Generate MACsec secure channel key Generate MACsec connectivity association key (CAK) /usr/bin/hexdump -n 16 -e '4/4 "%08x" 1 "\n"' /dev/random Generate MACsec connectivity association name (CKN) /usr/bin/hexdump -n 32 -e '8/4 "%08x" 1 "\n"' /dev/random