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:
Jul. 28, 2020
Filed:
May. 21, 2019
Intel Corporation, Santa Clara, CA (US);
Soham Jayesh Desai, Atlanta, GA (US);
Reshma Lal, Hillsboro, OR (US);
Pradeep Pappachan, Hillsboro, OR (US);
Bin Xing, Hillsboro, OR (US);
INTEL CORPORATION, Santa Clara, CA (US);
Abstract
Technologies for secure enumeration of USB devices include a computing device having a USB controller and a trusted execution environment (TEE). The TEE may be a secure enclave protected secure enclave support of the processor. In response to a USB device connecting to the USB controller, the TEE sends a secure command to the USB controller to protect a device descriptor for the USB device. The secure command may be sent over a secure channel to a static USB device. A driver sends a get device descriptor request to the USB device, and the USB device responds with the device descriptor. The USB controller redirects the device descriptor to a secure memory buffer, which may be located in a trusted I/O processor reserved memory region. The TEE retrieves and validates the device descriptor. If validated, the TEE may enable the USB device for use. Other embodiments are described and claimed.