SBSIGN(1) SBSIGN(1) (NAME) sbsign - (Secure Boot) UEFI (SYNOPSIS) sbsign [] --key --cert (DESCRIPTION) EFI (Secure Boot). (OPTIONS) --engine --key ( RSA PEM) --cert ( x509) --addcert --detached (detached) --output ( .signed .pk7 ) sbsign 0.9.5 January 2026 SBSIGN(1)