×

Secure authentication of firmware configuration updates

  • US 9,734,311 B1
  • Filed: 03/17/2015
  • Issued: 08/15/2017
  • Est. Priority Date: 03/17/2015
  • Status: Active Grant
First Claim
Patent Images

1. A computer-implemented method for invoking a platform-specific firmware function in a unified extensible firmware interface (UEFI) environment, the method comprising:

  • receiving a request, by way of a UEFI firmware, to perform a UEFI runtime function to get or set a value for a firmware variable, the firmware variable comprising a variable name and a variable value;

    determining that access to firmware assets is authenticated or unauthenticated; and

    in response to determining that the access to the firmware assets is unauthenticated, authenticating the access byverifying that the variable name corresponds to an authentication function,verifying, by the authentication function, that the variable value matches an authentication value, andsetting, based at least in part on verifying that the variable value matches the authentication value by the authentication function, an access status to the firmware assets as authenticated to enable a subsequent request to execute a subsequent UEFI runtime function.

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