公开(公告)号：US20250165348A1

公开(公告)日：2025-05-22

申请号：US19025512

申请日：2025-01-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Youqing LIAO ,  Haiwu CHEN ,  Chengxu GAI

IPC: G06F11/14

Abstract: A processor, a method for obtaining information, a board, and a network device are provided. The processor includes a control circuit, a first register, and a cache, and the processor is communicatively connected to a reset-safe non-volatile storage medium. The control circuit is configured to: obtain a reset indication, where the reset indication is an indication generated when the processor runs abnormally; obtain related information of the processor based on the reset indication, where the related information includes at least one of register information of the first register or data stored in the cache; and store the related information in the reset-safe non-volatile storage medium. When the processor runs abnormally, the control circuit inside the processor can obtain the related information of the processor based on the reset indication, so that reliability of a manner of obtaining the related information is high.

公开(公告)号：US20240005007A1

公开(公告)日：2024-01-04

申请号：US18469807

申请日：2023-09-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haiwu CHEN ,  Honghong DONG ,  Bin CAO

IPC: G06F21/57 ,  G06F21/64 ,  G06F21/60

CPC classification number: G06F21/575 ,  G06F21/64 ,  G06F21/602

Abstract: A secure boot method. The method may be performed by a communication device. According to the method, the communication device can flexibly perform secure boot by using different cryptographic algorithms based on different security requirements, to ensure security of the communication device. The communication device may obtain external secure boot code (ESBC). The ESBC includes a code segment of a first cryptographic algorithm. After the ESBC is obtained, the communication device may perform an integrity check on the ESBC, and after the integrity check on the ESBC succeeds, verify a signature of next-level software based on the first cryptographic algorithm. When a cryptographic algorithm used by the communication device cannot meet a security requirement, the ESBC may be obtained, and the first cryptographic algorithm included in the ESBC is used to perform the secure boot, to meet the security requirement.

公开(公告)号：US20220245286A1

公开(公告)日：2022-08-04

申请号：US17726605

申请日：2022-04-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haiwu CHEN ,  Bin CAO ,  Mengnan ZHANG ,  Jianying QIAN

IPC: G06F21/64 ,  H04L9/32

Abstract: A software verification method and apparatus are provided. The method includes: reading flag information, where the flag information is used to indicate a target digital certificate; selecting one of a plurality of digital certificates as a target digital certificate based on the flag information, where the plurality of digital certificates include a first digital certificate and a second digital certificate, and the target digital certificate includes a cryptographic resource; and verifying software deployed on a device based on the cryptographic resource. Using the foregoing technical solution can ensure continuity of the software verification service in the device.