng Cho

IPC: H04L9/40

CPC classification number: H04L63/0823 ,  H04L63/045 ,  H04L63/0876 ,  H04L63/107 ,  H04L63/20

Abstract: Provided is a method, performed by an electronic device, of managing keys for accessing a plurality of services. The method includes transmitting, by a secure domain (SD) in a secure area of the electronic device, a certificate of the SD to a plurality of service providers (SPs); receiving, by an application installed in the electronic device, a certificate of each of the plurality of SPs from the plurality of SPs; receiving, by the application, first signed data from a first SP among the plurality of SPs; authenticating, by the application, the first signed data by using a certificate of the first SP received from the first SP and obtaining an encrypted key of the first SP from the first signed data; decrypting, by the SD, the encrypted key of the first SP by using a private key of the SD; and storing the decrypted key of the first SP in a first instance corresponding to the first SP among a plurality of instances of the SD.

公开(公告)号：US20210176230A1

公开(公告)日：2021-06-10

申请号：US17113969

申请日：2020-12-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungkyu Cho ,  Jieun Keum ,  Sehee Han ,  Eunyoung Kwon ,  Daehaeng Cho

IPC: H04L29/06

Abstract: Provided is a method, performed by an electronic device, of managing keys for accessing a plurality of services in an integrated manner to improve interoperability and secure security. The method includes transmitting, by a secure domain (SD) in a secure area of the electronic device, a certificate of the SD to a plurality of service providers (SPs); receiving, by an application installed in the electronic device, a certificate of each of the plurality of SPs from the plurality of SPs; receiving, by the application, first signed data from a first SP among the plurality of SPs; authenticating, by the application, the first signed data by using a certificate of the first SP received from the first SP and obtaining an encrypted key of the first SP from the first signed data; decrypting, by the SD, the encrypted key of the first SP by using a private key of the SD; and storing the decrypted key of the first SP in a first instance corresponding to the first SP among a plurality of instances of the SD.

公开(公告)号：US12238524B2

公开(公告)日：2025-02-25

申请号：US17923094

申请日：2021-05-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jieun Keum ,  Sehee Han ,  Sungkyu Cho

IPC: H04W12/30 ,  H04W4/50 ,  H04W4/80

Abstract: According to an embodiment, a method, performed by an electronic device, of providing a ranging-based service may include: transmitting, from a service application installed in the electronic device to a framework, information related to service data, the information related to the service data including a service deployment case and information about a storage location of the service data; when the electronic device approaches a reader device, receiving first data from the reader device; setting up a secure channel with the reader device by using information stored in a common applet identified based on the first data, the common applet being installed in a secure component of the electronic device; and transmitting the service data to the reader device, based on second data received from the reader device.

公开(公告)号：US20240219548A1

公开(公告)日：2024-07-04

申请号：US18607892

申请日：2024-03-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sehee Han ,  Seongah Jeong ,  Kangjin Yoon ,  Haeyoung Jun

IPC: G01S13/02 ,  G01S5/02 ,  G01S13/76 ,  H04B1/7163 ,  H04W4/029 ,  H04W12/104 ,  H04W12/122 ,  H04W12/64

CPC classification number: G01S13/0209 ,  G01S5/0284 ,  G01S13/765 ,  H04B1/7163 ,  H04W4/029 ,  H04W12/104 ,  H04W12/122 ,  H04W12/64

Abstract: Provided is a secure ranging method capable of blocking access of a malicious user by preventing an attack by the malicious user when ranging is performed using an ultra-wideband (UWB). Also, provided is a method of increasing accuracy of ranging. A method of operating an electronic device for performing ranging by using a UWB in a wireless communication system includes: transmitting and receiving at least one frame for ranging, to and from at least one other electronic device; obtaining a first ranging value and a second ranging value, based on the at least one frame; and performing integrity checking, based on a result of comparing the first ranging value with the second ranging value.

公开(公告)号：US11933874B2

公开(公告)日：2024-03-19

申请号：US17893270

申请日：2022-08-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sehee Han ,  Seongah Jeong ,  Kangjin Yoon ,  Haeyoung Jun

IPC: H04W4/00 ,  G01S5/02 ,  G01S13/02 ,  G01S13/76 ,  H04B1/7163 ,  H04W4/029 ,  H04W12/104 ,  H04W12/122 ,  H04W12/64

CPC classification number: G01S13/0209 ,  G01S5/0284 ,  G01S13/765 ,  H04B1/7163 ,  H04W4/029 ,  H04W12/104 ,  H04W12/122 ,  H04W12/64

Abstract: Provided is a secure ranging method capable of blocking access of a malicious user by preventing an attack by the malicious user when ranging is performed using an ultra-wideband (UWB). Also, provided is a method of increasing accuracy of ranging. A method of operating an electronic device for performing ranging by using a UWB in a wireless communication system includes: transmitting and receiving at least one frame for ranging, to and from at least one other electronic device; obtaining a first ranging value and a second ranging value, based on the at least one frame; and performing integrity checking, based on a result of comparing the first ranging value with the second ranging value.

公开(公告)号：US11740343B2

公开(公告)日：2023-08-29

申请号：US17748714

申请日：2022-05-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kangjin Yoon ,  Sehee Han

IPC: G01S13/02 ,  H04W64/00 ,  H04L9/06 ,  H04B1/7156 ,  H04B1/7143

CPC classification number: G01S13/0209 ,  H04B1/7143 ,  H04B1/7156 ,  H04L9/0631 ,  H04L9/0643 ,  H04W64/00 ,  H04B2001/71566

Abstract: A method of a first device which performs ranging by using an ultra-wide band (UWB) and the first device are provided. The method of the first device includes performing ranging with a second device in a first ranging round among a plurality of ranging rounds included in a first ranging block, determining whether to perform hopping, based on a result of the performing of the ranging, when it is determined to perform the hopping, determining an index of a second ranging round for performing ranging with a second device, based on a random-number generation function, and performing the ranging with the second device in the second ranging round of a second ranging block.