Sbvarsign (1) Linux Manual Page

sbvarsign – UEFI authenticated variable signing tool

Synopsis

sbvarsign [,options/] ,–key <keyfile> –cert <certfile> <var-name> <var-data-file>/

Sign a blob of data for use in SetVariable().

–engine <eng>

use the specified engine to load the key

–key <keyfile>

signing key (PEM-encoded RSA private key)

–cert <certfile>

certificate (x509 certificate)

–include-attrs

include attrs at beginning of output file

–guid <GUID>

EFI GUID for the variable. If omitted, EFI_IMAGE_SECURITY_DATABASE or EFI_GLOBAL_VARIABLE (depending on <var-name>) will be used.

–attr <attrs>

variable attributes. One or more of: NON_VOLATILE BOOTSERVICE_ACCESS RUNTIME_ACCESS TIME_BASED_AUTHENTICATED_WRITE_ACCESS APPEND_WRITE

Separate multiple attrs with a comma,

default is all attributes, TIME_BASED_AUTH… is always included.

–output <file>

write signed data to <file> (default <var-data-file>.signed)