Secure boot - building image by enabling trustfence-cst

Hi

My current assignment is to set up secure boot. I am building an image by enabling trustfence. I took latest cst-3.1.0 for the build. As per the digi documents I copied the file in download folder . After I execute the build command bitbake core-image-base.I got errors showed below. Please let me how can I resolve this issue.

WARNING: /usr/local/dey-2.4/sources/meta-digi/meta-digi-arm/recipes-kernel/linux/linux-dey_4.9.bb.do_compile is tainted from a forced run 0:00:06
Initialising tasks: 100% |########################################################################################################| Time: 0:00:07
NOTE: Executing SetScene Tasks
NOTE: Executing RunQueue Tasks
ERROR: trustfence-cst-native-3.1.0-r0 do_unpack: Unpack failure for URL: ‘file://cst-3.1.0.tgz’. Unpack command PATH=“/usr/local/dey-2.4/sources/poky/scripts/native-intercept:/home/hmecl001594/workspace/ccimx6sbc/tmp/sysroots-uninative/x86_64-linux/usr/bin:/usr/local/dey-2.4/sources/poky/scripts:/home/hmecl001594/workspace/ccimx6sbc/tmp/work/x86_64-linux/trustfence-cst-native/3.1.0-r0/recipe-sysroot-native/usr/bin/x86_64-linux:/home/hmecl001594/workspace/ccimx6sbc/tmp/work/x86_64-linux/trustfence-cst-native/3.1.0-r0/recipe-sysroot-native/usr/bin:/home/hmecl001594/workspace/ccimx6sbc/tmp/work/x86_64-linux/trustfence-cst-native/3.1.0-r0/recipe-sysroot-native/usr/sbin:/home/hmecl001594/workspace/ccimx6sbc/tmp/work/x86_64-linux/trustfence-cst-native/3.1.0-r0/recipe-sysroot-native/usr/bin:/home/hmecl001594/workspace/ccimx6sbc/tmp/work/x86_64-linux/trustfence-cst-native/3.1.0-r0/recipe-sysroot-native/sbin:/home/hmecl001594/workspace/ccimx6sbc/tmp/work/x86_64-linux/trustfence-cst-native/3.1.0-r0/recipe-sysroot-native/bin:/usr/local/dey-2.4/sources/poky/bitbake/bin:/home/hmecl001594/workspace/ccimx6sbc/tmp/hosttools” tar xz --no-same-owner -f /home/hmecl001594/workspace/ccimx6sbc/downloads/cst-3.1.0.tgz failed with return value 2
ERROR: trustfence-cst-native-3.1.0-r0 do_unpack: Function failed: base_do_unpack
ERROR: Logfile of failure stored in: /home/hmecl001594/workspace/ccimx6sbc/tmp/work/x86_64-linux/trustfence-cst-native/3.1.0-r0/temp/log.do_unpack.13903
ERROR: Task (virtual:native:/usr/local/dey-2.4/sources/meta-digi/meta-digi-arm/recipes-bsp/trustfence-cst/trustfence-cst_3.1.0.bb:do_unpack) failed with exit code ‘1’
NOTE: Tasks Summary: Attempted 1787 tasks of which 1786 didn’t need to be rerun and 1 failed.

Summary: 1 task failed:
virtual:native:/usr/local/dey-2.4/sources/meta-digi/meta-digi-arm/recipes-bsp/trustfence-cst/trustfence-cst_3.1.0.bb:do_unpack
Summary: There were 2 WARNING messages shown.
Summary: There were 2 ERROR messages shown, returning a non-zero exit code.

tar xz --no-same-owner -f /home/hmecl001594/workspace/ccimx6sbc/downloads/cst-3.1.0.tgz

This command is getting failed .Please let me where will I modify ?