+.P
+Create FIT image with compressed kernel and sign it with keys in the
+/public/signing-keys directory. Add corresponding public keys into u-boot.dtb,
+skipping those for which keys cannot be found. Also add a comment.
+.nf
+.B mkimage -f kernel.its -k /public/signing-keys -K u-boot.dtb \\\\
+.br
+.B -c "Kernel 3.8 image for production devices" kernel.itb
+.fi
+
+.P
+Update an existing FIT image, signing it with additional keys.
+Add corresponding public keys into u-boot.dtb. This will resign all images
+with keys that are available in the new directory. Images that request signing
+with unavailable keys are skipped.
+.nf
+.B mkimage -F -k /secret/signing-keys -K u-boot.dtb \\\\
+.br
+.B -c "Kernel 3.8 image for production devices" kernel.itb
+.fi