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:
May. 14, 2019
Filed:
Mar. 31, 2016
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Minsang Kim, Redmond, WA (US);
Kumar Rajeev, Redmond, WA (US);
Jason S. Wohlgemuth, Seattle, WA (US);
Aacer H. Daken, Renton, WA (US);
Peter Wieland, Seattle, WA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Techniques described herein enable the implementation of a secure driver framework. In one example, a method includes managing an unsecure operating system execution environment comprising a first user mode and a first kernel mode. The method can also include managing a secure execution environment comprising a second user mode and a second kernel mode, and executing a secure driver within the second user mode of the secure execution environment in response to a system call from an unsecure driver in the first kernel mode or the first user mode, wherein the secure driver enables the unsecure driver to communicate with a secure device. Furthermore, the method can include providing one or more system services of the second kernel mode to the secure driver.