×

Secure recovery apparatus and method

  • US 9,189,340 B2
  • Filed: 04/09/2014
  • Issued: 11/17/2015
  • Est. Priority Date: 08/16/2011
  • Status: Active Grant
First Claim
Patent Images

1. A computing device, comprising:

  • a processor;

    a secure read-only location for storing at least one secure boot image; and

    a memory including initiation and recovery instructions for initiating a boot cycle of the computing device that, when executed by the processor, cause the computing device to;

    initiate loading of a boot image, the boot image including multiple levels of boot code;

    determine, during the boot cycle, whether each of the multiple levels of boot code is usable or unusable; and

    in response to determining a respective level of boot code is unusable, stop the boot cycle, load a corresponding secure level of boot code from the secure read-only location, replace the respective level of boot code with the secure level of boot code, and resume the same boot cycle at a last known level of boot code determined to be usable.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×