And what about this:
Code:
cd /mnt/us
dd if=Update_mkk-20140214-k5-ALL_install.bin bs=192 count=1 2>|/dev/null | tail -c +65 >| "mkk.psig"
tail -c +$(expr 192 + 1) "Update_mkk-20140214-k5-ALL_install.bin" 2>|/dev/null | openssl dgst -sha256 -verify "/etc/uks/pubdevkey01.pem" -signature "mkk.psig"