公开(公告)号：US10943020B2

公开(公告)日：2021-03-09

申请号：US16111228

申请日：2018-08-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Cui Hu ,  ZhuFeng Tan ,  Shaojie Sun

IPC: G06F21/60 ,  H04L9/12 ,  H04L9/06 ,  G06F21/85 ,  G07F7/08 ,  G06Q20/32 ,  H04L9/08

Abstract: A system includes at least two buses including a first bus and a second bus, an encryption and decryption system corresponding to each bus, at least one signal processing module corresponding to each bus, and a bus converter coupled between the first bus and the second bus. According to the system provided in embodiments of the present invention, because data transmitted on a bus is encrypted data, even though an attacker obtains bus data by means of a probe attack, it is quite difficult to break a key, and an anti-attack capability of the system can be improved.

公开(公告)号：US20230214955A1

公开(公告)日：2023-07-06

申请号：US18184659

申请日：2023-03-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fei Huang ,  Cui Hu ,  Weicheng Zhang ,  Jieyu Chu ,  Qiushi Qin

IPC: G06T1/20

CPC classification number: G06T1/20

Abstract: Embodiments of this disclosure provide an electronic apparatus and an image processing method of the electronic apparatus. The electronic apparatus includes: an artificial intelligence (AI) processor, configured to perform first image signal processing on a first image signal to obtain a second image signal, where the first image signal is obtained based on image data output by an image sensor; and an image signal processor (ISP), configured to perform second image signal processing on the second image signal to obtain an image processing result. In this way, image processing can be flexibly performed by the ISP in combination with the AI processor, and the image processing result is improved.

公开(公告)号：US12167004B2

公开(公告)日：2024-12-10

申请号：US17897808

申请日：2022-08-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Cui Hu ,  Jingwei Chen ,  Liang Chen ,  Juanpeng He ,  Shuo Lian ,  Shuangquan Wang

IPC: H04N19/30 ,  H04N19/136 ,  H04N19/172 ,  H04N19/436

Abstract: Embodiments of this application provide an image transmission method and apparatus. The method includes: converting a first high-resolution image into a first low-resolution image, where first resolution of the first high-resolution image is higher than second resolution of the first low-resolution image; encoding the first low-resolution image to obtain a first bitstream; obtaining a second high-resolution image, where third resolution of the second high-resolution image is higher than the second resolution, and the second high-resolution image includes high-frequency information of the first high-resolution image and excludes low-frequency information of the first high-resolution image; obtaining an image residual between the first high-resolution image and the second high-resolution image, where the image residual is used to reflect the low-frequency information of the first high-resolution image; encoding the image residual to obtain a second bitstream; and sending the first bitstream and the second bitstream.

公开(公告)号：US20190173665A1

公开(公告)日：2019-06-06

申请号：US16258114

申请日：2019-01-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Cui Hu ,  ZhuFeng Tan ,  Shaojie Sun

IPC: H04L9/00

Abstract: Embodiments of the present application disclose an operation method. The method includes: obtaining, by the input/output interface, an input ciphertext; performing, by the decryption circuit, a modular exponentiation operation according to the ciphertext and a preset operation parameter; and using, by the microprocessor, an operation result obtained after the modular exponentiation operation as a plaintext obtained after decryption. The performing, by the decryption circuit, a modular exponentiation operation according to the ciphertext and a preset operation parameter is specifically: breaking, by the decryption circuit, the modular exponentiation operation into multiple iterative first operations, where the first operation is a modular square operation or a modular multiplication operation; sending, by the decryption circuit, the ciphertext and the operation parameter to the arithmetic unit; and performing, by the arithmetic unit, the first operation according to the ciphertext and the operation parameter to obtain a modular square value or a modular multiplication value

公开(公告)号：US10601577B2

公开(公告)日：2020-03-24

申请号：US16258114

申请日：2019-01-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Cui Hu ,  ZhuFeng Tan ,  Shaojie Sun

IPC: H04L29/06 ,  H04L9/00 ,  G06F7/72 ,  G06F21/72 ,  G06F7/58

Abstract: Embodiments of the present application disclose an operation method. The method includes: obtaining, by the input/output interface, an input ciphertext; performing, by the decryption circuit, a modular exponentiation operation according to the ciphertext and a preset operation parameter; and using, by the microprocessor, an operation result obtained after the modular exponentiation operation as a plaintext obtained after decryption. The performing, by the decryption circuit, a modular exponentiation operation according to the ciphertext and a preset operation parameter is specifically: breaking, by the decryption circuit, the modular exponentiation operation into multiple iterative first operations, where the first operation is a modular square operation or a modular multiplication operation; sending, by the decryption circuit, the ciphertext and the operation parameter to the arithmetic unit; and performing, by the arithmetic unit, the first operation according to the ciphertext and the operation parameter to obtain a modular square value or a modular multiplication value.

公开(公告)号：US20190139026A1

公开(公告)日：2019-05-09

申请号：US16235270

申请日：2018-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： ZhuFeng Tan ,  Cui Hu ,  Shaojie Sun

IPC: G06Q20/32 ,  G06F12/14

Abstract: This application relates to the field of communications technologies, and discloses a mobile payment method. The method is applied to a system on chip SOC, where the SOC includes a secure element SE integrated into the SOC, and the method includes: receiving, by the SE, a transaction request; obtaining, by the SE, a first check value from an external memory; performing a security check on the external memory according to the first check value and a second check value that is stored locally in the SOC; and if the external memory passes the security check, obtaining, by the SE, first transaction data from the external memory, and processing the transaction request based on the first transaction data. This application is applied to a mobile payment process.