sbverify --version (return code: 0)
sbverify 0.6
sbverify --help (return code: 0)
Usage: sbverify [options] --cert <certfile> <efi-boot-image>
Verify a UEFI secure boot image.
Options:
--cert <certfile> certificate (x509 certificate)
--no-verify don't perform certificate verification
--detached <file> read signature from <file>, instead of
looking for an embedded signature