Syntax
bootgen -image test.bif -o boot.bin -p xc7z020clg48 -encrypt efuseDescription
This option specifies the partname of the AMD device. This is needed for generating an encryption key. It
is copied verbatim to the *.nky file in the
Device line of the nky file. This is applicable
only when encryption is enabled. If the key file is not present in the path
specified in BIF file, then a new encryption key is generated in the same path and
xc7z020clg484 is copied along side the Device field in the nky file. The generated image is an encrypted image.