Debian Making Progress On UEFI SecureBoot Support In 2018 - Phoronix
In Summary : Fortunately, Debian developers and other stakeholders just finished up a development sprint in Germany for working on the sup...
https://updatesinfosec.blogspot.com/2018/05/debian-making-progress-on-uefi.html
In Summary :
Fortunately, Debian developers and other stakeholders just finished up a development sprint in Germany for working on the support. They have been figuring out the requirements for the signing process, how to integrate it into the build process, and they started working on the support for the kernel, Dak, fwupdate, shim, and GRUB. [...]

kindly refer the following link as follow up :
https://www.phoronix.com/scan.php?page=news_item&px=Debian-UEFI-SecureBoot-2018
Fortunately, Debian developers and other stakeholders just finished up a development sprint in Germany for working on the support. They have been figuring out the requirements for the signing process, how to integrate it into the build process, and they started working on the support for the kernel, Dak, fwupdate, shim, and GRUB. [...]

kindly refer the following link as follow up :
https://www.phoronix.com/scan.php?page=news_item&px=Debian-UEFI-SecureBoot-2018