Enable TrustFence™ support in Digi Embedded Yocto

TrustFence support in Digi Embedded Yocto is encapsulated in the TrustFence class. This class must be inherited into your project's conf/local.conf configuration file in order to use TrustFence support:

INHERIT += "trustfence"

The TrustFence class configures a set of default configuration options, including:

Secure boot with both signed and encrypted images
U-Boot environment encryption
Encrypted root filesystem

These defaults can be further modified by adding TRUSTFENCE configuration macros to your conf/local.conf file.