Invention Grant
- Patent Title: Providing secure input to a system with a high-assurance execution environment
- Patent Title (中): 为具有高度执行环境的系统提供安全输入
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Application No.: US12323169Application Date: 2008-11-25
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Publication No.: US07882566B2Publication Date: 2011-02-01
- Inventor: Idan Avraham , Christine M. Chew , John E. Paff , Paul Roberts , Hirofumi Yamamoto
- Applicant: Idan Avraham , Christine M. Chew , John E. Paff , Paul Roberts , Hirofumi Yamamoto
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Agency: Woodcock Washburn LLP
- Main IPC: G06F12/14
- IPC: G06F12/14

Abstract:
Methods for maintaining the security of a secured execution environment on a system comprising said secured execution environment and a second execution environment are disclosed. A maintained current state for the secured execution environment is selected from among a group of possible states including a standard input mode state and a nexus input mode state. A flow of user input is directed according to the current state through a secure kernel of both the second environment and the secured execution environment.
Public/Granted literature
- US20090083862A1 PROVIDING SECURE INPUT TO A SYSTEM WITH A HIGH-ASSURANCE EXECUTION ENVIROMENT Public/Granted day:2009-03-26
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