![]() Kernel, hardware peripherals, and user space processes are initiated at boot. ![]() This is the case because booting is the initial stage of a computing cycle. The boot process can be detrimental to computers, if not secured. TPM-based FDE seals the FDE secret key to the full EFI state, including the kernel command line, which is subsequently unsealed by the initrd code in the secure-boot protected kernel.efi at boot time.įor further reading about FDE, you can find the key aspects here and more extensive documentation can be found here. Ubuntu Core 20 uses full disk encryption (FDE) whenever the hardware allows, protecting both the confidentiality and integrity of a device’s data when there’s physical access to a device, or after a device has been lost or stolen.īuilt-in FDE support requires both UEFI Secure Boot and TPM (Trusted Platform Module) support, but its implementation in Ubuntu Core is generic and widely compatible to help support a range of hardware. Understanding FDE and Secure Boot Fundamentals of FDE A network connection with Internet access. ![]() 2 USB 2.0 or 3.0 flash drives (2GB minimum).An Intel NUC with BIOS updated to the latest version ( update instructions).Full Disk Encryption and Secure Boot fundamentals.With Ubuntu Core, you are able to execute remote updates and patches for your appliances and devices, but for development and prototyping, we recommend Ubuntu Server. We recommend you use Ubuntu Core for “fire and forget” purposes where you won’t want to iterate on the software. ![]() A quick introduction for understanding the concepts and a simple walk through the process of preparing and flashing an Intel NUC image, will be followed.įDE and Secure Boot are key security features which have been incorporated into Ubuntu Core 20 release, complementing the out-of-the-box security characteristics already available in previous versions.īear in mind, Ubuntu Core is production-friendly, not necessarily developer-friendly. In this tutorial, we will show the simplicity of the process of enabling Full Disk Encryption (FDE) and Secure Boot on Ubuntu Core on platforms with Trusted Platform Module (TPM) support. ![]()
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February 2023
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