公开(公告)号：US11057206B2

公开(公告)日：2021-07-06

申请号：US16528192

申请日：2019-07-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-seok Bae ,  Hyo-sun Hwang ,  Ki-tak Kim ,  Jong-hoon Shin ,  Jin-su Hyun

IPC: H04L9/08 ,  H04L9/32

Abstract: An encryption device for generating an electronic signature for security includes a random number generation module configured to generate at least one random number, a random number adjusting module configured to generate a one-time random number satisfying a random number condition in an elliptic curve cryptography-based digital signature algorithm (ECDSA) by adjusting the at least one random number; and an electronic signature generation module configured to generate the electronic signature using the one-time random number based on the ECDSA.

公开(公告)号：US11228438B2

公开(公告)日：2022-01-18

申请号：US16146409

申请日：2018-09-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jong-hoon Shin ,  Ki-seok Bae ,  Hong-mook Choi ,  Ji-su Kang ,  Jae-hyeok Kim ,  Hye-soo Lee ,  Hyo-sun Hwang

IPC: H04L9/32 ,  H04N21/426 ,  H04N1/00 ,  H04L9/08 ,  H04L29/06 ,  G06N3/08 ,  H04N21/414 ,  H04N21/4223

Abstract: A security device providing a security function for an image, a camera device including the same, and a system on chip (SOC) for controlling the camera device are provided. An image transmitting device may include an image processor configured to process an image to be transmitted to an external device, and a security circuit including a key shared with the external device. The security circuit may be configured to generate a tag used for image authentication by using data of a partial region of the image and the key based on region information for selecting the partial region of the image. The image transmitting device may be configured to transmit the tag, generated to correspond to the image, to the external device with data of the image.