The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2025
Filed:
Nov. 23, 2022
Phytium Technology Co., Ltd., Tianjin, CN;
Yanzhao Feng, Tianjin, CN;
Yufeng Guo, Tianjin, CN;
Ming Zhang, Tianjin, CN;
Qingshan Zhu, Tianjin, CN;
Zhuo Ma, Tianjin, CN;
PHYTIUM TECHNOLOGY CO., LTD., Tianjin, CN;
Abstract
A security architecture method suitable for a security architecture system is provided. The security architecture system includes a first execution environment subsystem and a secure element subsystem. The secure element subsystem is configured to store a key. A hardware isolation mechanism is arranged between the secure element subsystem and the first execution environment subsystem. The method includes: obtaining a key derivation request from the first execution environment subsystem, the key derivation request carrying key identifier information; and allowing a derived key to be generated by using the key corresponding to the key identifier information in response to the first execution environment subsystem have an access authority to access the key corresponding to the key identifier information. The derived key is used to perform a cryptographic operation.