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:
Jan. 25, 2022
Filed:
Feb. 25, 2020
Samsung Electronics Co., Ltd., Suwon-si, KR;
Jinha Hwang, Suwon-si, KR;
Kyungsoo Kwag, Suwon-si, KR;
Inho Kim, Suwon-si, KR;
Dongsun Lee, Suwon-si, KR;
Jungkyuen Lee, Suwon-si, KR;
Jongtak Lee, Suwon-si, KR;
Kyungim Jung, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A device and a method for authenticating an application in an execution environment in a trust zone are provided. The method includes executing a client application (CA) in a normal world, receiving, in the normal world, a request for receiving a service of a trusted application (TA) of a secure world from the CA, acquiring, when the request is received in the normal world, source information of the CA loaded in a memory of the device, acquiring, in the normal world, first hash information from the source information, providing, to the secure world, the first hash information together with signature information and a sub certificate included in the CA, and authenticating the CA based on the sub certificate and a root certificate of the TA in the secure world.