Provided by: sbsigntool_0.9.2-2ubuntu1.1_amd64 
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NAME
sbsign - UEFI secure boot signing tool
SYNOPSIS
sbsign [options] --key <keyfile> --cert <certfile> <efi-boot-image>
DESCRIPTION
Sign an EFI boot image for use with secure boot.
OPTIONS
--engine <eng> use the specified engine to load the key --key <keyfile> signing key (PEM-encoded RSA private key) --cert <certfile> certificate (x509 certificate) --detached write a detached signature, instead of a signed binary --output <file> write signed data to <file> (default <efi-boot-image>.signed, or <efi-boot-image>.pk7 for detached signatures)