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1. (WO2017172665) SECURE DRIVER PLATFORM

Pub. No.:    WO/2017/172665    International Application No.:    PCT/US2017/024397
Publication Date: Fri Oct 06 01:59:59 CEST 2017 International Filing Date: Wed Mar 29 01:59:59 CEST 2017
IPC: G06F 9/54
G06F 21/74
Applicants: MICROSOFT TECHNOLOGY LICENSING, LLC
Inventors: KIM, Minsang
RAJEEV, Kumar
WOHLGEMUTH, Jason S.
DAKEN, Aacer H.
WIELAND, Peter
Title: SECURE DRIVER PLATFORM
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.