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SECURE INPUT METHOD BASED ON VIRTUAL MACHINE

  • US 20080005320A1
  • Filed: 05/17/2007
  • Published: 01/03/2008
  • Est. Priority Date: 05/17/2006
  • Status: Active Grant
First Claim
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1. A secure input method based on a virtual machine, comprising:

  • Step A;

    an application invokes a secure input interface of a virtual machine monitor and transfers a logic address and length of input buffer area of the application;

    Step B;

    the virtual machine monitor accepts the secure input invoking, turns on a secure input switch and converts the logic address of the input buffer area into a physical address;

    Step C;

    the virtual machine monitor receives keyboard input information, converts it into a key value and saves the converted key value in the input buffer area; and

    Step D;

    the virtual machine monitor judges that the secure input is completed, returns an input result to the application and turns off the secure input switch.

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