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pesign + efikeygen

Signing tools for PE-COFF binaries. Compliant with the PE and Authenticode specifications.

(These serve a similar purpose to Microsoft's SignTool.exe, except for Linux.)

Examples

Generate a key for use with pesign, stored on disk:

efikeygen -d /etc/pki/pesign -S -TYPE -c 'CN=Your Name Key' -n 'Custom Secureboot'

(where TYPE is m if you're only signing kernel modules, and k otherwise).

For more complex and secure use cases (e.g., hardware tokens), see efikeygen man page (man efikeygen).

Sign a UEFI application using that key:

pesign -i grubx64.efi -o grubx64.efi.signed -c 'Custom Secureboot' -s

Show signatures on a UEFI application:

pesign -i grubx64.efi.signed -S

For more signing/verification operations, see the pesign man page (man pesign).