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:
Jun. 29, 2021
Filed:
Sep. 27, 2018
Amlogic (Shanghai) Co., Ltd., Shanghai, CN;
Peifu Jiang, Shanghai, CN;
Pengguang Zhu, Shanghai, CN;
Qi Cao, Shanghai, CN;
Yong Wan, Shanghai, CN;
AMLOGIC (SHANGHAI) CO., LTD., Shanghai, CN;
Abstract
A method for improving the security of a trusted application comprises: signing the trusted application in a hierarchical signature mode by the upper computer to generate a signature file package about the trusted application, and saving the signature file package in a main operation system; obtaining the signature file package and loading the signature file package to the second operation environment by the security execution system; parsing the signature file package by the security execution system to obtain a parsed result; and performing hierarchical verification on the parsed result by the security execution system, and if the hierarchical verification is passed, it will indicate that the trusted application is in a security state, otherwise, it is in a non-security state. The defects of lack of a security authentication mode for the trusted application and relatively low security due to mere adoption of a simple digital signature mechanism are overcome.