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Protected device management

  • US 9,426,147 B2
  • Filed: 08/22/2014
  • Issued: 08/23/2016
  • Est. Priority Date: 12/21/2009
  • Status: Active Grant
First Claim
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1. A computer-implemented method comprising:

  • authenticating first credentials of a user of a system before access is allowed to any device of a plurality of devices attached to the system;

    intercepting an event indicating a hot-plug attachment of a new device to the system, wherein the intercepting is performed by firmware in a secure partition of the system, and the secure partition is isolated from a host operating system of the system;

    requesting second credentials to access the new device using the firmware to establish trusted path connections to a display device to display a request for the second credentials and a user input device to receive the second credentials, wherein the second credentials are requested by the firmware without rebooting the system;

    authenticating the second credentials;

    enabling access to the new device after authenticating the second credentials; and

    delivering a hot plug event for the new device from the secure partition to the host operating system.

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